git / moonbite-core / src/compat/byteswap.h · raw

// Copyright (c) 2014-2019 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_COMPAT_BYTESWAP_H#define BITCOIN_COMPAT_BYTESWAP_H#if defined(HAVE_CONFIG_H)#include <config/bitcoin-config.h>#endif#include <stdint.h>#if defined(HAVE_BYTESWAP_H)#include <byteswap.h>#endif#if defined(MAC_OSX)#include <libkern/OSByteOrder.h>#define bswap_16(x) OSSwapInt16(x)#define bswap_32(x) OSSwapInt32(x)#define bswap_64(x) OSSwapInt64(x)#else// Non-MacOS / non-Darwin#if HAVE_DECL_BSWAP_16 == 0inline uint16_t bswap_16(uint16_t x){    return (x >> 8) | (x << 8);}#endif // HAVE_DECL_BSWAP16 == 0#if HAVE_DECL_BSWAP_32 == 0inline uint32_t bswap_32(uint32_t x){    return (((x & 0xff000000U) >> 24) | ((x & 0x00ff0000U) >>  8) |            ((x & 0x0000ff00U) <<  8) | ((x & 0x000000ffU) << 24));}#endif // HAVE_DECL_BSWAP32 == 0#if HAVE_DECL_BSWAP_64 == 0inline uint64_t bswap_64(uint64_t x){     return (((x & 0xff00000000000000ull) >> 56)          | ((x & 0x00ff000000000000ull) >> 40)          | ((x & 0x0000ff0000000000ull) >> 24)          | ((x & 0x000000ff00000000ull) >> 8)          | ((x & 0x00000000ff000000ull) << 8)          | ((x & 0x0000000000ff0000ull) << 24)          | ((x & 0x000000000000ff00ull) << 40)          | ((x & 0x00000000000000ffull) << 56));}#endif // HAVE_DECL_BSWAP64 == 0#endif // defined(MAC_OSX)#endif // BITCOIN_COMPAT_BYTESWAP_H