.- .
颠倒整数中的字节顺序。
语法
unsigned short _byteswap_ushort ( unsigned short val );
unsigned long _byteswap_ulong ( unsigned long val );
unsigned __int64 _byteswap_uint64 ( unsigned __int64 val );
参数
val
要颠倒字节顺序的整数。
要求
| 例程 | 必需的标头 |
|---|---|
_byteswap_ushort |
<stdlib.h> |
_byteswap_ulong |
<stdlib.h> |
_byteswap_uint64 |
<stdlib.h> |
有关兼容性的详细信息，请参阅 兼容性。
示例
// crt_byteswap.c
#include <stdlib.h>
int main()
{
unsigned __int64 u64 = 0x0102030405060708;
unsigned long ul = 0x01020304;
printf("byteswap of %I64x = %I64x\n", u64, _byteswap_uint64(u64));
printf("byteswap of %Ix = %Ix", ul, _byteswap_ulong(ul));
}
byteswap of 0102030405060708 = 0807060504030201
byteswap of 01020304 = 04030201