monero/src/crypto/generic-ops.h
2014-03-03 22:07:58 +00:00

37 lines
1.1 KiB
C++

// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#pragma once
#include <cstddef>
#include <cstring>
#include <functional>
#define CRYPTO_MAKE_COMPARABLE(type) \
namespace crypto { \
inline bool operator==(const type &_v1, const type &_v2) { \
return std::memcmp(&_v1, &_v2, sizeof(type)) == 0; \
} \
inline bool operator!=(const type &_v1, const type &_v2) { \
return std::memcmp(&_v1, &_v2, sizeof(type)) != 0; \
} \
}
#define CRYPTO_MAKE_HASHABLE(type) \
CRYPTO_MAKE_COMPARABLE(type) \
namespace crypto { \
static_assert(sizeof(std::size_t) <= sizeof(type), "Size of " #type " must be at least that of size_t"); \
inline std::size_t hash_value(const type &_v) { \
return reinterpret_cast<const std::size_t &>(_v); \
} \
} \
namespace std { \
template<> \
struct hash<crypto::type> { \
std::size_t operator()(const crypto::type &_v) const { \
return reinterpret_cast<const std::size_t &>(_v); \
} \
}; \
}