1 /******************************************************************************
2 * Copyright (c) 2004, 2008 IBM Corporation
3 * All rights reserved.
4 * This program and the accompanying materials
5 * are made available under the terms of the BSD License
6 * which accompanies this distribution, and is available at
7 * http://www.opensource.org/licenses/bsd-license.php
8 *
9 * Contributors:
10 * IBM Corporation - initial implementation
11 *****************************************************************************/
12
13 #include "string.h"
14
15
16 int
memcmp(const void * ptr1,const void * ptr2,size_t n)17 memcmp(const void *ptr1, const void *ptr2, size_t n)
18 {
19 const unsigned char *p1 = ptr1;
20 const unsigned char *p2 = ptr2;
21
22 while (n-- > 0) {
23 if (*p1 != *p2)
24 return (*p1 - *p2);
25 p1 += 1;
26 p2 += 1;
27 }
28
29 return 0;
30 }
31