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109 lines
2.1 KiB
C++
109 lines
2.1 KiB
C++
// Copyright (c) 2014-present The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_CRYPTO_COMMON_H
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#define BITCOIN_CRYPTO_COMMON_H
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#include <compat/endian.h>
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#include <concepts>
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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template <typename B>
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concept ByteType = std::same_as<B, unsigned char> || std::same_as<B, std::byte>;
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template <ByteType B>
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inline uint16_t ReadLE16(const B* ptr)
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{
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uint16_t x;
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memcpy(&x, ptr, 2);
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return le16toh_internal(x);
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}
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template <ByteType B>
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inline uint32_t ReadLE32(const B* ptr)
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{
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uint32_t x;
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memcpy(&x, ptr, 4);
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return le32toh_internal(x);
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}
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template <ByteType B>
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inline uint64_t ReadLE64(const B* ptr)
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{
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uint64_t x;
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memcpy(&x, ptr, 8);
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return le64toh_internal(x);
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}
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template <ByteType B>
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inline void WriteLE16(B* ptr, uint16_t x)
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{
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uint16_t v = htole16_internal(x);
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memcpy(ptr, &v, 2);
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}
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template <ByteType B>
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inline void WriteLE32(B* ptr, uint32_t x)
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{
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uint32_t v = htole32_internal(x);
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memcpy(ptr, &v, 4);
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}
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template <ByteType B>
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inline void WriteLE64(B* ptr, uint64_t x)
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{
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uint64_t v = htole64_internal(x);
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memcpy(ptr, &v, 8);
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}
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template <ByteType B>
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inline uint16_t ReadBE16(const B* ptr)
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{
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uint16_t x;
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memcpy(&x, ptr, 2);
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return be16toh_internal(x);
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}
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template <ByteType B>
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inline uint32_t ReadBE32(const B* ptr)
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{
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uint32_t x;
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memcpy(&x, ptr, 4);
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return be32toh_internal(x);
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}
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template <ByteType B>
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inline uint64_t ReadBE64(const B* ptr)
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{
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uint64_t x;
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memcpy(&x, ptr, 8);
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return be64toh_internal(x);
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}
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template <ByteType B>
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inline void WriteBE16(B* ptr, uint16_t x)
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{
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uint16_t v = htobe16_internal(x);
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memcpy(ptr, &v, 2);
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}
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template <ByteType B>
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inline void WriteBE32(B* ptr, uint32_t x)
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{
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uint32_t v = htobe32_internal(x);
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memcpy(ptr, &v, 4);
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}
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template <ByteType B>
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inline void WriteBE64(B* ptr, uint64_t x)
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{
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uint64_t v = htobe64_internal(x);
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memcpy(ptr, &v, 8);
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}
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#endif // BITCOIN_CRYPTO_COMMON_H
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