--- /dev/null
+++ Libc/Libc-825.25/string/memset_pattern.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2011 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+#include <stdio.h>
+
+void
+bcopy(const void *src0, void *dst0, size_t length);
+
+void
+memset_pattern4(void *b, const void *pattern4, size_t len)
+{
+	char * start = (char *)b;
+	char * p = (char *)b;
+	while ((start + len) - p >= 4) {
+		bcopy(pattern4, p, 4);
+		p += 4;
+	}
+	if ((start + len) - p != 0) {
+		bcopy(pattern4, p, (start + len) - p);
+	}
+}
+
+void
+memset_pattern8(void *b, const void *pattern8, size_t len)
+{
+	char * start = (char *)b;
+	char * p = (char *)b;
+	while ((start + len) - p >= 8) {
+		bcopy(pattern8, p, 8);
+		p += 8;
+	}
+	if ((start + len) - p != 0) {
+		bcopy(pattern8, p, (start + len) - p);
+	}
+
+}
+
+void
+memset_pattern16(void *b, const void *pattern16, size_t len)
+{
+	char * start = (char *)b;
+	char * p = (char *)b;
+	while ((start + len) - p >= 16) {
+		bcopy(pattern16, p, 16);
+		p += 16;
+	}
+	if ((start + len) - p != 0) {
+		bcopy(pattern16, p, (start + len) - p);
+	}
+}