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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-07-02 15:36:20 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-07-02 15:36:20 +1000
commit1d880992fd8c8457a2d990ac6622cfd58fb1b261 (patch)
treec4c843b12e96b5612c315db5a23c5da1a900618c /libc/string/memcmp.c
downloadblackbird-skiboot-1d880992fd8c8457a2d990ac6622cfd58fb1b261.tar.gz
blackbird-skiboot-1d880992fd8c8457a2d990ac6622cfd58fb1b261.zip
Initial commit of Open Source release
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'libc/string/memcmp.c')
-rw-r--r--libc/string/memcmp.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/libc/string/memcmp.c b/libc/string/memcmp.c
new file mode 100644
index 00000000..3b69cefb
--- /dev/null
+++ b/libc/string/memcmp.c
@@ -0,0 +1,30 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include "string.h"
+
+
+int
+memcmp(const void *ptr1, const void *ptr2, size_t n)
+{
+ const unsigned char *p1 = ptr1;
+ const unsigned char *p2 = ptr2;
+
+ while (n-- > 0) {
+ if (*p1 != *p2)
+ return (*p1 - *p2);
+ p1 += 1;
+ p2 += 1;
+ }
+
+ return 0;
+}
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