1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23
24#include <ast.h>
25
26#if _lib_memchr
27
28NoN(memchr)
29
30#else
31
32/*
33 * Return the ptr in sp at which the character c appears;
34 * 0 if not found in n chars; don't stop at \0.
35 */
36
37void*
38memchr(const void* asp, register int c, size_t n)
39{
40	register const char*	sp = (char*)asp;
41	register const char*	ep = sp + n;
42
43	while (sp < ep)
44		if (*sp++ == c)
45			return(--sp);
46	return(0);
47}
48
49#endif
50