sys/src/libc/port/strncmp.c

   1 #include <u.h>
   2 #include <libc.h>
   3
   4 int
   5 strncmp(char *s1, char *s2, long n)
   6 {
   7         unsigned c1, c2;
   8
   9         while(n > 0) {
  10                 c1 = *s1++;
  11                 c2 = *s2++;
  12                 n--;
  13                 if(c1 != c2) {
  14                         if(c1 > c2)
  15                                 return 1;
  16                         return -1;
  17                 }
  18                 if(c1 == 0)
  19                         break;
  20         }
  21         return 0;
  22 }