ref: 02e4f0a7bed09cd0f60d8a0b101cf0a82baf588c dir: /lib/c/strcmp.c/
#include <string.h> #undef strcmp int strcmp(const char *s1, const char *s2) { while (*s1 && *s2 && *s1 == *s2) ++s1, ++s2; return *(unsigned char *)s1 - *(unsigned char *)s2; }