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update rapidjson

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Riccardo Spagni 2016-09-17 09:35:49 +02:00
parent 2846d0850d
commit f62ebc5c81
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GPG key ID: 55432DF31CCD4FCD
31 changed files with 11484 additions and 6950 deletions
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0
external/rapidjson/internal/biginteger.h vendored Executable file → Normal file
View file

2
external/rapidjson/internal/diyfp.h vendored
View file

@ -41,7 +41,7 @@ RAPIDJSON_DIAG_OFF(padded)
#endif
struct DiyFp {
DiyFp() {}
DiyFp() : f(), e() {}
DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {}

42
external/rapidjson/internal/dtoa.h vendored
View file

@ -29,6 +29,7 @@ namespace internal {
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
RAPIDJSON_DIAG_OFF(array-bounds) // some gcc versions generate wrong warnings https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59124
#endif
inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) {
@ -101,7 +102,8 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buff
kappa--;
if (p2 < delta) {
*K += kappa;
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * kPow10[-static_cast<int>(kappa)]);
int index = -static_cast<int>(kappa);
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[-static_cast<int>(kappa)] : 0));
return;
}
}
@ -145,10 +147,10 @@ inline char* WriteExponent(int K, char* buffer) {
return buffer;
}
inline char* Prettify(char* buffer, int length, int k) {
inline char* Prettify(char* buffer, int length, int k, int maxDecimalPlaces) {
const int kk = length + k; // 10^(kk-1) <= v < 10^kk
if (length <= kk && kk <= 21) {
if (0 <= k && kk <= 21) {
// 1234e7 -> 12340000000
for (int i = length; i < kk; i++)
buffer[i] = '0';
@ -160,7 +162,16 @@ inline char* Prettify(char* buffer, int length, int k) {
// 1234e-2 -> 12.34
std::memmove(&buffer[kk + 1], &buffer[kk], static_cast<size_t>(length - kk));
buffer[kk] = '.';
return &buffer[length + 1];
if (0 > k + maxDecimalPlaces) {
// When maxDecimalPlaces = 2, 1.2345 -> 1.23, 1.102 -> 1.1
// Remove extra trailing zeros (at least one) after truncation.
for (int i = kk + maxDecimalPlaces; i > kk + 1; i--)
if (buffer[i] != '0')
return &buffer[i + 1];
return &buffer[kk + 2]; // Reserve one zero
}
else
return &buffer[length + 1];
}
else if (-6 < kk && kk <= 0) {
// 1234e-6 -> 0.001234
@ -170,7 +181,23 @@ inline char* Prettify(char* buffer, int length, int k) {
buffer[1] = '.';
for (int i = 2; i < offset; i++)
buffer[i] = '0';
return &buffer[length + offset];
if (length - kk > maxDecimalPlaces) {
// When maxDecimalPlaces = 2, 0.123 -> 0.12, 0.102 -> 0.1
// Remove extra trailing zeros (at least one) after truncation.
for (int i = maxDecimalPlaces + 1; i > 2; i--)
if (buffer[i] != '0')
return &buffer[i + 1];
return &buffer[3]; // Reserve one zero
}
else
return &buffer[length + offset];
}
else if (kk < -maxDecimalPlaces) {
// Truncate to zero
buffer[0] = '0';
buffer[1] = '.';
buffer[2] = '0';
return &buffer[3];
}
else if (length == 1) {
// 1e30
@ -186,7 +213,8 @@ inline char* Prettify(char* buffer, int length, int k) {
}
}
inline char* dtoa(double value, char* buffer) {
inline char* dtoa(double value, char* buffer, int maxDecimalPlaces = 324) {
RAPIDJSON_ASSERT(maxDecimalPlaces >= 1);
Double d(value);
if (d.IsZero()) {
if (d.Sign())
@ -203,7 +231,7 @@ inline char* dtoa(double value, char* buffer) {
}
int length, K;
Grisu2(value, buffer, &length, &K);
return Prettify(buffer, length, K);
return Prettify(buffer, length, K, maxDecimalPlaces);
}
}

1
external/rapidjson/internal/ieee754.h vendored
View file

@ -40,6 +40,7 @@ public:
bool IsNan() const { return (u_ & kExponentMask) == kExponentMask && Significand() != 0; }
bool IsInf() const { return (u_ & kExponentMask) == kExponentMask && Significand() == 0; }
bool IsNanOrInf() const { return (u_ & kExponentMask) == kExponentMask; }
bool IsNormal() const { return (u_ & kExponentMask) != 0 || Significand() == 0; }
bool IsZero() const { return (u_ & (kExponentMask | kSignificandMask)) == 0; }

