[qmail] / byte_diff.c

#include "byte.h"

int byte_diff(s,n,t)
register char *s;
register unsigned int n;
register char *t;
{
  for (;;) {
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
  }
  return ((int)(unsigned int)(unsigned char) *s)
       - ((int)(unsigned int)(unsigned char) *t);
}
Commit	Line	Data
2117e02e MW	1	#include "byte.h"
	2
	3	int byte_diff(s,n,t)
	4	register char *s;
	5	register unsigned int n;
	6	register char *t;
	7	{
	8	for (;;) {
	9	if (!n) return 0; if (s != t) break; ++s; ++t; --n;
	10	if (!n) return 0; if (s != t) break; ++s; ++t; --n;
	11	if (!n) return 0; if (s != t) break; ++s; ++t; --n;
	12	if (!n) return 0; if (s != t) break; ++s; ++t; --n;
	13	}
	14	return ((int)(unsigned int)(unsigned char) *s)
	15	- ((int)(unsigned int)(unsigned char) *t);
	16	}