reactos/sdk/lib/cryptlib/util.c

27 lines
534 B
C

#if !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
#include <stdlib.h>
#include <intrin.h>
void
byteReverse(unsigned char *buf, unsigned longs)
{
unsigned int t;
do
{
#if 0
t = (unsigned int)((unsigned)buf[3] << 8 | buf[2]) << 16 |
((unsigned)buf[1] << 8 | buf[0]);
#else
t = _byteswap_ulong(*(unsigned int *)buf);
#endif
*(unsigned int *)buf = t;
buf += 4;
} while (--longs);
}
#endif // !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)