362
external/rapidjson/internal/meta.h vendored
View file

@ -1,181 +1,181 @@
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_META_H_
#define RAPIDJSON_INTERNAL_META_H_
#include "../rapidjson.h"
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#if defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(6334)
#endif
#if RAPIDJSON_HAS_CXX11_TYPETRAITS
#include <type_traits>
#endif
//@cond RAPIDJSON_INTERNAL
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
// Helper to wrap/convert arbitrary types to void, useful for arbitrary type matching
template <typename T> struct Void { typedef void Type; };
///////////////////////////////////////////////////////////////////////////////
// BoolType, TrueType, FalseType
//
template <bool Cond> struct BoolType {
static const bool Value = Cond;
typedef BoolType Type;
};
typedef BoolType<true> TrueType;
typedef BoolType<false> FalseType;
///////////////////////////////////////////////////////////////////////////////
// SelectIf, BoolExpr, NotExpr, AndExpr, OrExpr
//
template <bool C> struct SelectIfImpl { template <typename T1, typename T2> struct Apply { typedef T1 Type; }; };
template <> struct SelectIfImpl<false> { template <typename T1, typename T2> struct Apply { typedef T2 Type; }; };
template <bool C, typename T1, typename T2> struct SelectIfCond : SelectIfImpl<C>::template Apply<T1,T2> {};
template <typename C, typename T1, typename T2> struct SelectIf : SelectIfCond<C::Value, T1, T2> {};
template <bool Cond1, bool Cond2> struct AndExprCond : FalseType {};
template <> struct AndExprCond<true, true> : TrueType {};
template <bool Cond1, bool Cond2> struct OrExprCond : TrueType {};
template <> struct OrExprCond<false, false> : FalseType {};
template <typename C> struct BoolExpr : SelectIf<C,TrueType,FalseType>::Type {};
template <typename C> struct NotExpr : SelectIf<C,FalseType,TrueType>::Type {};
template <typename C1, typename C2> struct AndExpr : AndExprCond<C1::Value, C2::Value>::Type {};
template <typename C1, typename C2> struct OrExpr : OrExprCond<C1::Value, C2::Value>::Type {};
///////////////////////////////////////////////////////////////////////////////
// AddConst, MaybeAddConst, RemoveConst
template <typename T> struct AddConst { typedef const T Type; };
template <bool Constify, typename T> struct MaybeAddConst : SelectIfCond<Constify, const T, T> {};
template <typename T> struct RemoveConst { typedef T Type; };
template <typename T> struct RemoveConst<const T> { typedef T Type; };
///////////////////////////////////////////////////////////////////////////////
// IsSame, IsConst, IsMoreConst, IsPointer
//
template <typename T, typename U> struct IsSame : FalseType {};
template <typename T> struct IsSame<T, T> : TrueType {};
template <typename T> struct IsConst : FalseType {};
template <typename T> struct IsConst<const T> : TrueType {};
template <typename CT, typename T>
struct IsMoreConst
: AndExpr<IsSame<typename RemoveConst<CT>::Type, typename RemoveConst<T>::Type>,
BoolType<IsConst<CT>::Value >= IsConst<T>::Value> >::Type {};
template <typename T> struct IsPointer : FalseType {};
template <typename T> struct IsPointer<T*> : TrueType {};
///////////////////////////////////////////////////////////////////////////////
// IsBaseOf
//
#if RAPIDJSON_HAS_CXX11_TYPETRAITS
template <typename B, typename D> struct IsBaseOf
: BoolType< ::std::is_base_of<B,D>::value> {};
#else // simplified version adopted from Boost
template<typename B, typename D> struct IsBaseOfImpl {
RAPIDJSON_STATIC_ASSERT(sizeof(B) != 0);
RAPIDJSON_STATIC_ASSERT(sizeof(D) != 0);
typedef char (&Yes)[1];
typedef char (&No) [2];
template <typename T>
static Yes Check(const D*, T);
static No Check(const B*, int);
struct Host {
operator const B*() const;
operator const D*();
};
enum { Value = (sizeof(Check(Host(), 0)) == sizeof(Yes)) };
};
template <typename B, typename D> struct IsBaseOf
: OrExpr<IsSame<B, D>, BoolExpr<IsBaseOfImpl<B, D> > >::Type {};
#endif // RAPIDJSON_HAS_CXX11_TYPETRAITS
//////////////////////////////////////////////////////////////////////////
// EnableIf / DisableIf
//
template <bool Condition, typename T = void> struct EnableIfCond { typedef T Type; };
template <typename T> struct EnableIfCond<false, T> { /* empty */ };
template <bool Condition, typename T = void> struct DisableIfCond { typedef T Type; };
template <typename T> struct DisableIfCond<true, T> { /* empty */ };
template <typename Condition, typename T = void>
struct EnableIf : EnableIfCond<Condition::Value, T> {};
template <typename Condition, typename T = void>
struct DisableIf : DisableIfCond<Condition::Value, T> {};
// SFINAE helpers
struct SfinaeTag {};
template <typename T> struct RemoveSfinaeTag;
template <typename T> struct RemoveSfinaeTag<SfinaeTag&(*)(T)> { typedef T Type; };
#define RAPIDJSON_REMOVEFPTR_(type) \
typename ::RAPIDJSON_NAMESPACE::internal::RemoveSfinaeTag \
< ::RAPIDJSON_NAMESPACE::internal::SfinaeTag&(*) type>::Type
#define RAPIDJSON_ENABLEIF(cond) \
typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \
<RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL
#define RAPIDJSON_DISABLEIF(cond) \
typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \
<RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL
#define RAPIDJSON_ENABLEIF_RETURN(cond,returntype) \
typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \
<RAPIDJSON_REMOVEFPTR_(cond), \
RAPIDJSON_REMOVEFPTR_(returntype)>::Type
#define RAPIDJSON_DISABLEIF_RETURN(cond,returntype) \
typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \
<RAPIDJSON_REMOVEFPTR_(cond), \
RAPIDJSON_REMOVEFPTR_(returntype)>::Type
} // namespace internal
RAPIDJSON_NAMESPACE_END
//@endcond
#if defined(__GNUC__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_META_H_
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_META_H_
#define RAPIDJSON_INTERNAL_META_H_
#include "../rapidjson.h"
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#if defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(6334)
#endif
#if RAPIDJSON_HAS_CXX11_TYPETRAITS
#include <type_traits>
#endif
//@cond RAPIDJSON_INTERNAL
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
// Helper to wrap/convert arbitrary types to void, useful for arbitrary type matching
template <typename T> struct Void { typedef void Type; };
///////////////////////////////////////////////////////////////////////////////
// BoolType, TrueType, FalseType
//
template <bool Cond> struct BoolType {
static const bool Value = Cond;
typedef BoolType Type;
};
typedef BoolType<true> TrueType;
typedef BoolType<false> FalseType;
///////////////////////////////////////////////////////////////////////////////
// SelectIf, BoolExpr, NotExpr, AndExpr, OrExpr
//
template <bool C> struct SelectIfImpl { template <typename T1, typename T2> struct Apply { typedef T1 Type; }; };
template <> struct SelectIfImpl<false> { template <typename T1, typename T2> struct Apply { typedef T2 Type; }; };
template <bool C, typename T1, typename T2> struct SelectIfCond : SelectIfImpl<C>::template Apply<T1,T2> {};
template <typename C, typename T1, typename T2> struct SelectIf : SelectIfCond<C::Value, T1, T2> {};
template <bool Cond1, bool Cond2> struct AndExprCond : FalseType {};
template <> struct AndExprCond<true, true> : TrueType {};
template <bool Cond1, bool Cond2> struct OrExprCond : TrueType {};
template <> struct OrExprCond<false, false> : FalseType {};
template <typename C> struct BoolExpr : SelectIf<C,TrueType,FalseType>::Type {};
template <typename C> struct NotExpr : SelectIf<C,FalseType,TrueType>::Type {};
template <typename C1, typename C2> struct AndExpr : AndExprCond<C1::Value, C2::Value>::Type {};
template <typename C1, typename C2> struct OrExpr : OrExprCond<C1::Value, C2::Value>::Type {};
///////////////////////////////////////////////////////////////////////////////
// AddConst, MaybeAddConst, RemoveConst
template <typename T> struct AddConst { typedef const T Type; };
template <bool Constify, typename T> struct MaybeAddConst : SelectIfCond<Constify, const T, T> {};
template <typename T> struct RemoveConst { typedef T Type; };
template <typename T> struct RemoveConst<const T> { typedef T Type; };
///////////////////////////////////////////////////////////////////////////////
// IsSame, IsConst, IsMoreConst, IsPointer
//
template <typename T, typename U> struct IsSame : FalseType {};
template <typename T> struct IsSame<T, T> : TrueType {};
template <typename T> struct IsConst : FalseType {};
template <typename T> struct IsConst<const T> : TrueType {};
template <typename CT, typename T>
struct IsMoreConst
: AndExpr<IsSame<typename RemoveConst<CT>::Type, typename RemoveConst<T>::Type>,
BoolType<IsConst<CT>::Value >= IsConst<T>::Value> >::Type {};
template <typename T> struct IsPointer : FalseType {};
template <typename T> struct IsPointer<T*> : TrueType {};
///////////////////////////////////////////////////////////////////////////////
// IsBaseOf
//
#if RAPIDJSON_HAS_CXX11_TYPETRAITS
template <typename B, typename D> struct IsBaseOf
: BoolType< ::std::is_base_of<B,D>::value> {};
#else // simplified version adopted from Boost
template<typename B, typename D> struct IsBaseOfImpl {
RAPIDJSON_STATIC_ASSERT(sizeof(B) != 0);
RAPIDJSON_STATIC_ASSERT(sizeof(D) != 0);
typedef char (&Yes)[1];
typedef char (&No) [2];
template <typename T>
static Yes Check(const D*, T);
static No Check(const B*, int);
struct Host {
operator const B*() const;
operator const D*();
};
enum { Value = (sizeof(Check(Host(), 0)) == sizeof(Yes)) };
};
template <typename B, typename D> struct IsBaseOf
: OrExpr<IsSame<B, D>, BoolExpr<IsBaseOfImpl<B, D> > >::Type {};
#endif // RAPIDJSON_HAS_CXX11_TYPETRAITS
//////////////////////////////////////////////////////////////////////////
// EnableIf / DisableIf
//
template <bool Condition, typename T = void> struct EnableIfCond { typedef T Type; };
template <typename T> struct EnableIfCond<false, T> { /* empty */ };
template <bool Condition, typename T = void> struct DisableIfCond { typedef T Type; };
template <typename T> struct DisableIfCond<true, T> { /* empty */ };
template <typename Condition, typename T = void>
struct EnableIf : EnableIfCond<Condition::Value, T> {};
template <typename Condition, typename T = void>
struct DisableIf : DisableIfCond<Condition::Value, T> {};
// SFINAE helpers
struct SfinaeTag {};
template <typename T> struct RemoveSfinaeTag;
template <typename T> struct RemoveSfinaeTag<SfinaeTag&(*)(T)> { typedef T Type; };
#define RAPIDJSON_REMOVEFPTR_(type) \
typename ::RAPIDJSON_NAMESPACE::internal::RemoveSfinaeTag \
< ::RAPIDJSON_NAMESPACE::internal::SfinaeTag&(*) type>::Type
#define RAPIDJSON_ENABLEIF(cond) \
typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \
<RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL
#define RAPIDJSON_DISABLEIF(cond) \
typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \
<RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL
#define RAPIDJSON_ENABLEIF_RETURN(cond,returntype) \
typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \
<RAPIDJSON_REMOVEFPTR_(cond), \
RAPIDJSON_REMOVEFPTR_(returntype)>::Type
#define RAPIDJSON_DISABLEIF_RETURN(cond,returntype) \
typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \
<RAPIDJSON_REMOVEFPTR_(cond), \
RAPIDJSON_REMOVEFPTR_(returntype)>::Type
} // namespace internal
RAPIDJSON_NAMESPACE_END
//@endcond
#if defined(__GNUC__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_META_H_

