From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Mon, 16 Mar 2020 18:49:26 +0900 Subject: Fresh start --- jni/ruby/missing/memcmp.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 jni/ruby/missing/memcmp.c (limited to 'jni/ruby/missing/memcmp.c') diff --git a/jni/ruby/missing/memcmp.c b/jni/ruby/missing/memcmp.c new file mode 100644 index 0000000..a81eec4 --- /dev/null +++ b/jni/ruby/missing/memcmp.c @@ -0,0 +1,18 @@ +/* public domain rewrite of memcmp(3) */ + +#include "ruby/missing.h" +#include + +int +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; + + for (; len; --len) { + if (tmp = *a++ - *b++) + return tmp; + } + return 0; +} -- cgit v1.2.3