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62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <cstddef>
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#include <cstring>
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#include <functional>
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#define CRYPTO_MAKE_COMPARABLE(type) \
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namespace crypto { \
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inline bool operator==(const type &_v1, const type &_v2) { \
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return std::memcmp(&_v1, &_v2, sizeof(type)) == 0; \
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} \
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inline bool operator!=(const type &_v1, const type &_v2) { \
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return std::memcmp(&_v1, &_v2, sizeof(type)) != 0; \
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} \
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}
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#define CRYPTO_MAKE_HASHABLE(type) \
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CRYPTO_MAKE_COMPARABLE(type) \
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namespace crypto { \
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static_assert(sizeof(std::size_t) <= sizeof(type), "Size of " #type " must be at least that of size_t"); \
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inline std::size_t hash_value(const type &_v) { \
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return reinterpret_cast<const std::size_t &>(_v); \
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} \
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} \
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namespace std { \
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template<> \
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struct hash<crypto::type> { \
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std::size_t operator()(const crypto::type &_v) const { \
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return reinterpret_cast<const std::size_t &>(_v); \
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} \
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}; \
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}
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