ref: 5b42385090b777a97827b76840e814f57a859cb8
dir: /lib/c/memcmp.c/
#include <string.h> #undef memcmp int memcmp(const void *s1, const void *s2, size_t n) { const char *s = s1; const char *t = s2; for ( ; n > 0 && *s == *t; --n) ++s, ++t; return (n > 0) ? *(unsigned char *) s - *(unsigned char *) t : 0; }