com32/lib/strncmp.c

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