add functions.

remove functions.
optimize (:
emulate b{copy,cmp,zero} through the mem{cpy,cmp,set}.
add useful macros to stand.h

1 files changed, 47 insertions, 0 deletions

diff --git a/sys/lib/libsa/memcmp.c b/sys/lib/libsa/memcmp.c
new file mode 100644
index 00000000000..babeac9c91f
--- /dev/null
+++ b/sys/lib/libsa/memcmp.c
@@ -0,0 +1,47 @@
+/*	$OpenBSD: memcmp.c,v 1.1 1996/10/16 11:32:06 mickey Exp $	*/
+
+/*-
+ * Copyright (c) 1996 Michael Shalayeff
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/types.h>
+#include "stand.h"
+
+int
+memcmp(s1, s2, n)
+	const void *s1;
+	const void *s2;
+	size_t	n;
+{
+	while(n-- && *(char*)s1 == *(char*)s2)
+		((char*)s1)++, ((char*)s2)++;
+	return *(char*)s1 - *(char*)s2;
+}