2018-12-27 18:50:45 +03:00
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// Copyright (c) 2014-2018 Zano Project
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// Copyright (c) 2014-2018 The Louisdor Project
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2025-09-25 18:18:41 +01:00
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// Copyright (c) 2012-2013 The Boolberry developers
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// Copyright (c) 2017-2025 Lethean (https://lt.hn)
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//
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// Licensed under the European Union Public Licence (EUPL) version 1.2.
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// You may obtain a copy of the licence at:
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//
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// https://joinup.ec.europa.eu/software/page/eupl/licence-eupl
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//
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// The EUPL is a copyleft licence that is compatible with the MIT/X11
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// licence used by the original projects; the MIT terms are therefore
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// considered “grandfathered” under the EUPL for this code.
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//
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// SPDX‑License‑Identifier: EUPL-1.2
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//
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2018-12-27 18:50:45 +03:00
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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 POD_MAKE_COMPARABLE(space, type) \
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namespace space { \
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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 POD_MAKE_LESS_OPERATOR(space, type) \
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namespace space { \
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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 POD_MAKE_HASHABLE(space, type) \
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POD_MAKE_COMPARABLE(space, type) \
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namespace space { \
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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<space::type> { \
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std::size_t operator()(const space::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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//
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// CONSTEXPR
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//
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#if ( defined(_MSC_VER) && (_MSC_VER < 1800) )
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#error MS compilers prior to v 18.00 (MSVC 2013) are not supported
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#endif
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// compilation workaround for MSVC 2013 Update 5 wich does not support constexpr
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#if ( defined(_MSC_VER) && (1800 <= _MSC_VER) && (_MSC_VER < 1900) )
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#define CONSTEXPR
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#else // all other platforms or MSVC 2015 and later
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#define CONSTEXPR constexpr
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#endif
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