1 /* Public domain. */
2
3 #include "byte.h"
4
byte_diff(s,n,t)5 int byte_diff(s,n,t)
6 register char *s;
7 register unsigned int n;
8 register char *t;
9 {
10 for (;;) {
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 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
14 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
15 }
16 return ((int)(unsigned int)(unsigned char) *s)
17 - ((int)(unsigned int)(unsigned char) *t);
18 }
19