sys/src/libc/port/strcmp.c

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