110
external/rapidjson/internal/pow10.h vendored
View file

@ -1,55 +1,55 @@
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_POW10_
#define RAPIDJSON_POW10_
#include "../rapidjson.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Computes integer powers of 10 in double (10.0^n).
/*! This function uses lookup table for fast and accurate results.
\param n non-negative exponent. Must <= 308.
\return 10.0^n
*/
inline double Pow10(int n) {
static const double e[] = { // 1e-0...1e308: 309 * 8 bytes = 2472 bytes
1e+0,
1e+1, 1e+2, 1e+3, 1e+4, 1e+5, 1e+6, 1e+7, 1e+8, 1e+9, 1e+10, 1e+11, 1e+12, 1e+13, 1e+14, 1e+15, 1e+16, 1e+17, 1e+18, 1e+19, 1e+20,
1e+21, 1e+22, 1e+23, 1e+24, 1e+25, 1e+26, 1e+27, 1e+28, 1e+29, 1e+30, 1e+31, 1e+32, 1e+33, 1e+34, 1e+35, 1e+36, 1e+37, 1e+38, 1e+39, 1e+40,
1e+41, 1e+42, 1e+43, 1e+44, 1e+45, 1e+46, 1e+47, 1e+48, 1e+49, 1e+50, 1e+51, 1e+52, 1e+53, 1e+54, 1e+55, 1e+56, 1e+57, 1e+58, 1e+59, 1e+60,
1e+61, 1e+62, 1e+63, 1e+64, 1e+65, 1e+66, 1e+67, 1e+68, 1e+69, 1e+70, 1e+71, 1e+72, 1e+73, 1e+74, 1e+75, 1e+76, 1e+77, 1e+78, 1e+79, 1e+80,
1e+81, 1e+82, 1e+83, 1e+84, 1e+85, 1e+86, 1e+87, 1e+88, 1e+89, 1e+90, 1e+91, 1e+92, 1e+93, 1e+94, 1e+95, 1e+96, 1e+97, 1e+98, 1e+99, 1e+100,
1e+101,1e+102,1e+103,1e+104,1e+105,1e+106,1e+107,1e+108,1e+109,1e+110,1e+111,1e+112,1e+113,1e+114,1e+115,1e+116,1e+117,1e+118,1e+119,1e+120,
1e+121,1e+122,1e+123,1e+124,1e+125,1e+126,1e+127,1e+128,1e+129,1e+130,1e+131,1e+132,1e+133,1e+134,1e+135,1e+136,1e+137,1e+138,1e+139,1e+140,
1e+141,1e+142,1e+143,1e+144,1e+145,1e+146,1e+147,1e+148,1e+149,1e+150,1e+151,1e+152,1e+153,1e+154,1e+155,1e+156,1e+157,1e+158,1e+159,1e+160,
1e+161,1e+162,1e+163,1e+164,1e+165,1e+166,1e+167,1e+168,1e+169,1e+170,1e+171,1e+172,1e+173,1e+174,1e+175,1e+176,1e+177,1e+178,1e+179,1e+180,
1e+181,1e+182,1e+183,1e+184,1e+185,1e+186,1e+187,1e+188,1e+189,1e+190,1e+191,1e+192,1e+193,1e+194,1e+195,1e+196,1e+197,1e+198,1e+199,1e+200,
1e+201,1e+202,1e+203,1e+204,1e+205,1e+206,1e+207,1e+208,1e+209,1e+210,1e+211,1e+212,1e+213,1e+214,1e+215,1e+216,1e+217,1e+218,1e+219,1e+220,
1e+221,1e+222,1e+223,1e+224,1e+225,1e+226,1e+227,1e+228,1e+229,1e+230,1e+231,1e+232,1e+233,1e+234,1e+235,1e+236,1e+237,1e+238,1e+239,1e+240,
1e+241,1e+242,1e+243,1e+244,1e+245,1e+246,1e+247,1e+248,1e+249,1e+250,1e+251,1e+252,1e+253,1e+254,1e+255,1e+256,1e+257,1e+258,1e+259,1e+260,
1e+261,1e+262,1e+263,1e+264,1e+265,1e+266,1e+267,1e+268,1e+269,1e+270,1e+271,1e+272,1e+273,1e+274,1e+275,1e+276,1e+277,1e+278,1e+279,1e+280,
1e+281,1e+282,1e+283,1e+284,1e+285,1e+286,1e+287,1e+288,1e+289,1e+290,1e+291,1e+292,1e+293,1e+294,1e+295,1e+296,1e+297,1e+298,1e+299,1e+300,
1e+301,1e+302,1e+303,1e+304,1e+305,1e+306,1e+307,1e+308
};
RAPIDJSON_ASSERT(n >= 0 && n <= 308);
return e[n];
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_POW10_
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_POW10_
#define RAPIDJSON_POW10_
#include "../rapidjson.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Computes integer powers of 10 in double (10.0^n).
/*! This function uses lookup table for fast and accurate results.
\param n non-negative exponent. Must <= 308.
\return 10.0^n
*/
inline double Pow10(int n) {
static const double e[] = { // 1e-0...1e308: 309 * 8 bytes = 2472 bytes
1e+0,
1e+1, 1e+2, 1e+3, 1e+4, 1e+5, 1e+6, 1e+7, 1e+8, 1e+9, 1e+10, 1e+11, 1e+12, 1e+13, 1e+14, 1e+15, 1e+16, 1e+17, 1e+18, 1e+19, 1e+20,
1e+21, 1e+22, 1e+23, 1e+24, 1e+25, 1e+26, 1e+27, 1e+28, 1e+29, 1e+30, 1e+31, 1e+32, 1e+33, 1e+34, 1e+35, 1e+36, 1e+37, 1e+38, 1e+39, 1e+40,
1e+41, 1e+42, 1e+43, 1e+44, 1e+45, 1e+46, 1e+47, 1e+48, 1e+49, 1e+50, 1e+51, 1e+52, 1e+53, 1e+54, 1e+55, 1e+56, 1e+57, 1e+58, 1e+59, 1e+60,
1e+61, 1e+62, 1e+63, 1e+64, 1e+65, 1e+66, 1e+67, 1e+68, 1e+69, 1e+70, 1e+71, 1e+72, 1e+73, 1e+74, 1e+75, 1e+76, 1e+77, 1e+78, 1e+79, 1e+80,
1e+81, 1e+82, 1e+83, 1e+84, 1e+85, 1e+86, 1e+87, 1e+88, 1e+89, 1e+90, 1e+91, 1e+92, 1e+93, 1e+94, 1e+95, 1e+96, 1e+97, 1e+98, 1e+99, 1e+100,
1e+101,1e+102,1e+103,1e+104,1e+105,1e+106,1e+107,1e+108,1e+109,1e+110,1e+111,1e+112,1e+113,1e+114,1e+115,1e+116,1e+117,1e+118,1e+119,1e+120,
1e+121,1e+122,1e+123,1e+124,1e+125,1e+126,1e+127,1e+128,1e+129,1e+130,1e+131,1e+132,1e+133,1e+134,1e+135,1e+136,1e+137,1e+138,1e+139,1e+140,
1e+141,1e+142,1e+143,1e+144,1e+145,1e+146,1e+147,1e+148,1e+149,1e+150,1e+151,1e+152,1e+153,1e+154,1e+155,1e+156,1e+157,1e+158,1e+159,1e+160,
1e+161,1e+162,1e+163,1e+164,1e+165,1e+166,1e+167,1e+168,1e+169,1e+170,1e+171,1e+172,1e+173,1e+174,1e+175,1e+176,1e+177,1e+178,1e+179,1e+180,
1e+181,1e+182,1e+183,1e+184,1e+185,1e+186,1e+187,1e+188,1e+189,1e+190,1e+191,1e+192,1e+193,1e+194,1e+195,1e+196,1e+197,1e+198,1e+199,1e+200,
1e+201,1e+202,1e+203,1e+204,1e+205,1e+206,1e+207,1e+208,1e+209,1e+210,1e+211,1e+212,1e+213,1e+214,1e+215,1e+216,1e+217,1e+218,1e+219,1e+220,
1e+221,1e+222,1e+223,1e+224,1e+225,1e+226,1e+227,1e+228,1e+229,1e+230,1e+231,1e+232,1e+233,1e+234,1e+235,1e+236,1e+237,1e+238,1e+239,1e+240,
1e+241,1e+242,1e+243,1e+244,1e+245,1e+246,1e+247,1e+248,1e+249,1e+250,1e+251,1e+252,1e+253,1e+254,1e+255,1e+256,1e+257,1e+258,1e+259,1e+260,
1e+261,1e+262,1e+263,1e+264,1e+265,1e+266,1e+267,1e+268,1e+269,1e+270,1e+271,1e+272,1e+273,1e+274,1e+275,1e+276,1e+277,1e+278,1e+279,1e+280,
1e+281,1e+282,1e+283,1e+284,1e+285,1e+286,1e+287,1e+288,1e+289,1e+290,1e+291,1e+292,1e+293,1e+294,1e+295,1e+296,1e+297,1e+298,1e+299,1e+300,
1e+301,1e+302,1e+303,1e+304,1e+305,1e+306,1e+307,1e+308
};
RAPIDJSON_ASSERT(n >= 0 && n <= 308);
return e[n];
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_POW10_

