[qmail] / str_diff.c

#include "str.h"

int str_diff(s,t)
register char *s;
register char *t;
{
  register char x;

  for (;;) {
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
  }
  return ((int)(unsigned int)(unsigned char) x)
       - ((int)(unsigned int)(unsigned char) *t);
}
Commit	Line	Data
2117e02e MW	1	#include "str.h"
	2
	3	int str_diff(s,t)
	4	register char *s;
	5	register char *t;
	6	{
	7	register char x;
	8
	9	for (;;) {
	10	x = s; if (x != t) break; if (!x) break; ++s; ++t;
	11	x = s; if (x != t) break; if (!x) break; ++s; ++t;
	12	x = s; if (x != t) break; if (!x) break; ++s; ++t;
	13	x = s; if (x != t) break; if (!x) break; ++s; ++t;
	14	}
	15	return ((int)(unsigned int)(unsigned char) x)
	16	- ((int)(unsigned int)(unsigned char) *t);
	17	}