diff options
Diffstat (limited to 'missing/memcmp.c')
| -rw-r--r-- | missing/memcmp.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/missing/memcmp.c b/missing/memcmp.c index 5b3afd7ccc..9657e6c372 100644 --- a/missing/memcmp.c +++ b/missing/memcmp.c @@ -1,19 +1,18 @@ /* public domain rewrite of memcmp(3) */ -#include "missing.h" +#include "ruby/missing.h" +#include <stddef.h> int -memcmp(s1,s2,len) - char *s1; - char *s2; - register int len; +memcmp(const void *s1, const void *s2, size_t len) { register unsigned char *a = (unsigned char*)s1; register unsigned char *b = (unsigned char*)s2; register int tmp; - while (len--) { - if (tmp = *a++ - *b++) + for (; len; --len) { + tmp = *a++ - *b++; + if (tmp) return tmp; } return 0; |