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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/v1_1r@105 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 0 deletions

diff --git a/missing/memcmp.c b/missing/memcmp.c
new file mode 100644
index 0000000000..762eaf5260
--- /dev/null
+++ b/missing/memcmp.c
@@ -0,0 +1,21 @@
+/*
+ * memcmp --- compare memories.
+ *
+ */
+
+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;
+}