From a2c3c575babd47b2401569cb8e10d80341fa0def Mon Sep 17 00:00:00 2001 From: moneroexamples Date: Tue, 22 Nov 2016 17:34:38 +0800 Subject: [PATCH] Hinnant date library added --- ext/CMakeLists.txt | 3 +- ext/date/chrono_io.h | 668 ++++++ ext/date/date.h | 4823 +++++++++++++++++++++++++++++++++++++++++ ext/date/ios.h | 49 + ext/date/ios.mm | 405 ++++ ext/date/julian.h | 3046 ++++++++++++++++++++++++++ ext/date/tz.cpp | 3120 ++++++++++++++++++++++++++ ext/date/tz.h | 1345 ++++++++++++ ext/date/tz_private.h | 265 +++ src/tools.h | 1 + 10 files changed, 13724 insertions(+), 1 deletion(-) create mode 100644 ext/date/chrono_io.h create mode 100644 ext/date/date.h create mode 100644 ext/date/ios.h create mode 100644 ext/date/ios.mm create mode 100644 ext/date/julian.h create mode 100644 ext/date/tz.cpp create mode 100644 ext/date/tz.h create mode 100644 ext/date/tz_private.h diff --git a/ext/CMakeLists.txt b/ext/CMakeLists.txt index 1340cc1..b526fa2 100644 --- a/ext/CMakeLists.txt +++ b/ext/CMakeLists.txt @@ -12,7 +12,8 @@ set(SOURCE_HEADERS set(SOURCE_FILES format.cc - dateparser.cpp) + dateparser.cpp + date/tz.cpp) # make static library called libmyxrm # that we are going to link to diff --git a/ext/date/chrono_io.h b/ext/date/chrono_io.h new file mode 100644 index 0000000..d66a4f2 --- /dev/null +++ b/ext/date/chrono_io.h @@ -0,0 +1,668 @@ +#ifndef CHRONO_IO_H +#define CHRONO_IO_H + +// The MIT License (MIT) +// +// Copyright (c) 2016 Howard Hinnant +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +#include +#include +#include +#include +#include +#include +#include + +namespace date +{ + +namespace detail +{ + +#if __cplusplus >= 201402 + +template +class string_literal +{ + CharT p_[N]; + +public: + using const_iterator = const CharT*; + + string_literal(string_literal const&) = default; + string_literal& operator=(string_literal const&) = delete; + + template > + constexpr string_literal(CharT c) noexcept + : p_{c} + { + } + + constexpr string_literal(const CharT(&a)[N]) noexcept + : p_{} + { + for (std::size_t i = 0; i < N; ++i) + p_[i] = a[i]; + } + + template > + constexpr string_literal(const char(&a)[N]) noexcept + : p_{} + { + for (std::size_t i = 0; i < N; ++i) + p_[i] = a[i]; + } + + template {}>> + constexpr string_literal(string_literal const& a) noexcept + : p_{} + { + for (std::size_t i = 0; i < N; ++i) + p_[i] = a[i]; + } + + template > + constexpr string_literal(const string_literal& x, + const string_literal& y) noexcept + : p_{} + { + std::size_t i = 0; + for (; i < N1-1; ++i) + p_[i] = x[i]; + for (std::size_t j = 0; j < N2; ++j, ++i) + p_[i] = y[j]; + } + + constexpr const CharT* data() const noexcept {return p_;} + constexpr std::size_t size() const noexcept {return N-1;} + + constexpr const_iterator begin() const noexcept {return p_;} + constexpr const_iterator end() const noexcept {return p_ + N-1;} + + constexpr CharT const& operator[](std::size_t n) const noexcept + { + return p_[n]; + } + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const string_literal& s) + { + return os << s.p_; + } +}; + +template +constexpr +inline +string_literal, + N1 + N2 - 1> +operator+(const string_literal& x, const string_literal& y) noexcept +{ + using CharT = std::conditional_t; + return string_literal{string_literal{x}, + string_literal{y}}; +} + +template +constexpr +inline +string_literal +msl(const CharT(&a)[N]) noexcept +{ + return string_literal{a}; +} + +template {} || + std::is_same{} || + std::is_same{} || + std::is_same{}>> +constexpr +inline +string_literal +msl(CharT c) noexcept +{ + return string_literal{c}; +} + +constexpr +std::size_t +to_string_len(std::intmax_t i) +{ + std::size_t r = 0; + do + { + i /= 10; + ++r; + } while (i > 0); + return r; +} + +template +constexpr +inline +std::enable_if_t +< + N < 10, + string_literal +> +msl() noexcept +{ + return msl(char(N % 10 + '0')); +} + +template +constexpr +inline +std::enable_if_t +< + 10 <= N, + string_literal +> +msl() noexcept +{ + return msl() + msl(char(N % 10 + '0')); +} + +template +constexpr +inline +std::enable_if_t +< + std::ratio::type::den != 1, + string_literal::type::num) + + to_string_len(std::ratio::type::den) + 4> +> +msl(std::ratio) noexcept +{ + using R = typename std::ratio::type; + return msl(CharT{'['}) + msl() + msl(CharT{'/'}) + + msl() + msl(CharT{']'}); +} + +template +constexpr +inline +std::enable_if_t +< + std::ratio::type::den == 1, + string_literal::type::num) + 3> +> +msl(std::ratio) noexcept +{ + using R = typename std::ratio::type; + return msl(CharT{'['}) + msl() + msl(CharT{']'}); +} + +template +constexpr +inline +auto +msl(std::atto) noexcept +{ + return msl(CharT{'a'}); +} + +template +constexpr +inline +auto +msl(std::femto) noexcept +{ + return msl(CharT{'f'}); +} + +template +constexpr +inline +auto +msl(std::pico) noexcept +{ + return msl(CharT{'p'}); +} + +template +constexpr +inline +auto +msl(std::nano) noexcept +{ + return msl(CharT{'n'}); +} + +template +constexpr +inline +std::enable_if_t +< + std::is_same{}, + string_literal +> +msl(std::micro) noexcept +{ + return string_literal{"\xC2\xB5"}; +} + +template +constexpr +inline +std::enable_if_t +< + !std::is_same{}, + string_literal +> +msl(std::micro) noexcept +{ + return string_literal{CharT{static_cast('\xB5')}}; +} + +template +constexpr +inline +auto +msl(std::milli) noexcept +{ + return msl(CharT{'m'}); +} + +template +constexpr +inline +auto +msl(std::centi) noexcept +{ + return msl(CharT{'c'}); +} + +template +constexpr +inline +auto +msl(std::deci) noexcept +{ + return msl(CharT{'d'}); +} + +template +constexpr +inline +auto +msl(std::deca) noexcept +{ + return string_literal{"da"}; +} + +template +constexpr +inline +auto +msl(std::hecto) noexcept +{ + return msl(CharT{'h'}); +} + +template +constexpr +inline +auto +msl(std::kilo) noexcept +{ + return msl(CharT{'k'}); +} + +template +constexpr +inline +auto +msl(std::mega) noexcept +{ + return msl(CharT{'M'}); +} + +template +constexpr +inline +auto +msl(std::giga) noexcept +{ + return msl(CharT{'G'}); +} + +template +constexpr +inline +auto +msl(std::tera) noexcept +{ + return msl(CharT{'T'}); +} + +template +constexpr +inline +auto +msl(std::peta) noexcept +{ + return msl(CharT{'P'}); +} + +template +constexpr +inline +auto +msl(std::exa) noexcept +{ + return msl(CharT{'E'}); +} + +template +constexpr +auto +get_units(Period p) +{ + return msl(p) + string_literal{"s"}; +} + +template +constexpr +auto +get_units(std::ratio<1>) +{ + return string_literal{"s"}; +} + +template +constexpr +auto +get_units(std::ratio<60>) +{ + return string_literal{"min"}; +} + +template +constexpr +auto +get_units(std::ratio<3600>) +{ + return string_literal{"h"}; +} + +#else // __cplusplus < 201402 + +inline +std::string +to_string(std::uint64_t x) +{ + return std::to_string(x); +} + +template +std::basic_string +to_string(std::uint64_t x) +{ + auto y = std::to_string(x); + return std::basic_string(y.begin(), y.end()); +} + +template +constexpr +inline +typename std::enable_if +< + std::ratio::type::den != 1, + std::basic_string +>::type +msl(std::ratio) noexcept +{ + using R = typename std::ratio::type; + return std::basic_string(1, '[') + to_string(R::num) + CharT{'/'} + + to_string(R::den) + CharT{']'}; +} + +template +constexpr +inline +typename std::enable_if +< + std::ratio::type::den == 1, + std::basic_string +>::type +msl(std::ratio) noexcept +{ + using R = typename std::ratio::type; + return std::basic_string(1, '[') + to_string(R::num) + CharT{']'}; +} + +template +constexpr +inline +std::basic_string +msl(std::atto) noexcept +{ + return {'a'}; +} + +template +constexpr +inline +std::basic_string +msl(std::femto) noexcept +{ + return {'f'}; +} + +template +constexpr +inline +std::basic_string +msl(std::pico) noexcept +{ + return {'p'}; +} + +template +constexpr +inline +std::basic_string +msl(std::nano) noexcept +{ + return {'n'}; +} + +template +constexpr +inline +typename std::enable_if +< + std::is_same::value, + std::string +>::type +msl(std::micro) noexcept +{ + return "\xC2\xB5"; +} + +template +constexpr +inline +typename std::enable_if +< + !std::is_same::value, + std::basic_string +>::type +msl(std::micro) noexcept +{ + return {CharT(static_cast('\xB5'))}; +} + +template +constexpr +inline +std::basic_string +msl(std::milli) noexcept +{ + return {'m'}; +} + +template +constexpr +inline +std::basic_string +msl(std::centi) noexcept +{ + return {'c'}; +} + +template +constexpr +inline +std::basic_string +msl(std::deci) noexcept +{ + return {'d'}; +} + +template +constexpr +inline +std::basic_string +msl(std::deca) noexcept +{ + return {'d', 'a'}; +} + +template +constexpr +inline +std::basic_string +msl(std::hecto) noexcept +{ + return {'h'}; +} + +template +constexpr +inline +std::basic_string +msl(std::kilo) noexcept +{ + return {'k'}; +} + +template +constexpr +inline +std::basic_string +msl(std::mega) noexcept +{ + return {'M'}; +} + +template +constexpr +inline +std::basic_string +msl(std::giga) noexcept +{ + return {'G'}; +} + +template +constexpr +inline +std::basic_string +msl(std::tera) noexcept +{ + return {'T'}; +} + +template +constexpr +inline +std::basic_string +msl(std::peta) noexcept +{ + return {'P'}; +} + +template +constexpr +inline +std::basic_string +msl(std::exa) noexcept +{ + return {'E'}; +} + +template +std::basic_string +get_units(Period p) +{ + return msl(p) + CharT{'s'}; +} + +template +std::basic_string +get_units(std::ratio<1>) +{ + return {'s'}; +} + +template +std::basic_string +get_units(std::ratio<60>) +{ + return {'m', 'i', 'n'}; +} + +template +std::basic_string +get_units(std::ratio<3600>) +{ + return {'h'}; +} + +#endif // __cplusplus >= 201402 + +} // namespace detail + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, + const std::chrono::duration& d) +{ + using namespace std::chrono; + return os << d.count() + << detail::get_units(typename Period::type{}); +} + +} // namespace date + +#endif // CHRONO_IO_H diff --git a/ext/date/date.h b/ext/date/date.h new file mode 100644 index 0000000..5ff8f01 --- /dev/null +++ b/ext/date/date.h @@ -0,0 +1,4823 @@ +#ifndef DATE_H +#define DATE_H + +// The MIT License (MIT) +// +// Copyright (c) 2015, 2016 Howard Hinnant +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +#include +#include +#if !(__cplusplus >= 201402) +# include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace date +{ + +//---------------+ +// Configuration | +//---------------+ + +// MSVC's constexpr support is still a WIP, even in VS2015. +// Fall back to a lesser mode to support it. +// TODO: Remove this or retest later once MSVC's constexpr improves. +#if defined(_MSC_VER) && ! defined(__clang__) +// MS cl compiler. +# define CONSTDATA const +# define CONSTCD11 +# define CONSTCD14 +# define NOEXCEPT _NOEXCEPT +#elif __cplusplus >= 201402 +// C++14 +# define CONSTDATA constexpr +# define CONSTCD11 constexpr +# define CONSTCD14 constexpr +# define NOEXCEPT noexcept +#else +// C++11 +# define CONSTDATA constexpr +# define CONSTCD11 constexpr +# define CONSTCD14 +# define NOEXCEPT noexcept +#endif + +//-----------+ +// Interface | +//-----------+ + +// durations + +using days = std::chrono::duration + , std::chrono::hours::period>>; + +using weeks = std::chrono::duration + , days::period>>; + +using years = std::chrono::duration + , days::period>>; + +using months = std::chrono::duration + >>; + +// time_point + +template + using sys_time = std::chrono::time_point; + +using sys_days = sys_time; +using sys_seconds = sys_time; + +struct local_t {}; + +template + using local_time = std::chrono::time_point; + +using local_seconds = local_time; +using local_days = local_time; + +// types + +struct last_spec +{ + explicit last_spec() = default; +}; + +class day; +class month; +class year; + +class weekday; +class weekday_indexed; +class weekday_last; + +class month_day; +class month_day_last; +class month_weekday; +class month_weekday_last; + +class year_month; + +class year_month_day; +class year_month_day_last; +class year_month_weekday; +class year_month_weekday_last; + +// date composition operators + +CONSTCD11 year_month operator/(const year& y, const month& m) NOEXCEPT; +CONSTCD11 year_month operator/(const year& y, int m) NOEXCEPT; + +CONSTCD11 month_day operator/(const day& d, const month& m) NOEXCEPT; +CONSTCD11 month_day operator/(const day& d, int m) NOEXCEPT; +CONSTCD11 month_day operator/(const month& m, const day& d) NOEXCEPT; +CONSTCD11 month_day operator/(const month& m, int d) NOEXCEPT; +CONSTCD11 month_day operator/(int m, const day& d) NOEXCEPT; + +CONSTCD11 month_day_last operator/(const month& m, last_spec) NOEXCEPT; +CONSTCD11 month_day_last operator/(int m, last_spec) NOEXCEPT; +CONSTCD11 month_day_last operator/(last_spec, const month& m) NOEXCEPT; +CONSTCD11 month_day_last operator/(last_spec, int m) NOEXCEPT; + +CONSTCD11 month_weekday operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT; +CONSTCD11 month_weekday operator/(int m, const weekday_indexed& wdi) NOEXCEPT; +CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT; +CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, int m) NOEXCEPT; + +CONSTCD11 month_weekday_last operator/(const month& m, const weekday_last& wdl) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(int m, const weekday_last& wdl) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, const month& m) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, int m) NOEXCEPT; + +CONSTCD11 year_month_day operator/(const year_month& ym, const day& d) NOEXCEPT; +CONSTCD11 year_month_day operator/(const year_month& ym, int d) NOEXCEPT; +CONSTCD11 year_month_day operator/(const year& y, const month_day& md) NOEXCEPT; +CONSTCD11 year_month_day operator/(int y, const month_day& md) NOEXCEPT; +CONSTCD11 year_month_day operator/(const month_day& md, const year& y) NOEXCEPT; +CONSTCD11 year_month_day operator/(const month_day& md, int y) NOEXCEPT; + +CONSTCD11 + year_month_day_last operator/(const year_month& ym, last_spec) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const year& y, const month_day_last& mdl) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(int y, const month_day_last& mdl) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const month_day_last& mdl, const year& y) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const month_day_last& mdl, int y) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const year& y, const month_weekday& mwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(int y, const month_weekday& mwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const month_weekday& mwd, const year& y) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const month_weekday& mwd, int y) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(int y, const month_weekday_last& mwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const month_weekday_last& mwdl, int y) NOEXCEPT; + +// Detailed interface + +// day + +class day +{ + unsigned char d_; + +public: + day() = default; + explicit CONSTCD11 day(unsigned d) NOEXCEPT; + + CONSTCD14 day& operator++() NOEXCEPT; + CONSTCD14 day operator++(int) NOEXCEPT; + CONSTCD14 day& operator--() NOEXCEPT; + CONSTCD14 day operator--(int) NOEXCEPT; + + CONSTCD14 day& operator+=(const days& d) NOEXCEPT; + CONSTCD14 day& operator-=(const days& d) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator< (const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator> (const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const day& x, const day& y) NOEXCEPT; + +CONSTCD11 day operator+(const day& x, const days& y) NOEXCEPT; +CONSTCD11 day operator+(const days& x, const day& y) NOEXCEPT; +CONSTCD11 day operator-(const day& x, const days& y) NOEXCEPT; +CONSTCD11 days operator-(const day& x, const day& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const day& d); + +// month + +class month +{ + unsigned char m_; + +public: + month() = default; + explicit CONSTCD11 month(unsigned m) NOEXCEPT; + + CONSTCD14 month& operator++() NOEXCEPT; + CONSTCD14 month operator++(int) NOEXCEPT; + CONSTCD14 month& operator--() NOEXCEPT; + CONSTCD14 month operator--(int) NOEXCEPT; + + CONSTCD14 month& operator+=(const months& m) NOEXCEPT; + CONSTCD14 month& operator-=(const months& m) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator< (const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator> (const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month& x, const month& y) NOEXCEPT; + +CONSTCD14 month operator+(const month& x, const months& y) NOEXCEPT; +CONSTCD14 month operator+(const months& x, const month& y) NOEXCEPT; +CONSTCD14 month operator-(const month& x, const months& y) NOEXCEPT; +CONSTCD14 months operator-(const month& x, const month& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month& m); + +// year + +class year +{ + short y_; + +public: + year() = default; + explicit CONSTCD11 year(int y) NOEXCEPT; + + CONSTCD14 year& operator++() NOEXCEPT; + CONSTCD14 year operator++(int) NOEXCEPT; + CONSTCD14 year& operator--() NOEXCEPT; + CONSTCD14 year operator--(int) NOEXCEPT; + + CONSTCD14 year& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 year operator-() const NOEXCEPT; + CONSTCD11 year operator+() const NOEXCEPT; + + CONSTCD11 bool is_leap() const NOEXCEPT; + + CONSTCD11 explicit operator int() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + + static CONSTCD11 year min() NOEXCEPT; + static CONSTCD11 year max() NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator< (const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator> (const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year& x, const year& y) NOEXCEPT; + +CONSTCD11 year operator+(const year& x, const years& y) NOEXCEPT; +CONSTCD11 year operator+(const years& x, const year& y) NOEXCEPT; +CONSTCD11 year operator-(const year& x, const years& y) NOEXCEPT; +CONSTCD11 years operator-(const year& x, const year& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year& y); + +// weekday + +class weekday +{ + unsigned char wd_; +public: + weekday() = default; + explicit CONSTCD11 weekday(unsigned wd) NOEXCEPT; + explicit weekday(int) = delete; + CONSTCD11 weekday(const sys_days& dp) NOEXCEPT; + CONSTCD11 explicit weekday(const local_days& dp) NOEXCEPT; + + CONSTCD14 weekday& operator++() NOEXCEPT; + CONSTCD14 weekday operator++(int) NOEXCEPT; + CONSTCD14 weekday& operator--() NOEXCEPT; + CONSTCD14 weekday operator--(int) NOEXCEPT; + + CONSTCD14 weekday& operator+=(const days& d) NOEXCEPT; + CONSTCD14 weekday& operator-=(const days& d) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + + CONSTCD11 weekday_indexed operator[](unsigned index) const NOEXCEPT; + CONSTCD11 weekday_last operator[](last_spec) const NOEXCEPT; + +private: + static CONSTCD11 unsigned char weekday_from_days(int z) NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday& x, const weekday& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday& x, const weekday& y) NOEXCEPT; + +CONSTCD14 weekday operator+(const weekday& x, const days& y) NOEXCEPT; +CONSTCD14 weekday operator+(const days& x, const weekday& y) NOEXCEPT; +CONSTCD14 weekday operator-(const weekday& x, const days& y) NOEXCEPT; +CONSTCD14 days operator-(const weekday& x, const weekday& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday& wd); + +// weekday_indexed + +class weekday_indexed +{ + unsigned char wd_ : 4; + unsigned char index_ : 4; + +public: + CONSTCD11 weekday_indexed(const date::weekday& wd, unsigned index) NOEXCEPT; + + CONSTCD11 date::weekday weekday() const NOEXCEPT; + CONSTCD11 unsigned index() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_indexed& wdi); + +// weekday_last + +class weekday_last +{ + date::weekday wd_; + +public: + explicit CONSTCD11 weekday_last(const date::weekday& wd) NOEXCEPT; + + CONSTCD11 date::weekday weekday() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_last& wdl); + +// year_month + +class year_month +{ + date::year y_; + date::month m_; + +public: + year_month() = default; + CONSTCD11 year_month(const date::year& y, const date::month& m) NOEXCEPT; + + CONSTCD11 date::year year() const NOEXCEPT; + CONSTCD11 date::month month() const NOEXCEPT; + + CONSTCD14 year_month& operator+=(const months& dm) NOEXCEPT; + CONSTCD14 year_month& operator-=(const months& dm) NOEXCEPT; + CONSTCD14 year_month& operator+=(const years& dy) NOEXCEPT; + CONSTCD14 year_month& operator-=(const years& dy) NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator< (const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator> (const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year_month& x, const year_month& y) NOEXCEPT; + +CONSTCD14 year_month operator+(const year_month& ym, const months& dm) NOEXCEPT; +CONSTCD14 year_month operator+(const months& dm, const year_month& ym) NOEXCEPT; +CONSTCD14 year_month operator-(const year_month& ym, const months& dm) NOEXCEPT; + +CONSTCD11 months operator-(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 year_month operator+(const year_month& ym, const years& dy) NOEXCEPT; +CONSTCD11 year_month operator+(const years& dy, const year_month& ym) NOEXCEPT; +CONSTCD11 year_month operator-(const year_month& ym, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month& ym); + +// month_day + +class month_day +{ + date::month m_; + date::day d_; + +public: + month_day() = default; + CONSTCD11 month_day(const date::month& m, const date::day& d) NOEXCEPT; + + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::day day() const NOEXCEPT; + + CONSTCD14 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator< (const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator> (const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month_day& x, const month_day& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day& md); + +// month_day_last + +class month_day_last +{ + date::month m_; + +public: + CONSTCD11 explicit month_day_last(const date::month& m) NOEXCEPT; + + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator< (const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator> (const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day_last& mdl); + +// month_weekday + +class month_weekday +{ + date::month m_; + date::weekday_indexed wdi_; +public: + CONSTCD11 month_weekday(const date::month& m, + const date::weekday_indexed& wdi) NOEXCEPT; + + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::weekday_indexed weekday_indexed() const NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday& mwd); + +// month_weekday_last + +class month_weekday_last +{ + date::month m_; + date::weekday_last wdl_; + +public: + CONSTCD11 month_weekday_last(const date::month& m, + const date::weekday_last& wd) NOEXCEPT; + + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::weekday_last weekday_last() const NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday_last& mwdl); + +// class year_month_day + +class year_month_day +{ + date::year y_; + date::month m_; + date::day d_; + +public: + year_month_day() = default; + CONSTCD11 year_month_day(const date::year& y, const date::month& m, + const date::day& d) NOEXCEPT; + CONSTCD14 year_month_day(const year_month_day_last& ymdl) NOEXCEPT; + + CONSTCD14 year_month_day(sys_days dp) NOEXCEPT; + CONSTCD14 explicit year_month_day(local_days dp) NOEXCEPT; + + CONSTCD14 year_month_day& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_day& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 date::year year() const NOEXCEPT; + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::day day() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD14 bool ok() const NOEXCEPT; + +private: + static CONSTCD14 year_month_day from_days(days dp) NOEXCEPT; + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator< (const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator> (const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT; + +CONSTCD14 year_month_day operator+(const year_month_day& ymd, const months& dm) NOEXCEPT; +CONSTCD14 year_month_day operator+(const months& dm, const year_month_day& ymd) NOEXCEPT; +CONSTCD14 year_month_day operator-(const year_month_day& ymd, const months& dm) NOEXCEPT; +CONSTCD11 year_month_day operator+(const year_month_day& ymd, const years& dy) NOEXCEPT; +CONSTCD11 year_month_day operator+(const years& dy, const year_month_day& ymd) NOEXCEPT; +CONSTCD11 year_month_day operator-(const year_month_day& ymd, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day& ymd); + +// year_month_day_last + +class year_month_day_last +{ + date::year y_; + date::month_day_last mdl_; + +public: + CONSTCD11 year_month_day_last(const date::year& y, + const date::month_day_last& mdl) NOEXCEPT; + + CONSTCD14 year_month_day_last& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day_last& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day_last& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_day_last& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 date::year year() const NOEXCEPT; + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::month_day_last month_day_last() const NOEXCEPT; + CONSTCD14 date::day day() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator< (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator> (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day_last& ymdl); + +// year_month_weekday + +class year_month_weekday +{ + date::year y_; + date::month m_; + date::weekday_indexed wdi_; + +public: + year_month_weekday() = default; + CONSTCD11 year_month_weekday(const date::year& y, const date::month& m, + const date::weekday_indexed& wdi) NOEXCEPT; + CONSTCD14 year_month_weekday(const sys_days& dp) NOEXCEPT; + CONSTCD14 explicit year_month_weekday(const local_days& dp) NOEXCEPT; + + CONSTCD14 year_month_weekday& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_weekday& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 date::year year() const NOEXCEPT; + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::weekday weekday() const NOEXCEPT; + CONSTCD11 unsigned index() const NOEXCEPT; + CONSTCD11 date::weekday_indexed weekday_indexed() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD14 bool ok() const NOEXCEPT; + +private: + static CONSTCD14 year_month_weekday from_days(days dp) NOEXCEPT; + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday& ymwdi); + +// year_month_weekday_last + +class year_month_weekday_last +{ + date::year y_; + date::month m_; + date::weekday_last wdl_; + +public: + CONSTCD11 year_month_weekday_last(const date::year& y, const date::month& m, + const date::weekday_last& wdl) NOEXCEPT; + + CONSTCD14 year_month_weekday_last& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 date::year year() const NOEXCEPT; + CONSTCD11 date::month month() const NOEXCEPT; + CONSTCD11 date::weekday weekday() const NOEXCEPT; + CONSTCD11 date::weekday_last weekday_last() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + +private: + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 +bool +operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT; + +CONSTCD11 +bool +operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday_last& ymwdl); + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +inline namespace literals +{ + +CONSTCD11 date::day operator "" _d(unsigned long long d) NOEXCEPT; +CONSTCD11 date::year operator "" _y(unsigned long long y) NOEXCEPT; + +// CONSTDATA date::month jan{1}; +// CONSTDATA date::month feb{2}; +// CONSTDATA date::month mar{3}; +// CONSTDATA date::month apr{4}; +// CONSTDATA date::month may{5}; +// CONSTDATA date::month jun{6}; +// CONSTDATA date::month jul{7}; +// CONSTDATA date::month aug{8}; +// CONSTDATA date::month sep{9}; +// CONSTDATA date::month oct{10}; +// CONSTDATA date::month nov{11}; +// CONSTDATA date::month dec{12}; +// +// CONSTDATA date::weekday sun{0u}; +// CONSTDATA date::weekday mon{1u}; +// CONSTDATA date::weekday tue{2u}; +// CONSTDATA date::weekday wed{3u}; +// CONSTDATA date::weekday thu{4u}; +// CONSTDATA date::weekday fri{5u}; +// CONSTDATA date::weekday sat{6u}; + +} // inline namespace literals +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + +//----------------+ +// Implementation | +//----------------+ + +// utilities +namespace detail { + +template> +class save_stream +{ + std::basic_ostream& os_; + CharT fill_; + std::ios::fmtflags flags_; + std::locale loc_; + +public: + ~save_stream() + { + os_.fill(fill_); + os_.flags(flags_); + os_.imbue(loc_); + } + + save_stream(const save_stream&) = delete; + save_stream& operator=(const save_stream&) = delete; + + explicit save_stream(std::basic_ostream& os) + : os_(os) + , fill_(os.fill()) + , flags_(os.flags()) + , loc_(os.getloc()) + {} +}; + +#ifdef __GNUC__ +// GCC complains about __int128 with -pedantic or -pedantic-errors +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpedantic" +#endif + +template +struct choose_trunc_type +{ + static const int digits = std::numeric_limits::digits; + using type = typename std::conditional + < + digits < 32, + std::int32_t, + typename std::conditional + < + digits < 64, + std::int64_t, +#ifdef __SIZEOF_INT128__ + __int128 +#else + std::int64_t +#endif + >::type + >::type; +}; + +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + +template +CONSTCD11 +inline +typename std::enable_if +< + !std::chrono::treat_as_floating_point::value, + T +>::type +trunc(T t) NOEXCEPT +{ + return t; +} + +template +CONSTCD14 +inline +typename std::enable_if +< + std::chrono::treat_as_floating_point::value, + T +>::type +trunc(T t) NOEXCEPT +{ + using namespace std; + using I = typename choose_trunc_type::type; + CONSTDATA auto digits = numeric_limits::digits; + static_assert(digits < numeric_limits::digits, ""); + CONSTDATA auto max = I{1} << (digits-1); + CONSTDATA auto min = -max; + const auto negative = t < T{0}; + if (min <= t && t <= max && t != 0 && t == t) + { + t = static_cast(static_cast(t)); + if (t == 0 && negative) + t = -t; + } + return t; +} + +} // detail + +// trunc towards zero +template +CONSTCD11 +inline +To +trunc(const std::chrono::duration& d) +{ + return To{detail::trunc(std::chrono::duration_cast(d).count())}; +} + +#ifndef HAS_CHRONO_ROUNDING +# if defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 190023918 +# define HAS_CHRONO_ROUNDING 1 +# elif defined(__cpp_lib_chrono) && __cplusplus > 201402 && __cpp_lib_chrono >= 201510 +# define HAS_CHRONO_ROUNDING 1 +# elif defined(_LIBCPP_VERSION) && __cplusplus > 201402 && _LIBCPP_VERSION >= 3800 +# define HAS_CHRONO_ROUNDING 1 +# else +# define HAS_CHRONO_ROUNDING 0 +# endif +#endif // HAS_CHRONO_ROUNDING + +#if HAS_CHRONO_ROUNDING == 0 + +// round down +template +CONSTCD14 +inline +To +floor(const std::chrono::duration& d) +{ + auto t = trunc(d); + if (t > d) + return t - To{1}; + return t; +} + +// round to nearest, to even on tie +template +CONSTCD14 +inline +To +round(const std::chrono::duration& d) +{ + auto t0 = floor(d); + auto t1 = t0 + To{1}; + if (t1 == To{0} && t0 < To{0}) + t1 = -t1; + auto diff0 = d - t0; + auto diff1 = t1 - d; + if (diff0 == diff1) + { + if (t0 - trunc(t0/2)*2 == To{0}) + return t0; + return t1; + } + if (diff0 < diff1) + return t0; + return t1; +} + +// round up +template +CONSTCD14 +inline +To +ceil(const std::chrono::duration& d) +{ + auto t = trunc(d); + if (t < d) + return t + To{1}; + return t; +} + +template ::is_signed + >::type> +CONSTCD11 +std::chrono::duration +abs(std::chrono::duration d) +{ + return d >= d.zero() ? d : -d; +} + +// round down +template +CONSTCD11 +inline +std::chrono::time_point +floor(const std::chrono::time_point& tp) +{ + using std::chrono::time_point; + return time_point{floor(tp.time_since_epoch())}; +} + +// round to nearest, to even on tie +template +CONSTCD11 +inline +std::chrono::time_point +round(const std::chrono::time_point& tp) +{ + using std::chrono::time_point; + return time_point{round(tp.time_since_epoch())}; +} + +// round up +template +CONSTCD11 +inline +std::chrono::time_point +ceil(const std::chrono::time_point& tp) +{ + using std::chrono::time_point; + return time_point{ceil(tp.time_since_epoch())}; +} + +#else // HAS_CHRONO_ROUNDING == 1 + +using std::chrono::floor; +using std::chrono::ceil; +using std::chrono::round; +using std::chrono::abs; + +#endif // HAS_CHRONO_ROUNDING + +// trunc towards zero +template +CONSTCD11 +inline +std::chrono::time_point +trunc(const std::chrono::time_point& tp) +{ + using std::chrono::time_point; + return time_point{trunc(tp.time_since_epoch())}; +} + +// day + +CONSTCD11 inline day::day(unsigned d) NOEXCEPT : d_(static_cast(d)) {} +CONSTCD14 inline day& day::operator++() NOEXCEPT {++d_; return *this;} +CONSTCD14 inline day day::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline day& day::operator--() NOEXCEPT {--d_; return *this;} +CONSTCD14 inline day day::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} +CONSTCD14 inline day& day::operator+=(const days& d) NOEXCEPT {*this = *this + d; return *this;} +CONSTCD14 inline day& day::operator-=(const days& d) NOEXCEPT {*this = *this - d; return *this;} +CONSTCD11 inline day::operator unsigned() const NOEXCEPT {return d_;} +CONSTCD11 inline bool day::ok() const NOEXCEPT {return 1 <= d_ && d_ <= 31;} + +CONSTCD11 +inline +bool +operator==(const day& x, const day& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const day& x, const day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const day& x, const day& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const day& x, const day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const day& x, const day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const day& x, const day& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD11 +inline +days +operator-(const day& x, const day& y) NOEXCEPT +{ + return days{static_cast(static_cast(x) + - static_cast(y))}; +} + +CONSTCD11 +inline +day +operator+(const day& x, const days& y) NOEXCEPT +{ + return day{static_cast(x) + static_cast(y.count())}; +} + +CONSTCD11 +inline +day +operator+(const days& x, const day& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD11 +inline +day +operator-(const day& x, const days& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const day& d) +{ + detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + os.width(2); + os << static_cast(d); + return os; +} + +// month + +CONSTCD11 inline month::month(unsigned m) NOEXCEPT : m_(static_cast(m)) {} +CONSTCD14 inline month& month::operator++() NOEXCEPT {if (++m_ == 13) m_ = 1; return *this;} +CONSTCD14 inline month month::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline month& month::operator--() NOEXCEPT {if (--m_ == 0) m_ = 12; return *this;} +CONSTCD14 inline month month::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} + +CONSTCD14 +inline +month& +month::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +month& +month::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD11 inline month::operator unsigned() const NOEXCEPT {return m_;} +CONSTCD11 inline bool month::ok() const NOEXCEPT {return 1 <= m_ && m_ <= 12;} + +CONSTCD11 +inline +bool +operator==(const month& x, const month& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const month& x, const month& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month& x, const month& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const month& x, const month& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month& x, const month& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month& x, const month& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD14 +inline +months +operator-(const month& x, const month& y) NOEXCEPT +{ + auto const d = static_cast(x) - static_cast(y); + return months(d <= 11 ? d : d + 12); +} + +CONSTCD14 +inline +month +operator+(const month& x, const months& y) NOEXCEPT +{ + auto const mu = static_cast(static_cast(x)) - 1 + y.count(); + auto const yr = (mu >= 0 ? mu : mu-11) / 12; + return month{static_cast(mu - yr * 12 + 1)}; +} + +CONSTCD14 +inline +month +operator+(const months& x, const month& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD14 +inline +month +operator-(const month& x, const months& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month& m) +{ + switch (static_cast(m)) + { + case 1: + os << "Jan"; + break; + case 2: + os << "Feb"; + break; + case 3: + os << "Mar"; + break; + case 4: + os << "Apr"; + break; + case 5: + os << "May"; + break; + case 6: + os << "Jun"; + break; + case 7: + os << "Jul"; + break; + case 8: + os << "Aug"; + break; + case 9: + os << "Sep"; + break; + case 10: + os << "Oct"; + break; + case 11: + os << "Nov"; + break; + case 12: + os << "Dec"; + break; + default: + os << static_cast(m) << " is not a valid month"; + break; + } + return os; +} + +// year + +CONSTCD11 inline year::year(int y) NOEXCEPT : y_(static_cast(y)) {} +CONSTCD14 inline year& year::operator++() NOEXCEPT {++y_; return *this;} +CONSTCD14 inline year year::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline year& year::operator--() NOEXCEPT {--y_; return *this;} +CONSTCD14 inline year year::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} +CONSTCD14 inline year& year::operator+=(const years& y) NOEXCEPT {*this = *this + y; return *this;} +CONSTCD14 inline year& year::operator-=(const years& y) NOEXCEPT {*this = *this - y; return *this;} +CONSTCD11 inline year year::operator-() const NOEXCEPT {return year{-y_};} +CONSTCD11 inline year year::operator+() const NOEXCEPT {return *this;} + +CONSTCD11 +inline +bool +year::is_leap() const NOEXCEPT +{ + return y_ % 4 == 0 && (y_ % 100 != 0 || y_ % 400 == 0); +} + +CONSTCD11 inline year::operator int() const NOEXCEPT {return y_;} +CONSTCD11 inline bool year::ok() const NOEXCEPT {return true;} + +CONSTCD11 +inline +year +year::min() NOEXCEPT +{ + return year{std::numeric_limits::min()}; +} + +CONSTCD11 +inline +year +year::max() NOEXCEPT +{ + return year{std::numeric_limits::max()}; +} + +CONSTCD11 +inline +bool +operator==(const year& x, const year& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const year& x, const year& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year& x, const year& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const year& x, const year& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year& x, const year& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year& x, const year& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD11 +inline +years +operator-(const year& x, const year& y) NOEXCEPT +{ + return years{static_cast(x) - static_cast(y)}; +} + +CONSTCD11 +inline +year +operator+(const year& x, const years& y) NOEXCEPT +{ + return year{static_cast(x) + y.count()}; +} + +CONSTCD11 +inline +year +operator+(const years& x, const year& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD11 +inline +year +operator-(const year& x, const years& y) NOEXCEPT +{ + return year{static_cast(x) - y.count()}; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year& y) +{ + detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::internal); + os.width(4 + (y < year{0})); + os << static_cast(y); + return os; +} + +// weekday + +CONSTCD11 +inline +unsigned char +weekday::weekday_from_days(int z) NOEXCEPT +{ + return static_cast(static_cast( + z >= -4 ? (z+4) % 7 : (z+5) % 7 + 6)); +} + +CONSTCD11 +inline +weekday::weekday(unsigned wd) NOEXCEPT + : wd_(static_cast(wd)) + {} + +CONSTCD11 +inline +weekday::weekday(const sys_days& dp) NOEXCEPT + : wd_(weekday_from_days(dp.time_since_epoch().count())) + {} + +CONSTCD11 +inline +weekday::weekday(const local_days& dp) NOEXCEPT + : wd_(weekday_from_days(dp.time_since_epoch().count())) + {} + +CONSTCD14 inline weekday& weekday::operator++() NOEXCEPT {if (++wd_ == 7) wd_ = 0; return *this;} +CONSTCD14 inline weekday weekday::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline weekday& weekday::operator--() NOEXCEPT {if (wd_-- == 0) wd_ = 6; return *this;} +CONSTCD14 inline weekday weekday::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} + +CONSTCD14 +inline +weekday& +weekday::operator+=(const days& d) NOEXCEPT +{ + *this = *this + d; + return *this; +} + +CONSTCD14 +inline +weekday& +weekday::operator-=(const days& d) NOEXCEPT +{ + *this = *this - d; + return *this; +} + +CONSTCD11 +inline +weekday::operator unsigned() const NOEXCEPT +{ + return static_cast(wd_); +} + +CONSTCD11 inline bool weekday::ok() const NOEXCEPT {return wd_ <= 6;} + +CONSTCD11 +inline +bool +operator==(const weekday& x, const weekday& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const weekday& x, const weekday& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD14 +inline +days +operator-(const weekday& x, const weekday& y) NOEXCEPT +{ + auto const diff = static_cast(x) - static_cast(y); + return days{diff <= 6 ? diff : diff + 7}; +} + +CONSTCD14 +inline +weekday +operator+(const weekday& x, const days& y) NOEXCEPT +{ + auto const wdu = static_cast(static_cast(x)) + y.count(); + auto const wk = (wdu >= 0 ? wdu : wdu-6) / 7; + return weekday{static_cast(wdu - wk * 7)}; +} + +CONSTCD14 +inline +weekday +operator+(const days& x, const weekday& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD14 +inline +weekday +operator-(const weekday& x, const days& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday& wd) +{ + switch (static_cast(wd)) + { + case 0: + os << "Sun"; + break; + case 1: + os << "Mon"; + break; + case 2: + os << "Tue"; + break; + case 3: + os << "Wed"; + break; + case 4: + os << "Thu"; + break; + case 5: + os << "Fri"; + break; + case 6: + os << "Sat"; + break; + default: + os << static_cast(wd) << " is not a valid weekday"; + break; + } + return os; +} + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +inline namespace literals +{ + +CONSTCD11 +inline +date::day +operator "" _d(unsigned long long d) NOEXCEPT +{ + return date::day{static_cast(d)}; +} + +CONSTCD11 +inline +date::year +operator "" _y(unsigned long long y) NOEXCEPT +{ + return date::year(static_cast(y)); +} +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + +CONSTDATA date::last_spec last{}; + +CONSTDATA date::month jan{1}; +CONSTDATA date::month feb{2}; +CONSTDATA date::month mar{3}; +CONSTDATA date::month apr{4}; +CONSTDATA date::month may{5}; +CONSTDATA date::month jun{6}; +CONSTDATA date::month jul{7}; +CONSTDATA date::month aug{8}; +CONSTDATA date::month sep{9}; +CONSTDATA date::month oct{10}; +CONSTDATA date::month nov{11}; +CONSTDATA date::month dec{12}; + +CONSTDATA date::weekday sun{0u}; +CONSTDATA date::weekday mon{1u}; +CONSTDATA date::weekday tue{2u}; +CONSTDATA date::weekday wed{3u}; +CONSTDATA date::weekday thu{4u}; +CONSTDATA date::weekday fri{5u}; +CONSTDATA date::weekday sat{6u}; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +} // inline namespace literals +#endif + +// weekday_indexed + +CONSTCD11 +inline +weekday +weekday_indexed::weekday() const NOEXCEPT +{ + return date::weekday{static_cast(wd_)}; +} + +CONSTCD11 inline unsigned weekday_indexed::index() const NOEXCEPT {return index_;} + +CONSTCD11 +inline +bool +weekday_indexed::ok() const NOEXCEPT +{ + return weekday().ok() && 1 <= index_ && index_ <= 5; +} + +CONSTCD11 +inline +weekday_indexed::weekday_indexed(const date::weekday& wd, unsigned index) NOEXCEPT + : wd_(static_cast(static_cast(wd))) + , index_(static_cast(index)) + {} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_indexed& wdi) +{ + return os << wdi.weekday() << '[' << wdi.index() << ']'; +} + +CONSTCD11 +inline +weekday_indexed +weekday::operator[](unsigned index) const NOEXCEPT +{ + return {*this, index}; +} + +CONSTCD11 +inline +bool +operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT +{ + return x.weekday() == y.weekday() && x.index() == y.index(); +} + +CONSTCD11 +inline +bool +operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT +{ + return !(x == y); +} + +// weekday_last + +CONSTCD11 inline date::weekday weekday_last::weekday() const NOEXCEPT {return wd_;} +CONSTCD11 inline bool weekday_last::ok() const NOEXCEPT {return wd_.ok();} +CONSTCD11 inline weekday_last::weekday_last(const date::weekday& wd) NOEXCEPT : wd_(wd) {} + +CONSTCD11 +inline +bool +operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT +{ + return x.weekday() == y.weekday(); +} + +CONSTCD11 +inline +bool +operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_last& wdl) +{ + return os << wdl.weekday() << "[last]"; +} + +CONSTCD11 +inline +weekday_last +weekday::operator[](last_spec) const NOEXCEPT +{ + return weekday_last{*this}; +} + +// year_month + +CONSTCD11 +inline +year_month::year_month(const date::year& y, const date::month& m) NOEXCEPT + : y_(y) + , m_(m) + {} + +CONSTCD11 inline year year_month::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month::month() const NOEXCEPT {return m_;} +CONSTCD11 inline bool year_month::ok() const NOEXCEPT {return y_.ok() && m_.ok();} + +CONSTCD14 +inline +year_month& +year_month::operator+=(const months& dm) NOEXCEPT +{ + *this = *this + dm; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator-=(const months& dm) NOEXCEPT +{ + *this = *this - dm; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator+=(const years& dy) NOEXCEPT +{ + *this = *this + dy; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator-=(const years& dy) NOEXCEPT +{ + *this = *this - dy; + return *this; +} + +CONSTCD11 +inline +bool +operator==(const year_month& x, const year_month& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month& x, const year_month& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month() < y.month())); +} + +CONSTCD11 +inline +bool +operator>(const year_month& x, const year_month& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD14 +inline +year_month +operator+(const year_month& ym, const months& dm) NOEXCEPT +{ + auto dmi = static_cast(static_cast(ym.month())) - 1 + dm.count(); + auto dy = (dmi >= 0 ? dmi : dmi-11) / 12; + dmi = dmi - dy * 12 + 1; + return (ym.year() + years(dy)) / month(static_cast(dmi)); +} + +CONSTCD14 +inline +year_month +operator+(const months& dm, const year_month& ym) NOEXCEPT +{ + return ym + dm; +} + +CONSTCD14 +inline +year_month +operator-(const year_month& ym, const months& dm) NOEXCEPT +{ + return ym + -dm; +} + +CONSTCD11 +inline +months +operator-(const year_month& x, const year_month& y) NOEXCEPT +{ + return (x.year() - y.year()) + + months(static_cast(x.month()) - static_cast(y.month())); +} + +CONSTCD11 +inline +year_month +operator+(const year_month& ym, const years& dy) NOEXCEPT +{ + return (ym.year() + dy) / ym.month(); +} + +CONSTCD11 +inline +year_month +operator+(const years& dy, const year_month& ym) NOEXCEPT +{ + return ym + dy; +} + +CONSTCD11 +inline +year_month +operator-(const year_month& ym, const years& dy) NOEXCEPT +{ + return ym + -dy; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month& ym) +{ + return os << ym.year() << '/' << ym.month(); +} + +// month_day + +CONSTCD11 +inline +month_day::month_day(const date::month& m, const date::day& d) NOEXCEPT + : m_(m) + , d_(d) + {} + +CONSTCD11 inline date::month month_day::month() const NOEXCEPT {return m_;} +CONSTCD11 inline date::day month_day::day() const NOEXCEPT {return d_;} + +CONSTCD14 +inline +bool +month_day::ok() const NOEXCEPT +{ + CONSTDATA date::day d[] = + { + date::day(31), date::day(29), date::day(31), + date::day(30), date::day(31), date::day(30), + date::day(31), date::day(31), date::day(30), + date::day(31), date::day(30), date::day(31) + }; + return m_.ok() && date::day{1} <= d_ && d_ <= d[static_cast(m_)-1]; +} + +CONSTCD11 +inline +bool +operator==(const month_day& x, const month_day& y) NOEXCEPT +{ + return x.month() == y.month() && x.day() == y.day(); +} + +CONSTCD11 +inline +bool +operator!=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month_day& x, const month_day& y) NOEXCEPT +{ + return x.month() < y.month() ? true + : (x.month() > y.month() ? false + : (x.day() < y.day())); +} + +CONSTCD11 +inline +bool +operator>(const month_day& x, const month_day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day& md) +{ + return os << md.month() << '/' << md.day(); +} + +// month_day_last + +CONSTCD11 inline month month_day_last::month() const NOEXCEPT {return m_;} +CONSTCD11 inline bool month_day_last::ok() const NOEXCEPT {return m_.ok();} +CONSTCD11 inline month_day_last::month_day_last(const date::month& m) NOEXCEPT : m_(m) {} + +CONSTCD11 +inline +bool +operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return x.month() == y.month(); +} + +CONSTCD11 +inline +bool +operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return x.month() < y.month(); +} + +CONSTCD11 +inline +bool +operator>(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day_last& mdl) +{ + return os << mdl.month() << "/last"; +} + +// month_weekday + +CONSTCD11 +inline +month_weekday::month_weekday(const date::month& m, + const date::weekday_indexed& wdi) NOEXCEPT + : m_(m) + , wdi_(wdi) + {} + +CONSTCD11 inline month month_weekday::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday_indexed +month_weekday::weekday_indexed() const NOEXCEPT +{ + return wdi_; +} + +CONSTCD11 +inline +bool +month_weekday::ok() const NOEXCEPT +{ + return m_.ok() && wdi_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT +{ + return x.month() == y.month() && x.weekday_indexed() == y.weekday_indexed(); +} + +CONSTCD11 +inline +bool +operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday& mwd) +{ + return os << mwd.month() << '/' << mwd.weekday_indexed(); +} + +// month_weekday_last + +CONSTCD11 +inline +month_weekday_last::month_weekday_last(const date::month& m, + const date::weekday_last& wdl) NOEXCEPT + : m_(m) + , wdl_(wdl) + {} + +CONSTCD11 inline month month_weekday_last::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday_last +month_weekday_last::weekday_last() const NOEXCEPT +{ + return wdl_; +} + +CONSTCD11 +inline +bool +month_weekday_last::ok() const NOEXCEPT +{ + return m_.ok() && wdl_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT +{ + return x.month() == y.month() && x.weekday_last() == y.weekday_last(); +} + +CONSTCD11 +inline +bool +operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday_last& mwdl) +{ + return os << mwdl.month() << '/' << mwdl.weekday_last(); +} + +// year_month_day_last + +CONSTCD11 +inline +year_month_day_last::year_month_day_last(const date::year& y, + const date::month_day_last& mdl) NOEXCEPT + : y_(y) + , mdl_(mdl) + {} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_day_last::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_day_last::month() const NOEXCEPT {return mdl_.month();} + +CONSTCD11 +inline +month_day_last +year_month_day_last::month_day_last() const NOEXCEPT +{ + return mdl_; +} + +CONSTCD14 +inline +day +year_month_day_last::day() const NOEXCEPT +{ + CONSTDATA date::day d[] = + { + date::day(31), date::day(28), date::day(31), + date::day(30), date::day(31), date::day(30), + date::day(31), date::day(31), date::day(30), + date::day(31), date::day(30), date::day(31) + }; + return month() != feb || !y_.is_leap() ? + d[static_cast(month()) - 1] : date::day{29}; +} + +CONSTCD14 +inline +year_month_day_last::operator sys_days() const NOEXCEPT +{ + return sys_days(year()/month()/day()); +} + +CONSTCD14 +inline +year_month_day_last::operator local_days() const NOEXCEPT +{ + return local_days(year()/month()/day()); +} + +CONSTCD11 +inline +bool +year_month_day_last::ok() const NOEXCEPT +{ + return y_.ok() && mdl_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return x.year() == y.year() && x.month_day_last() == y.month_day_last(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month_day_last() < y.month_day_last())); +} + +CONSTCD11 +inline +bool +operator>(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day_last& ymdl) +{ + return os << ymdl.year() << '/' << ymdl.month_day_last(); +} + +CONSTCD14 +inline +year_month_day_last +operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT +{ + return (ymdl.year() / ymdl.month() + dm) / last; +} + +CONSTCD14 +inline +year_month_day_last +operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT +{ + return ymdl + dm; +} + +CONSTCD14 +inline +year_month_day_last +operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT +{ + return ymdl + (-dm); +} + +CONSTCD11 +inline +year_month_day_last +operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT +{ + return {ymdl.year()+dy, ymdl.month_day_last()}; +} + +CONSTCD11 +inline +year_month_day_last +operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT +{ + return ymdl + dy; +} + +CONSTCD11 +inline +year_month_day_last +operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT +{ + return ymdl + (-dy); +} + +// year_month_day + +CONSTCD11 +inline +year_month_day::year_month_day(const date::year& y, const date::month& m, + const date::day& d) NOEXCEPT + : y_(y) + , m_(m) + , d_(d) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(const year_month_day_last& ymdl) NOEXCEPT + : y_(ymdl.year()) + , m_(ymdl.month()) + , d_(ymdl.day()) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(sys_days dp) NOEXCEPT + : year_month_day(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(local_days dp) NOEXCEPT + : year_month_day(from_days(dp.time_since_epoch())) + {} + +CONSTCD11 inline year year_month_day::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_day::month() const NOEXCEPT {return m_;} +CONSTCD11 inline day year_month_day::day() const NOEXCEPT {return d_;} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD14 +inline +days +year_month_day::to_days() const NOEXCEPT +{ + static_assert(std::numeric_limits::digits >= 18, + "This algorithm has not been ported to a 16 bit unsigned integer"); + static_assert(std::numeric_limits::digits >= 20, + "This algorithm has not been ported to a 16 bit signed integer"); + auto const y = static_cast(y_) - (m_ <= feb); + auto const m = static_cast(m_); + auto const d = static_cast(d_); + auto const era = (y >= 0 ? y : y-399) / 400; + auto const yoe = static_cast(y - era * 400); // [0, 399] + auto const doy = (153*(m > 2 ? m-3 : m+9) + 2)/5 + d-1; // [0, 365] + auto const doe = yoe * 365 + yoe/4 - yoe/100 + doy; // [0, 146096] + return days{era * 146097 + static_cast(doe) - 719468}; +} + +CONSTCD14 +inline +year_month_day::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_day::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD14 +inline +bool +year_month_day::ok() const NOEXCEPT +{ + if (!