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// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_REGEX_H_
#define RAPIDJSON_INTERNAL_REGEX_H_
#include "../allocators.h"
#include "../stream.h"
#include "stack.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(switch-enum)
RAPIDJSON_DIAG_OFF(implicit-fallthrough)
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
#ifndef RAPIDJSON_REGEX_VERBOSE
#define RAPIDJSON_REGEX_VERBOSE 0
#endif
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
///////////////////////////////////////////////////////////////////////////////
// DecodedStream
template <typename SourceStream, typename Encoding>
class DecodedStream {
public:
DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); }
unsigned Peek() { return codepoint_; }
unsigned Take() {
unsigned c = codepoint_;
if (c) // No further decoding when '\0'
Decode();
return c;
}
private:
void Decode() {
if (!Encoding::Decode(ss_, &codepoint_))
codepoint_ = 0;
}
SourceStream& ss_;
unsigned codepoint_;
};
///////////////////////////////////////////////////////////////////////////////
// GenericRegex
static const SizeType kRegexInvalidState = ~SizeType(0); //!< Represents an invalid index in GenericRegex::State::out, out1
static const SizeType kRegexInvalidRange = ~SizeType(0);
template <typename Encoding, typename Allocator>
class GenericRegexSearch;
//! Regular expression engine with subset of ECMAscript grammar.
/*!
Supported regular expression syntax:
- \c ab Concatenation
- \c a|b Alternation
- \c a? Zero or one
- \c a* Zero or more
- \c a+ One or more
- \c a{3} Exactly 3 times
- \c a{3,} At least 3 times
- \c a{3,5} 3 to 5 times
- \c (ab) Grouping
- \c ^a At the beginning
- \c a$ At the end
- \c . Any character
- \c [abc] Character classes
- \c [a-c] Character class range
- \c [a-z0-9_] Character class combination
- \c [^abc] Negated character classes
- \c [^a-c] Negated character class range
- \c [\b] Backspace (U+0008)
- \c \\| \\\\ ... Escape characters
- \c \\f Form feed (U+000C)
- \c \\n Line feed (U+000A)
- \c \\r Carriage return (U+000D)
- \c \\t Tab (U+0009)
- \c \\v Vertical tab (U+000B)
\note This is a Thompson NFA engine, implemented with reference to
Cox, Russ. "Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby,...).",
https://swtch.com/~rsc/regexp/regexp1.html
*/
template <typename Encoding, typename Allocator = CrtAllocator>
class GenericRegex {
public:
typedef Encoding EncodingType;
typedef typename Encoding::Ch Ch;
template <typename, typename> friend class GenericRegexSearch;
GenericRegex(const Ch* source, Allocator* allocator = 0) :
states_(allocator, 256), ranges_(allocator, 256), root_(kRegexInvalidState), stateCount_(), rangeCount_(),
anchorBegin_(), anchorEnd_()
{
GenericStringStream<Encoding> ss(source);
DecodedStream<GenericStringStream<Encoding>, Encoding> ds(ss);
Parse(ds);
}
~GenericRegex() {}
bool IsValid() const {
return root_ != kRegexInvalidState;
}
private:
enum Operator {
kZeroOrOne,
kZeroOrMore,
kOneOrMore,
kConcatenation,
kAlternation,
kLeftParenthesis
};
static const unsigned kAnyCharacterClass = 0xFFFFFFFF; //!< For '.'
static const unsigned kRangeCharacterClass = 0xFFFFFFFE;
static const unsigned kRangeNegationFlag = 0x80000000;
struct Range {
unsigned start; //
unsigned end;
SizeType next;
};
struct State {
SizeType out; //!< Equals to kInvalid for matching state
SizeType out1; //!< Equals to non-kInvalid for split
SizeType rangeStart;
unsigned codepoint;
};
struct Frag {
Frag(SizeType s, SizeType o, SizeType m) : start(s), out(o), minIndex(m) {}
SizeType start;
SizeType out; //!< link-list of all output states
SizeType minIndex;
};
State& GetState(SizeType index) {
RAPIDJSON_ASSERT(index < stateCount_);
return states_.template Bottom<State>()[index];
}
const State& GetState(SizeType index) const {
RAPIDJSON_ASSERT(index < stateCount_);
return states_.template Bottom<State>()[index];
}
Range& GetRange(SizeType index) {
RAPIDJSON_ASSERT(index < rangeCount_);
return ranges_.template Bottom<Range>()[index];
}
const Range& GetRange(SizeType index) const {
RAPIDJSON_ASSERT(index < rangeCount_);
return ranges_.template Bottom<Range>()[index];
}
template <typename InputStream>
void Parse(DecodedStream<InputStream, Encoding>& ds) {
Allocator allocator;
Stack<Allocator> operandStack(&allocator, 256); // Frag
Stack<Allocator> operatorStack(&allocator, 256); // Operator
Stack<Allocator> atomCountStack(&allocator, 256); // unsigned (Atom per parenthesis)
*atomCountStack.template Push<unsigned>() = 0;
unsigned codepoint;
while (ds.Peek() != 0) {
switch (codepoint = ds.Take()) {
case '^':
anchorBegin_ = true;
break;
case '$':
anchorEnd_ = true;
break;
case '|':
while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() < kAlternation)
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
*operatorStack.template Push<Operator>() = kAlternation;
*atomCountStack.template Top<unsigned>() = 0;
break;
case '(':
*operatorStack.template Push<Operator>() = kLeftParenthesis;
*atomCountStack.template Push<unsigned>() = 0;
break;
case ')':
while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() != kLeftParenthesis)
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
if (operatorStack.Empty())
return;
operatorStack.template Pop<Operator>(1);
atomCountStack.template Pop<unsigned>(1);
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '?':
if (!Eval(operandStack, kZeroOrOne))
return;
break;
case '*':
if (!Eval(operandStack, kZeroOrMore))
return;
break;
case '+':
if (!Eval(operandStack, kOneOrMore))
return;
break;
case '{':
{
unsigned n, m;
if (!ParseUnsigned(ds, &n))
return;
if (ds.Peek() == ',') {
ds.Take();
if (ds.Peek() == '}')
m = kInfinityQuantifier;
else if (!ParseUnsigned(ds, &m) || m < n)
return;
}
else
m = n;
if (!EvalQuantifier(operandStack, n, m) || ds.Peek() != '}')
return;
ds.Take();
}
break;
case '.':
