1#pragma once 2 3#include <features.h> 4#include <stdint.h> 5 6static __inline uint16_t __bswap_16(uint16_t __x) { 7 return __x << 8 | __x >> 8; 8} 9 10static __inline uint32_t __bswap_32(uint32_t __x) { 11 return __x >> 24 | ((__x >> 8) & 0xff00) | ((__x << 8) & 0xff0000) | 12 __x << 24; 13} 14 15static __inline uint64_t __bswap_64(uint64_t __x) { 16 return ((uint64_t)__bswap_32(__x)) << 32 | __bswap_32(__x >> 32); 17} 18 19#define bswap_16(x) __bswap_16(x) 20#define bswap_32(x) __bswap_32(x) 21#define bswap_64(x) __bswap_64(x) 22