common.h

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// Copyright (c) 2014-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_CRYPTO_COMMON_H
#define BITCOIN_CRYPTO_COMMON_H
 
#include <compat/endian.h>
 
#include <cstdint>
#include <cstring>
 
uint16_t static inline ReadLE16(const unsigned char* ptr)
{
    uint16_t x;
    memcpy(&x, ptr, 2);
    return le16toh_internal(x);
}
 
uint32_t static inline ReadLE32(const unsigned char* ptr)
{
    uint32_t x;
    memcpy(&x, ptr, 4);
    return le32toh_internal(x);
}
 
uint64_t static inline ReadLE64(const unsigned char* ptr)
{
    uint64_t x;
    memcpy(&x, ptr, 8);
    return le64toh_internal(x);
}
 
void static inline WriteLE16(unsigned char* ptr, uint16_t x)
{
    uint16_t v = htole16_internal(x);
    memcpy(ptr, &v, 2);
}
 
void static inline WriteLE32(unsigned char* ptr, uint32_t x)
{
    uint32_t v = htole32_internal(x);
    memcpy(ptr, &v, 4);
}
 
void static inline WriteLE64(unsigned char* ptr, uint64_t x)
{
    uint64_t v = htole64_internal(x);
    memcpy(ptr, &v, 8);
}
 
uint16_t static inline ReadBE16(const unsigned char* ptr)
{
    uint16_t x;
    memcpy(&x, ptr, 2);
    return be16toh_internal(x);
}
 
uint32_t static inline ReadBE32(const unsigned char* ptr)
{
    uint32_t x;
    memcpy(&x, ptr, 4);
    return be32toh_internal(x);
}
 
uint64_t static inline ReadBE64(const unsigned char* ptr)
{
    uint64_t x;
    memcpy(&x, ptr, 8);
    return be64toh_internal(x);
}
 
void static inline WriteBE16(unsigned char* ptr, uint16_t x)
{
    uint16_t v = htobe16_internal(x);
    memcpy(ptr, &v, 2);
}
 
void static inline WriteBE32(unsigned char* ptr, uint32_t x)
{
    uint32_t v = htobe32_internal(x);
    memcpy(ptr, &v, 4);
}
 
void static inline WriteBE64(unsigned char* ptr, uint64_t x)
{
    uint64_t v = htobe64_internal(x);
    memcpy(ptr, &v, 8);
}
 
#endif // BITCOIN_CRYPTO_COMMON_H