PushOperand(operandStack, kAnyCharacterClass);
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '[':
{
SizeType range;
if (!ParseRange(ds, &range))
return;
SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, kRangeCharacterClass);
GetState(s).rangeStart = range;
*operandStack.template Push<Frag>() = Frag(s, s, s);
}
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '\\': // Escape character
if (!CharacterEscape(ds, &codepoint))
return; // Unsupported escape character
// fall through to default
default: // Pattern character
PushOperand(operandStack, codepoint);
ImplicitConcatenation(atomCountStack, operatorStack);
}
}
while (!operatorStack.Empty())
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
// Link the operand to matching state.
if (operandStack.GetSize() == sizeof(Frag)) {
Frag* e = operandStack.template Pop<Frag>(1);
Patch(e->out, NewState(kRegexInvalidState, kRegexInvalidState, 0));
root_ = e->start;
#if RAPIDJSON_REGEX_VERBOSE
printf("root: %d\n", root_);
for (SizeType i = 0; i < stateCount_ ; i++) {
State& s = GetState(i);
printf("[%2d] out: %2d out1: %2d c: '%c'\n", i, s.out, s.out1, (char)s.codepoint);
}
printf("\n");
#endif
}
}
SizeType NewState(SizeType out, SizeType out1, unsigned codepoint) {
State* s = states_.template Push<State>();
s->out = out;
s->out1 = out1;
s->codepoint = codepoint;
s->rangeStart = kRegexInvalidRange;
return stateCount_++;
}
void PushOperand(Stack<Allocator>& operandStack, unsigned codepoint) {
SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, codepoint);
*operandStack.template Push<Frag>() = Frag(s, s, s);
}
void ImplicitConcatenation(Stack<Allocator>& atomCountStack, Stack<Allocator>& operatorStack) {
if (*atomCountStack.template Top<unsigned>())
*operatorStack.template Push<Operator>() = kConcatenation;
(*atomCountStack.template Top<unsigned>())++;
}
SizeType Append(SizeType l1, SizeType l2) {
SizeType old = l1;
while (GetState(l1).out != kRegexInvalidState)
l1 = GetState(l1).out;
GetState(l1).out = l2;
return old;
}
void Patch(SizeType l, SizeType s) {
for (SizeType next; l != kRegexInvalidState; l = next) {
next = GetState(l).out;
GetState(l).out = s;
}
}
bool Eval(Stack<Allocator>& operandStack, Operator op) {
switch (op) {
case kConcatenation:
RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag) * 2);
{
Frag e2 = *operandStack.template Pop<Frag>(1);
Frag e1 = *operandStack.template Pop<Frag>(1);
Patch(e1.out, e2.start);
*operandStack.template Push<Frag>() = Frag(e1.start, e2.out, Min(e1.minIndex, e2.minIndex));
}
return true;
case kAlternation:
if (operandStack.GetSize() >= sizeof(Frag) * 2) {
Frag e2 = *operandStack.template Pop<Frag>(1);
Frag e1 = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(e1.start, e2.start, 0);
*operandStack.template Push<Frag>() = Frag(s, Append(e1.out, e2.out), Min(e1.minIndex, e2.minIndex));
return true;
}
return false;
case kZeroOrOne:
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
*operandStack.template Push<Frag>() = Frag(s, Append(e.out, s), e.minIndex);
return true;
}
return false;
case kZeroOrMore:
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
Patch(e.out, s);
*operandStack.template Push<Frag>() = Frag(s, s, e.minIndex);
return true;
}
return false;
default:
RAPIDJSON_ASSERT(op == kOneOrMore);
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
Patch(e.out, s);
*operandStack.template Push<Frag>() = Frag(e.start, s, e.minIndex);
return true;
}
return false;
}
}
bool EvalQuantifier(Stack<Allocator>& operandStack, unsigned n, unsigned m) {
RAPIDJSON_ASSERT(n <= m);
RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag));
if (n == 0) {
if (m == 0) // a{0} not support
return false;
else if (m == kInfinityQuantifier)
Eval(operandStack, kZeroOrMore); // a{0,} -> a*
else {
Eval(operandStack, kZeroOrOne); // a{0,5} -> a?
for (unsigned i = 0; i < m - 1; i++)
CloneTopOperand(operandStack); // a{0,5} -> a? a? a? a? a?
for (unsigned i = 0; i < m - 1; i++)
Eval(operandStack, kConcatenation); // a{0,5} -> a?a?a?a?a?
}
return true;
}
for (unsigned i = 0; i < n - 1; i++) // a{3} -> a a a
CloneTopOperand(operandStack);
if (m == kInfinityQuantifier)
Eval(operandStack, kOneOrMore); // a{3,} -> a a a+
else if (m > n) {
CloneTopOperand(operandStack); // a{3,5} -> a a a a
Eval(operandStack, kZeroOrOne); // a{3,5} -> a a a a?
for (unsigned i = n; i < m - 1; i++)
CloneTopOperand(operandStack); // a{3,5} -> a a a a? a?
for (unsigned i = n; i < m; i++)
Eval(operandStack, kConcatenation); // a{3,5} -> a a aa?a?
}
for (unsigned i = 0; i < n - 1; i++)
Eval(operandStack, kConcatenation); // a{3} -> aaa, a{3,} -> aaa+, a{3.5} -> aaaa?a?
return true;
}
static SizeType Min(SizeType a, SizeType b) { return a < b ? a : b; }
void CloneTopOperand(Stack<Allocator>& operandStack) {
const Frag src = *operandStack.template Top<Frag>(); // Copy constructor to prevent invalidation
SizeType count = stateCount_ - src.minIndex; // Assumes top operand contains states in [src->minIndex, stateCount_)
State* s = states_.template Push<State>(count);
memcpy(s, &GetState(src.minIndex), count * sizeof(State));
for (SizeType j = 0; j < count; j++) {
if (s[j].out != kRegexInvalidState)
s[j].out += count;
if (s[j].out1 != kRegexInvalidState)
s[j].out1 += count;
}
*operandStack.template Push<Frag>() = Frag(src.start + count, src.out + count, src.minIndex + count);
stateCount_ += count;
}
template <typename InputStream>
bool ParseUnsigned(DecodedStream<InputStream, Encoding>& ds, unsigned* u) {
unsigned r = 0;
if (ds.Peek() < '0' || ds.Peek() > '9')
return false;
while (ds.Peek() >= '0' && ds.Peek() <= '9') {
if (r >= 429496729 && ds.Peek() > '5') // 2^32 - 1 = 4294967295
return false; // overflow
r = r * 10 + (ds.Take() - '0');
}
*u = r;
return true;
}
template <typename InputStream>
bool ParseRange(DecodedStream<InputStream, Encoding>& ds, SizeType* range) {
bool isBegin = true;
bool negate = false;
