add tag v1_8_5_91v1_8_5_91

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_91@13046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 18 insertions, 0 deletions

diff --git a/ruby_1_8_5/missing/memcmp.c b/ruby_1_8_5/missing/memcmp.c
new file mode 100644
index 0000000000..9edc9c13b9
--- /dev/null
+++ b/ruby_1_8_5/missing/memcmp.c
@@ -0,0 +1,18 @@
+/* public domain rewrite of memcmp(3) */
+
+int
+memcmp(s1,s2,len)
+    char *s1;
+    char *s2;
+    register int len;
+{
+    register unsigned char *a = (unsigned char*)s1;
+    register unsigned char *b = (unsigned char*)s2;
+    register int tmp;
+
+    while (len--) {
+	if (tmp = *a++ - *b++)
+	    return tmp;
+    }
+    return 0;
+}