(y_.ok() && m_.ok())) + return false; + return date::day{1} <= d_ && d_ <= (y_ / m_ / last).day(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && x.day() == y.day(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month() < y.month() ? true + : (x.month() > y.month() ? false + : (x.day() < y.day())))); +} + +CONSTCD11 +inline +bool +operator>(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day& ymd) +{ + detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + os << ymd.year() << '-'; + os.width(2); + os << static_cast(ymd.month()) << '-'; + os << ymd.day(); + return os; +} + +CONSTCD14 +inline +year_month_day +year_month_day::from_days(days dp) NOEXCEPT +{ + static_assert(std::numeric_limits::digits >= 18, + "This algorithm has not been ported to a 16 bit unsigned integer"); + static_assert(std::numeric_limits::digits >= 20, + "This algorithm has not been ported to a 16 bit signed integer"); + auto const z = dp.count() + 719468; + auto const era = (z >= 0 ? z : z - 146096) / 146097; + auto const doe = static_cast(z - era * 146097); // [0, 146096] + auto const yoe = (doe - doe/1460 + doe/36524 - doe/146096) / 365; // [0, 399] + auto const y = static_cast(yoe) + era * 400; + auto const doy = doe - (365*yoe + yoe/4 - yoe/100); // [0, 365] + auto const mp = (5*doy + 2)/153; // [0, 11] + auto const d = doy - (153*mp+2)/5 + 1; // [1, 31] + auto const m = mp < 10 ? mp+3 : mp-9; // [1, 12] + return year_month_day{date::year{y + (m <= 2)}, date::month(m), date::day(d)}; +} + +CONSTCD14 +inline +year_month_day +operator+(const year_month_day& ymd, const months& dm) NOEXCEPT +{ + return (ymd.year() / ymd.month() + dm) / ymd.day(); +} + +CONSTCD14 +inline +year_month_day +operator+(const months& dm, const year_month_day& ymd) NOEXCEPT +{ + return ymd + dm; +} + +CONSTCD14 +inline +year_month_day +operator-(const year_month_day& ymd, const months& dm) NOEXCEPT +{ + return ymd + (-dm); +} + +CONSTCD11 +inline +year_month_day +operator+(const year_month_day& ymd, const years& dy) NOEXCEPT +{ + return (ymd.year() + dy) / ymd.month() / ymd.day(); +} + +CONSTCD11 +inline +year_month_day +operator+(const years& dy, const year_month_day& ymd) NOEXCEPT +{ + return ymd + dy; +} + +CONSTCD11 +inline +year_month_day +operator-(const year_month_day& ymd, const years& dy) NOEXCEPT +{ + return ymd + (-dy); +} + +// year_month_weekday + +CONSTCD11 +inline +year_month_weekday::year_month_weekday(const date::year& y, const date::month& m, + const date::weekday_indexed& wdi) + NOEXCEPT + : y_(y) + , m_(m) + , wdi_(wdi) + {} + +CONSTCD14 +inline +year_month_weekday::year_month_weekday(const sys_days& dp) NOEXCEPT + : year_month_weekday(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_weekday::year_month_weekday(const local_days& dp) NOEXCEPT + : year_month_weekday(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_weekday::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_weekday::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday +year_month_weekday::weekday() const NOEXCEPT +{ + return wdi_.weekday(); +} + +CONSTCD11 +inline +unsigned +year_month_weekday::index() const NOEXCEPT +{ + return wdi_.index(); +} + +CONSTCD11 +inline +weekday_indexed +year_month_weekday::weekday_indexed() const NOEXCEPT +{ + return wdi_; +} + +CONSTCD14 +inline +year_month_weekday::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_weekday::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD14 +inline +bool +year_month_weekday::ok() const NOEXCEPT +{ + if (!y_.ok() || !m_.ok() || !wdi_.weekday().ok() || wdi_.index() < 1) + return false; + if (wdi_.index() <= 4) + return true; + auto d2 = wdi_.weekday() - date::weekday(static_cast(y_/m_/1)) + days((wdi_.index()-1)*7 + 1); + return static_cast(d2.count()) <= static_cast((y_/m_/last).day()); +} + +CONSTCD14 +inline +year_month_weekday +year_month_weekday::from_days(days d) NOEXCEPT +{ + sys_days dp{d}; + auto const wd = date::weekday(dp); + auto const ymd = year_month_day(dp); + return {ymd.year(), ymd.month(), wd[(static_cast(ymd.day())-1)/7+1]}; +} + +CONSTCD14 +inline +days +year_month_weekday::to_days() const NOEXCEPT +{ + auto d = sys_days(y_/m_/1); + return (d + (wdi_.weekday() - date::weekday(d) + days{(wdi_.index()-1)*7}) + ).time_since_epoch(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && + x.weekday_indexed() == y.weekday_indexed(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday& ymwdi) +{ + return os << ymwdi.year() << '/' << ymwdi.month() + << '/' << ymwdi.weekday_indexed(); +} + +CONSTCD14 +inline +year_month_weekday +operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT +{ + return (ymwd.year() / ymwd.month() + dm) / ymwd.weekday_indexed(); +} + +CONSTCD14 +inline +year_month_weekday +operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT +{ + return ymwd + dm; +} + +CONSTCD14 +inline +year_month_weekday +operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT +{ + return ymwd + (-dm); +} + +CONSTCD11 +inline +year_month_weekday +operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT +{ + return {ymwd.year()+dy, ymwd.month(), ymwd.weekday_indexed()}; +} + +CONSTCD11 +inline +year_month_weekday +operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT +{ + return ymwd + dy; +} + +CONSTCD11 +inline +year_month_weekday +operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT +{ + return ymwd + (-dy); +} + +// year_month_weekday_last + +CONSTCD11 +inline +year_month_weekday_last::year_month_weekday_last(const date::year& y, + const date::month& m, + const date::weekday_last& wdl) NOEXCEPT + : y_(y) + , m_(m) + , wdl_(wdl) + {} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_weekday_last::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_weekday_last::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday +year_month_weekday_last::weekday() const NOEXCEPT +{ + return wdl_.weekday(); +} + +CONSTCD11 +inline +weekday_last +year_month_weekday_last::weekday_last() const NOEXCEPT +{ + return wdl_; +} + +CONSTCD14 +inline +year_month_weekday_last::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_weekday_last::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD11 +inline +bool +year_month_weekday_last::ok() const NOEXCEPT +{ + return y_.ok() && m_.ok() && wdl_.ok(); +} + +CONSTCD14 +inline +days +year_month_weekday_last::to_days() const NOEXCEPT +{ + auto const d = sys_days(y_/m_/last); + return (d - (date::weekday{d} - wdl_.weekday())).time_since_epoch(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && + x.weekday_last() == y.weekday_last(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday_last& ymwdl) +{ + return os << ymwdl.year() << '/' << ymwdl.month() << '/' << ymwdl.weekday_last(); +} + +CONSTCD14 +inline +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT +{ + return (ymwdl.year() / ymwdl.month() + dm) / ymwdl.weekday_last(); +} + +CONSTCD14 +inline +year_month_weekday_last +operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT +{ + return ymwdl + dm; +} + +CONSTCD14 +inline +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT +{ + return ymwdl + (-dm); +} + +CONSTCD11 +inline +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT +{ + return {ymwdl.year()+dy, ymwdl.month(), ymwdl.weekday_last()}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT +{ + return ymwdl + dy; +} + +CONSTCD11 +inline +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT +{ + return ymwdl + (-dy); +} + +// year_month from operator/() + +CONSTCD11 +inline +year_month +operator/(const year& y, const month& m) NOEXCEPT +{ + return {y, m}; +} + +CONSTCD11 +inline +year_month +operator/(const year& y, int m) NOEXCEPT +{ + return y / month(static_cast(m)); +} + +// month_day from operator/() + +CONSTCD11 +inline +month_day +operator/(const month& m, const day& d) NOEXCEPT +{ + return {m, d}; +} + +CONSTCD11 +inline +month_day +operator/(const day& d, const month& m) NOEXCEPT +{ + return m / d; +} + +CONSTCD11 +inline +month_day +operator/(const month& m, int d) NOEXCEPT +{ + return m / day(static_cast(d)); +} + +CONSTCD11 +inline +month_day +operator/(int m, const day& d) NOEXCEPT +{ + return month(static_cast(m)) / d; +} + +CONSTCD11 inline month_day operator/(const day& d, int m) NOEXCEPT {return m / d;} + +// month_day_last from operator/() + +CONSTCD11 +inline +month_day_last +operator/(const month& m, last_spec) NOEXCEPT +{ + return month_day_last{m}; +} + +CONSTCD11 +inline +month_day_last +operator/(last_spec, const month& m) NOEXCEPT +{ + return m/last; +} + +CONSTCD11 +inline +month_day_last +operator/(int m, last_spec) NOEXCEPT +{ + return month(static_cast(m))/last; +} + +CONSTCD11 +inline +month_day_last +operator/(last_spec, int m) NOEXCEPT +{ + return m/last; +} + +// month_weekday from operator/() + +CONSTCD11 +inline +month_weekday +operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT +{ + return {m, wdi}; +} + +CONSTCD11 +inline +month_weekday +operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT +{ + return m / wdi; +} + +CONSTCD11 +inline +month_weekday +operator/(int m, const weekday_indexed& wdi) NOEXCEPT +{ + return month(static_cast(m)) / wdi; +} + +CONSTCD11 +inline +month_weekday +operator/(const weekday_indexed& wdi, int m) NOEXCEPT +{ + return m / wdi; +} + +// month_weekday_last from operator/() + +CONSTCD11 +inline +month_weekday_last +operator/(const month& m, const weekday_last& wdl) NOEXCEPT +{ + return {m, wdl}; +} + +CONSTCD11 +inline +month_weekday_last +operator/(const weekday_last& wdl, const month& m) NOEXCEPT +{ + return m / wdl; +} + +CONSTCD11 +inline +month_weekday_last +operator/(int m, const weekday_last& wdl) NOEXCEPT +{ + return month(static_cast(m)) / wdl; +} + +CONSTCD11 +inline +month_weekday_last +operator/(const weekday_last& wdl, int m) NOEXCEPT +{ + return m / wdl; +} + +// year_month_day from operator/() + +CONSTCD11 +inline +year_month_day +operator/(const year_month& ym, const day& d) NOEXCEPT +{ + return {ym.year(), ym.month(), d}; +} + +CONSTCD11 +inline +year_month_day +operator/(const year_month& ym, int d) NOEXCEPT +{ + return ym / day(static_cast(d)); +} + +CONSTCD11 +inline +year_month_day +operator/(const year& y, const month_day& md) NOEXCEPT +{ + return y / md.month() / md.day(); +} + +CONSTCD11 +inline +year_month_day +operator/(int y, const month_day& md) NOEXCEPT +{ + return year(y) / md; +} + +CONSTCD11 +inline +year_month_day +operator/(const month_day& md, const year& y) NOEXCEPT +{ + return y / md; +} + +CONSTCD11 +inline +year_month_day +operator/(const month_day& md, int y) NOEXCEPT +{ + return year(y) / md; +} + +// year_month_day_last from operator/() + +CONSTCD11 +inline +year_month_day_last +operator/(const year_month& ym, last_spec) NOEXCEPT +{ + return {ym.year(), month_day_last{ym.month()}}; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const year& y, const month_day_last& mdl) NOEXCEPT +{ + return {y, mdl}; +} + +CONSTCD11 +inline +year_month_day_last +operator/(int y, const month_day_last& mdl) NOEXCEPT +{ + return year(y) / mdl; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const month_day_last& mdl, const year& y) NOEXCEPT +{ + return y / mdl; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const month_day_last& mdl, int y) NOEXCEPT +{ + return year(y) / mdl; +} + +// year_month_weekday from operator/() + +CONSTCD11 +inline +year_month_weekday +operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT +{ + return {ym.year(), ym.month(), wdi}; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const year& y, const month_weekday& mwd) NOEXCEPT +{ + return {y, mwd.month(), mwd.weekday_indexed()}; +} + +CONSTCD11 +inline +year_month_weekday +operator/(int y, const month_weekday& mwd) NOEXCEPT +{ + return year(y) / mwd; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const month_weekday& mwd, const year& y) NOEXCEPT +{ + return y / mwd; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const month_weekday& mwd, int y) NOEXCEPT +{ + return year(y) / mwd; +} + +// year_month_weekday_last from operator/() + +CONSTCD11 +inline +year_month_weekday_last +operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT +{ + return {ym.year(), ym.month(), wdl}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT +{ + return {y, mwdl.month(), mwdl.weekday_last()}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(int y, const month_weekday_last& mwdl) NOEXCEPT +{ + return year(y) / mwdl; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT +{ + return y / mwdl; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const month_weekday_last& mwdl, int y) NOEXCEPT +{ + return year(y) / mwdl; +} + +// time_of_day + +enum {am = 1, pm}; + +namespace detail +{ + +enum class classify +{ + not_valid, + hour, + minute, + second, + subsecond +}; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + +template +struct classify_duration +{ + static CONSTDATA classify value = + Duration{1} >= days{1} ? classify::not_valid : + Duration{1} >= std::chrono::hours{1} ? classify::hour : + Duration{1} >= std::chrono::minutes{1} ? classify::minute : + Duration{1} >= std::chrono::seconds{1} ? classify::second : + classify::subsecond; +}; + +#else + +template +struct classify_duration +{ + static CONSTDATA classify value = + std::ratio_greater_equal< + typename Duration::period, + days::period >::value + ? classify::not_valid : + std::ratio_greater_equal< + typename Duration::period, + std::chrono::hours::period>::value + ? classify::hour : + std::ratio_greater_equal< + typename Duration::period, + std::chrono::minutes::period>::value + ? classify::minute : + std::ratio_greater_equal< + typename Duration::period, + std::chrono::seconds::period>::value + ? classify::second : + classify::subsecond; +}; + +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + +class time_of_day_base +{ +protected: + std::chrono::hours h_; + unsigned char mode_; + + enum {is24hr}; + + CONSTCD11 time_of_day_base(std::chrono::hours h, unsigned m) NOEXCEPT + : h_(h) + , mode_(static_cast(m)) + {} + + CONSTCD14 void make24() NOEXCEPT; + CONSTCD14 void make12() NOEXCEPT; + + CONSTCD14 std::chrono::hours to24hr() const; +}; + +CONSTCD14 +inline +std::chrono::hours +time_of_day_base::to24hr() const +{ + auto h = h_; + if (mode_ == am || mode_ == pm) + { + CONSTDATA auto h12 = std::chrono::hours(12); + if (mode_ == pm) + { + if (h != h12) + h = h + h12; + } + else if (h == h12) + h = std::chrono::hours(0); + } + return h; +} + +CONSTCD14 +inline +void +time_of_day_base::make24() NOEXCEPT +{ + h_ = to24hr(); + mode_ = is24hr; +} + +CONSTCD14 +inline +void +time_of_day_base::make12() NOEXCEPT +{ + if (mode_ == is24hr) + { + CONSTDATA auto h12 = std::chrono::hours(12); + if (h_ >= h12) + { + if (h_ > h12) + h_ = h_ - h12; + mode_ = pm; + } + else + { + if (h_ == std::chrono::hours(0)) + h_ = h12; + mode_ = am; + } + } +} + +template ::value> +class time_of_day_storage; + +template +class time_of_day_storage, detail::classify::hour> + : private detail::time_of_day_base +{ + using base = detail::time_of_day_base; + +public: + using precision = std::chrono::hours; + + CONSTCD11 explicit time_of_day_storage(std::chrono::hours since_midnight) NOEXCEPT + : base(since_midnight, is24hr) + {} + + CONSTCD11 explicit time_of_day_storage(std::chrono::hours h, unsigned md) NOEXCEPT + : base(h, md) + {} + + CONSTCD11 std::chrono::hours hours() const NOEXCEPT {return h_;} + CONSTCD11 unsigned mode() const NOEXCEPT {return mode_;} + + CONSTCD14 explicit operator precision() const NOEXCEPT + { + return to24hr(); + } + + CONSTCD14 precision to_duration() const NOEXCEPT + { + return static_cast(*this); + } + + CONSTCD14 time_of_day_storage& make24() NOEXCEPT {base::make24(); return *this;} + CONSTCD14 time_of_day_storage& make12() NOEXCEPT {base::make12(); return *this;} + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const time_of_day_storage& t) + { + using namespace std; + detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + if (t.mode_ != am && t.mode_ != pm) + os.width(2); + os << t.h_.count(); + switch (t.mode_) + { + case time_of_day_storage::is24hr: + os << "00"; + break; + case am: + os << "am"; + break; + case pm: + os << "pm"; + break; + } + return os; + } +}; + +template +class time_of_day_storage, detail::classify::minute> + : private detail::time_of_day_base +{ + using base = detail::time_of_day_base; + + std::chrono::minutes m_; + +public: + using precision = std::chrono::minutes; + + CONSTCD11 explicit time_of_day_storage(std::chrono::minutes since_midnight) NOEXCEPT + : base(std::chrono::duration_cast(since_midnight), is24hr) + , m_(since_midnight - h_) + {} + + CONSTCD11 explicit time_of_day_storage(std::chrono::hours h, std::chrono::minutes m, + unsigned md) NOEXCEPT + : base(h, md) + , m_(m) + {} + + CONSTCD11 std::chrono::hours hours() const NOEXCEPT {return h_;} + CONSTCD11 std::chrono::minutes minutes() const NOEXCEPT {return m_;} + CONSTCD11 unsigned mode() const NOEXCEPT {return mode_;} + + CONSTCD14 explicit operator precision() const NOEXCEPT + { + return to24hr() + m_; + } + + CONSTCD14 precision to_duration() const NOEXCEPT + { + return static_cast(*this); + } + + CONSTCD14 time_of_day_storage& make24() NOEXCEPT {base::make24(); return *this;} + CONSTCD14 time_of_day_storage& make12() NOEXCEPT {base::make12(); return *this;} + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const time_of_day_storage& t) + { + using namespace std; + detail::save_stream _(os); + if (static_cast(t) < std::chrono::hours{0}) + os << '-'; + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + if (t.mode_ != am && t.mode_ != pm) + os.width(2); + os << std::abs(t.h_.count()) << ':'; + os.width(2); + os << std::abs(t.m_.count()); + switch (t.mode_) + { + case am: + os << "am"; + break; + case pm: + os << "pm"; + break; + } + return os; + } +}; + +template +class time_of_day_storage, detail::classify::second> + : private detail::time_of_day_base +{ + using base = detail::time_of_day_base; + + std::chrono::minutes m_; + std::chrono::seconds s_; + +public: + using precision = std::chrono::seconds; + + CONSTCD11 explicit time_of_day_storage(std::chrono::seconds since_midnight) NOEXCEPT + : base(std::chrono::duration_cast(since_midnight), is24hr) + , m_(std::chrono::duration_cast(since_midnight - h_)) + , s_(since_midnight - h_ - m_) + {} + + CONSTCD11 explicit time_of_day_storage(std::chrono::hours h, std::chrono::minutes m, + std::chrono::seconds s, unsigned md) NOEXCEPT + : base(h, md) + , m_(m) + , s_(s) + {} + + CONSTCD11 std::chrono::hours hours() const NOEXCEPT {return h_;} + CONSTCD11 std::chrono::minutes minutes() const NOEXCEPT {return m_;} + CONSTCD14 std::chrono::seconds& seconds() NOEXCEPT {return s_;} + CONSTCD11 std::chrono::seconds seconds() const NOEXCEPT {return s_;} + CONSTCD11 unsigned mode() const NOEXCEPT {return mode_;} + + CONSTCD14 explicit operator precision() const NOEXCEPT + { + return to24hr() + s_ + m_; + } + + CONSTCD14 precision to_duration() const NOEXCEPT + { + return static_cast(*this); + } + + CONSTCD14 time_of_day_storage& make24() NOEXCEPT {base::make24(); return *this;} + CONSTCD14 time_of_day_storage& make12() NOEXCEPT {base::make12(); return *this;} + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const time_of_day_storage& t) + { + using namespace std; + detail::save_stream _(os); + if (static_cast(t) < std::chrono::hours{0}) + os << '-'; + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + if (t.mode_ != am && t.mode_ != pm) + os.width(2); + os << std::abs(t.h_.count()) << ':'; + os.width(2); + os << std::abs(t.m_.count()) << ':'; + os.width(2); + os << std::abs(t.s_.count()); + switch (t.mode_) + { + case am: + os << "am"; + break; + case pm: + os << "pm"; + break; + } + return os; + } +}; + +template +class time_of_day_storage, detail::classify::subsecond> + : private detail::time_of_day_base +{ +public: + using precision = std::chrono::duration; + +private: + using base = detail::time_of_day_base; + + std::chrono::minutes m_; + std::chrono::seconds s_; + precision sub_s_; + +public: + CONSTCD11 explicit time_of_day_storage(precision since_midnight) NOEXCEPT + : base(std::chrono::duration_cast(since_midnight), is24hr) + , m_(std::chrono::duration_cast(since_midnight - h_)) + , s_(std::chrono::duration_cast(since_midnight - h_ - m_)) + , sub_s_(since_midnight - h_ - m_ - s_) + {} + + CONSTCD11 explicit time_of_day_storage(std::chrono::hours h, std::chrono::minutes m, + std::chrono::seconds s, precision sub_s, + unsigned md) NOEXCEPT + : base(h, md) + , m_(m) + , s_(s) + , sub_s_(sub_s) + {} + + CONSTCD11 std::chrono::hours hours() const NOEXCEPT {return h_;} + CONSTCD11 std::chrono::minutes minutes() const NOEXCEPT {return m_;} + CONSTCD14 std::chrono::seconds& seconds() NOEXCEPT {return s_;} + CONSTCD11 std::chrono::seconds seconds() const NOEXCEPT {return s_;} + CONSTCD11 precision subseconds() const NOEXCEPT {return sub_s_;} + CONSTCD11 unsigned mode() const NOEXCEPT {return mode_;} + + CONSTCD14 explicit operator precision() const NOEXCEPT + { + return to24hr() + s_ + sub_s_ + m_; + } + + CONSTCD14 precision to_duration() const NOEXCEPT + { + return static_cast(*this); + } + + CONSTCD14 time_of_day_storage& make24() NOEXCEPT {base::make24(); return *this;} + CONSTCD14 time_of_day_storage& make12() NOEXCEPT {base::make12(); return *this;} + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const time_of_day_storage& t) + { + using namespace std; + detail::save_stream _(os); + if (static_cast(t) < std::chrono::hours{0}) + os << '-'; + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + if (t.mode_ != am && t.mode_ != pm) + os.width(2); + os << std::abs(t.h_.count()) << ':'; + os.width(2); + os << std::abs(t.m_.count()) << ':'; + os.width(2); + os << std::abs(t.s_.count()) + << use_facet>(os.getloc()).decimal_point(); + os.imbue(locale{}); +#if __cplusplus >= 201402 + CONSTDATA auto cl10 = ceil_log10(Period::den); + using scale = std::ratio_multiply>; + os.width(cl10); + os << std::abs(t.sub_s_.count()) * scale::num / scale::den; +#else // __cplusplus >= 201402 + // inefficient sub-optimal run-time mess, but gets the job done + const unsigned long long cl10 = + static_cast(std::ceil(log10(Period::den))); + const auto p10 = std::pow(10., cl10); + os.width(cl10); + os << static_cast(std::abs(t.sub_s_.count()) + * Period::num * p10 / Period::den); +#endif // __cplusplus >= 201402 + switch (t.mode_) + { + case am: + os << "am"; + break; + case pm: + os << "pm"; + break; + } + return os; + } + +private: +#if __cplusplus >= 201402 + CONSTCD11 static int ceil_log10(unsigned long long i) NOEXCEPT + { + --i; + int n = 0; + if (i >= 10000000000000000) {i /= 10000000000000000; n += 16;} + if (i >= 100000000) {i /= 100000000; n += 8;} + if (i >= 10000) {i /= 10000; n += 4;} + if (i >= 100) {i /= 100; n += 2;} + if (i >= 10) {i /= 10; n += 1;} + if (i >= 1) {i /= 10; n += 1;} + return n; + } + + CONSTCD11 static unsigned long long pow10(unsigned y) NOEXCEPT + { + CONSTDATA unsigned long long p10[] = + { + 1ull, + 10ull, + 100ull, + 1000ull, + 10000ull, + 100000ull, + 1000000ull, + 10000000ull, + 100000000ull, + 1000000000ull, + 10000000000ull, + 100000000000ull, + 1000000000000ull, + 10000000000000ull, + 100000000000000ull, + 1000000000000000ull, + 10000000000000000ull, + 100000000000000000ull, + 1000000000000000000ull, + 10000000000000000000ull + }; + return p10[y]; + } +#endif // __cplusplus >= 201402 +}; + +} // namespace detail + +template +class time_of_day + : public detail::time_of_day_storage +{ + using base = detail::time_of_day_storage; +public: +#if !(defined(_MSC_VER) && !defined(__clang__)) + // C++11 + using base::base; +#else + // MS cl compiler workaround. + template + explicit time_of_day(Args&& ...args) + : base(std::forward(args)...) + {} +#endif +}; + +template ::value>::type> +CONSTCD11 +inline +time_of_day> +make_time(const std::chrono::duration& d) +{ + return time_of_day>(d); +} + +CONSTCD11 +inline +time_of_day +make_time(const std::chrono::hours& h, unsigned md) +{ + return time_of_day(h, md); +} + +CONSTCD11 +inline +time_of_day +make_time(const std::chrono::hours& h, const std::chrono::minutes& m, + unsigned md) +{ + return time_of_day(h, m, md); +} + +CONSTCD11 +inline +time_of_day +make_time(const std::chrono::hours& h, const std::chrono::minutes& m, + const std::chrono::seconds& s, unsigned md) +{ + return time_of_day(h, m, s, md); +} + +template >::value>::type> +CONSTCD11 +inline +time_of_day> +make_time(const std::chrono::hours& h, const std::chrono::minutes& m, + const std::chrono::seconds& s, const std::chrono::duration& sub_s, + unsigned md) +{ + return time_of_day>(h, m, s, sub_s, md); +} + +template +inline +typename std::enable_if +< + !std::chrono::treat_as_floating_point::value && + std::ratio_less::value + , std::basic_ostream& +>::type +operator<<(std::basic_ostream& os, const sys_time& tp) +{ + auto const dp = floor(tp); + return os << year_month_day(dp) << ' ' << make_time(tp-dp); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const sys_days& dp) +{ + return os << year_month_day(dp); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const local_time& ut) +{ + return os << sys_time{ut.time_since_epoch()}; +} + +// format + +namespace detail +{ + +template +std::basic_string +format(const std::locale& loc, std::basic_string fmt, + const local_time& tp, const std::string* abbrev = nullptr, + const std::chrono::seconds* offset_sec = nullptr) +{ + // Handle these specially + // %S append fractional seconds if tp has precision finer than seconds + // %T append fractional seconds if tp has precision finer than seconds + // %z replace with offset from zone on +/-hhmm format + // %Ez, %Oz replace with offset from zone on +/-hh:mm format + // %Z replace with abbreviation from zone + + using namespace std; + using namespace std::chrono; + auto command = false; + auto modified = false; + for (std::size_t i = 0; i < fmt.size(); ++i) + { + switch (fmt[i]) + { + case '%': + command = true; + modified = false; + break; + case 'O': + case 'E': + modified = true; + break; + case 'S': + case 'T': + if (command && !modified && ratio_less>::value) + { + basic_ostringstream os; + os.imbue(loc); + os << make_time(tp - floor(tp)); + auto s = os.str(); + s.erase(0, 8); + fmt.insert(i+1, s); + i += s.size() - 1; + } + command = false; + modified = false; + break; + case 'z': + if (command) + { + if (offset_sec == nullptr) + throw std::runtime_error("Can not format local_time with %z"); + else + { + auto offset = duration_cast(*offset_sec); + basic_ostringstream os; + os.imbue(loc); + if (offset >= minutes{0}) + os << '+'; + os << make_time(offset); + auto s = os.str(); + if (!modified) + s.erase(s.find(':'), 1); + fmt.replace(i - 1 - modified, 2 + modified, s); + i += 3; + } + } + command = false; + modified = false; + break; + case 'Z': + if (command && !modified) + { + if (abbrev == nullptr) + throw std::runtime_error("Can not format local_time with %Z"); + else + { + fmt.replace(i - 1, 2, + std::basic_string(abbrev->begin(), abbrev->end())); + i += abbrev->size() - 1; + } + } + command = false; + modified = false; + break; + default: + command = false; + modified = false; + break; + } + } + auto& f = use_facet>(loc); + basic_ostringstream os; + os.imbue(loc); + auto ld = floor(tp); + auto ymd = year_month_day{ld}; + auto hms = make_time(floor(tp - ld)); + std::tm tm{}; + tm.tm_sec = static_cast(hms.seconds().count()); + tm.tm_min = static_cast(hms.minutes().count()); + tm.tm_hour = static_cast(hms.hours().count()); + tm.tm_mday = static_cast(static_cast(ymd.day())); + tm.tm_mon = static_cast(static_cast(ymd.month()) - 1); + tm.tm_year = static_cast(ymd.year()) - 1900; + tm.tm_wday = static_cast(static_cast(weekday{ld})); + tm.tm_yday = static_cast((ld - local_days(ymd.year()/1/1)).count()); + f.put(os, os, os.fill(), &tm, fmt.data(), fmt.data() + fmt.size()); + return os.str(); +} + +} // namespace detail + +template +inline +std::basic_string +format(const std::locale& loc, std::basic_string fmt, + const local_time& tp) +{ + return detail::format(loc, std::move(fmt), tp); +} + +template +inline +std::basic_string +format(std::basic_string fmt, const local_time& tp) +{ + return detail::format(std::locale{}, std::move(fmt), tp); +} + +template +inline +std::basic_string +format(const std::locale& loc, std::basic_string fmt, + const sys_time& tp) +{ + const std::string abbrev("UTC"); + CONSTDATA std::chrono::seconds offset{0}; + return detail::format(loc, std::move(fmt), + local_time{tp.time_since_epoch()}, &abbrev, &offset); +} + +template +inline +std::basic_string +format(std::basic_string fmt, const sys_time& tp) +{ + const std::string abbrev("UTC"); + CONSTDATA std::chrono::seconds offset{0}; + return detail::format(std::locale{}, std::move(fmt), + local_time{tp.time_since_epoch()}, &abbrev, &offset); +} + +// const CharT* formats + +template +inline +std::basic_string +format(const std::locale& loc, const CharT* fmt, const local_time& tp) +{ + return detail::format(loc, std::basic_string(fmt), tp); +} + +template +inline +std::basic_string +format(const CharT* fmt, const local_time& tp) +{ + return detail::format(std::locale{}, std::basic_string(fmt), tp); +} + +template +inline +std::basic_string +format(const std::locale& loc, const CharT* fmt, const sys_time& tp) +{ + const std::string abbrev("UTC"); + CONSTDATA std::chrono::seconds offset{0}; + return detail::format(loc, std::basic_string(fmt), + local_time{tp.time_since_epoch()}, + &abbrev, &offset); +} + +template +inline +std::basic_string +format(const CharT* fmt, const sys_time& tp) +{ + const std::string abbrev("UTC"); + CONSTDATA std::chrono::seconds offset{0}; + return detail::format(std::locale{}, std::basic_string(fmt), + local_time{tp.time_since_epoch()}, + &abbrev, &offset); +} + +// parse + +namespace detail +{ + +template +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::basic_string* abbrev = nullptr, + std::chrono::minutes* offset = nullptr) +{ + using namespace std; + using namespace std::chrono; + typename basic_istream::sentry ok{is}; + if (ok) + { + auto& f = use_facet>(is.getloc()); + ios_base::iostate err = ios_base::goodbit; + std::tm tm{}; + Duration subseconds{}; + std::basic_string temp_abbrev; + minutes temp_offset{}; + + auto b = format.data(); + auto i = b; + auto e = b + format.size(); + auto command = false; + auto modified = false; + for (; i < e && 0 == (err & ios_base::failbit); ++i) + { + switch (*i) + { + case '%': + command = true; + modified = false; + break; + case 'F': + if (command && !modified) + { + f.get(is, 0, is, err, &tm, b, i-1); + b = i+1; + if ((err & ios_base::failbit) == 0) + { + const CharT ymd[] = {'%', 'Y', '-', '%', 'm', '-', '%', 'd'}; + f.get(is, 0, is, err, &tm, ymd, ymd+8); + } + } + command = false; + modified = false; + break; + case 'O': + case 'E': + modified = true; + break; + case 'T': + case 'S': + if (command && !modified) + { + f.get(is, 0, is, err, &tm, b, i-1); + if (err & ios_base::failbit) + { + command = modified = false; + break; // break the switch/case + } + b = i+1; + if (*i == 'T') + { + const CharT hm[] = {'%', 'H', ':', '%', 'M', ':'}; + f.get(is, 0, is, err, &tm, hm, hm+6); + if (err & ios_base::failbit) + { + command = modified = false; + break; // break the switch/case + } + } + if (ratio_less>::value) + { + auto decimal_point = Traits::to_int_type( + use_facet>(is.getloc()).decimal_point()); + string buf; + while (true) + { + auto k = is.peek(); + if (Traits::eq_int_type(k, Traits::eof())) + break; + if (Traits::eq_int_type(k, decimal_point)) + { + buf += '.'; + decimal_point = Traits::eof(); + is.get(); + } + else + { + auto c = static_cast(Traits::to_char_type(k)); + if (isdigit(c)) + { + buf += c; + is.get(); + } + else + { + break; + } + } + }; + if (!buf.empty()) + subseconds = round(duration{stod(buf)}); + else + err |= ios_base::failbit; + } + else + { + const CharT hm[] = {'%', 'S'}; + f.get(is, 0, is, err, &tm, hm, hm+2); + } + } + command = false; + modified = false; + break; + case 'z': + if (command) + { + f.get(is, 0, is, err, &tm, b, i-1-modified); + b = i+1; + if ((err & ios_base::failbit) == 0) + { + CharT sign{}; + is >> sign; + if (!is.fail() && (sign == '+' || sign == '-')) + { + char h1, h0, m1, m0; + char colon = ':'; + h1 = static_cast(is.get()); + h0 = static_cast(is.get()); + if (modified) + { + if (h0 == ':') + { + colon = h0; + h0 = h1; + h1 = '0'; + } + else + colon = static_cast(is.get()); + } + m1 = static_cast(is.get()); + m0 = static_cast(is.get()); + if (!is.fail() && std::isdigit(h1) && std::isdigit(h0) + && std::isdigit(m1) && std::isdigit(m0) + && colon == ':') + { + temp_offset = 10*hours{h1 - '0'} + hours{h0 - '0'} + + 10*minutes{m1 - '0'} + minutes{m0 - '0'}; + if (sign == '-') + temp_offset = -temp_offset; + } + else + err |= ios_base::failbit; + } + else + err |= ios_base::failbit; + } + } + command = false; + modified = false; + break; + case 'Z': + if (command && !modified) + { + f.get(is, 0, is, err, &tm, b, i-1); + b = i+1; + if ((err & ios_base::failbit) == 0) + { + is >> temp_abbrev; + if (is.fail()) + err |= ios_base::failbit; + } + } + command = false; + modified = false; + break; + default: + command = false; + modified = false; + break; + } + } + if ((err & ios_base::failbit) == 0) + { + if (b < e) + f.get(is, 0, is, err, &tm, b, e); + if ((err & ios_base::failbit) == 0) + { + using namespace std::chrono; + tp = floor(local_days(year{tm.tm_year + 1900}/ + (tm.tm_mon+1)/ + (tm.tm_mday)) + + subseconds + seconds{tm.tm_sec} + + minutes{tm.tm_min} + hours{tm.tm_hour}); + if (abbrev != nullptr) + *abbrev = std::move(temp_abbrev); + if (offset != nullptr) + *offset = temp_offset; + } + } + is.setstate(err); + } + else + is.setstate(ios_base::failbit); +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::chrono::minutes* offset) +{ + parse(is, format, tp, static_cast*>(nullptr), offset); +} + +template > +struct parse_local_manip +{ + const std::basic_string format_; + local_time& tp_; + std::basic_string* abbrev_; + std::chrono::minutes* offset_; + +public: + parse_local_manip(std::basic_string format, + local_time& tp, std::basic_string* abbrev = nullptr, + std::chrono::minutes* offset = nullptr) + : format_(std::move(format)) + , tp_(tp) + , abbrev_(abbrev) + , offset_(offset) + {} + +}; + +template +std::basic_istream& +operator>>(std::basic_istream& is, + const parse_local_manip& x) +{ + parse(is, x.format_, x.tp_, x.abbrev_, x.offset_); + return is; +} + +template > +struct parse_sys_manip +{ + const std::basic_string format_; + sys_time& tp_; + std::basic_string* abbrev_; + std::chrono::minutes* offset_; + +public: + parse_sys_manip(std::basic_string format, + sys_time& tp, std::basic_string* abbrev = nullptr, + std::chrono::minutes* offset = nullptr) + : format_(std::move(format)) + , tp_(tp) + , abbrev_(abbrev) + , offset_(offset) + {} + +}; + +template +std::basic_istream& +operator>>(std::basic_istream& is, + const parse_sys_manip& x) +{ + std::chrono::minutes offset{}; + auto offptr = x.offset_ ? x.offset_ : &offset; + local_time lt; + parse(is, x.format_, lt, x.abbrev_, offptr); + if (!is.fail()) + x.tp_ = sys_time{floor(lt - *offptr).time_since_epoch()}; + return is; +} + +} // namespace detail + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, sys_time& tp) +{ + std::chrono::minutes offset{}; + local_time lt; + detail::parse(is, format, lt, &offset); + if (!is.fail()) + tp = sys_time{floor(lt - offset).time_since_epoch()}; +} + +template +inline +detail::parse_sys_manip +parse(const std::basic_string& format, sys_time& tp) +{ + return {format, tp}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, sys_time& tp, + std::basic_string& abbrev) +{ + std::chrono::minutes offset{}; + local_time lt; + detail::parse(is, format, lt, &abbrev, &offset); + if (!is.fail()) + tp = sys_time{floor(lt - offset).time_since_epoch()}; +} + +template +inline +detail::parse_sys_manip +parse(const std::basic_string& format, sys_time& tp, + std::basic_string& abbrev) +{ + return {format, tp, &abbrev}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, sys_time& tp, + std::chrono::minutes& offset) +{ + local_time lt; + detail::parse(is, format, lt, &offset); + if (!is.fail()) + tp = sys_time{floor(lt - offset).time_since_epoch()}; +} + +template +inline +detail::parse_sys_manip +parse(const std::basic_string& format, sys_time& tp, + std::chrono::minutes& offset) +{ + return {format, tp, nullptr, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, sys_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + local_time lt; + detail::parse(is, format, lt, &abbrev, &offset); + if (!is.fail()) + tp = sys_time{floor(lt - offset).time_since_epoch()}; +} + +template +inline +detail::parse_sys_manip +parse(const std::basic_string& format, sys_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, sys_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + local_time lt; + detail::parse(is, format, lt, &abbrev, &offset); + if (!is.fail()) + tp = sys_time{floor(lt - offset).time_since_epoch()}; +} + +template +inline +detail::parse_sys_manip +parse(const std::basic_string& format, sys_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp) +{ + detail::parse(is, format, tp); +} + +template +inline +detail::parse_local_manip +parse(const std::basic_string& format, local_time& tp) +{ + return {format, tp}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::basic_string& abbrev) +{ + detail::parse(is, format, tp, &abbrev); +} + +template +inline +detail::parse_local_manip +parse(const std::basic_string& format, local_time& tp, + std::basic_string& abbrev) +{ + return {format, tp, &abbrev}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::chrono::minutes& offset) +{ + detail::parse(is, format, tp, &offset); +} + +template +inline +detail::parse_local_manip +parse(const std::basic_string& format, local_time& tp, + std::chrono::minutes& offset) +{ + return {format, tp, nullptr, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + detail::parse(is, format, tp, &abbrev, &offset); +} + +template +inline +detail::parse_local_manip +parse(const std::basic_string& format, local_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, + const std::basic_string& format, local_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + detail::parse(is, format, tp, &abbrev, &offset); +} + +template +inline +detail::parse_local_manip +parse(const std::basic_string& format, local_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + return {format, tp, &abbrev, &offset}; +} + +// const CharT* formats + +template +inline +void +parse(std::basic_istream& is, const CharT* format, sys_time& tp) +{ + parse(is, std::basic_string(format), tp); +} + +template +inline +detail::parse_sys_manip +parse(const CharT* format, sys_time& tp) +{ + return {format, tp}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, sys_time& tp, + std::basic_string& abbrev) +{ + parse(is, std::basic_string(format), tp, abbrev); +} + +template +inline +detail::parse_sys_manip +parse(const CharT* format, sys_time& tp, + std::basic_string& abbrev) +{ + return {format, tp, &abbrev}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, sys_time& tp, + std::chrono::minutes& offset) +{ + parse(is, std::basic_string(format), tp, offset); +} + +template +inline +detail::parse_sys_manip +parse(const CharT* format, sys_time& tp, std::chrono::minutes& offset) +{ + return {format, tp, nullptr, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, sys_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + parse(is, std::basic_string(format), tp, abbrev, offset); +} + +template +inline +detail::parse_sys_manip +parse(const CharT* format, sys_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, sys_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + parse(is, std::basic_string(format), tp, abbrev, offset); +} + +template +inline +detail::parse_sys_manip +parse(const CharT* format, sys_time& tp, + std::chrono::minutes& offset, std::basic_string& abbrev) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, + local_time& tp) +{ + parse(is, std::basic_string(format), tp); +} + +template +inline +detail::parse_local_manip +parse(const CharT* format, local_time& tp) +{ + return {format, tp}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, + local_time& tp, std::basic_string& abbrev) +{ + parse(is, std::basic_string(format), tp, abbrev); +} + +template +inline +detail::parse_local_manip +parse(const CharT* format, local_time& tp, + std::basic_string& abbrev) +{ + return {format, tp, &abbrev}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, + local_time& tp, std::chrono::minutes& offset) +{ + parse(is, std::basic_string(format), tp, offset); +} + +template +inline +detail::parse_local_manip +parse(const CharT* format, local_time& tp, std::chrono::minutes& offset) +{ + return {format, tp, nullptr, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, + local_time& tp, std::basic_string& abbrev, + std::chrono::minutes& offset) +{ + parse(is, std::basic_string(format), tp, abbrev, offset); +} + +template +inline +detail::parse_local_manip +parse(const CharT* format, local_time& tp, + std::basic_string& abbrev, std::chrono::minutes& offset) +{ + return {format, tp, &abbrev, &offset}; +} + +template +inline +void +parse(std::basic_istream& is, const CharT* format, + local_time& tp, std::chrono::minutes& offset, + std::basic_string& abbrev) +{ + parse(is, std::basic_string(format), tp, abbrev, offset); +} + +template +inline +detail::parse_local_manip +parse(const CharT* format, local_time& tp, std::chrono::minutes& offset, + std::basic_string& abbrev) +{ + return {format, tp, &abbrev, &offset}; +} + +} // namespace date + +#endif // DATE_H diff --git a/ext/date/ios.h b/ext/date/ios.h new file mode 100644 index 0000000..3f791bd --- /dev/null +++ b/ext/date/ios.h @@ -0,0 +1,49 @@ +// +// ios.h +// DateTimeLib +// +// The MIT License (MIT) +// +// Copyright (c) 2016 Alexander Kormanovsky +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. + +#ifndef ios_hpp +#define ios_hpp + +#if __APPLE__ +# include +# if TARGET_OS_IPHONE +# include + + namespace date + { + namespace iOSUtils + { + + std::string get_tzdata_path(); + + } // namespace iOSUtils + } // namespace date + +# endif // TARGET_OS_IPHONE +#else // !__APPLE__ +# define TARGET_OS_IPHONE 0 +#endif // !__APPLE__ +#endif // ios_hpp diff --git a/ext/date/ios.mm b/ext/date/ios.mm new file mode 100644 index 0000000..ec95302 --- /dev/null +++ b/ext/date/ios.mm @@ -0,0 +1,405 @@ +// +// The MIT License (MIT) +// +// Copyright (c) 2016 Alexander Kormanovsky +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// + +#include "ios.h" + +#if TARGET_OS_IPHONE + +#include + +#include +#include +#include + +#ifndef TAR_DEBUG +# define TAR_DEBUG 0 +#endif + +#define INTERNAL_DIR "Library/tzdata" +#define TARGZ_EXTENSION "tar.gz" + +#define TAR_BLOCK_SIZE 512 +#define TAR_TYPE_POSITION 156 +#define TAR_NAME_POSITION 0 +#define TAR_NAME_SIZE 100 +#define TAR_SIZE_POSITION 124 +#define TAR_SIZE_SIZE 12 + +namespace date +{ +namespace iOSUtils +{ + +struct TarInfo +{ + char objType; + std::string objName; + int64_t realContentSize; // writable size without padding zeroes + int64_t blocksContentSize; // adjusted size to 512 bytes blocks + bool success; +}; + +char* convertCFStringRefPathToCStringPath(CFStringRef ref); +bool extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath); +TarInfo getTarObjectInfo(CFReadStreamRef readStream, int64_t location); +std::string getTarObject(CFReadStreamRef readStream, int64_t size); +bool writeFile(CFURLRef tzdataUrl, std::string fileName, std::string data, + int64_t realContentSize); + +std::string +date::iOSUtils::get_tzdata_path() +{ + CFURLRef ref = CFCopyHomeDirectoryURL(); + CFStringRef homePath = CFURLCopyPath(CFCopyHomeDirectoryURL()); + std::string tzdata_path(std::string(convertCFStringRefPathToCStringPath(homePath)) + + INTERNAL_DIR); + + if (access(tzdata_path.c_str(), F_OK) == 0) + { +#if TAR_DEBUG + printf("tzdata exists\n"); +#endif + return tzdata_path; + } + + CFBundleRef mainBundle = CFBundleGetMainBundle(); + CFArrayRef paths = CFBundleCopyResourceURLsOfType(mainBundle, CFSTR(TARGZ_EXTENSION), + NULL); + + if (CFArrayGetCount(paths) != 0) + { + // get archive path, assume there is no other tar.gz in bundle + CFURLRef archiveUrl = static_cast(CFArrayGetValueAtIndex(paths, 0)); + CFStringRef archiveName= CFURLCopyPath(archiveUrl); + archiveUrl = CFBundleCopyResourceURL(mainBundle, archiveName, NULL, NULL); + + extractTzdata(CFCopyHomeDirectoryURL(), archiveUrl, tzdata_path); + } + + return tzdata_path; +} + +char* +convertCFStringRefPathToCStringPath(CFStringRef ref) +{ + CFIndex bufferSize = CFStringGetMaximumSizeOfFileSystemRepresentation(ref); + char *buffer = new char[bufferSize]; + CFStringGetFileSystemRepresentation(ref, buffer, bufferSize); + return buffer; +} + +bool extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath) +{ + const char *TAR_TMP_PATH = "/tmp.tar"; + + // create Library path + CFStringRef libraryStr = CFStringCreateWithCString(NULL, "Library", + CFStringGetSystemEncoding()); + CFURLRef libraryUrl = CFURLCreateCopyAppendingPathComponent(kCFAllocatorDefault, + homeUrl, libraryStr, + false); + + // create tzdata path + CFStringRef tzdataPathRef = CFStringCreateWithCString(NULL, INTERNAL_DIR, + CFStringGetSystemEncoding()); + CFURLRef tzdataPathUrl = CFURLCreateCopyAppendingPathComponent(NULL, homeUrl, + tzdataPathRef, false); + + // create src archive path + CFStringRef archivePath = CFURLCopyPath(archiveUrl); + gzFile tarFile = gzopen(convertCFStringRefPathToCStringPath(archivePath), "rb"); + + // create tar unpacking path + CFStringRef tarName = CFStringCreateWithCString(NULL, TAR_TMP_PATH, + CFStringGetSystemEncoding()); + CFURLRef tarUrl = CFURLCreateCopyAppendingPathComponent(NULL, libraryUrl, tarName, + false); + const char *tarPath = convertCFStringRefPathToCStringPath(CFURLCopyPath(tarUrl)); + + // create tzdata directory + mkdir(destPath.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); + + // create stream + CFWriteStreamRef writeStream = CFWriteStreamCreateWithFile(NULL, tarUrl); + bool success = true; + + if (!CFWriteStreamOpen(writeStream)) + { + CFStreamError err = CFWriteStreamGetError(writeStream); + + if (err.domain == kCFStreamErrorDomainPOSIX) + { + printf("kCFStreamErrorDomainPOSIX %i\n", err.error); + } + else if(err.domain == kCFStreamErrorDomainMacOSStatus) + { + printf("kCFStreamErrorDomainMacOSStatus %i\n", err.error); + } + + success = false; + } + + if (!success) + { + remove(tarPath); + return false; + } + + // ======= extract tar ======== + + unsigned int bufferLength = 1024 * 256; // 256Kb + void *buffer = malloc(bufferLength); + + while (true) + { + int readBytes = gzread(tarFile, buffer, bufferLength); + + if (readBytes > 0) + { + CFIndex writtenBytes = CFWriteStreamWrite(writeStream, (unsigned char*)buffer, + readBytes); + + if (writtenBytes < 0) + { + CFStreamError err = CFWriteStreamGetError(writeStream); + printf("write stream error %i\n", err.error); + success = false; + break; + } + } + else if (readBytes == 0) + { + break; + } + else if (readBytes == -1) + { + printf("decompression failed\n"); + success = false; + break; + } + else + { + printf("unexpected zlib state\n"); + success = false; + break; + } + } + + CFWriteStreamClose(writeStream); + CFRelease(writeStream); + free(buffer); + gzclose(tarFile); + + if (!success) + { + remove(tarPath); + return false; + } + + // ======== extract files ========= + + uint64_t location = 0; // Position in the file + + // get file size + struct stat stat_buf; + int res = stat(tarPath, &stat_buf); + if (res != 0) + { + printf("error file size\n"); + remove(tarPath); + return false; + } + int64_t tarSize = stat_buf.st_size; + + // create read stream + CFReadStreamRef readStream = CFReadStreamCreateWithFile(kCFAllocatorDefault, tarUrl); + + if (!CFReadStreamOpen(readStream)) + { + CFStreamError err = CFReadStreamGetError(readStream); + + if (err.domain == kCFStreamErrorDomainPOSIX) + { + printf("kCFStreamErrorDomainPOSIX %i", err.error); + } + else if(err.domain == kCFStreamErrorDomainMacOSStatus) + { + printf("kCFStreamErrorDomainMacOSStatus %i", err.error); + } + + success = false; + } + + if (!success) + { + CFRelease(readStream); + remove(tarPath); + return false; + } + + int count = 0; + long size = 0; + + // process files + while (location < tarSize) + { + TarInfo info = getTarObjectInfo(readStream, location); + + if (!info.success || info.realContentSize == 0) + { + break; // something wrong or all files are read + } + + switch (info.objType) + { + case '0': // file + case '\0': // + { + std::string obj = getTarObject(readStream, info.blocksContentSize); +#if TAR_DEBUG + size += info.realContentSize; + printf("#%i %s file size %lld written total %ld from %lld\n", ++count, + info.objName.c_str(), info.realContentSize, size, tarSize); +#endif + writeFile(tzdataPathUrl, info.objName, obj, info.realContentSize); + location += info.blocksContentSize; + + break; + } + } + } + + CFReadStreamClose(readStream); + CFRelease(readStream); + + remove(tarPath); + + return true; +} + +TarInfo +getTarObjectInfo(CFReadStreamRef readStream, int64_t location) +{ + int64_t length = TAR_BLOCK_SIZE; + uint8_t buffer[length]; + + char type; + char name[TAR_NAME_SIZE + 1]; + char sizeBuf[TAR_SIZE_SIZE + 1]; + CFIndex bytesRead; + + bool avail = CFReadStreamHasBytesAvailable(readStream); + + bytesRead = CFReadStreamRead(readStream, buffer, length); + + if (bytesRead < 0) + { + CFStreamError err = CFReadStreamGetError(readStream); + printf("error reading tar object info %i", err.error); + return {false}; + } + + memcpy(&type, &buffer[TAR_TYPE_POSITION], 1); + + memset(&name, '\0', TAR_NAME_SIZE + 1); + memcpy(&name, &buffer[TAR_NAME_POSITION], TAR_NAME_SIZE); + + memset(&sizeBuf, '\0', TAR_SIZE_SIZE + 1); + memcpy(&sizeBuf, &buffer[TAR_SIZE_POSITION], TAR_SIZE_SIZE); + int64_t realSize = strtol(sizeBuf, NULL, 8); + int64_t blocksSize = realSize + (TAR_BLOCK_SIZE - (realSize % TAR_BLOCK_SIZE)); + + return {type, std::string(name), realSize, blocksSize, true}; +} + +std::string +getTarObject(CFReadStreamRef readStream, int64_t size) +{ + uint8_t buffer[size]; + + CFIndex bytesRead = CFReadStreamRead(readStream, buffer, size); + + if (bytesRead < 0) + { + CFStreamError err = CFReadStreamGetError(readStream); + printf("error reading tar object info %i", err.error); + } + + return std::string((char *)buffer); +} + +bool +writeFile(CFURLRef tzdataUrl, std::string fileName, std::string data, + int64_t realContentSize) +{ + // create stream + CFStringRef fileNameRef = CFStringCreateWithCString(NULL, fileName.c_str(), + CFStringGetSystemEncoding()); + CFURLRef url = CFURLCreateCopyAppendingPathComponent(NULL, tzdataUrl, fileNameRef, + false); + CFWriteStreamRef writeStream = CFWriteStreamCreateWithFile(NULL, url); + + // open stream + if (!CFWriteStreamOpen(writeStream)) + { + CFStreamError err = CFWriteStreamGetError(writeStream); + + if (err.domain == kCFStreamErrorDomainPOSIX) + { + printf("kCFStreamErrorDomainPOSIX %i\n", err.error); + } + else if(err.domain == kCFStreamErrorDomainMacOSStatus) + { + printf("kCFStreamErrorDomainMacOSStatus %i\n", err.error); + } + + CFRelease(writeStream); + return false; + } + + // trim empty space + uint8_t trimmedData[realContentSize + 1]; + memset(&trimmedData, '\0', realContentSize); + memcpy(&trimmedData, data.c_str(), realContentSize); + + // write + CFIndex writtenBytes = CFWriteStreamWrite(writeStream, trimmedData, realContentSize); + + if (writtenBytes < 0) + { + CFStreamError err = CFWriteStreamGetError(writeStream); + printf("write stream error %i\n", err.error); + } + + CFWriteStreamClose(writeStream); + CFRelease(writeStream); + writeStream = NULL; + + return true; +} + +} // namespace iOSUtils +} // namespace date + +#endif // TARGET_OS_IPHONE diff --git a/ext/date/julian.h b/ext/date/julian.h new file mode 100644 index 0000000..696be7c --- /dev/null +++ b/ext/date/julian.h @@ -0,0 +1,3046 @@ +#ifndef JULIAN_H +#define JULIAN_H + +// The MIT License (MIT) +// +// Copyright (c) 2016 Howard Hinnant +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +#include "date.h" + +namespace julian +{ + +// durations + +using days = date::days; + +using weeks = date::weeks; + +using years = std::chrono::duration + , days::period>>; + +using months = std::chrono::duration + >>; + +// time_point + +using sys_days = date::sys_days; +using local_days = date::local_days; + +// types + +struct last_spec +{ + explicit last_spec() = default; +}; + +class day; +class month; +class year; + +class weekday; +class weekday_indexed; +class weekday_last; + +class month_day; +class month_day_last; +class month_weekday; +class month_weekday_last; + +class year_month; + +class year_month_day; +class year_month_day_last; +class year_month_weekday; +class year_month_weekday_last; + +// date composition operators + +CONSTCD11 year_month operator/(const year& y, const month& m) NOEXCEPT; +CONSTCD11 year_month operator/(const year& y, int m) NOEXCEPT; + +CONSTCD11 month_day operator/(const day& d, const month& m) NOEXCEPT; +CONSTCD11 month_day operator/(const day& d, int m) NOEXCEPT; +CONSTCD11 month_day operator/(const month& m, const day& d) NOEXCEPT; +CONSTCD11 month_day operator/(const month& m, int d) NOEXCEPT; +CONSTCD11 month_day operator/(int m, const day& d) NOEXCEPT; + +CONSTCD11 month_day_last operator/(const month& m, last_spec) NOEXCEPT; +CONSTCD11 month_day_last operator/(int m, last_spec) NOEXCEPT; +CONSTCD11 month_day_last operator/(last_spec, const month& m) NOEXCEPT; +CONSTCD11 month_day_last operator/(last_spec, int m) NOEXCEPT; + +CONSTCD11 month_weekday operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT; +CONSTCD11 month_weekday operator/(int m, const weekday_indexed& wdi) NOEXCEPT; +CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT; +CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, int m) NOEXCEPT; + +CONSTCD11 month_weekday_last operator/(const month& m, const weekday_last& wdl) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(int m, const weekday_last& wdl) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, const month& m) NOEXCEPT; +CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, int m) NOEXCEPT; + +CONSTCD11 year_month_day operator/(const year_month& ym, const day& d) NOEXCEPT; +CONSTCD11 year_month_day operator/(const year_month& ym, int d) NOEXCEPT; +CONSTCD11 year_month_day operator/(const year& y, const month_day& md) NOEXCEPT; +CONSTCD11 year_month_day operator/(int y, const month_day& md) NOEXCEPT; +CONSTCD11 year_month_day operator/(const month_day& md, const year& y) NOEXCEPT; +CONSTCD11 year_month_day operator/(const month_day& md, int y) NOEXCEPT; + +CONSTCD11 + year_month_day_last operator/(const year_month& ym, last_spec) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const year& y, const month_day_last& mdl) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(int y, const month_day_last& mdl) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const month_day_last& mdl, const year& y) NOEXCEPT; +CONSTCD11 + year_month_day_last operator/(const month_day_last& mdl, int y) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const year& y, const month_weekday& mwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(int y, const month_weekday& mwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const month_weekday& mwd, const year& y) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator/(const month_weekday& mwd, int y) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(int y, const month_weekday_last& mwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator/(const month_weekday_last& mwdl, int y) NOEXCEPT; + +// Detailed interface + +// day + +class day +{ + unsigned char d_; + +public: + explicit CONSTCD11 day(unsigned d) NOEXCEPT; + + CONSTCD14 day& operator++() NOEXCEPT; + CONSTCD14 day operator++(int) NOEXCEPT; + CONSTCD14 day& operator--() NOEXCEPT; + CONSTCD14 day operator--(int) NOEXCEPT; + + CONSTCD14 day& operator+=(const days& d) NOEXCEPT; + CONSTCD14 day& operator-=(const days& d) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator< (const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator> (const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const day& x, const day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const day& x, const day& y) NOEXCEPT; + +CONSTCD11 day operator+(const day& x, const days& y) NOEXCEPT; +CONSTCD11 day operator+(const days& x, const day& y) NOEXCEPT; +CONSTCD11 day operator-(const day& x, const days& y) NOEXCEPT; +CONSTCD11 days operator-(const day& x, const day& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const day& d); + +// month + +class month +{ + unsigned char m_; + +public: + explicit CONSTCD11 month(unsigned m) NOEXCEPT; + + CONSTCD14 month& operator++() NOEXCEPT; + CONSTCD14 month operator++(int) NOEXCEPT; + CONSTCD14 month& operator--() NOEXCEPT; + CONSTCD14 month operator--(int) NOEXCEPT; + + CONSTCD14 month& operator+=(const months& m) NOEXCEPT; + CONSTCD14 month& operator-=(const months& m) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator< (const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator> (const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month& x, const month& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month& x, const month& y) NOEXCEPT; + +CONSTCD14 month operator+(const month& x, const months& y) NOEXCEPT; +CONSTCD14 month operator+(const months& x, const month& y) NOEXCEPT; +CONSTCD14 month operator-(const month& x, const months& y) NOEXCEPT; +CONSTCD14 months operator-(const month& x, const month& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month& m); + +// year + +class year +{ + short y_; + +public: + explicit CONSTCD11 year(int y) NOEXCEPT; + + CONSTCD14 year& operator++() NOEXCEPT; + CONSTCD14 year operator++(int) NOEXCEPT; + CONSTCD14 year& operator--() NOEXCEPT; + CONSTCD14 year operator--(int) NOEXCEPT; + + CONSTCD14 year& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 bool is_leap() const NOEXCEPT; + + CONSTCD11 explicit operator int() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + + static CONSTCD11 year min() NOEXCEPT; + static CONSTCD11 year max() NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator< (const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator> (const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year& x, const year& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year& x, const year& y) NOEXCEPT; + +CONSTCD11 year operator+(const year& x, const years& y) NOEXCEPT; +CONSTCD11 year operator+(const years& x, const year& y) NOEXCEPT; +CONSTCD11 year operator-(const year& x, const years& y) NOEXCEPT; +CONSTCD11 years operator-(const year& x, const year& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year& y); + +// weekday + +class weekday +{ + unsigned char wd_; +public: + explicit CONSTCD11 weekday(unsigned wd) NOEXCEPT; + explicit weekday(int) = delete; + CONSTCD11 weekday(const sys_days& dp) NOEXCEPT; + CONSTCD11 explicit weekday(const local_days& dp) NOEXCEPT; + + CONSTCD14 weekday& operator++() NOEXCEPT; + CONSTCD14 weekday operator++(int) NOEXCEPT; + CONSTCD14 weekday& operator--() NOEXCEPT; + CONSTCD14 weekday operator--(int) NOEXCEPT; + + CONSTCD14 weekday& operator+=(const days& d) NOEXCEPT; + CONSTCD14 weekday& operator-=(const days& d) NOEXCEPT; + + CONSTCD11 explicit operator unsigned() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + + CONSTCD11 weekday_indexed operator[](unsigned index) const NOEXCEPT; + CONSTCD11 weekday_last operator[](last_spec) const NOEXCEPT; + +private: + static CONSTCD11 unsigned char weekday_from_days(int z) NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday& x, const weekday& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday& x, const weekday& y) NOEXCEPT; + +CONSTCD14 weekday operator+(const weekday& x, const days& y) NOEXCEPT; +CONSTCD14 weekday operator+(const days& x, const weekday& y) NOEXCEPT; +CONSTCD14 weekday operator-(const weekday& x, const days& y) NOEXCEPT; +CONSTCD14 days operator-(const weekday& x, const weekday& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday& wd); + +// weekday_indexed + +class weekday_indexed +{ + unsigned char wd_ : 4; + unsigned char index_ : 4; + +public: + CONSTCD11 weekday_indexed(const julian::weekday& wd, unsigned index) NOEXCEPT; + + CONSTCD11 julian::weekday weekday() const NOEXCEPT; + CONSTCD11 unsigned index() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_indexed& wdi); + +// weekday_last + +class weekday_last +{ + julian::weekday wd_; + +public: + explicit CONSTCD11 weekday_last(const julian::weekday& wd) NOEXCEPT; + + CONSTCD11 julian::weekday weekday() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT; +CONSTCD11 bool operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_last& wdl); + +// year_month + +class year_month +{ + julian::year y_; + julian::month m_; + +public: + CONSTCD11 year_month(const julian::year& y, const julian::month& m) NOEXCEPT; + + CONSTCD11 julian::year year() const NOEXCEPT; + CONSTCD11 julian::month month() const NOEXCEPT; + + CONSTCD14 year_month& operator+=(const months& dm) NOEXCEPT; + CONSTCD14 year_month& operator-=(const months& dm) NOEXCEPT; + CONSTCD14 year_month& operator+=(const years& dy) NOEXCEPT; + CONSTCD14 year_month& operator-=(const years& dy) NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator< (const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator> (const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year_month& x, const year_month& y) NOEXCEPT; + +CONSTCD14 year_month operator+(const year_month& ym, const months& dm) NOEXCEPT; +CONSTCD14 year_month operator+(const months& dm, const year_month& ym) NOEXCEPT; +CONSTCD14 year_month operator-(const year_month& ym, const months& dm) NOEXCEPT; + +CONSTCD11 months operator-(const year_month& x, const year_month& y) NOEXCEPT; +CONSTCD11 year_month operator+(const year_month& ym, const years& dy) NOEXCEPT; +CONSTCD11 year_month operator+(const years& dy, const year_month& ym) NOEXCEPT; +CONSTCD11 year_month operator-(const year_month& ym, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month& ym); + +// month_day + +class month_day +{ + julian::month m_; + julian::day d_; + +public: + CONSTCD11 month_day(const julian::month& m, const julian::day& d) NOEXCEPT; + + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::day day() const NOEXCEPT; + + CONSTCD14 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator< (const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator> (const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month_day& x, const month_day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month_day& x, const month_day& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day& md); + +// month_day_last + +class month_day_last +{ + julian::month m_; + +public: + CONSTCD11 explicit month_day_last(const julian::month& m) NOEXCEPT; + + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator< (const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator> (const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT; +CONSTCD11 bool operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day_last& mdl); + +// month_weekday + +class month_weekday +{ + julian::month m_; + julian::weekday_indexed wdi_; +public: + CONSTCD11 month_weekday(const julian::month& m, + const julian::weekday_indexed& wdi) NOEXCEPT; + + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::weekday_indexed weekday_indexed() const NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT; +CONSTCD11 bool operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday& mwd); + +// month_weekday_last + +class month_weekday_last +{ + julian::month m_; + julian::weekday_last wdl_; + +public: + CONSTCD11 month_weekday_last(const julian::month& m, + const julian::weekday_last& wd) NOEXCEPT; + + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::weekday_last weekday_last() const NOEXCEPT; + + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday_last& mwdl); + +// class year_month_day + +class year_month_day +{ + julian::year y_; + julian::month m_; + julian::day d_; + +public: + CONSTCD11 year_month_day(const julian::year& y, const julian::month& m, + const julian::day& d) NOEXCEPT; + CONSTCD14 year_month_day(const year_month_day_last& ymdl) NOEXCEPT; + + CONSTCD14 year_month_day(sys_days dp) NOEXCEPT; + CONSTCD14 explicit year_month_day(local_days dp) NOEXCEPT; + + CONSTCD14 year_month_day& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_day& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 julian::year year() const NOEXCEPT; + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::day day() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD14 bool ok() const NOEXCEPT; + +private: + static CONSTCD14 year_month_day from_days(days dp) NOEXCEPT; + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 bool operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator< (const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator> (const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT; +CONSTCD11 bool operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT; + +CONSTCD14 year_month_day operator+(const year_month_day& ymd, const months& dm) NOEXCEPT; +CONSTCD14 year_month_day operator+(const months& dm, const year_month_day& ymd) NOEXCEPT; +CONSTCD14 year_month_day operator-(const year_month_day& ymd, const months& dm) NOEXCEPT; +CONSTCD11 year_month_day operator+(const year_month_day& ymd, const years& dy) NOEXCEPT; +CONSTCD11 year_month_day operator+(const years& dy, const year_month_day& ymd) NOEXCEPT; +CONSTCD11 year_month_day operator-(const year_month_day& ymd, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day& ymd); + +// year_month_day_last + +class year_month_day_last +{ + julian::year y_; + julian::month_day_last mdl_; + +public: + CONSTCD11 year_month_day_last(const julian::year& y, + const julian::month_day_last& mdl) NOEXCEPT; + + CONSTCD14 year_month_day_last& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day_last& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_day_last& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_day_last& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 julian::year year() const NOEXCEPT; + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::month_day_last month_day_last() const NOEXCEPT; + CONSTCD14 julian::day day() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator< (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator> (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; +CONSTCD11 + bool operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT; + +CONSTCD14 +year_month_day_last +operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_day_last +operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day_last& ymdl); + +// year_month_weekday + +class year_month_weekday +{ + julian::year y_; + julian::month m_; + julian::weekday_indexed wdi_; + +public: + CONSTCD11 year_month_weekday(const julian::year& y, const julian::month& m, + const julian::weekday_indexed& wdi) NOEXCEPT; + CONSTCD14 year_month_weekday(const sys_days& dp) NOEXCEPT; + CONSTCD14 explicit year_month_weekday(const local_days& dp) NOEXCEPT; + + CONSTCD14 year_month_weekday& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_weekday& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 julian::year year() const NOEXCEPT; + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::weekday weekday() const NOEXCEPT; + CONSTCD11 unsigned index() const NOEXCEPT; + CONSTCD11 julian::weekday_indexed weekday_indexed() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD14 bool ok() const NOEXCEPT; + +private: + static CONSTCD14 year_month_weekday from_days(days dp) NOEXCEPT; + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 + bool operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT; +CONSTCD11 + bool operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT; + +CONSTCD14 +year_month_weekday +operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_weekday +operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday& ymwdi); + +// year_month_weekday_last + +class year_month_weekday_last +{ + julian::year y_; + julian::month m_; + julian::weekday_last wdl_; + +public: + CONSTCD11 year_month_weekday_last(const julian::year& y, const julian::month& m, + const julian::weekday_last& wdl) NOEXCEPT; + + CONSTCD14 year_month_weekday_last& operator+=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator-=(const months& m) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator+=(const years& y) NOEXCEPT; + CONSTCD14 year_month_weekday_last& operator-=(const years& y) NOEXCEPT; + + CONSTCD11 julian::year year() const NOEXCEPT; + CONSTCD11 julian::month month() const NOEXCEPT; + CONSTCD11 julian::weekday weekday() const NOEXCEPT; + CONSTCD11 julian::weekday_last weekday_last() const NOEXCEPT; + + CONSTCD14 operator sys_days() const NOEXCEPT; + CONSTCD14 explicit operator local_days() const NOEXCEPT; + CONSTCD11 bool ok() const NOEXCEPT; + +private: + CONSTCD14 days to_days() const NOEXCEPT; +}; + +CONSTCD11 +bool +operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT; + +CONSTCD11 +bool +operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT; + +CONSTCD14 +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT; + +CONSTCD11 +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday_last& ymwdl); + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +inline namespace literals +{ + +CONSTCD11 julian::day operator "" _d(unsigned long long d) NOEXCEPT; +CONSTCD11 julian::year operator "" _y(unsigned long long y) NOEXCEPT; + +// CONSTDATA julian::month jan{1}; +// CONSTDATA julian::month feb{2}; +// CONSTDATA julian::month mar{3}; +// CONSTDATA julian::month apr{4}; +// CONSTDATA julian::month may{5}; +// CONSTDATA julian::month jun{6}; +// CONSTDATA julian::month jul{7}; +// CONSTDATA julian::month aug{8}; +// CONSTDATA julian::month sep{9}; +// CONSTDATA julian::month oct{10}; +// CONSTDATA julian::month nov{11}; +// CONSTDATA julian::month dec{12}; + +} // inline namespace literals +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + +//----------------+ +// Implementation | +//----------------+ + +// day + +CONSTCD11 inline day::day(unsigned d) NOEXCEPT : d_(static_cast(d)) {} +CONSTCD14 inline day& day::operator++() NOEXCEPT {++d_; return *this;} +CONSTCD14 inline day day::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline day& day::operator--() NOEXCEPT {--d_; return *this;} +CONSTCD14 inline day day::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} +CONSTCD14 inline day& day::operator+=(const days& d) NOEXCEPT {*this = *this + d; return *this;} +CONSTCD14 inline day& day::operator-=(const days& d) NOEXCEPT {*this = *this - d; return *this;} +CONSTCD11 inline day::operator unsigned() const NOEXCEPT {return d_;} +CONSTCD11 inline bool day::ok() const NOEXCEPT {return 1 <= d_ && d_ <= 31;} + +CONSTCD11 +inline +bool +operator==(const day& x, const day& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const day& x, const day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const day& x, const day& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const day& x, const day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const day& x, const day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const day& x, const day& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD11 +inline +days +operator-(const day& x, const day& y) NOEXCEPT +{ + return days{static_cast(static_cast(x) + - static_cast(y))}; +} + +CONSTCD11 +inline +day +operator+(const day& x, const days& y) NOEXCEPT +{ + return day{static_cast(x) + static_cast(y.count())}; +} + +CONSTCD11 +inline +day +operator+(const days& x, const day& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD11 +inline +day +operator-(const day& x, const days& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const day& d) +{ + date::detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + os.width(2); + os << static_cast(d); + return os; +} + +// month + +CONSTCD11 inline month::month(unsigned m) NOEXCEPT : m_(static_cast(m)) {} +CONSTCD14 inline month& month::operator++() NOEXCEPT {if (++m_ == 13) m_ = 1; return *this;} +CONSTCD14 inline month month::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline month& month::operator--() NOEXCEPT {if (--m_ == 0) m_ = 12; return *this;} +CONSTCD14 inline month month::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} + +CONSTCD14 +inline +month& +month::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +month& +month::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD11 inline month::operator unsigned() const NOEXCEPT {return m_;} +CONSTCD11 inline bool month::ok() const NOEXCEPT {return 1 <= m_ && m_ <= 12;} + +CONSTCD11 +inline +bool +operator==(const month& x, const month& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const month& x, const month& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month& x, const month& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const month& x, const month& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month& x, const month& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month& x, const month& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD14 +inline +months +operator-(const month& x, const month& y) NOEXCEPT +{ + auto const d = static_cast(x) - static_cast(y); + return months(d <= 11 ? d : d + 12); +} + +CONSTCD14 +inline +month +operator+(const month& x, const months& y) NOEXCEPT +{ + auto const mu = static_cast(static_cast(x)) - 1 + y.count(); + auto const yr = (mu >= 0 ? mu : mu-11) / 12; + return month{static_cast(mu - yr * 12 + 1)}; +} + +CONSTCD14 +inline +month +operator+(const months& x, const month& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD14 +inline +month +operator-(const month& x, const months& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month& m) +{ + switch (static_cast(m)) + { + case 1: + os << "Jan"; + break; + case 2: + os << "Feb"; + break; + case 3: + os << "Mar"; + break; + case 4: + os << "Apr"; + break; + case 5: + os << "May"; + break; + case 6: + os << "Jun"; + break; + case 7: + os << "Jul"; + break; + case 8: + os << "Aug"; + break; + case 9: + os << "Sep"; + break; + case 10: + os << "Oct"; + break; + case 11: + os << "Nov"; + break; + case 12: + os << "Dec"; + break; + default: + os << static_cast(m) << " is not a valid month"; + break; + } + return os; +} + +// year + +CONSTCD11 inline year::year(int y) NOEXCEPT : y_(static_cast(y)) {} +CONSTCD14 inline year& year::operator++() NOEXCEPT {++y_; return *this;} +CONSTCD14 inline year year::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline year& year::operator--() NOEXCEPT {--y_; return *this;} +CONSTCD14 inline year year::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} +CONSTCD14 inline year& year::operator+=(const years& y) NOEXCEPT {*this = *this + y; return *this;} +CONSTCD14 inline year& year::operator-=(const years& y) NOEXCEPT {*this = *this - y; return *this;} + +CONSTCD11 +inline +bool +year::is_leap() const NOEXCEPT +{ + return y_ % 4 == 0; +} + +CONSTCD11 inline year::operator int() const NOEXCEPT {return y_;} +CONSTCD11 inline bool year::ok() const NOEXCEPT {return true;} + +CONSTCD11 +inline +year +year::min() NOEXCEPT +{ + return year{std::numeric_limits::min()}; +} + +CONSTCD11 +inline +year +year::max() NOEXCEPT +{ + return year{std::numeric_limits::max()}; +} + +CONSTCD11 +inline +bool +operator==(const year& x, const year& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const year& x, const year& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year& x, const year& y) NOEXCEPT +{ + return static_cast(x) < static_cast(y); +} + +CONSTCD11 +inline +bool +operator>(const year& x, const year& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year& x, const year& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year& x, const year& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD11 +inline +years +operator-(const year& x, const year& y) NOEXCEPT +{ + return years{static_cast(x) - static_cast(y)}; +} + +CONSTCD11 +inline +year +operator+(const year& x, const years& y) NOEXCEPT +{ + return year{static_cast(x) + y.count()}; +} + +CONSTCD11 +inline +year +operator+(const years& x, const year& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD11 +inline +year +operator-(const year& x, const years& y) NOEXCEPT +{ + return year{static_cast(x) - y.count()}; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year& y) +{ + date::detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::internal); + os.width(4 + (y < year{0})); + os << static_cast(y); + return os; +} + +// weekday + +CONSTCD11 +inline +unsigned char +weekday::weekday_from_days(int z) NOEXCEPT +{ + return static_cast(static_cast( + z >= -4 ? (z+4) % 7 : (z+5) % 7 + 6)); +} + +CONSTCD11 +inline +weekday::weekday(unsigned wd) NOEXCEPT + : wd_(static_cast(wd)) + {} + +CONSTCD11 +inline +weekday::weekday(const sys_days& dp) NOEXCEPT + : wd_(weekday_from_days(dp.time_since_epoch().count())) + {} + +CONSTCD11 +inline +weekday::weekday(const local_days& dp) NOEXCEPT + : wd_(weekday_from_days(dp.time_since_epoch().count())) + {} + +CONSTCD14 inline weekday& weekday::operator++() NOEXCEPT {if (++wd_ == 7) wd_ = 0; return *this;} +CONSTCD14 inline weekday weekday::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;} +CONSTCD14 inline weekday& weekday::operator--() NOEXCEPT {if (wd_-- == 0) wd_ = 6; return *this;} +CONSTCD14 inline weekday weekday::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;} + +CONSTCD14 +inline +weekday& +weekday::operator+=(const days& d) NOEXCEPT +{ + *this = *this + d; + return *this; +} + +CONSTCD14 +inline +weekday& +weekday::operator-=(const days& d) NOEXCEPT +{ + *this = *this - d; + return *this; +} + +CONSTCD11 +inline +weekday::operator unsigned() const NOEXCEPT +{ + return static_cast(wd_); +} + +CONSTCD11 inline bool weekday::ok() const NOEXCEPT {return wd_ <= 6;} + +CONSTCD11 +inline +bool +operator==(const weekday& x, const weekday& y) NOEXCEPT +{ + return static_cast(x) == static_cast(y); +} + +CONSTCD11 +inline +bool +operator!=(const weekday& x, const weekday& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD14 +inline +days +operator-(const weekday& x, const weekday& y) NOEXCEPT +{ + auto const diff = static_cast(x) - static_cast(y); + return days{diff <= 6 ? diff : diff + 7}; +} + +CONSTCD14 +inline +weekday +operator+(const weekday& x, const days& y) NOEXCEPT +{ + auto const wdu = static_cast(static_cast(x)) + y.count(); + auto const wk = (wdu >= 0 ? wdu : wdu-6) / 7; + return weekday{static_cast(wdu - wk * 7)}; +} + +CONSTCD14 +inline +weekday +operator+(const days& x, const weekday& y) NOEXCEPT +{ + return y + x; +} + +CONSTCD14 +inline +weekday +operator-(const weekday& x, const days& y) NOEXCEPT +{ + return x + -y; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday& wd) +{ + switch (static_cast(wd)) + { + case 0: + os << "Sun"; + break; + case 1: + os << "Mon"; + break; + case 2: + os << "Tue"; + break; + case 3: + os << "Wed"; + break; + case 4: + os << "Thu"; + break; + case 5: + os << "Fri"; + break; + case 6: + os << "Sat"; + break; + default: + os << static_cast(wd) << " is not a valid weekday"; + break; + } + return os; +} + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +inline namespace literals +{ + +CONSTCD11 +inline +julian::day +operator "" _d(unsigned long long d) NOEXCEPT +{ + return julian::day{static_cast(d)}; +} + +CONSTCD11 +inline +julian::year +operator "" _y(unsigned long long y) NOEXCEPT +{ + return julian::year(static_cast(y)); +} +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + +CONSTDATA julian::last_spec last{}; + +CONSTDATA julian::month jan{1}; +CONSTDATA julian::month feb{2}; +CONSTDATA julian::month mar{3}; +CONSTDATA julian::month apr{4}; +CONSTDATA julian::month may{5}; +CONSTDATA julian::month jun{6}; +CONSTDATA julian::month jul{7}; +CONSTDATA julian::month aug{8}; +CONSTDATA julian::month sep{9}; +CONSTDATA julian::month oct{10}; +CONSTDATA julian::month nov{11}; +CONSTDATA julian::month dec{12}; + +CONSTDATA julian::weekday sun{0u}; +CONSTDATA julian::weekday mon{1u}; +CONSTDATA julian::weekday tue{2u}; +CONSTDATA julian::weekday wed{3u}; +CONSTDATA julian::weekday thu{4u}; +CONSTDATA julian::weekday fri{5u}; +CONSTDATA julian::weekday sat{6u}; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +} // inline namespace literals +#endif + +// weekday_indexed + +CONSTCD11 +inline +weekday +weekday_indexed::weekday() const NOEXCEPT +{ + return julian::weekday{static_cast(wd_)}; +} + +CONSTCD11 inline unsigned weekday_indexed::index() const NOEXCEPT {return index_;} + +CONSTCD11 +inline +bool +weekday_indexed::ok() const NOEXCEPT +{ + return weekday().ok() && 1 <= index_ && index_ <= 5; +} + +CONSTCD11 +inline +weekday_indexed::weekday_indexed(const julian::weekday& wd, unsigned index) NOEXCEPT + : wd_(static_cast(static_cast(wd))) + , index_(static_cast(index)) + {} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_indexed& wdi) +{ + return os << wdi.weekday() << '[' << wdi.index() << ']'; +} + +CONSTCD11 +inline +weekday_indexed +weekday::operator[](unsigned index) const NOEXCEPT +{ + return {*this, index}; +} + +CONSTCD11 +inline +bool +operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT +{ + return x.weekday() == y.weekday() && x.index() == y.index(); +} + +CONSTCD11 +inline +bool +operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT +{ + return !(x == y); +} + +// weekday_last + +CONSTCD11 inline julian::weekday weekday_last::weekday() const NOEXCEPT {return wd_;} +CONSTCD11 inline bool weekday_last::ok() const NOEXCEPT {return wd_.ok();} +CONSTCD11 inline weekday_last::weekday_last(const julian::weekday& wd) NOEXCEPT : wd_(wd) {} + +CONSTCD11 +inline +bool +operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT +{ + return x.weekday() == y.weekday(); +} + +CONSTCD11 +inline +bool +operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const weekday_last& wdl) +{ + return os << wdl.weekday() << "[last]"; +} + +CONSTCD11 +inline +weekday_last +weekday::operator[](last_spec) const NOEXCEPT +{ + return weekday_last{*this}; +} + +// year_month + +CONSTCD11 +inline +year_month::year_month(const julian::year& y, const julian::month& m) NOEXCEPT + : y_(y) + , m_(m) + {} + +CONSTCD11 inline year year_month::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month::month() const NOEXCEPT {return m_;} +CONSTCD11 inline bool year_month::ok() const NOEXCEPT {return y_.ok() && m_.ok();} + +CONSTCD14 +inline +year_month& +year_month::operator+=(const months& dm) NOEXCEPT +{ + *this = *this + dm; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator-=(const months& dm) NOEXCEPT +{ + *this = *this - dm; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator+=(const years& dy) NOEXCEPT +{ + *this = *this + dy; + return *this; +} + +CONSTCD14 +inline +year_month& +year_month::operator-=(const years& dy) NOEXCEPT +{ + *this = *this - dy; + return *this; +} + +CONSTCD11 +inline +bool +operator==(const year_month& x, const year_month& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month& x, const year_month& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month() < y.month())); +} + +CONSTCD11 +inline +bool +operator>(const year_month& x, const year_month& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month& x, const year_month& y) NOEXCEPT +{ + return !(x < y); +} + +CONSTCD14 +inline +year_month +operator+(const year_month& ym, const months& dm) NOEXCEPT +{ + auto dmi = static_cast(static_cast(ym.month())) - 1 + dm.count(); + auto dy = (dmi >= 0 ? dmi : dmi-11) / 12; + dmi = dmi - dy * 12 + 1; + return (ym.year() + years(dy)) / month(static_cast(dmi)); +} + +CONSTCD14 +inline +year_month +operator+(const months& dm, const year_month& ym) NOEXCEPT +{ + return ym + dm; +} + +CONSTCD14 +inline +year_month +operator-(const year_month& ym, const months& dm) NOEXCEPT +{ + return ym + -dm; +} + +CONSTCD11 +inline +months +operator-(const year_month& x, const year_month& y) NOEXCEPT +{ + return (x.year() - y.year()) + + months(static_cast(x.month()) - static_cast(y.month())); +} + +CONSTCD11 +inline +year_month +operator+(const year_month& ym, const years& dy) NOEXCEPT +{ + return (ym.year() + dy) / ym.month(); +} + +CONSTCD11 +inline +year_month +operator+(const years& dy, const year_month& ym) NOEXCEPT +{ + return ym + dy; +} + +CONSTCD11 +inline +year_month +operator-(const year_month& ym, const years& dy) NOEXCEPT +{ + return ym + -dy; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month& ym) +{ + return os << ym.year() << '/' << ym.month(); +} + +// month_day + +CONSTCD11 +inline +month_day::month_day(const julian::month& m, const julian::day& d) NOEXCEPT + : m_(m) + , d_(d) + {} + +CONSTCD11 inline julian::month month_day::month() const NOEXCEPT {return m_;} +CONSTCD11 inline julian::day month_day::day() const NOEXCEPT {return d_;} + +CONSTCD14 +inline +bool +month_day::ok() const NOEXCEPT +{ + CONSTDATA julian::day d[] = + {31_d, 29_d, 31_d, 30_d, 31_d, 30_d, 31_d, 31_d, 30_d, 31_d, 30_d, 31_d}; + return m_.ok() && 1_d <= d_ && d_ <= d[static_cast(m_)-1]; +} + +CONSTCD11 +inline +bool +operator==(const month_day& x, const month_day& y) NOEXCEPT +{ + return x.month() == y.month() && x.day() == y.day(); +} + +CONSTCD11 +inline +bool +operator!=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month_day& x, const month_day& y) NOEXCEPT +{ + return x.month() < y.month() ? true + : (x.month() > y.month() ? false + : (x.day() < y.day())); +} + +CONSTCD11 +inline +bool +operator>(const month_day& x, const month_day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month_day& x, const month_day& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day& md) +{ + return os << md.month() << '/' << md.day(); +} + +// month_day_last + +CONSTCD11 inline month month_day_last::month() const NOEXCEPT {return m_;} +CONSTCD11 inline bool month_day_last::ok() const NOEXCEPT {return m_.ok();} +CONSTCD11 inline month_day_last::month_day_last(const julian::month& m) NOEXCEPT : m_(m) {} + +CONSTCD11 +inline +bool +operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return x.month() == y.month(); +} + +CONSTCD11 +inline +bool +operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return x.month() < y.month(); +} + +CONSTCD11 +inline +bool +operator>(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_day_last& mdl) +{ + return os << mdl.month() << "/last"; +} + +// month_weekday + +CONSTCD11 +inline +month_weekday::month_weekday(const julian::month& m, + const julian::weekday_indexed& wdi) NOEXCEPT + : m_(m) + , wdi_(wdi) + {} + +CONSTCD11 inline month month_weekday::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday_indexed +month_weekday::weekday_indexed() const NOEXCEPT +{ + return wdi_; +} + +CONSTCD11 +inline +bool +month_weekday::ok() const NOEXCEPT +{ + return m_.ok() && wdi_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT +{ + return x.month() == y.month() && x.weekday_indexed() == y.weekday_indexed(); +} + +CONSTCD11 +inline +bool +operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday& mwd) +{ + return os << mwd.month() << '/' << mwd.weekday_indexed(); +} + +// month_weekday_last + +CONSTCD11 +inline +month_weekday_last::month_weekday_last(const julian::month& m, + const julian::weekday_last& wdl) NOEXCEPT + : m_(m) + , wdl_(wdl) + {} + +CONSTCD11 inline month month_weekday_last::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday_last +month_weekday_last::weekday_last() const NOEXCEPT +{ + return wdl_; +} + +CONSTCD11 +inline +bool +month_weekday_last::ok() const NOEXCEPT +{ + return m_.ok() && wdl_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT +{ + return x.month() == y.month() && x.weekday_last() == y.weekday_last(); +} + +CONSTCD11 +inline +bool +operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const month_weekday_last& mwdl) +{ + return os << mwdl.month() << '/' << mwdl.weekday_last(); +} + +// year_month_day_last + +CONSTCD11 +inline +year_month_day_last::year_month_day_last(const julian::year& y, + const julian::month_day_last& mdl) NOEXCEPT + : y_(y) + , mdl_(mdl) + {} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_day_last& +year_month_day_last::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_day_last::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_day_last::month() const NOEXCEPT {return mdl_.month();} + +CONSTCD11 +inline +month_day_last +year_month_day_last::month_day_last() const NOEXCEPT +{ + return mdl_; +} + +CONSTCD14 +inline +day +year_month_day_last::day() const NOEXCEPT +{ + CONSTDATA julian::day d[] = + {31_d, 28_d, 31_d, 30_d, 31_d, 30_d, 31_d, 31_d, 30_d, 31_d, 30_d, 31_d}; + return month() != feb || !y_.is_leap() ? d[static_cast(month())-1] : 29_d; +} + +CONSTCD14 +inline +year_month_day_last::operator sys_days() const NOEXCEPT +{ + return sys_days(year()/month()/day()); +} + +CONSTCD14 +inline +year_month_day_last::operator local_days() const NOEXCEPT +{ + return local_days(year()/month()/day()); +} + +CONSTCD11 +inline +bool +year_month_day_last::ok() const NOEXCEPT +{ + return y_.ok() && mdl_.ok(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return x.year() == y.year() && x.month_day_last() == y.month_day_last(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month_day_last() < y.month_day_last())); +} + +CONSTCD11 +inline +bool +operator>(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day_last& ymdl) +{ + return os << ymdl.year() << '/' << ymdl.month_day_last(); +} + +CONSTCD14 +inline +year_month_day_last +operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT +{ + return (ymdl.year() / ymdl.month() + dm) / last; +} + +CONSTCD14 +inline +year_month_day_last +operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT +{ + return ymdl + dm; +} + +CONSTCD14 +inline +year_month_day_last +operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT +{ + return ymdl + (-dm); +} + +CONSTCD11 +inline +year_month_day_last +operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT +{ + return {ymdl.year()+dy, ymdl.month_day_last()}; +} + +CONSTCD11 +inline +year_month_day_last +operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT +{ + return ymdl + dy; +} + +CONSTCD11 +inline +year_month_day_last +operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT +{ + return ymdl + (-dy); +} + +// year_month_day + +CONSTCD11 +inline +year_month_day::year_month_day(const julian::year& y, const julian::month& m, + const julian::day& d) NOEXCEPT + : y_(y) + , m_(m) + , d_(d) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(const year_month_day_last& ymdl) NOEXCEPT + : y_(ymdl.year()) + , m_(ymdl.month()) + , d_(ymdl.day()) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(sys_days dp) NOEXCEPT + : year_month_day(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_day::year_month_day(local_days dp) NOEXCEPT + : year_month_day(from_days(dp.time_since_epoch())) + {} + +CONSTCD11 inline year year_month_day::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_day::month() const NOEXCEPT {return m_;} +CONSTCD11 inline day year_month_day::day() const NOEXCEPT {return d_;} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_day& +year_month_day::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD14 +inline +days +year_month_day::to_days() const NOEXCEPT +{ + static_assert(std::numeric_limits::digits >= 18, + "This algorithm has not been ported to a 16 bit unsigned integer"); + static_assert(std::numeric_limits::digits >= 20, + "This algorithm has not been ported to a 16 bit signed integer"); + auto const y = static_cast(y_) - (m_ <= feb); + auto const m = static_cast(m_); + auto const d = static_cast(d_); + auto const era = (y >= 0 ? y : y-3) / 4; + auto const yoe = static_cast(y - era * 4); // [0, 3] + auto const doy = (153*(m > 2 ? m-3 : m+9) + 2)/5 + d-1; // [0, 365] + auto const doe = yoe * 365 + doy; // [0, 1460] + return days{era * 1461 + static_cast(doe) - 719470}; +} + +CONSTCD14 +inline +year_month_day::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_day::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD14 +inline +bool +year_month_day::ok() const NOEXCEPT +{ + if (!