int step = 0;
SizeType start = kRegexInvalidRange;
SizeType current = kRegexInvalidRange;
unsigned codepoint;
while ((codepoint = ds.Take()) != 0) {
if (isBegin) {
isBegin = false;
if (codepoint == '^') {
negate = true;
continue;
}
}
switch (codepoint) {
case ']':
if (start == kRegexInvalidRange)
return false; // Error: nothing inside []
if (step == 2) { // Add trailing '-'
SizeType r = NewRange('-');
RAPIDJSON_ASSERT(current != kRegexInvalidRange);
GetRange(current).next = r;
}
if (negate)
GetRange(start).start |= kRangeNegationFlag;
*range = start;
return true;
case '\\':
if (ds.Peek() == 'b') {
ds.Take();
codepoint = 0x0008; // Escape backspace character
}
else if (!CharacterEscape(ds, &codepoint))
return false;
// fall through to default
default:
switch (step) {
case 1:
if (codepoint == '-') {
step++;
break;
}
// fall through to step 0 for other characters
case 0:
{
SizeType r = NewRange(codepoint);
if (current != kRegexInvalidRange)
GetRange(current).next = r;
if (start == kRegexInvalidRange)
start = r;
current = r;
}
step = 1;
break;
default:
RAPIDJSON_ASSERT(step == 2);
GetRange(current).end = codepoint;
step = 0;
}
}
}
return false;
}
SizeType NewRange(unsigned codepoint) {
Range* r = ranges_.template Push<Range>();
r->start = r->end = codepoint;
r->next = kRegexInvalidRange;
return rangeCount_++;
}
template <typename InputStream>
bool CharacterEscape(DecodedStream<InputStream, Encoding>& ds, unsigned* escapedCodepoint) {
unsigned codepoint;
switch (codepoint = ds.Take()) {
case '^':
case '$':
case '|':
case '(':
case ')':
case '?':
case '*':
case '+':
case '.':
case '[':
case ']':
case '{':
case '}':
case '\\':
*escapedCodepoint = codepoint; return true;
case 'f': *escapedCodepoint = 0x000C; return true;
case 'n': *escapedCodepoint = 0x000A; return true;
case 'r': *escapedCodepoint = 0x000D; return true;
case 't': *escapedCodepoint = 0x0009; return true;
case 'v': *escapedCodepoint = 0x000B; return true;
default:
return false; // Unsupported escape character
}
}
Stack<Allocator> states_;
Stack<Allocator> ranges_;
SizeType root_;
SizeType stateCount_;
SizeType rangeCount_;
static const unsigned kInfinityQuantifier = ~0u;
// For SearchWithAnchoring()
bool anchorBegin_;
bool anchorEnd_;
};
template <typename RegexType, typename Allocator = CrtAllocator>
class GenericRegexSearch {
public:
typedef typename RegexType::EncodingType Encoding;
typedef typename Encoding::Ch Ch;
GenericRegexSearch(const RegexType& regex, Allocator* allocator = 0) :
regex_(regex), allocator_(allocator), ownAllocator_(0),
state0_(allocator, 0), state1_(allocator, 0), stateSet_()
{
RAPIDJSON_ASSERT(regex_.IsValid());
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
stateSet_ = static_cast<unsigned*>(allocator_->Malloc(GetStateSetSize()));
state0_.template Reserve<SizeType>(regex_.stateCount_);
state1_.template Reserve<SizeType>(regex_.stateCount_);
}
~GenericRegexSearch() {
Allocator::Free(stateSet_);
RAPIDJSON_DELETE(ownAllocator_);
}
template <typename InputStream>
bool Match(InputStream& is) {
return SearchWithAnchoring(is, true, true);
}
bool Match(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Match(is);
}
template <typename InputStream>
bool Search(InputStream& is) {
return SearchWithAnchoring(is, regex_.anchorBegin_, regex_.anchorEnd_);
}
bool Search(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Search(is);
}
private:
typedef typename RegexType::State State;
typedef typename RegexType::Range Range;
template <typename InputStream>
bool SearchWithAnchoring(InputStream& is, bool anchorBegin, bool anchorEnd) {
DecodedStream<InputStream, Encoding> ds(is);
state0_.Clear();
Stack<Allocator> *current = &state0_, *next = &state1_;
const size_t stateSetSize = GetStateSetSize();
std::memset(stateSet_, 0, stateSetSize);
bool matched = AddState(*current, regex_.root_);
unsigned codepoint;
while (!current->Empty() && (codepoint = ds.Take()) != 0) {
std::memset(stateSet_, 0, stateSetSize);
next->Clear();
matched = false;
for (const SizeType* s = current->template Bottom<SizeType>(); s != current->template End<SizeType>(); ++s) {
const State& sr = regex_.GetState(*s);
if (sr.codepoint == codepoint ||
sr.codepoint == RegexType::kAnyCharacterClass ||
(sr.codepoint == RegexType::kRangeCharacterClass && MatchRange(sr.rangeStart, codepoint)))
{
matched = AddState(*next, sr.out) || matched;
if (!anchorEnd && matched)
return true;
}
if (!anchorBegin)
AddState(*next, regex_.root_);
}
internal::Swap(current, next);
}
return matched;
}
size_t GetStateSetSize() const {
return (regex_.stateCount_ + 31) / 32 * 4;
}
// Return whether the added states is a match state
bool AddState(Stack<Allocator>& l, SizeType index) {
RAPIDJSON_ASSERT(index != kRegexInvalidState);
const State& s = regex_.GetState(index);
if (s.out1 != kRegexInvalidState) { // Split
bool matched = AddState(l, s.out);
return AddState(l, s.out1) || matched;
}
else if (!(stateSet_[index >> 5] & (1 << (index & 31)))) {
stateSet_[index >> 5] |= (1 << (index & 31));
*l.template PushUnsafe<SizeType>() = index;
}
return s.out == kRegexInvalidState; // by using PushUnsafe() above, we can ensure s is not validated due to reallocation.
}
bool MatchRange(SizeType rangeIndex, unsigned codepoint) const {
bool yes = (regex_.GetRange(rangeIndex).start & RegexType::kRangeNegationFlag) == 0;
while (rangeIndex != kRegexInvalidRange) {
const Range& r = regex_.GetRange(rangeIndex);
if (codepoint >= (r.start & ~RegexType::kRangeNegationFlag) && codepoint <= r.end)
return yes;
rangeIndex = r.next;
}
return !yes;
}
const RegexType& regex_;
Allocator* allocator_;
Allocator* ownAllocator_;
Stack<Allocator> state0_;
Stack<Allocator> state1_;
uint32_t* stateSet_;
};
typedef GenericRegex<UTF8<> > Regex;
typedef GenericRegexSearch<Regex> RegexSearch;
} // namespace internal
RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_REGEX_H_

