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 void *
memchr(const void * ptr,int c,size_t n)17 memchr(const void *ptr, int c, size_t n)
18 {
19 unsigned char ch = (unsigned char)c;
20 const unsigned char *p = ptr;
21
22 while (n-- > 0) {
23 if (*p == ch)
24 return (void *)p;
25 p += 1;
26 }
27
28 return NULL;
29 }
30