(y_.ok() && m_.ok())) + return false; + return 1_d <= d_ && d_ <= (y_/m_/last).day(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && x.day() == y.day(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(x == y); +} + +CONSTCD11 +inline +bool +operator<(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return x.year() < y.year() ? true + : (x.year() > y.year() ? false + : (x.month() < y.month() ? true + : (x.month() > y.month() ? false + : (x.day() < y.day())))); +} + +CONSTCD11 +inline +bool +operator>(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return y < x; +} + +CONSTCD11 +inline +bool +operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(y < x); +} + +CONSTCD11 +inline +bool +operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT +{ + return !(x < y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_day& ymd) +{ + date::detail::save_stream _(os); + os.fill('0'); + os.flags(std::ios::dec | std::ios::right); + os << ymd.year() << '-'; + os.width(2); + os << static_cast(ymd.month()) << '-'; + os << ymd.day(); + return os; +} + +CONSTCD14 +inline +year_month_day +year_month_day::from_days(days dp) NOEXCEPT +{ + static_assert(std::numeric_limits::digits >= 18, + "This algorithm has not been ported to a 16 bit unsigned integer"); + static_assert(std::numeric_limits::digits >= 20, + "This algorithm has not been ported to a 16 bit signed integer"); + auto const z = dp.count() + 719470; + auto const era = (z >= 0 ? z : z - 1460) / 1461; + auto const doe = static_cast(z - era * 1461); // [0, 1460] + auto const yoe = (doe - doe/1460) / 365; // [0, 3] + auto const y = static_cast(yoe) + era * 4; + auto const doy = doe - 365*yoe; // [0, 365] + auto const mp = (5*doy + 2)/153; // [0, 11] + auto const d = doy - (153*mp+2)/5 + 1; // [1, 31] + auto const m = mp < 10 ? mp+3 : mp-9; // [1, 12] + return year_month_day{julian::year{y + (m <= 2)}, julian::month(m), julian::day(d)}; +} + +CONSTCD14 +inline +year_month_day +operator+(const year_month_day& ymd, const months& dm) NOEXCEPT +{ + return (ymd.year() / ymd.month() + dm) / ymd.day(); +} + +CONSTCD14 +inline +year_month_day +operator+(const months& dm, const year_month_day& ymd) NOEXCEPT +{ + return ymd + dm; +} + +CONSTCD14 +inline +year_month_day +operator-(const year_month_day& ymd, const months& dm) NOEXCEPT +{ + return ymd + (-dm); +} + +CONSTCD11 +inline +year_month_day +operator+(const year_month_day& ymd, const years& dy) NOEXCEPT +{ + return (ymd.year() + dy) / ymd.month() / ymd.day(); +} + +CONSTCD11 +inline +year_month_day +operator+(const years& dy, const year_month_day& ymd) NOEXCEPT +{ + return ymd + dy; +} + +CONSTCD11 +inline +year_month_day +operator-(const year_month_day& ymd, const years& dy) NOEXCEPT +{ + return ymd + (-dy); +} + +// year_month_weekday + +CONSTCD11 +inline +year_month_weekday::year_month_weekday(const julian::year& y, const julian::month& m, + const julian::weekday_indexed& wdi) + NOEXCEPT + : y_(y) + , m_(m) + , wdi_(wdi) + {} + +CONSTCD14 +inline +year_month_weekday::year_month_weekday(const sys_days& dp) NOEXCEPT + : year_month_weekday(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_weekday::year_month_weekday(const local_days& dp) NOEXCEPT + : year_month_weekday(from_days(dp.time_since_epoch())) + {} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_weekday& +year_month_weekday::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_weekday::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_weekday::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday +year_month_weekday::weekday() const NOEXCEPT +{ + return wdi_.weekday(); +} + +CONSTCD11 +inline +unsigned +year_month_weekday::index() const NOEXCEPT +{ + return wdi_.index(); +} + +CONSTCD11 +inline +weekday_indexed +year_month_weekday::weekday_indexed() const NOEXCEPT +{ + return wdi_; +} + +CONSTCD14 +inline +year_month_weekday::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_weekday::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD14 +inline +bool +year_month_weekday::ok() const NOEXCEPT +{ + if (!y_.ok() || !m_.ok() || !wdi_.weekday().ok() || wdi_.index() < 1) + return false; + if (wdi_.index() <= 4) + return true; + auto d2 = wdi_.weekday() - julian::weekday(y_/m_/1) + days((wdi_.index()-1)*7 + 1); + return static_cast(d2.count()) <= static_cast((y_/m_/last).day()); +} + +CONSTCD14 +inline +year_month_weekday +year_month_weekday::from_days(days d) NOEXCEPT +{ + sys_days dp{d}; + auto const wd = julian::weekday(dp); + auto const ymd = year_month_day(dp); + return {ymd.year(), ymd.month(), wd[(static_cast(ymd.day())-1)/7+1]}; +} + +CONSTCD14 +inline +days +year_month_weekday::to_days() const NOEXCEPT +{ + auto d = sys_days(y_/m_/1); + return (d + (wdi_.weekday() - julian::weekday(d) + days{(wdi_.index()-1)*7}) + ).time_since_epoch(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && + x.weekday_indexed() == y.weekday_indexed(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday& ymwdi) +{ + return os << ymwdi.year() << '/' << ymwdi.month() + << '/' << ymwdi.weekday_indexed(); +} + +CONSTCD14 +inline +year_month_weekday +operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT +{ + return (ymwd.year() / ymwd.month() + dm) / ymwd.weekday_indexed(); +} + +CONSTCD14 +inline +year_month_weekday +operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT +{ + return ymwd + dm; +} + +CONSTCD14 +inline +year_month_weekday +operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT +{ + return ymwd + (-dm); +} + +CONSTCD11 +inline +year_month_weekday +operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT +{ + return {ymwd.year()+dy, ymwd.month(), ymwd.weekday_indexed()}; +} + +CONSTCD11 +inline +year_month_weekday +operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT +{ + return ymwd + dy; +} + +CONSTCD11 +inline +year_month_weekday +operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT +{ + return ymwd + (-dy); +} + +// year_month_weekday_last + +CONSTCD11 +inline +year_month_weekday_last::year_month_weekday_last(const julian::year& y, + const julian::month& m, + const julian::weekday_last& wdl) NOEXCEPT + : y_(y) + , m_(m) + , wdl_(wdl) + {} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator+=(const months& m) NOEXCEPT +{ + *this = *this + m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator-=(const months& m) NOEXCEPT +{ + *this = *this - m; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator+=(const years& y) NOEXCEPT +{ + *this = *this + y; + return *this; +} + +CONSTCD14 +inline +year_month_weekday_last& +year_month_weekday_last::operator-=(const years& y) NOEXCEPT +{ + *this = *this - y; + return *this; +} + +CONSTCD11 inline year year_month_weekday_last::year() const NOEXCEPT {return y_;} +CONSTCD11 inline month year_month_weekday_last::month() const NOEXCEPT {return m_;} + +CONSTCD11 +inline +weekday +year_month_weekday_last::weekday() const NOEXCEPT +{ + return wdl_.weekday(); +} + +CONSTCD11 +inline +weekday_last +year_month_weekday_last::weekday_last() const NOEXCEPT +{ + return wdl_; +} + +CONSTCD14 +inline +year_month_weekday_last::operator sys_days() const NOEXCEPT +{ + return sys_days{to_days()}; +} + +CONSTCD14 +inline +year_month_weekday_last::operator local_days() const NOEXCEPT +{ + return local_days{to_days()}; +} + +CONSTCD11 +inline +bool +year_month_weekday_last::ok() const NOEXCEPT +{ + return y_.ok() && m_.ok() && wdl_.ok(); +} + +CONSTCD14 +inline +days +year_month_weekday_last::to_days() const NOEXCEPT +{ + auto const d = sys_days(y_/m_/last); + return (d - (julian::weekday{d} - wdl_.weekday())).time_since_epoch(); +} + +CONSTCD11 +inline +bool +operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT +{ + return x.year() == y.year() && x.month() == y.month() && + x.weekday_last() == y.weekday_last(); +} + +CONSTCD11 +inline +bool +operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT +{ + return !(x == y); +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const year_month_weekday_last& ymwdl) +{ + return os << ymwdl.year() << '/' << ymwdl.month() << '/' << ymwdl.weekday_last(); +} + +CONSTCD14 +inline +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT +{ + return (ymwdl.year() / ymwdl.month() + dm) / ymwdl.weekday_last(); +} + +CONSTCD14 +inline +year_month_weekday_last +operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT +{ + return ymwdl + dm; +} + +CONSTCD14 +inline +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT +{ + return ymwdl + (-dm); +} + +CONSTCD11 +inline +year_month_weekday_last +operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT +{ + return {ymwdl.year()+dy, ymwdl.month(), ymwdl.weekday_last()}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT +{ + return ymwdl + dy; +} + +CONSTCD11 +inline +year_month_weekday_last +operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT +{ + return ymwdl + (-dy); +} + +// year_month from operator/() + +CONSTCD11 +inline +year_month +operator/(const year& y, const month& m) NOEXCEPT +{ + return {y, m}; +} + +CONSTCD11 +inline +year_month +operator/(const year& y, int m) NOEXCEPT +{ + return y / month(static_cast(m)); +} + +// month_day from operator/() + +CONSTCD11 +inline +month_day +operator/(const month& m, const day& d) NOEXCEPT +{ + return {m, d}; +} + +CONSTCD11 +inline +month_day +operator/(const day& d, const month& m) NOEXCEPT +{ + return m / d; +} + +CONSTCD11 +inline +month_day +operator/(const month& m, int d) NOEXCEPT +{ + return m / day(static_cast(d)); +} + +CONSTCD11 +inline +month_day +operator/(int m, const day& d) NOEXCEPT +{ + return month(static_cast(m)) / d; +} + +CONSTCD11 inline month_day operator/(const day& d, int m) NOEXCEPT {return m / d;} + +// month_day_last from operator/() + +CONSTCD11 +inline +month_day_last +operator/(const month& m, last_spec) NOEXCEPT +{ + return month_day_last{m}; +} + +CONSTCD11 +inline +month_day_last +operator/(last_spec, const month& m) NOEXCEPT +{ + return m/last; +} + +CONSTCD11 +inline +month_day_last +operator/(int m, last_spec) NOEXCEPT +{ + return month(static_cast(m))/last; +} + +CONSTCD11 +inline +month_day_last +operator/(last_spec, int m) NOEXCEPT +{ + return m/last; +} + +// month_weekday from operator/() + +CONSTCD11 +inline +month_weekday +operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT +{ + return {m, wdi}; +} + +CONSTCD11 +inline +month_weekday +operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT +{ + return m / wdi; +} + +CONSTCD11 +inline +month_weekday +operator/(int m, const weekday_indexed& wdi) NOEXCEPT +{ + return month(static_cast(m)) / wdi; +} + +CONSTCD11 +inline +month_weekday +operator/(const weekday_indexed& wdi, int m) NOEXCEPT +{ + return m / wdi; +} + +// month_weekday_last from operator/() + +CONSTCD11 +inline +month_weekday_last +operator/(const month& m, const weekday_last& wdl) NOEXCEPT +{ + return {m, wdl}; +} + +CONSTCD11 +inline +month_weekday_last +operator/(const weekday_last& wdl, const month& m) NOEXCEPT +{ + return m / wdl; +} + +CONSTCD11 +inline +month_weekday_last +operator/(int m, const weekday_last& wdl) NOEXCEPT +{ + return month(static_cast(m)) / wdl; +} + +CONSTCD11 +inline +month_weekday_last +operator/(const weekday_last& wdl, int m) NOEXCEPT +{ + return m / wdl; +} + +// year_month_day from operator/() + +CONSTCD11 +inline +year_month_day +operator/(const year_month& ym, const day& d) NOEXCEPT +{ + return {ym.year(), ym.month(), d}; +} + +CONSTCD11 +inline +year_month_day +operator/(const year_month& ym, int d) NOEXCEPT +{ + return ym / day(static_cast(d)); +} + +CONSTCD11 +inline +year_month_day +operator/(const year& y, const month_day& md) NOEXCEPT +{ + return y / md.month() / md.day(); +} + +CONSTCD11 +inline +year_month_day +operator/(int y, const month_day& md) NOEXCEPT +{ + return year(y) / md; +} + +CONSTCD11 +inline +year_month_day +operator/(const month_day& md, const year& y) NOEXCEPT +{ + return y / md; +} + +CONSTCD11 +inline +year_month_day +operator/(const month_day& md, int y) NOEXCEPT +{ + return year(y) / md; +} + +// year_month_day_last from operator/() + +CONSTCD11 +inline +year_month_day_last +operator/(const year_month& ym, last_spec) NOEXCEPT +{ + return {ym.year(), month_day_last{ym.month()}}; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const year& y, const month_day_last& mdl) NOEXCEPT +{ + return {y, mdl}; +} + +CONSTCD11 +inline +year_month_day_last +operator/(int y, const month_day_last& mdl) NOEXCEPT +{ + return year(y) / mdl; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const month_day_last& mdl, const year& y) NOEXCEPT +{ + return y / mdl; +} + +CONSTCD11 +inline +year_month_day_last +operator/(const month_day_last& mdl, int y) NOEXCEPT +{ + return year(y) / mdl; +} + +// year_month_weekday from operator/() + +CONSTCD11 +inline +year_month_weekday +operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT +{ + return {ym.year(), ym.month(), wdi}; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const year& y, const month_weekday& mwd) NOEXCEPT +{ + return {y, mwd.month(), mwd.weekday_indexed()}; +} + +CONSTCD11 +inline +year_month_weekday +operator/(int y, const month_weekday& mwd) NOEXCEPT +{ + return year(y) / mwd; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const month_weekday& mwd, const year& y) NOEXCEPT +{ + return y / mwd; +} + +CONSTCD11 +inline +year_month_weekday +operator/(const month_weekday& mwd, int y) NOEXCEPT +{ + return year(y) / mwd; +} + +// year_month_weekday_last from operator/() + +CONSTCD11 +inline +year_month_weekday_last +operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT +{ + return {ym.year(), ym.month(), wdl}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT +{ + return {y, mwdl.month(), mwdl.weekday_last()}; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(int y, const month_weekday_last& mwdl) NOEXCEPT +{ + return year(y) / mwdl; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT +{ + return y / mwdl; +} + +CONSTCD11 +inline +year_month_weekday_last +operator/(const month_weekday_last& mwdl, int y) NOEXCEPT +{ + return year(y) / mwdl; +} + +} // namespace julian + +#endif // JULIAN_H diff --git a/ext/date/tz.cpp b/ext/date/tz.cpp new file mode 100644 index 0000000..e3c4da7 --- /dev/null +++ b/ext/date/tz.cpp @@ -0,0 +1,3120 @@ +// The MIT License (MIT) +// +// Copyright (c) 2015, 2016 Howard Hinnant +// Copyright (c) 2015 Ville Voutilainen +// Copyright (c) 2016 Alexander Kormanovsky +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +#ifdef _WIN32 +// Windows.h will be included directly and indirectly (e.g. by curl). +// We need to define these macros to prevent Windows.h bringing in +// more than we need and do it eearly so Windows.h doesn't get included +// without these macros having been defined. +// min/max macrosinterfere with the C++ versions. +#ifndef NOMINMAX +#define NOMINMAX +#endif +// We don't need all that Windows has to offer. +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif // _WIN32 + +// None of this happens with the MS SDK (at least VS14 which I tested), but: +// Compiling with mingw, we get "error: 'KF_FLAG_DEFAULT' was not declared in this scope." +// and error: 'SHGetKnownFolderPath' was not declared in this scope.". +// It seems when using mingw NTDDI_VERSION is undefined and that +// causes KNOWN_FOLDER_FLAG and the KF_ flags to not get defined. +// So we must define NTDDI_VERSION to get those flags on mingw. +// The docs say though here: +// https://msdn.microsoft.com/en-nz/library/windows/desktop/aa383745(v=vs.85).aspx +// that "If you define NTDDI_VERSION, you must also define _WIN32_WINNT." +// So we declare we require Vista or greater. +#ifdef __MINGW32__ + +#ifndef NTDDI_VERSION +#define NTDDI_VERSION 0x06000000 +#define _WIN32_WINNT _WIN32_WINNT_VISTA +#elif NTDDI_VERSION < 0x06000000 +#warning "If this fails to compile NTDDI_VERSION may be to low. See comments above." +#endif +// But once we define the values above we then get this linker error: +// "tz.cpp:(.rdata$.refptr.FOLDERID_Downloads[.refptr.FOLDERID_Downloads]+0x0): " +// "undefined reference to `FOLDERID_Downloads'" +// which #include cures see: +// https://support.microsoft.com/en-us/kb/130869 +#include +// But with included, the error moves on to: +// error: 'FOLDERID_Downloads' was not declared in this scope +// Which #include cures. +#include + +#endif // __MINGW32__ + +#include +#endif // _WIN32 + +#include "tz_private.h" +#include "ios.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#include +#include +#endif // _WIN32 + +// unistd.h is used on some platforms as part of the the means to get +// the current time zone. On Win32 Windows.h provides a means to do it. +// gcc/mingw supports unistd.h on Win32 but MSVC does not. + +#ifdef _WIN32 +# include // _unlink etc. +# include // CoTaskFree, ShGetKnownFolderPath etc. +# if HAS_REMOTE_API +# include // _mkdir +# include // ShFileOperation etc. +# endif // HAS_REMOTE_API +#else // !WIN32 +# include +# include +# if !USE_SHELL_API +# include +# include +# include +# include +# include +# include +# endif //!USE_SHELL_API +#endif // !WIN32 + + +#if HAS_REMOTE_API +// Note curl includes windows.h so we must include curl AFTER definitions of things +// that effect windows.h such as NOMINMAX. +#include +#endif + +#ifdef _WIN32 +static CONSTDATA char folder_delimiter = '\\'; + +namespace +{ + struct task_mem_deleter + { + void operator()(wchar_t buf[]) + { + if (buf != nullptr) + CoTaskMemFree(buf); + } + }; + using co_task_mem_ptr = std::unique_ptr; +} + +// We might need to know certain locations even if not using the remote API, +// so keep these routines out of that block for now. +static +std::string +get_known_folder(const GUID& folderid) +{ + std::string folder; + PWSTR pfolder = nullptr; + HRESULT hr = SHGetKnownFolderPath(folderid, KF_FLAG_DEFAULT, NULL, &pfolder); + if (SUCCEEDED(hr)) + { + co_task_mem_ptr folder_ptr(pfolder); + folder = std::string(folder_ptr.get(), folder_ptr.get() + wcslen(folder_ptr.get())); + } + return folder; +} + +// Usually something like "c:\Program Files". +static +std::string +get_program_folder() +{ + return get_known_folder(FOLDERID_ProgramFiles); +} + +// Usually something like "c:\Users\username\Downloads". +static +std::string +get_download_folder() +{ + return get_known_folder(FOLDERID_Downloads); +} + +#else // !_WIN32 + +static CONSTDATA char folder_delimiter = '/'; + +static +std::string +expand_path(std::string path) +{ +#if TARGET_OS_IPHONE + return date::iOSUtils::get_tzdata_path(); +#else + ::wordexp_t w{}; + ::wordexp(path.c_str(), &w, 0); + assert(w.we_wordc == 1); + path = w.we_wordv[0]; + ::wordfree(&w); + return path; +#endif +} + +#endif // !_WIN32 + +namespace date +{ +// +---------------------+ +// | Begin Configuration | +// +---------------------+ + +using namespace detail; + +static std::string get_install() +{ +#ifdef _WIN32 + std::string install = get_download_folder(); + install += folder_delimiter; + install += "tzdata"; +#else + std::string install = expand_path("~/Downloads/tzdata"); +#endif + return install; +} + +#ifndef INSTALL + +static const std::string install = get_install(); + +#else // INSTALL + +#define STRINGIZEIMP(x) #x +#define STRINGIZE(x) STRINGIZEIMP(x) + +static const std::string install = STRINGIZE(INSTALL) + + std::string(1, folder_delimiter) + "tzdata"; + +#endif // INSTALL + +static +std::string +get_download_gz_file(const std::string& version) +{ + auto file = install + version + ".tar.gz"; + return file; +} + +static const std::vector files = +{ + "africa", "antarctica", "asia", "australasia", "backward", "etcetera", "europe", + "pacificnew", "northamerica", "southamerica", "systemv", "leapseconds" +}; + +// These can be used to reduce the range of the database to save memory +CONSTDATA auto min_year = date::year::min(); +CONSTDATA auto max_year = date::year::max(); + +CONSTDATA auto min_day = date::jan/1; +CONSTDATA auto max_day = date::dec/31; + +// +-------------------+ +// | End Configuration | +// +-------------------+ + +namespace detail +{ +struct undocumented {explicit undocumented() = default;}; +} + +#ifndef _MSC_VER +static_assert(min_year <= max_year, "Configuration error"); +#endif + +#ifdef TIMEZONE_MAPPING + +namespace // Put types in an anonymous name space. +{ + +// A simple type to manage RAII for key handles and to +// implement the trivial registry interface we need. +// Not intended to be general-purpose. +class reg_key +{ +private: + // Note there is no value documented to be an invalid handle value. + // Not NULL nor INVALID_HANDLE_VALUE. We must rely on is_open. + HKEY m_key = nullptr; + bool m_is_open = false; +public: + ~reg_key() + { + close(); + } + + reg_key() = default; + reg_key(const reg_key&) = delete; + reg_key& operator=(const reg_key&) = delete; + + HKEY handle() + { + return m_key; + } + + bool is_open() const + { + return m_is_open; + } + + LONG open(const wchar_t* key_name) + { + LONG result; + result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, key_name, 0, KEY_READ, &m_key); + if (result == ERROR_SUCCESS) + m_is_open = true; + return result; + } + + LONG close() + { + if (m_is_open) + { + auto result = RegCloseKey(m_key); + assert(result == ERROR_SUCCESS); + if (result == ERROR_SUCCESS) + { + m_is_open = false; + m_key = nullptr; + } + return result; + } + return ERROR_SUCCESS; + } + + // WARNING: this function is not a general-purpose function. + // It has a hard-coded value size limit that should be sufficient for our use cases. + bool get_string(const wchar_t* key_name, std::string& value, std::wstring_convert>& converter) + { + value.clear(); + wchar_t value_buffer[256]; + // in/out parameter. Documentation say that size is a count of bytes not chars. + DWORD size = sizeof(value_buffer) - sizeof(value_buffer[0]); + DWORD tzi_type = REG_SZ; + if (RegQueryValueExW(handle(), key_name, nullptr, &tzi_type, + reinterpret_cast(value_buffer), &size) == ERROR_SUCCESS) + { + // Function does not guarantee to null terminate. + value_buffer[size/sizeof(value_buffer[0])] = L'\0'; + value = converter.to_bytes(value_buffer); + return true; + } + return false; + } + + bool get_binary(const wchar_t* key_name, void* value, int value_size) + { + DWORD size = value_size; + DWORD type = REG_BINARY; + if (RegQueryValueExW(handle(), key_name, nullptr, &type, + reinterpret_cast(value), &size) == ERROR_SUCCESS + && (int) size == value_size) + return true; + return false; + } +}; + +} // anonymous namespace + +static +std::string +get_download_mapping_file(const std::string& version) +{ + auto file = install + version + "windowsZones.xml"; + return file; +} + +// Parse this XML file: +// http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml +// The parsing method is designed to be simple and quick. It is not overly +// forgiving of change but it should diagnose basic format issues. +// See timezone_mapping structure for more info. +static +std::vector +load_timezone_mappings_from_xml_file(const std::string& input_path) +{ + std::size_t line_num = 0; + std::vector mappings; + std::string line; + + std::ifstream is(input_path); + if (!is.is_open()) + { + // We don't emit file exceptions because that's an implementation detail. + std::string msg = "Error opening time zone mapping file \""; + msg += input_path; + msg += "\"."; + throw std::runtime_error(msg); + } + + auto error = [&input_path, &line_num](const char* info) + { + std::string msg = "Error loading time zone mapping file \""; + msg += input_path; + msg += "\" at line "; + msg += std::to_string(line_num); + msg += ": "; + msg += info; + throw std::runtime_error(msg); + }; + // [optional space]a="b" + auto read_attribute = [&line_num, &line, &error] + (const char* name, std::string& value, std::size_t startPos) + ->std::size_t + { + value.clear(); + // Skip leading space before attribute name. + std::size_t spos = line.find_first_not_of(' ', startPos); + if (spos == std::string::npos) + spos = startPos; + // Assume everything up to next = is the attribute name + // and that an = will always delimit that. + std::size_t epos = line.find('=', spos); + if (epos == std::string::npos) + error("Expected \'=\' right after attribute name."); + std::size_t name_len = epos - spos; + // Expect the name we find matches the name we expect. + if (line.compare(spos, name_len, name) != 0) + { + std::string msg; + msg = "Expected attribute name \'"; + msg += name; + msg += "\' around position "; + msg += std::to_string(spos); + msg += " but found something else."; + error(msg.c_str()); + } + ++epos; // Skip the '=' that is after the attribute name. + spos = epos; + if (spos < line.length() && line[spos] == '\"') + ++spos; // Skip the quote that is before the attribute value. + else + { + std::string msg = "Expected '\"' to begin value of attribute \'"; + msg += name; + msg += "\'."; + error(msg.c_str()); + } + epos = line.find('\"', spos); + if (epos == std::string::npos) + { + std::string msg = "Expected '\"' to end value of attribute \'"; + msg += name; + msg += "\'."; + error(msg.c_str()); + } + // Extract everything in between the quotes. Note no escaping is done. + std::size_t value_len = epos - spos; + value.assign(line, spos, value_len); + ++epos; // Skip the quote that is after the attribute value; + return epos; + }; + + // Quick but not overly forgiving XML mapping file processing. + bool mapTimezonesOpenTagFound = false; + bool mapTimezonesCloseTagFound = false; + bool mapZoneOpenTagFound = false; + bool mapTZoneCloseTagFound = false; + std::size_t mapZonePos = std::string::npos; + std::size_t mapTimezonesPos = std::string::npos; + CONSTDATA char mapTimeZonesOpeningTag[] = { ""); + mapTimezonesCloseTagFound = (mapTimezonesPos != std::string::npos); + if (!mapTimezonesCloseTagFound) + { + std::size_t commentPos = line.find(" " << x.target_; +} + +// leap + +leap::leap(const std::string& s, detail::undocumented) +{ + using namespace date; + std::istringstream in(s); + in.exceptions(std::ios::failbit | std::ios::badbit); + std::string word; + int y; + MonthDayTime date; + in >> word >> y >> date; + date_ = date.to_time_point(year(y)); +} + +std::ostream& +operator<<(std::ostream& os, const leap& x) +{ + using namespace date; + return os << x.date_ << " +"; +} + +static +bool +file_exists(const std::string& filename) +{ +#ifdef _WIN32 + return ::_access(filename.c_str(), 0) == 0; +#else + return ::access(filename.c_str(), F_OK) == 0; +#endif +} + +#if HAS_REMOTE_API + +// CURL tools + +static +int +curl_global() +{ + if (::curl_global_init(CURL_GLOBAL_DEFAULT) != 0) + throw std::runtime_error("CURL global initialization failed"); + return 0; +} + +static const auto curl_delete = [](CURL* p) {::curl_easy_cleanup(p);}; + +static +std::unique_ptr +curl_init() +{ + static const auto curl_is_now_initiailized = curl_global(); + (void)curl_is_now_initiailized; + return std::unique_ptr{::curl_easy_init(), curl_delete}; +} + +static +bool +download_to_string(const std::string& url, std::string& str) +{ + str.clear(); + auto curl = curl_init(); + if (!curl) + return false; + std::string version; + curl_easy_setopt(curl.get(), CURLOPT_URL, url.c_str()); + curl_write_callback write_cb = [](char* contents, std::size_t size, std::size_t nmemb, + void* userp) -> std::size_t + { + auto& str = *static_cast(userp); + auto realsize = size * nmemb; + str.append(contents, realsize); + return realsize; + }; + curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, write_cb); + curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, &str); + auto res = curl_easy_perform(curl.get()); + return (res == CURLE_OK); +} + +namespace +{ + enum class download_file_options { binary, text }; +} + +static +bool +download_to_file(const std::string& url, const std::string& local_filename, + download_file_options opts) +{ + auto curl = curl_init(); + if (!curl) + return false; + curl_easy_setopt(curl.get(), CURLOPT_URL, url.c_str()); + curl_write_callback write_cb = [](char* contents, std::size_t size, std::size_t nmemb, + void* userp) -> std::size_t + { + auto& of = *static_cast(userp); + auto realsize = size * nmemb; + of.write(contents, realsize); + return realsize; + }; + curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, write_cb); + decltype(curl_easy_perform(curl.get())) res; + { + std::ofstream of(local_filename, + opts == download_file_options::binary ? + std::ofstream::out | std::ofstream::binary : + std::ofstream::out); + of.exceptions(std::ios::badbit); + curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, &of); + res = curl_easy_perform(curl.get()); + } + return res == CURLE_OK; +} + +std::string +remote_version() +{ + std::string version; + std::string str; + if (download_to_string("http://www.iana.org/time-zones", str)) + { + CONSTDATA char db[] = "/time-zones/repository/releases/tzdata"; + CONSTDATA auto db_size = sizeof(db) - 1; + auto p = str.find(db, 0, db_size); + const int ver_str_len = 5; + if (p != std::string::npos && p + (db_size + ver_str_len) <= str.size()) + version = str.substr(p + db_size, ver_str_len); + } + return version; +} + +bool +remote_download(const std::string& version) +{ + assert(!version.empty()); + auto url = "http://www.iana.org/time-zones/repository/releases/tzdata" + version + + ".tar.gz"; + bool result = download_to_file(url, get_download_gz_file(version), + download_file_options::binary); +#ifdef TIMEZONE_MAPPING + if (result) + { + auto mapping_file = get_download_mapping_file(version); + result = download_to_file("http://unicode.org/repos/cldr/trunk/common/" + "supplemental/windowsZones.xml", + mapping_file, download_file_options::text); + } +#endif + return result; +} + +// TODO! Using system() create a process and a console window. +// This is useful to see what errors may occur but is slow and distracting. +// Consider implementing this functionality more directly, such as +// using _mkdir and CreateProcess etc. +// But use the current means now as matches Unix implementations and while +// in proof of concept / testing phase. +// TODO! Use eventually. +static +bool +remove_folder_and_subfolders(const std::string& folder) +{ +#ifdef _WIN32 +# if USE_SHELL_API + // Delete the folder contents by deleting the folder. + std::string cmd = "rd /s /q \""; + cmd += folder; + cmd += '\"'; + return std::system(cmd.c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + // Create a buffer containing the path to delete. It must be terminated + // by two nuls. Who designs these API's... + std::vector from; + from.assign(folder.begin(), folder.end()); + from.push_back('\0'); + from.push_back('\0'); + SHFILEOPSTRUCT fo{}; // Zero initialize. + fo.wFunc = FO_DELETE; + fo.pFrom = from.data(); + fo.fFlags = FOF_NO_UI; + int ret = SHFileOperation(&fo); + if (ret == 0 && !fo.fAnyOperationsAborted) + return true; + return false; +# endif // !USE_SHELL_API +#else // !WIN32 +# if USE_SHELL_API + return std::system(("rm -R " + folder).c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + struct dir_deleter { + dir_deleter() {} + void operator()(DIR* d) const + { + if (d != nullptr) + { + int result = closedir(d); + assert(result == 0); + } + } + }; + using closedir_ptr = std::unique_ptr; + + std::string filename; + struct stat statbuf; + std::size_t folder_len = folder.length(); + struct dirent* p = nullptr; + + closedir_ptr d(opendir(folder.c_str())); + bool r = d.get() != nullptr; + while (r && (p=readdir(d.get())) != nullptr) + { + if (strcmp(p->d_name, ".") == 0 || strcmp(p->d_name, "..") == 0) + continue; + + // + 2 for path delimiter and nul terminator. + std::size_t buf_len = folder_len + strlen(p->d_name) + 2; + filename.resize(buf_len); + std::size_t path_len = static_cast( + snprintf(&filename[0], buf_len, "%s/%s", folder.c_str(), p->d_name)); + assert(path_len == buf_len - 1); + filename.resize(path_len); + + if (stat(filename.c_str(), &statbuf) == 0) + r = S_ISDIR(statbuf.st_mode) + ? remove_folder_and_subfolders(filename) + : unlink(filename.c_str()) == 0; + } + d.reset(); + + if (r) + r = rmdir(folder.c_str()) == 0; + + return r; +# endif // !USE_SHELL_API +#endif // !WIN32 +} + +static +bool +make_directory(const std::string& folder) +{ +#ifdef _WIN32 +# if USE_SHELL_API + // Re-create the folder. + std::string cmd = "mkdir \""; + cmd += folder; + cmd += '\"'; + return std::system(cmd.c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + return _mkdir(folder.c_str()) == 0; +# endif // !USE_SHELL_API +#else // !WIN32 +# if USE_SHELL_API + return std::system(("mkdir " + folder).c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + return mkdir(folder.c_str(), 0777) == 0; +# endif // !USE_SHELL_API +#endif +} + +static +bool +delete_file(const std::string& file) +{ +#ifdef _WIN32 +# if USE_SHELL_API + std::string cmd = "del \""; + cmd += file; + cmd += '\"'; + return std::system(cmd.c_str()) == 0; +# else // !USE_SHELL_API + return _unlink(file.c_str()) == 0; +# endif // !USE_SHELL_API +#else // !WIN32 +# if USE_SHELL_API + return std::system(("rm " + file).c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + return unlink(file.c_str()) == 0; +# endif // !USE_SHELL_API +#endif // !WIN32 +} + +#ifdef TIMEZONE_MAPPING + +static +bool +move_file(const std::string& from, const std::string& to) +{ +#ifdef _WIN32 +# if USE_SHELL_API + std::string cmd = "move \""; + cmd += from; + cmd += "\" \""; + cmd += to; + cmd += '\"'; + return std::system(cmd.c_str()) == EXIT_SUCCESS; +# else // !USE_SHELL_API + return !!::MoveFile(from.c_str(), to.c_str()); +# endif // !USE_SHELL_API +#else // !WIN32 +# if USE_SHELL_API + return std::system(("mv " + from + " " + to).c_str()) == EXIT_SUCCESS; +# else + return rename(from, to) == 0); +# endif +#endif // !WIN32 +} + +#endif // TIMEZONE_MAPPING + +#ifdef _WIN32 + +// Note folder can and usually does contain spaces. +static +std::string +get_unzip_program() +{ + std::string path; + + // 7-Zip appears to note its location in the registry. + // If that doesn't work, fall through and take a guess, but it will likely be wrong. + HKEY hKey = nullptr; + if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\7-Zip", 0, KEY_READ, &hKey) == ERROR_SUCCESS) + { + char value_buffer[MAX_PATH + 1]; // fyi 260 at time of writing. + // in/out parameter. Documentation say that size is a count of bytes not chars. + DWORD size = sizeof(value_buffer) - sizeof(value_buffer[0]); + DWORD tzi_type = REG_SZ; + // Testing shows Path key value is "C:\Program Files\7-Zip\" i.e. always with trailing \. + bool got_value = (RegQueryValueExA(hKey, "Path", nullptr, &tzi_type, + reinterpret_cast(value_buffer), &size) == ERROR_SUCCESS); + RegCloseKey(hKey); // Close now incase of throw later. + if (got_value) + { + // Function does not guarantee to null terminate. + value_buffer[size / sizeof(value_buffer[0])] = '\0'; + path = value_buffer; + if (!path.empty()) + { + path += "7z.exe"; + return path; + } + } + } + path += get_program_folder(); + path += folder_delimiter; + path += "7-Zip\\7z.exe"; + return path; +} + +#if !USE_SHELL_API +static +int +run_program(const std::string& command) +{ + STARTUPINFO si{}; + si.cb = sizeof(si); + PROCESS_INFORMATION pi{}; + + // Allegedly CreateProcess overwrites the command line. Ugh. + std::string mutable_command(command); + if (CreateProcess(nullptr, &mutable_command[0], + nullptr, nullptr, FALSE, CREATE_NO_WINDOW, nullptr, nullptr, &si, &pi)) + { + WaitForSingleObject(pi.hProcess, INFINITE); + DWORD exit_code; + bool got_exit_code = !!GetExitCodeProcess(pi.hProcess, &exit_code); + CloseHandle(pi.hProcess); + CloseHandle(pi.hThread); + // Not 100% sure about this still active thing is correct, + // but I'm going with it because I *think* WaitForSingleObject might + // return in some cases without INFINITE-ly waiting. + // But why/wouldn't GetExitCodeProcess return false in that case? + if (got_exit_code && exit_code != STILL_ACTIVE) + return static_cast(exit_code); + } + return EXIT_FAILURE; +} +#endif // !USE_SHELL_API + +static +std::string +get_download_tar_file(const std::string& version) +{ + auto file = install; + file += folder_delimiter; + file += "tzdata"; + file += version; + file += ".tar"; + return file; +} + +static +bool +extract_gz_file(const std::string& version, const std::string& gz_file, + const std::string& dest_folder) +{ + auto unzip_prog = get_unzip_program(); + bool unzip_result = false; + // Use the unzip program to extract the tar file from the archive. + + // Aim to create a string like: + // "C:\Program Files\7-Zip\7z.exe" x "C:\Users\SomeUser\Downloads\tzdata2016d.tar.gz" + // -o"C:\Users\SomeUser\Downloads\tzdata" + std::string cmd; + cmd = '\"'; + cmd += unzip_prog; + cmd += "\" x \""; + cmd += gz_file; + cmd += "\" -o\""; + cmd += dest_folder; + cmd += '\"'; + +#if USE_SHELL_API + // When using shelling out with std::system() extra quotes are required around the + // whole command. It's weird but neccessary it seems, see: + // http://stackoverflow.com/q/27975969/576911 + + cmd = "\"" + cmd + "\""; + if (std::system(cmd.c_str()) == EXIT_SUCCESS) + unzip_result = true; +#else // !USE_SHELL_API + if (run_program(cmd) == EXIT_SUCCESS) + unzip_result = true; +#endif // !USE_SHELL_API + if (unzip_result) + delete_file(gz_file); + + // Use the unzip program extract the data from the tar file that was + // just extracted from the archive. + auto tar_file = get_download_tar_file(version); + cmd = '\"'; + cmd += unzip_prog; + cmd += "\" x \""; + cmd += tar_file; + cmd += "\" -o\""; + cmd += install; + cmd += '\"'; +#if USE_SHELL_API + cmd = "\"" + cmd + "\""; + if (std::system(cmd.c_str()) == EXIT_SUCCESS) + unzip_result = true; +#else // !USE_SHELL_API + if (run_program(cmd) == EXIT_SUCCESS) + unzip_result = true; +#endif // !USE_SHELL_API + + if (unzip_result) + delete_file(tar_file); + + return unzip_result; +} + +#else // !_WIN32 + +#if !USE_SHELL_API +static +int +run_program(const char* prog, const char*const args[]) +{ + pid_t pid = fork(); + if (pid == -1) // Child failed to start. + return EXIT_FAILURE; + + if (pid != 0) + { + // We are in the parent. Child started. Wait for it. + pid_t ret; + int status; + while ((ret = waitpid(pid, &status, 0)) == -1) + { + if (errno != EINTR) + break; + } + if (ret != -1) + { + if (WIFEXITED(status)) + return WEXITSTATUS(status); + } + printf("Child issues!\n"); + + return EXIT_FAILURE; // Not sure what status of child is. + } + else // We are in the child process. Start the program the parent wants to run. + { + + if (execv(prog, const_cast(args)) == -1) // Does not return. + { + perror("unreachable 0\n"); + _Exit(127); + } + printf("unreachable 2\n"); + } + printf("unreachable 2\n"); + // Unreachable. + assert(false); + exit(EXIT_FAILURE); + return EXIT_FAILURE; +} +#endif // !USE_SHELL_API + +static +bool +extract_gz_file(const std::string&, const std::string& gz_file, const std::string&) +{ +#if USE_SHELL_API + bool unzipped = std::system(("tar -xzf " + gz_file + " -C " + install).c_str()) == EXIT_SUCCESS; +#else // !USE_SHELL_API + const char prog[] = {"/usr/bin/tar"}; + const char*const args[] = + { + prog, "-xzf", gz_file.c_str(), "-C", install.c_str(), nullptr + }; + bool unzipped = (run_program(prog, args) == EXIT_SUCCESS); +#endif // !USE_SHELL_API + if (unzipped) + { + delete_file(gz_file); + return true; + } + return false; +} + +#endif // !_WIN32 + +bool +remote_install(const std::string& version) +{ + auto success = false; + assert(!version.empty()); + + auto gz_file = get_download_gz_file(version); + if (file_exists(gz_file)) + { + if (file_exists(install)) + remove_folder_and_subfolders(install); + if (make_directory(install)) + { + if (extract_gz_file(version, gz_file, install)) + success = true; +#ifdef TIMEZONE_MAPPING + auto mapping_file_source = get_download_mapping_file(version); + auto mapping_file_dest = install; + mapping_file_dest += folder_delimiter; + mapping_file_dest += "windowsZones.xml"; + if (!move_file(mapping_file_source, mapping_file_dest)) + success = false; +#endif + } + } + return success; +} +#endif // HAS_REMOTE_API + +static +std::string +get_version(const std::string& path) +{ + std::ifstream infile(path + "NEWS"); + std::string version; + while (infile) + { + infile >> version; + if (version == "Release") + { + infile >> version; + return version; + } + } + throw std::runtime_error("Unable to get Timezone database version from " + path); +} + +static +TZ_DB +init_tzdb() +{ + using namespace date; + const std::string path = install + folder_delimiter; + std::string line; + bool continue_zone = false; + TZ_DB db; + +#if AUTO_DOWNLOAD + if (!file_exists(install)) + { + auto rv = remote_version(); + if (!rv.empty() && remote_download(rv)) + { + if (!remote_install(rv)) + { + std::string msg = "Timezone database version \""; + msg += rv; + msg += "\" did not install correctly to \""; + msg += install; + msg += "\""; + throw std::runtime_error(msg); + } + } + if (!file_exists(install)) + { + std::string msg = "Timezone database not found at \""; + msg += install; + msg += "\""; + throw std::runtime_error(msg); + } + db.version = get_version(path); + } + else + { + db.version = get_version(path); + auto rv = remote_version(); + if (!rv.empty() && db.version != rv) + { + if (remote_download(rv)) + { + remote_install(rv); + db.version = get_version(path); + } + } + } +#else // !AUTO_DOWNLOAD + if (!file_exists(install)) + { + std::string msg = "Timezone database not found at \""; + msg += install; + msg += "\""; + throw std::runtime_error(msg); + } + db.version = get_version(path); +#endif // !AUTO_DOWNLOAD + + for (const auto& filename : files) + { + std::ifstream infile(path + filename); + while (infile) + { + std::getline(infile, line); + if (!line.empty() && line[0] != '#') + { + std::istringstream in(line); + std::string word; + in >> word; + if (word == "Rule") + { + db.rules.push_back(Rule(line)); + continue_zone = false; + } + else if (word == "Link") + { + db.links.push_back(link(line)); + continue_zone = false; + } + else if (word == "Leap") + { + db.leaps.push_back(leap(line, detail::undocumented{})); + continue_zone = false; + } + else if (word == "Zone") + { + db.zones.push_back(time_zone(line, detail::undocumented{})); + continue_zone = true; + } + else if (line[0] == '\t' && continue_zone) + { + db.zones.back().add(line); + } + else + { + std::cerr << line << '\n'; + } + } + } + } + std::sort(db.rules.begin(), db.rules.end()); + Rule::split_overlaps(db.rules); + std::sort(db.zones.begin(), db.zones.end()); +#if !LAZY_INIT + for (auto& z : db.zones) + z.adjust_infos(db.rules); +#endif + db.zones.shrink_to_fit(); + std::sort(db.links.begin(), db.links.end()); + db.links.shrink_to_fit(); + std::sort(db.leaps.begin(), db.leaps.end()); + db.leaps.shrink_to_fit(); + +#ifdef TIMEZONE_MAPPING + std::string mapping_file = path + "windowsZones.xml"; + db.mappings = load_timezone_mappings_from_xml_file(mapping_file); + sort_zone_mappings(db.mappings); + get_windows_timezone_info(db.native_zones); +#endif // TIMEZONE_MAPPING + + return db; +} + +static +TZ_DB& +access_tzdb() +{ + static TZ_DB tz_db; + return tz_db; +} + +const TZ_DB& +reload_tzdb() +{ +#if AUTO_DOWNLOAD + auto const& v = access_tzdb().version; + if (!v.empty() && v == remote_version()) + return access_tzdb(); +#endif + return access_tzdb() = init_tzdb(); +} + +const TZ_DB& +get_tzdb() +{ + static const TZ_DB& ref = access_tzdb() = init_tzdb(); + return ref; +} + +const time_zone* +locate_zone(const std::string& tz_name) +{ + const auto& db = get_tzdb(); + auto zi = std::lower_bound(db.zones.begin(), db.zones.end(), tz_name, + [](const time_zone& z, const std::string& nm) + { + return z.name() < nm; + }); + if (zi == db.zones.end() || zi->name() != tz_name) + { + auto li = std::lower_bound(db.links.begin(), db.links.end(), tz_name, + [](const link& z, const std::string& nm) + { + return z.name() < nm; + }); + if (li != db.links.end() && li->name() == tz_name) + { + zi = std::lower_bound(db.zones.begin(), db.zones.end(), li->target(), + [](const time_zone& z, const std::string& nm) + { + return z.name() < nm; + }); + if (zi != db.zones.end() && zi->name() == li->target()) + return &*zi; + } + throw std::runtime_error(tz_name + " not found in timezone database"); + } + return &*zi; +} + +std::ostream& +operator<<(std::ostream& os, const TZ_DB& db) +{ + os << "Version: " << db.version << '\n'; + std::string title("--------------------------------------------" + "--------------------------------------------\n" + "Name ""Start Y ""End Y " + "Beginning ""Offset " + "Designator\n" + "--------------------------------------------" + "--------------------------------------------\n"); + int count = 0; + for (const auto& x : db.rules) + { + if (count++ % 50 == 0) + os << title; + os << x << '\n'; + } + os << '\n'; + title = std::string("---------------------------------------------------------" + "--------------------------------------------------------\n" + "Name ""Offset " + "Rule ""Abrev ""Until\n" + "---------------------------------------------------------" + "--------------------------------------------------------\n"); + count = 0; + for (const auto& x : db.zones) + { + if (count++ % 10 == 0) + os << title; + os << x << '\n'; + } + os << '\n'; + title = std::string("---------------------------------------------------------" + "--------------------------------------------------------\n" + "Alias ""To\n" + "---------------------------------------------------------" + "--------------------------------------------------------\n"); + count = 0; + for (const auto& x : db.links) + { + if (count++ % 45 == 0) + os << title; + os << x << '\n'; + } + os << '\n'; + title = std::string("---------------------------------------------------------" + "--------------------------------------------------------\n" + "Leap second on\n" + "---------------------------------------------------------" + "--------------------------------------------------------\n"); + os << title; + for (const auto& x : db.leaps) + os << x << '\n'; + return os; +} + +// ----------------------- + +#ifdef _WIN32 + +const time_zone* +current_zone() +{ +#ifdef TIMEZONE_MAPPING + TIME_ZONE_INFORMATION tzi{}; + DWORD tz_result = ::GetTimeZoneInformation(&tzi); + if (tz_result == TIME_ZONE_ID_INVALID) + { + auto error_code = ::GetLastError(); // Store this quick before it gets overwritten. + throw std::runtime_error("GetTimeZoneInformation failed: " + + get_win32_message(error_code)); + } + std::wstring_convert> converter; + std::string standard_name(converter.to_bytes(tzi.StandardName)); + auto tz = find_native_timezone_by_standard_name(standard_name); + if (!tz) + { + std::string msg; + msg = "current_zone() failed: "; + msg += standard_name; + msg += " was not found in the Windows Time Zone registry"; + throw std::runtime_error( msg ); + } + std::string standard_tzid; + if (!native_to_standard_timezone_name(tz->timezone_id, standard_tzid)) + { + std::string msg; + msg = "current_zone() failed: A mapping from the Windows Time Zone id \""; + msg += tz->timezone_id; + msg += "\" was not found in the time zone mapping database."; + throw std::runtime_error(msg); + } + return date::locate_zone(standard_tzid); +#else // !TIMEZONE_MAPPING + // Currently Win32 requires iana <--> windows tz name mappings + // for this function to work. + // TODO! we should really support TIMEZONE_MAPPINGS=0 on Windows, + // And in this mode we should read the current iana timezone from a file. + // This would allow the TZ library do be used by apps that don't care + // about Windows standard names just iana names. + // This would allow the xml dependency to be dropped and none of + // the name mapping functions would be needed. + throw std::runtime_error("current_zone not implemented."); +#endif // !TIMEZONE_MAPPING +} + +#else // !WIN32 + +const time_zone* +current_zone() +{ + // On some OS's a file called /etc/localtime may + // exist and it may be either a real file + // containing time zone details or a symlink to such a file. + // On MacOS and BSD Unix if this file is a symlink it + // might resolve to a path like this: + // "/usr/share/zoneinfo/America/Los_Angeles" + // If it does, we try to determine the current + // timezone from the remainder of the path by removing the prefix + // and hoping the rest resolves to valid timezone. + // It may not always work though. If it doesn't then an + // exception will be thrown by local_timezone. + // The path may also take a relative form: + // "../usr/share/zoneinfo/America/Los_Angeles". + struct stat sb; + CONSTDATA auto timezone = "/etc/localtime"; + if (lstat(timezone, &sb) == 0 && S_ISLNK(sb.st_mode) && sb.st_size > 0) + { + std::string result(sb.st_size, '\0'); + auto sz = readlink(timezone, &result.front(), result.size()); + if (sz == -1) + throw std::runtime_error("readlink failure"); + result.resize(sz); + const char zonepath[] = "/usr/share/zoneinfo/"; + const std::size_t zonepath_len = sizeof(zonepath)/sizeof(zonepath[0])-1; + const std::size_t pos = result.find(zonepath); + if (pos != result.npos) + result.erase(0, zonepath_len+pos); + return locate_zone(result); + } + { + // On some versions of some linux distro's (e.g. Ubuntu), + // the current timezone might be in the first line of + // the /etc/timezone file. + std::ifstream timezone_file("/etc/timezone"); + if (timezone_file.is_open()) + { + std::string result; + std::getline(timezone_file, result); + if (!result.empty()) + return locate_zone(result); + } + // Fall through to try other means. + } + { + // On some versions of some linux distro's (e.g. Red Hat), + // the current timezone might be in the first line of + // the /etc/sysconfig/clock file as: + // ZONE="US/Eastern" + std::ifstream timezone_file("/etc/sysconfig/clock"); + std::string result; + while (timezone_file) + { + std::getline(timezone_file, result); + auto p = result.find("ZONE=\""); + if (p != std::string::npos) + { + result.erase(p, p+6); + result.erase(result.rfind('"')); + return locate_zone(result); + } + } + // Fall through to try other means. + } + throw std::runtime_error("Could not get current timezone"); +} + +#endif // !WIN32 + +#if defined(TZ_TEST) && defined(TIMEZONE_MAPPING) + +const time_zone* +locate_native_zone(const std::string& native_tz_name) +{ + std::string standard_tz_name; + if (!native_to_standard_timezone_name(native_tz_name, standard_tz_name)) + { + std::string msg; + msg = "locate_native_zone() failed: A mapping from the native/Windows Time Zone id \""; + msg += native_tz_name; + msg += "\" was not found in the time zone mapping database."; + throw std::runtime_error(msg); + } + return locate_zone(standard_tz_name); +} + +#endif // TZ_TEST && TIMEZONE_MAPPING + +} // namespace date diff --git a/ext/date/tz.h b/ext/date/tz.h new file mode 100644 index 0000000..49cb805 --- /dev/null +++ b/ext/date/tz.h @@ -0,0 +1,1345 @@ +#ifndef TZ_H +#define TZ_H + +// The MIT License (MIT) +// +// Copyright (c) 2015, 2016 Howard Hinnant +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +// Get more recent database at http://www.iana.org/time-zones + +// The notion of "current timezone" is something the operating system is expected to "just +// know". How it knows this is system specific. It's often a value set by the user at OS +// intallation time and recorded by the OS somewhere. On Linux and Mac systems the current +// timezone name is obtained by looking at the name or contents of a particular file on +// disk. On Windows the current timzeone name comes from the registry. In either method, +// there is no guarantee that the "native" current timezone name obtained will match any +// of the "Standard" names in this library's "database". On Linux, the names usually do +// seem to match so mapping functions to map from native to "Standard" are typically not +// required. On Windows, the names are never "Standard" so mapping is always required. +// Technically any OS may use the mapping process but currently only Windows does use it. + +#ifdef _WIN32 +# ifndef TIMEZONE_MAPPING +# define TIMEZONE_MAPPING 1 +# endif +#else +# ifdef TIMEZONE_MAPPING +# error "Timezone mapping is not required or not implemented for this platform." +# endif +#endif + +#ifndef LAZY_INIT +# define LAZY_INIT 1 +#endif + +#ifndef HAS_REMOTE_API +# ifdef _WIN32 +# define HAS_REMOTE_API 0 +# else +# define HAS_REMOTE_API 1 +# endif +#endif + +#ifndef AUTO_DOWNLOAD +# define AUTO_DOWNLOAD HAS_REMOTE_API +#endif + +static_assert(HAS_REMOTE_API == 0 ? AUTO_DOWNLOAD == 0 : true, + "AUTO_DOWNLOAD can not be turned on without HAS_REMOTE_API"); + +#ifndef USE_SHELL_API +# define USE_SHELL_API 1 +#endif + +#include "date.h" + +#if defined(_MSC_VER) && (_MSC_VER < 1900) +#include "tz_private.h" +#endif + +#include +#include +#include +#include +#include +#if LAZY_INIT +# include +# include +#endif +#include +#include +#include +#include +#include +#include +#include + +namespace date +{ + +enum class choose {earliest, latest}; + +namespace detail +{ + struct undocumented; +} + +class nonexistent_local_time + : public std::runtime_error +{ +public: + template + nonexistent_local_time(local_time tp, local_seconds first, + const std::string& first_abbrev, local_seconds last, + const std::string& last_abbrev, sys_seconds time_sys); + +private: + template + static + std::string + make_msg(local_time tp, + local_seconds first, const std::string& first_abbrev, + local_seconds last, const std::string& last_abbrev, + sys_seconds time_sys); +}; + +template +inline +nonexistent_local_time::nonexistent_local_time(local_time tp, + local_seconds first, + const std::string& first_abbrev, + local_seconds last, + const std::string& last_abbrev, + sys_seconds time_sys) + : std::runtime_error(make_msg(tp, first, first_abbrev, last, last_abbrev, time_sys)) + {} + +template +std::string +nonexistent_local_time::make_msg(local_time tp, local_seconds first, + const std::string& first_abbrev, local_seconds last, + const std::string& last_abbrev, sys_seconds time_sys) +{ + using namespace date; + std::ostringstream os; + os << tp << " is in a gap between\n" + << first << ' ' << first_abbrev << " and\n" + << last << ' ' << last_abbrev + << " which are both equivalent to\n" + << time_sys << " UTC"; + return os.str(); +} + +class ambiguous_local_time + : public std::runtime_error +{ +public: + template + ambiguous_local_time(local_time tp, std::chrono::seconds first_offset, + const std::string& first_abbrev, + std::chrono::seconds second_offset, + const std::string& second_abbrev); + +private: + template + static + std::string + make_msg(local_time tp, + std::chrono::seconds first_offset, const std::string& first_abbrev, + std::chrono::seconds second_offset, const std::string& second_abbrev); +}; + +template +inline +ambiguous_local_time::ambiguous_local_time( + local_time tp, + std::chrono::seconds first_offset, + const std::string& first_abbrev, + std::chrono::seconds second_offset, + const std::string& second_abbrev) + : std::runtime_error(make_msg(tp, first_offset, first_abbrev, second_offset, + second_abbrev)) + {} + +template +std::string +ambiguous_local_time::make_msg(local_time tp, + std::chrono::seconds first_offset, + const std::string& first_abbrev, + std::chrono::seconds second_offset, + const std::string& second_abbrev) +{ + using namespace date; + std::ostringstream os; + os << tp << " is ambiguous. It could be\n" + << tp << ' ' << first_abbrev << " == " + << tp - first_offset << " UTC or\n" + << tp << ' ' << second_abbrev << " == " + << tp - second_offset << " UTC"; + return os.str(); +} + +namespace detail { class Rule; } + +struct sys_info +{ + sys_seconds begin; + sys_seconds end; + std::chrono::seconds offset; + std::chrono::minutes save; + std::string abbrev; +}; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const sys_info& r) +{ + os << r.begin << '\n'; + os << r.end << '\n'; + os << make_time(r.offset) << "\n"; + os << make_time(r.save) << "\n"; + os << r.abbrev << '\n'; + return os; +} + +struct local_info +{ + enum {unique, nonexistent, ambiguous} result; + sys_info first; + sys_info second; +}; + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const local_info& r) +{ + if (r.result == local_info::nonexistent) + os << "nonexistent between\n"; + else if (r.result == local_info::ambiguous) + os << "ambiguous between\n"; + os << r.first; + if (r.result != local_info::unique) + { + os << "and\n"; + os << r.second; + } + return os; +} + +class time_zone; + +template +class zoned_time +{ + const time_zone* zone_; + sys_time tp_; + +public: + zoned_time(const sys_time& st); + explicit zoned_time(const time_zone* z); + explicit zoned_time(const std::string& name); + + template , + sys_time>::value + >::type> + zoned_time(const zoned_time& zt) NOEXCEPT; + + zoned_time(const time_zone* z, const local_time& tp); + zoned_time(const std::string& name, const local_time& tp); + zoned_time(const time_zone* z, const local_time& tp, choose c); + zoned_time(const std::string& name, const local_time& tp, choose c); + + zoned_time(const time_zone* z, const zoned_time& zt); + zoned_time(const std::string& name, const zoned_time& zt); + zoned_time(const time_zone* z, const zoned_time& zt, choose); + zoned_time(const std::string& name, const zoned_time& zt, choose); + + zoned_time(const time_zone* z, const sys_time& st); + zoned_time(const std::string& name, const sys_time& st); + + zoned_time& operator=(const sys_time& st); + zoned_time& operator=(const local_time& ut); + + operator sys_time() const; + explicit operator local_time() const; + + const time_zone* get_time_zone() const; + local_time get_local_time() const; + sys_time get_sys_time() const; + sys_info get_info() const; + + template + friend + bool + operator==(const zoned_time& x, const zoned_time& y); + + template + friend + std::basic_ostream& + operator<<(std::basic_ostream& os, const zoned_time& t); + +private: + template friend class zoned_time; + + static_assert(std::is_convertible::value, + "zoned_time must have a precision of seconds or finer"); +}; + +using zoned_seconds = zoned_time; + +template +inline +bool +operator==(const zoned_time& x, const zoned_time& y) +{ + return x.zone_ == y.zone_ && x.tp_ == y.tp_; +} + +template +inline +bool +operator!=(const zoned_time& x, const zoned_time& y) +{ + return !