426
external/rapidjson/internal/stack.h vendored
View file

@ -1,196 +1,230 @@
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_STACK_H_
#define RAPIDJSON_INTERNAL_STACK_H_
#include "../rapidjson.h"
#include "swap.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
///////////////////////////////////////////////////////////////////////////////
// Stack
//! A type-unsafe stack for storing different types of data.
/*! \tparam Allocator Allocator for allocating stack memory.
*/
template <typename Allocator>
class Stack {
public:
// Optimization note: Do not allocate memory for stack_ in constructor.
// Do it lazily when first Push() -> Expand() -> Resize().
Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) {
RAPIDJSON_ASSERT(stackCapacity > 0);
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Stack(Stack&& rhs)
: allocator_(rhs.allocator_),
ownAllocator_(rhs.ownAllocator_),
stack_(rhs.stack_),
stackTop_(rhs.stackTop_),
stackEnd_(rhs.stackEnd_),
initialCapacity_(rhs.initialCapacity_)
{
rhs.allocator_ = 0;
rhs.ownAllocator_ = 0;
rhs.stack_ = 0;
rhs.stackTop_ = 0;
rhs.stackEnd_ = 0;
rhs.initialCapacity_ = 0;
}
#endif
~Stack() {
Destroy();
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Stack& operator=(Stack&& rhs) {
if (&rhs != this)
{
Destroy();
allocator_ = rhs.allocator_;
ownAllocator_ = rhs.ownAllocator_;
stack_ = rhs.stack_;
stackTop_ = rhs.stackTop_;
stackEnd_ = rhs.stackEnd_;
initialCapacity_ = rhs.initialCapacity_;
rhs.allocator_ = 0;
rhs.ownAllocator_ = 0;
rhs.stack_ = 0;
rhs.stackTop_ = 0;
rhs.stackEnd_ = 0;
rhs.initialCapacity_ = 0;
}
return *this;
}
#endif
void Swap(Stack& rhs) RAPIDJSON_NOEXCEPT {
internal::Swap(allocator_, rhs.allocator_);
internal::Swap(ownAllocator_, rhs.ownAllocator_);
internal::Swap(stack_, rhs.stack_);
internal::Swap(stackTop_, rhs.stackTop_);
internal::Swap(stackEnd_, rhs.stackEnd_);
internal::Swap(initialCapacity_, rhs.initialCapacity_);
}
void Clear() { stackTop_ = stack_; }
void ShrinkToFit() {
if (Empty()) {
// If the stack is empty, completely deallocate the memory.
Allocator::Free(stack_);
stack_ = 0;
stackTop_ = 0;
stackEnd_ = 0;
}
else
Resize(GetSize());
}
// Optimization note: try to minimize the size of this function for force inline.
// Expansion is run very infrequently, so it is moved to another (probably non-inline) function.
template<typename T>
RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
// Expand the stack if needed
if (stackTop_ + sizeof(T) * count >= stackEnd_)
Expand<T>(count);
T* ret = reinterpret_cast<T*>(stackTop_);
stackTop_ += sizeof(T) * count;
return ret;
}
template<typename T>
T* Pop(size_t count) {
RAPIDJSON_ASSERT(GetSize() >= count * sizeof(T));
stackTop_ -= count * sizeof(T);
return reinterpret_cast<T*>(stackTop_);
}
template<typename T>
T* Top() {
RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
return reinterpret_cast<T*>(stackTop_ - sizeof(T));
}
template<typename T>
T* Bottom() { return reinterpret_cast<T*>(stack_); }
bool HasAllocator() const {
return allocator_ != 0;
}
Allocator& GetAllocator() {
RAPIDJSON_ASSERT(allocator_);
return *allocator_;
}
bool Empty() const { return stackTop_ == stack_; }
size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); }
size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); }
private:
template<typename T>
void Expand(size_t count) {
// Only expand the capacity if the current stack exists. Otherwise just create a stack with initial capacity.
size_t newCapacity;
if (stack_ == 0) {
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
newCapacity = initialCapacity_;
} else {
newCapacity = GetCapacity();
newCapacity += (newCapacity + 1) / 2;
}
size_t newSize = GetSize() + sizeof(T) * count;
if (newCapacity < newSize)
newCapacity = newSize;
Resize(newCapacity);
}
void Resize(size_t newCapacity) {
const size_t size = GetSize(); // Backup the current size
stack_ = static_cast<char*>(allocator_->Realloc(stack_, GetCapacity(), newCapacity));
stackTop_ = stack_ + size;
stackEnd_ = stack_ + newCapacity;
}
void Destroy() {
Allocator::Free(stack_);
RAPIDJSON_DELETE(ownAllocator_); // Only delete if it is owned by the stack
}
// Prohibit copy constructor & assignment operator.
Stack(const Stack&);
Stack& operator=(const Stack&);
Allocator* allocator_;
Allocator* ownAllocator_;
char *stack_;
char *stackTop_;
char *stackEnd_;
size_t initialCapacity_;
};
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_STACK_H_
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_STACK_H_
#define RAPIDJSON_INTERNAL_STACK_H_
#include "../allocators.h"
#include "swap.h"
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
///////////////////////////////////////////////////////////////////////////////
// Stack
//! A type-unsafe stack for storing different types of data.
/*! \tparam Allocator Allocator for allocating stack memory.
*/
template <typename Allocator>
class Stack {
public:
// Optimization note: Do not allocate memory for stack_ in constructor.
// Do it lazily when first Push() -> Expand() -> Resize().
Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) {
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Stack(Stack&& rhs)
: allocator_(rhs.allocator_),
ownAllocator_(rhs.ownAllocator_),
stack_(rhs.stack_),
stackTop_(rhs.stackTop_),
stackEnd_(rhs.stackEnd_),
initialCapacity_(rhs.initialCapacity_)
{
rhs.allocator_ = 0;
rhs.ownAllocator_ = 0;
rhs.stack_ = 0;
rhs.stackTop_ = 0;
rhs.stackEnd_ = 0;
rhs.initialCapacity_ = 0;
}
#endif
~Stack() {
Destroy();
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Stack& operator=(Stack&& rhs) {
if (&rhs != this)
{
Destroy();
allocator_ = rhs.allocator_;
ownAllocator_ = rhs.ownAllocator_;
stack_ = rhs.stack_;
stackTop_ = rhs.stackTop_;
stackEnd_ = rhs.stackEnd_;
initialCapacity_ = rhs.initialCapacity_;
rhs.allocator_ = 0;
rhs.ownAllocator_ = 0;
rhs.stack_ = 0;
rhs.stackTop_ = 0;
rhs.stackEnd_ = 0;
rhs.initialCapacity_ = 0;
}
return *this;
}
#endif
void Swap(Stack& rhs) RAPIDJSON_NOEXCEPT {
internal::Swap(allocator_, rhs.allocator_);
internal::Swap(ownAllocator_, rhs.ownAllocator_);
internal::Swap(stack_, rhs.stack_);
internal::Swap(stackTop_, rhs.stackTop_);
internal::Swap(stackEnd_, rhs.stackEnd_);
internal::Swap(initialCapacity_, rhs.initialCapacity_);
}
void Clear() { stackTop_ = stack_; }
void ShrinkToFit() {
if (Empty()) {
// If the stack is empty, completely deallocate the memory.
Allocator::Free(stack_);
stack_ = 0;
stackTop_ = 0;
stackEnd_ = 0;
}
else
Resize(GetSize());
}
// Optimization note: try to minimize the size of this function for force inline.
// Expansion is run very infrequently, so it is moved to another (probably non-inline) function.
template<typename T>
RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) {
// Expand the stack if needed
if (RAPIDJSON_UNLIKELY(stackTop_ + sizeof(T) * count > stackEnd_))
Expand<T>(count);
}
template<typename T>
RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
Reserve<T>(count);
return PushUnsafe<T>(count);
}
template<typename T>
RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) {
RAPIDJSON_ASSERT(stackTop_ + sizeof(T) * count <= stackEnd_);
T* ret = reinterpret_cast<T*>(stackTop_);
stackTop_ += sizeof(T) * count;
return ret;
}
template<typename T>
T* Pop(size_t count) {
RAPIDJSON_ASSERT(GetSize() >= count * sizeof(T));
stackTop_ -= count * sizeof(T);
return reinterpret_cast<T*>(stackTop_);
}
template<typename T>
T* Top() {
RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
return reinterpret_cast<T*>(stackTop_ - sizeof(T));
}
template<typename T>
const T* Top() const {
RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
return reinterpret_cast<T*>(stackTop_ - sizeof(T));
}
template<typename T>
T* End() { return reinterpret_cast<T*>(stackTop_); }
template<typename T>
const T* End() const { return reinterpret_cast<T*>(stackTop_); }
template<typename T>
T* Bottom() { return reinterpret_cast<T*>(stack_); }
template<typename T>
const T* Bottom() const { return reinterpret_cast<T*>(stack_); }
bool HasAllocator() const {
return allocator_ != 0;
}
Allocator& GetAllocator() {
RAPIDJSON_ASSERT(allocator_);
return *allocator_;
}
bool Empty() const { return stackTop_ == stack_; }
size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); }
size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); }
private:
template<typename T>
void Expand(size_t count) {
// Only expand the capacity if the current stack exists. Otherwise just create a stack with initial capacity.
size_t newCapacity;
if (stack_ == 0) {
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
newCapacity = initialCapacity_;
} else {
newCapacity = GetCapacity();
newCapacity += (newCapacity + 1) / 2;
}
size_t newSize = GetSize() + sizeof(T) * count;
if (newCapacity < newSize)
newCapacity = newSize;
Resize(newCapacity);
}
void Resize(size_t newCapacity) {
const size_t size = GetSize(); // Backup the current size
stack_ = static_cast<char*>(allocator_->Realloc(stack_, GetCapacity(), newCapacity));
stackTop_ = stack_ + size;
stackEnd_ = stack_ + newCapacity;
}
void Destroy() {
Allocator::Free(stack_);
RAPIDJSON_DELETE(ownAllocator_); // Only delete if it is owned by the stack
}
// Prohibit copy constructor & assignment operator.
Stack(const Stack&);
Stack& operator=(const Stack&);
Allocator* allocator_;
Allocator* ownAllocator_;
char *stack_;
char *stackTop_;
char *stackEnd_;
size_t initialCapacity_;
};
} // namespace internal
RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_STACK_H_

