ref: a9e7bd9ed9a7e4166348af13878ab0f953d77bb5
dir: /lib/c/strncmp.c/
#include <string.h>
#undef strncmp
int
strncmp(const char *s1, const char *s2, size_t n)
{
int c;
if (n == 0)
return 0;
while ((c = *s1) != '\0' && c == *s2) {
if (--n == 0)
return 0;
++s1, ++s2;
}
return (*(unsigned char *) s1 - *(unsigned char *) s2);
}