(x == y); +} + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +namespace detail { struct zonelet; } +#endif + +class time_zone +{ +private: + + std::string name_; + std::vector zonelets_; +#if LAZY_INIT + std::unique_ptr adjusted_; +#endif + +public: +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + time_zone(time_zone&&) = default; + time_zone& operator=(time_zone&&) = default; +#else // defined(_MSC_VER) && (_MSC_VER < 1900) + time_zone(time_zone&& src); + time_zone& operator=(time_zone&& src); +#endif // defined(_MSC_VER) && (_MSC_VER < 1900) + + explicit time_zone(const std::string& s, detail::undocumented); + + const std::string& name() const NOEXCEPT; + + template sys_info get_info(sys_time st) const; + template local_info get_info(local_time tp) const; + + template + sys_time::type> + to_sys(local_time tp) const; + + template + sys_time::type> + to_sys(local_time tp, choose z) const; + + template + local_time::type> + to_local(sys_time tp) const; + + friend bool operator==(const time_zone& x, const time_zone& y) NOEXCEPT; + friend bool operator< (const time_zone& x, const time_zone& y) NOEXCEPT; + friend std::ostream& operator<<(std::ostream& os, const time_zone& z); + + void add(const std::string& s); + void adjust_infos(const std::vector& rules); + +private: + sys_info get_info_impl(sys_seconds tp) const; + local_info get_info_impl(local_seconds tp) const; + sys_info get_info_impl(sys_seconds tp, int timezone) const; + + void parse_info(std::istream& in); + + template + sys_time::type> + to_sys_impl(local_time tp, choose z, std::false_type) const; + template + sys_time::type> + to_sys_impl(local_time tp, choose, std::true_type) const; +}; + +#if defined(_MSC_VER) && (_MSC_VER < 1900) + +inline +time_zone::time_zone(time_zone&& src) + : name_(std::move(src.name_)) + , zonelets_(std::move(src.zonelets_)) +#if LAZY_INIT + , adjusted_(std::move(src.adjusted_)) +#endif + {} + +inline +time_zone& +time_zone::operator=(time_zone&& src) +{ + name_ = std::move(src.name_); + zonelets_ = std::move(src.zonelets_); +#if LAZY_INIT + adjusted_ = std::move(src.adjusted_); +#endif + return *this; +} + +#endif // defined(_MSC_VER) && (_MSC_VER < 1900) + +inline +const std::string& +time_zone::name() const NOEXCEPT +{ + return name_; +} + +template +inline +sys_info +time_zone::get_info(sys_time st) const +{ + using namespace std::chrono; + return get_info_impl(floor(st)); +} + +template +inline +local_info +time_zone::get_info(local_time tp) const +{ + using namespace std::chrono; + return get_info_impl(floor(tp)); +} + +template +inline +sys_time::type> +time_zone::to_sys(local_time tp) const +{ + return to_sys_impl(tp, choose{}, std::true_type{}); +} + +template +inline +sys_time::type> +time_zone::to_sys(local_time tp, choose z) const +{ + return to_sys_impl(tp, z, std::false_type{}); +} + +template +inline +local_time::type> +time_zone::to_local(sys_time tp) const +{ + using LT = local_time::type>; + auto i = get_info(tp); + return LT{(tp + i.offset).time_since_epoch()}; +} + +inline bool operator==(const time_zone& x, const time_zone& y) NOEXCEPT {return x.name_ == y.name_;} +inline bool operator< (const time_zone& x, const time_zone& y) NOEXCEPT {return x.name_ < y.name_;} + +inline bool operator!=(const time_zone& x, const time_zone& y) NOEXCEPT {return !(x == y);} +inline bool operator> (const time_zone& x, const time_zone& y) NOEXCEPT {return y < x;} +inline bool operator<=(const time_zone& x, const time_zone& y) NOEXCEPT {return !(y < x);} +inline bool operator>=(const time_zone& x, const time_zone& y) NOEXCEPT {return !(x < y);} + +template +sys_time::type> +time_zone::to_sys_impl(local_time tp, choose z, std::false_type) const +{ + using namespace date; + using namespace std::chrono; + auto i = get_info(tp); + if (i.result == local_info::nonexistent) + { + return i.first.end; + } + else if (i.result == local_info::ambiguous) + { + if (z == choose::latest) + return sys_time{tp.time_since_epoch()} - i.second.offset; + } + return sys_time{tp.time_since_epoch()} - i.first.offset; +} + +template +sys_time::type> +time_zone::to_sys_impl(local_time tp, choose, std::true_type) const +{ + using namespace date; + using namespace std::chrono; + auto i = get_info(tp); + if (i.result == local_info::nonexistent) + { + auto prev_end = local_seconds{i.first.end.time_since_epoch()} + + i.first.offset; + auto next_begin = local_seconds{i.second.begin.time_since_epoch()} + + i.second.offset; + throw nonexistent_local_time(tp, prev_end, i.first.abbrev, + next_begin, i.second.abbrev, i.first.end); + } + else if (i.result == local_info::ambiguous) + { + throw ambiguous_local_time(tp, i.first.offset, i.first.abbrev, + i.second.offset, i.second.abbrev); + } + return sys_time{tp.time_since_epoch()} - i.first.offset; +} + +class link +{ +private: + std::string name_; + std::string target_; +public: + explicit link(const std::string& s); + + const std::string& name() const {return name_;} + const std::string& target() const {return target_;} + + friend bool operator==(const link& x, const link& y) {return x.name_ == y.name_;} + friend bool operator< (const link& x, const link& y) {return x.name_ < y.name_;} + + friend std::ostream& operator<<(std::ostream& os, const link& x); +}; + +inline bool operator!=(const link& x, const link& y) {return !(x == y);} +inline bool operator> (const link& x, const link& y) {return y < x;} +inline bool operator<=(const link& x, const link& y) {return !(y < x);} +inline bool operator>=(const link& x, const link& y) {return !(x < y);} + +class leap +{ +private: + sys_seconds date_; + +public: + explicit leap(const std::string& s, detail::undocumented); + + sys_seconds date() const {return date_;} + + friend bool operator==(const leap& x, const leap& y) {return x.date_ == y.date_;} + friend bool operator< (const leap& x, const leap& y) {return x.date_ < y.date_;} + + template + friend + bool + operator==(const leap& x, const sys_time& y) + { + return x.date_ == y; + } + + template + friend + bool + operator< (const leap& x, const sys_time& y) + { + return x.date_ < y; + } + + template + friend + bool + operator< (const sys_time& x, const leap& y) + { + return x < y.date_; + } + + friend std::ostream& operator<<(std::ostream& os, const leap& x); +}; + +inline bool operator!=(const leap& x, const leap& y) {return !(x == y);} +inline bool operator> (const leap& x, const leap& y) {return y < x;} +inline bool operator<=(const leap& x, const leap& y) {return !(y < x);} +inline bool operator>=(const leap& x, const leap& y) {return !(x < y);} + +template +inline +bool +operator==(const sys_time& x, const leap& y) +{ + return y == x; +} + +template +inline +bool +operator!=(const leap& x, const sys_time& y) +{ + return !(x == y); +} + +template +inline +bool +operator!=(const sys_time& x, const leap& y) +{ + return !(x == y); +} + +template +inline +bool +operator> (const leap& x, const sys_time& y) +{ + return y < x; +} + +template +inline +bool +operator> (const sys_time& x, const leap& y) +{ + return y < x; +} + +template +inline +bool +operator<=(const leap& x, const sys_time& y) +{ + return !(y < x); +} + +template +inline +bool +operator<=(const sys_time& x, const leap& y) +{ + return !(y < x); +} + +template +inline +bool +operator>=(const leap& x, const sys_time& y) +{ + return !(x < y); +} + +template +inline +bool +operator>=(const sys_time& x, const leap& y) +{ + return !(x < y); +} + +#ifdef TIMEZONE_MAPPING + +namespace detail +{ + +// The time zone mapping is modelled after this data file: +// http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml +// and the field names match the element names from the mapZone element +// of windowsZones.xml. +// The website displays this file here: +// http://www.unicode.org/cldr/charts/latest/supplemental/zone_tzid.html +// The html view is sorted before being displayed but is otherwise the same +// There is a mapping between the os centric view (in this case windows) +// the html displays uses and the generic view the xml file. +// That mapping is this: +// display column "windows" -> xml field "other". +// display column "region" -> xml field "territory". +// display column "tzid" -> xml field "type". +// This structure uses the generic terminology because it could be +// used to to support other os/native name conversions, not just windows, +// and using the same generic names helps retain the connection to the +// origin of the data that we are using. +struct timezone_mapping +{ + timezone_mapping(const char* other, const char* territory, const char* type) + : other(other), territory(territory), type(type) + { + } + timezone_mapping() = default; + std::string other; + std::string territory; + std::string type; +}; + +struct timezone_info +{ + timezone_info() = default; + std::string timezone_id; + std::string standard_name; +}; + +} // detail + +#endif // TIMEZONE_MAPPING + +struct TZ_DB +{ + std::string version; + std::vector zones; + std::vector links; + std::vector leaps; + std::vector rules; +#ifdef TIMEZONE_MAPPING + // TODO! These need some protection. + std::vector mappings; + std::vector native_zones; +#endif + + TZ_DB() = default; +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + TZ_DB(TZ_DB&&) = default; + TZ_DB& operator=(TZ_DB&&) = default; +#else // defined(_MSC_VER) || (_MSC_VER >= 1900) + TZ_DB(TZ_DB&& src) + : + version(std::move(src.version)), + zones(std::move(src.zones)), + links(std::move(src.links)), + leaps(std::move(src.leaps)), + rules(std::move(src.rules)) +#ifdef TIMEZONE_MAPPING + , + mappings(std::move(src.mappings)), + native_zones(std::move(src.native_zones)) +#endif + {} + + TZ_DB& operator=(TZ_DB&& src) + { + version = std::move(src.version); + zones = std::move(src.zones); + links = std::move(src.links); + leaps = std::move(src.leaps); + rules = std::move(src.rules); +#ifdef TIMEZONE_MAPPING + mappings = std::move(src.mappings); + native_zones = std::move(src.native_zones); +#endif + return *this; + } +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) +}; + +std::ostream& +operator<<(std::ostream& os, const TZ_DB& db); + +const TZ_DB& get_tzdb(); +const TZ_DB& reload_tzdb(); + +#if HAS_REMOTE_API +std::string remote_version(); +bool remote_download(const std::string& version); +bool remote_install(const std::string& version); +#endif + +const time_zone* locate_zone(const std::string& tz_name); +#ifdef TZ_TEST +# if _WIN32 +const time_zone* locate_native_zone(const std::string& native_tz_name); +# endif // _WIN32 +#endif // TZ_TEST +const time_zone* current_zone(); + +// zoned_time + +template +inline +zoned_time::zoned_time(const sys_time& st) + : zone_(locate_zone("UTC")) + , tp_(st) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z) + : zone_(z) + {assert(zone_ != nullptr);} + +template +inline +zoned_time::zoned_time(const std::string& name) + : zoned_time(locate_zone(name)) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z, const local_time& t) + : zone_(z) + , tp_(z->to_sys(t)) + {} + +template +inline +zoned_time::zoned_time(const std::string& name, const local_time& t) + : zoned_time(locate_zone(name), t) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z, const local_time& t, + choose c) + : zone_(z) + , tp_(z->to_sys(t, c)) + {} + +template +inline +zoned_time::zoned_time(const std::string& name, const local_time& t, + choose c) + : zoned_time(locate_zone(name), t, c) + {} + +template +template +inline +zoned_time::zoned_time(const zoned_time& zt) NOEXCEPT + : zone_(zt.zone_) + , tp_(zt.tp_) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z, const zoned_time& zt) + : zone_(z) + , tp_(zt.tp_) + {} + +template +inline +zoned_time::zoned_time(const std::string& name, const zoned_time& zt) + : zoned_time(locate_zone(name), zt) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z, const zoned_time& zt, choose) + : zoned_time(z, zt) + {} + +template +inline +zoned_time::zoned_time(const std::string& name, + const zoned_time& zt, choose c) + : zoned_time(locate_zone(name), zt, c) + {} + +template +inline +zoned_time::zoned_time(const time_zone* z, const sys_time& st) + : zone_(z) + , tp_(st) + {} + +template +inline +zoned_time::zoned_time(const std::string& name, const sys_time& st) + : zoned_time(locate_zone(name), st) + {} + + +template +inline +zoned_time& +zoned_time::operator=(const sys_time& st) +{ + tp_ = st; + return *this; +} + +template +inline +zoned_time& +zoned_time::operator=(const local_time& ut) +{ + tp_ = zone_->to_sys(ut); + return *this; +} + +template +inline +zoned_time::operator local_time() const +{ + return get_local_time(); +} + +template +inline +zoned_time::operator sys_time() const +{ + return get_sys_time(); +} + +template +inline +const time_zone* +zoned_time::get_time_zone() const +{ + return zone_; +} + +template +inline +local_time +zoned_time::get_local_time() const +{ + return zone_->to_local(tp_); +} + +template +inline +sys_time +zoned_time::get_sys_time() const +{ + return tp_; +} + +template +inline +sys_info +zoned_time::get_info() const +{ + return zone_->get_info(tp_); +} + +// make_zoned_time + +template +inline +zoned_time::type> +make_zoned(const sys_time& tp) +{ + return {tp}; +} + +template +inline +zoned_time::type> +make_zoned(const time_zone* zone, const local_time& tp) +{ + return {zone, tp}; +} + +template +inline +zoned_time::type> +make_zoned(const std::string& name, const local_time& tp) +{ + return {name, tp}; +} + +template +inline +zoned_time::type> +make_zoned(const time_zone* zone, const local_time& tp, choose c) +{ + return {zone, tp, c}; +} + +template +inline +zoned_time::type> +make_zoned(const std::string& name, const local_time& tp, choose c) +{ + return {name, tp, c}; +} + +template +inline +zoned_time::type> +make_zoned(const time_zone* zone, const zoned_time& zt) +{ + return {zone, zt}; +} + +template +inline +zoned_time::type> +make_zoned(const std::string& name, const zoned_time& zt) +{ + return {name, zt}; +} + +template +inline +zoned_time::type> +make_zoned(const time_zone* zone, const zoned_time& zt, choose c) +{ + return {zone, zt, c}; +} + +template +inline +zoned_time::type> +make_zoned(const std::string& name, const zoned_time& zt, choose c) +{ + return {name, zt, c}; +} + +template +inline +zoned_time::type> +make_zoned(const time_zone* zone, const sys_time& st) +{ + return {zone, st}; +} + +template +inline +zoned_time::type> +make_zoned(const std::string& name, const sys_time& st) +{ + return {name, st}; +} + +template +inline +std::basic_ostream& +operator<<(std::basic_ostream& os, const zoned_time& t) +{ + auto i = t.zone_->get_info(t.tp_); + auto lt = t.tp_ + i.offset; + return os << lt << ' ' << i.abbrev; +} + +class utc_clock +{ +public: + using duration = std::chrono::system_clock::duration; + using rep = duration::rep; + using period = duration::period; + using time_point = std::chrono::time_point; + static CONSTDATA bool is_steady = false; + + static time_point now(); +}; + +template + using utc_time = std::chrono::time_point; + +using utc_seconds = utc_time; + +template +inline +utc_time::type> +to_utc_time(const sys_time& st) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + auto const& leaps = get_tzdb().leaps; + auto const lt = std::upper_bound(leaps.begin(), leaps.end(), st); + return utc_time{st.time_since_epoch() + seconds{lt-leaps.begin()}}; +} + +template +inline +sys_time::type> +to_sys_time(const utc_time& ut) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + auto const& leaps = get_tzdb().leaps; + auto tp = sys_time{ut.time_since_epoch()}; + if (tp >= leaps.front()) + { + auto const lt = std::upper_bound(leaps.begin(), leaps.end(), tp); + tp -= seconds{lt-leaps.begin()}; + if (tp < lt[-1]) + { + if (tp >= lt[-1].date() - seconds{1}) + tp = lt[-1].date() - duration{1}; + else + tp += seconds{1}; + } + } + return tp; +} + +inline +utc_clock::time_point +utc_clock::now() +{ + using namespace std::chrono; + return to_utc_time(system_clock::now()); +} + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const utc_time& t) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + auto const& leaps = get_tzdb().leaps; + auto tp = sys_time{t.time_since_epoch()}; + if (tp >= leaps.front()) + { + auto const lt = std::upper_bound(leaps.begin(), leaps.end(), tp); + tp -= seconds{lt-leaps.begin()}; + if (tp < lt[-1]) + { + if (tp >= lt[-1].date() - seconds{1}) + { + auto const dp = floor(tp); + auto time = make_time(tp-dp); + time.seconds() += seconds{1}; + return os << year_month_day(dp) << ' ' << time; + } + else + tp += seconds{1}; + } + } + return os << tp; +} + +// tai_clock + +class tai_clock +{ +public: + using duration = std::chrono::system_clock::duration; + using rep = duration::rep; + using period = duration::period; + using time_point = std::chrono::time_point; + static const bool is_steady = false; + + static time_point now() NOEXCEPT; +}; + +template + using tai_time = std::chrono::time_point; + +using tai_seconds = tai_time; + +template +inline +utc_time::type> +to_utc_time(const tai_time& t) NOEXCEPT +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return utc_time{t.time_since_epoch()} - + (sys_days{year{1970}/jan/1} - sys_days{year{1958}/jan/1} + seconds{10}); +} + +template +inline +tai_time::type> +to_tai_time(const utc_time& t) NOEXCEPT +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return tai_time{t.time_since_epoch()} + + (sys_days{year{1970}/jan/1} - sys_days{year{1958}/jan/1} + seconds{10}); +} + +template +inline +tai_time::type> +to_tai_time(const sys_time& t) +{ + return to_tai_time(to_utc_time(t)); +} + +inline +tai_clock::time_point +tai_clock::now() NOEXCEPT +{ + using namespace std::chrono; + return to_tai_time(system_clock::now()); +} + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const tai_time& t) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + auto tp = sys_time{t.time_since_epoch()} - + (sys_days{year{1970}/jan/1} - sys_days{year{1958}/jan/1}); + return os << tp; +} + +// gps_clock + +class gps_clock +{ +public: + using duration = std::chrono::system_clock::duration; + using rep = duration::rep; + using period = duration::period; + using time_point = std::chrono::time_point; + static const bool is_steady = false; + + static time_point now() NOEXCEPT; +}; + +template + using gps_time = std::chrono::time_point; + +using gps_seconds = gps_time; + +template +inline +utc_time::type> +to_utc_time(const gps_time& t) NOEXCEPT +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return utc_time{t.time_since_epoch()} + + (sys_days{year{1980}/jan/sun[1]} - sys_days{year{1970}/jan/1} + seconds{9}); +} + +template +inline +gps_time::type> +to_gps_time(const utc_time& t) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return gps_time{t.time_since_epoch()} - + (sys_days{year{1980}/jan/sun[1]} - sys_days{year{1970}/jan/1} + seconds{9}); +} + +template +inline +gps_time::type> +to_gps_time(const sys_time& t) +{ + return to_gps_time(to_utc_time(t)); +} + +inline +gps_clock::time_point +gps_clock::now() NOEXCEPT +{ + using namespace std::chrono; + return to_gps_time(system_clock::now()); +} + +template +std::basic_ostream& +operator<<(std::basic_ostream& os, const gps_time& t) +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + auto tp = sys_time{t.time_since_epoch()} + + (sys_days{year{1980}/jan/sun[1]} - sys_days{year{1970}/jan/1}); + return os << tp; +} + +template +inline +sys_time::type> +to_sys_time(const tai_time& t) +{ + return to_sys_time(to_utc_time(t)); +} + +template +inline +sys_time::type> +to_sys_time(const gps_time& t) +{ + return to_sys_time(to_utc_time(t)); +} + +template +inline +tai_time::type> +to_tai_time(const gps_time& t) NOEXCEPT +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return tai_time{t.time_since_epoch()} + + (sys_days{year{1980}/jan/sun[1]} - sys_days{year{1958}/jan/1} + seconds{19}); +} + +template +inline +gps_time::type> +to_gps_time(const tai_time& t) NOEXCEPT +{ + using namespace std::chrono; + using duration = typename std::common_type::type; + return gps_time{t.time_since_epoch()} - + (sys_days{year{1980}/jan/sun[1]} - sys_days{year{1958}/jan/1} + seconds{19}); +} + +// format + +template +inline +std::basic_string +format(const std::locale& loc, std::basic_string fmt, + const zoned_time& tp) +{ + auto const info = tp.get_info(); + return detail::format(loc, std::move(fmt), tp.get_local_time(), + &info.abbrev, &info.offset); +} + +template +inline +std::basic_string +format(std::basic_string fmt, const zoned_time& tp) +{ + auto const info = tp.get_info(); + return detail::format(std::locale{}, std::move(fmt), tp.get_local_time(), + &info.abbrev, &info.offset); +} + +// const CharT* formats + +template +inline +std::basic_string +format(const std::locale& loc, const CharT* fmt, const zoned_time& tp) +{ + auto const info = tp.get_info(); + return detail::format(loc, std::basic_string(fmt), tp.get_local_time(), + &info.abbrev, &info.offset); +} + +template +inline +std::basic_string +format(const CharT* fmt, const zoned_time& tp) +{ + auto const info = tp.get_info(); + return detail::format(std::locale{}, std::basic_string(fmt), + tp.get_local_time(), &info.abbrev, &info.offset); +} + +} // namespace date + +#endif // TZ_H diff --git a/ext/date/tz_private.h b/ext/date/tz_private.h new file mode 100644 index 0000000..e796e9c --- /dev/null +++ b/ext/date/tz_private.h @@ -0,0 +1,265 @@ +#ifndef TZ_PRIVATE_H +#define TZ_PRIVATE_H + +// The MIT License (MIT) +// +// Copyright (c) 2015, 2016 Howard Hinnant +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// +// Our apologies. When the previous paragraph was written, lowercase had not yet +// been invented (that woud involve another several millennia of evolution). +// We did not mean to shout. + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) +#include "tz.h" +#else +#include "date.h" +#include +#endif + +namespace date +{ + +namespace detail +{ + +enum class tz {utc, local, standard}; + +//forward declare to avoid warnings in gcc 6.2 +class MonthDayTime; +std::istream& operator>>(std::istream& is, MonthDayTime& x); +std::ostream& operator<<(std::ostream& os, const MonthDayTime& x); + + +class MonthDayTime +{ +private: + struct pair + { +#if defined(_MSC_VER) && (_MSC_VER < 1900) + pair() : month_day_(date::jan / 1), weekday_(0U) {} + + pair(const date::month_day& month_day, const date::weekday& weekday) + : month_day_(month_day), weekday_(weekday) {} +#endif + + date::month_day month_day_; + date::weekday weekday_; + }; + + enum Type {month_day, month_last_dow, lteq, gteq}; + + Type type_{month_day}; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + union U +#else + struct U +#endif + { + date::month_day month_day_; + date::month_weekday_last month_weekday_last_; + pair month_day_weekday_; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + U() : month_day_{date::jan/1} {} +#else + U() : + month_day_(date::jan/1), + month_weekday_last_(date::month(0U), date::weekday_last(date::weekday(0U))) + {} + +#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900) + + U& operator=(const date::month_day& x); + U& operator=(const date::month_weekday_last& x); + U& operator=(const pair& x); + } u; + + std::chrono::hours h_{0}; + std::chrono::minutes m_{0}; + std::chrono::seconds s_{0}; + tz zone_{tz::local}; + +public: + MonthDayTime() = default; + MonthDayTime(local_seconds tp, tz timezone); + MonthDayTime(const date::month_day& md, tz timezone); + + date::day day() const; + date::month month() const; + tz zone() const {return zone_;} + + void canonicalize(date::year y); + + sys_seconds + to_sys(date::year y, std::chrono::seconds offset, std::chrono::seconds save) const; + sys_days to_sys_days(date::year y) const; + + sys_seconds to_time_point(date::year y) const; + int compare(date::year y, const MonthDayTime& x, date::year yx, + std::chrono::seconds offset, std::chrono::minutes prev_save) const; + + friend std::istream& operator>>(std::istream& is, MonthDayTime& x); + friend std::ostream& operator<<(std::ostream& os, const MonthDayTime& x); +}; + +// A Rule specifies one or more set of datetimes without using an offset. +// Multiple dates are specified with multiple years. The years in effect +// go from starting_year_ to ending_year_, inclusive. starting_year_ <= +// ending_year_. save_ is ineffect for times from the specified time +// onward, including the specified time. When the specified time is +// local, it uses the save_ from the chronologically previous Rule, or if +// there is none, 0. + +//forward declare to avoid warnings in gcc 6.2 +class Rule; +bool operator==(const Rule& x, const Rule& y); +bool operator<(const Rule& x, const Rule& y); +bool operator==(const Rule& x, const date::year& y); +bool operator<(const Rule& x, const date::year& y); +bool operator==(const date::year& x, const Rule& y); +bool operator<(const date::year& x, const Rule& y); +bool operator==(const Rule& x, const std::string& y); +bool operator<(const Rule& x, const std::string& y); +bool operator==(const std::string& x, const Rule& y); +bool operator<(const std::string& x, const Rule& y); +std::ostream& operator<<(std::ostream& os, const Rule& r); + +class Rule +{ +private: + std::string name_; + date::year starting_year_{0}; + date::year ending_year_{0}; + MonthDayTime starting_at_; + std::chrono::minutes save_{0}; + std::string abbrev_; + +public: + Rule() = default; + explicit Rule(const std::string& s); + Rule(const Rule& r, date::year starting_year, date::year ending_year); + + const std::string& name() const {return name_;} + const std::string& abbrev() const {return abbrev_;} + + const MonthDayTime& mdt() const {return starting_at_;} + const date::year& starting_year() const {return starting_year_;} + const date::year& ending_year() const {return ending_year_;} + const std::chrono::minutes& save() const {return save_;} + + static void split_overlaps(std::vector& rules); + + friend bool operator==(const Rule& x, const Rule& y); + friend bool operator<(const Rule& x, const Rule& y); + friend bool operator==(const Rule& x, const date::year& y); + friend bool operator<(const Rule& x, const date::year& y); + friend bool operator==(const date::year& x, const Rule& y); + friend bool operator<(const date::year& x, const Rule& y); + friend bool operator==(const Rule& x, const std::string& y); + friend bool operator<(const Rule& x, const std::string& y); + friend bool operator==(const std::string& x, const Rule& y); + friend bool operator<(const std::string& x, const Rule& y); + + friend std::ostream& operator<<(std::ostream& os, const Rule& r); + +private: + date::day day() const; + date::month month() const; + static void split_overlaps(std::vector& rules, std::size_t i, std::size_t& e); + static bool overlaps(const Rule& x, const Rule& y); + static void split(std::vector& rules, std::size_t i, std::size_t k, + std::size_t& e); +}; + +inline bool operator!=(const Rule& x, const Rule& y) {return !(x == y);} +inline bool operator> (const Rule& x, const Rule& y) {return y < x;} +inline bool operator<=(const Rule& x, const Rule& y) {return !(y < x);} +inline bool operator>=(const Rule& x, const Rule& y) {return !(x < y);} + +inline bool operator!=(const Rule& x, const date::year& y) {return !(x == y);} +inline bool operator> (const Rule& x, const date::year& y) {return y < x;} +inline bool operator<=(const Rule& x, const date::year& y) {return !(y < x);} +inline bool operator>=(const Rule& x, const date::year& y) {return !(x < y);} + +inline bool operator!=(const date::year& x, const Rule& y) {return !(x == y);} +inline bool operator> (const date::year& x, const Rule& y) {return y < x;} +inline bool operator<=(const date::year& x, const Rule& y) {return !(y < x);} +inline bool operator>=(const date::year& x, const Rule& y) {return !(x < y);} + +inline bool operator!=(const Rule& x, const std::string& y) {return !(x == y);} +inline bool operator> (const Rule& x, const std::string& y) {return y < x;} +inline bool operator<=(const Rule& x, const std::string& y) {return !(y < x);} +inline bool operator>=(const Rule& x, const std::string& y) {return !(x < y);} + +inline bool operator!=(const std::string& x, const Rule& y) {return !(x == y);} +inline bool operator> (const std::string& x, const Rule& y) {return y < x;} +inline bool operator<=(const std::string& x, const Rule& y) {return !(y < x);} +inline bool operator>=(const std::string& x, const Rule& y) {return !(x < y);} + +struct zonelet +{ + enum tag {has_rule, has_save, is_empty}; + + std::chrono::seconds gmtoff_; + tag tag_ = has_rule; + +#if !defined(_MSC_VER) || (_MSC_VER >= 1900) + union U +#else + struct U +#endif + { + std::string rule_; + std::chrono::minutes save_; + + ~U() {} + U() {} + U(const U&) {} + U& operator=(const U&) = delete; + } u; + + std::string format_; + date::year until_year_{0}; + MonthDayTime until_date_; + sys_seconds until_utc_; + local_seconds until_std_; + local_seconds until_loc_; + std::chrono::minutes initial_save_{}; + std::string initial_abbrev_; + std::pair first_rule_{nullptr, date::year::min()}; + std::pair last_rule_{nullptr, date::year::max()}; + + ~zonelet(); + zonelet(); + zonelet(const zonelet& i); + zonelet& operator=(const zonelet&) = delete; +}; + +} // namespace detail + +} // namespace date + +#if defined(_MSC_VER) && (_MSC_VER < 1900) +#include "tz.h" +#endif + +#endif // TZ_PRIVATE_H diff --git a/src/tools.h b/src/tools.h index ed2151a..728d3eb 100644 --- a/src/tools.h +++ b/src/tools.h @@ -18,6 +18,7 @@ #include "../ext/dateparser.h" #include "../ext/infix_iterator.h" +#include "../ext/date/tz.h" #include #include