97
external/rapidjson/internal/strfunc.h vendored
View file

@ -1,39 +1,58 @@
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
#define RAPIDJSON_INTERNAL_STRFUNC_H_
#include "../rapidjson.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Custom strlen() which works on different character types.
/*! \tparam Ch Character type (e.g. char, wchar_t, short)
\param s Null-terminated input string.
\return Number of characters in the string.
\note This has the same semantics as strlen(), the return value is not number of Unicode codepoints.
*/
template <typename Ch>
inline SizeType StrLen(const Ch* s) {
const Ch* p = s;
while (*p) ++p;
return SizeType(p - s);
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_INTERNAL_STRFUNC_H_
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
#define RAPIDJSON_INTERNAL_STRFUNC_H_
#include "../stream.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Custom strlen() which works on different character types.
/*! \tparam Ch Character type (e.g. char, wchar_t, short)
\param s Null-terminated input string.
\return Number of characters in the string.
\note This has the same semantics as strlen(), the return value is not number of Unicode codepoints.
*/
template <typename Ch>
inline SizeType StrLen(const Ch* s) {
RAPIDJSON_ASSERT(s != 0);
const Ch* p = s;
while (*p) ++p;
return SizeType(p - s);
}
//! Returns number of code points in a encoded string.
template<typename Encoding>
bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) {
RAPIDJSON_ASSERT(s != 0);
RAPIDJSON_ASSERT(outCount != 0);
GenericStringStream<Encoding> is(s);
const typename Encoding::Ch* end = s + length;
SizeType count = 0;
while (is.src_ < end) {
unsigned codepoint;
if (!Encoding::Decode(is, &codepoint))
return false;
count++;
}
*outCount = count;
return true;
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_INTERNAL_STRFUNC_H_

3
external/rapidjson/internal/strtod.h vendored
View file

@ -15,7 +15,6 @@
#ifndef RAPIDJSON_STRTOD_
#define RAPIDJSON_STRTOD_
#include "../rapidjson.h"
#include "ieee754.h"
#include "biginteger.h"
#include "diyfp.h"
@ -143,7 +142,7 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
size_t remaining = length - i;
const unsigned kUlpShift = 3;
const unsigned kUlp = 1 << kUlpShift;
int error = (remaining == 0) ? 0 : kUlp / 2;
int64_t error = (remaining == 0) ? 0 : kUlp / 2;
DiyFp v(significand, 0);
v = v.Normalize();

83
external/rapidjson/internal/swap.h vendored
View file

@ -1,37 +1,46 @@
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_SWAP_H_
#define RAPIDJSON_INTERNAL_SWAP_H_
#include "../rapidjson.h"
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Custom swap() to avoid dependency on C++ <algorithm> header
/*! \tparam T Type of the arguments to swap, should be instantiated with primitive C++ types only.
\note This has the same semantics as std::swap().
*/
template <typename T>
inline void Swap(T& a, T& b) RAPIDJSON_NOEXCEPT {
T tmp = a;
a = b;
b = tmp;
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_INTERNAL_SWAP_H_
// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_INTERNAL_SWAP_H_
#define RAPIDJSON_INTERNAL_SWAP_H_
#include "../rapidjson.h"
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
//! Custom swap() to avoid dependency on C++ <algorithm> header
/*! \tparam T Type of the arguments to swap, should be instantiated with primitive C++ types only.
\note This has the same semantics as std::swap().
*/
template <typename T>
inline void Swap(T& a, T& b) RAPIDJSON_NOEXCEPT {
T tmp = a;
a = b;
b = tmp;
}
} // namespace internal
RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_SWAP_H_