summaryrefslogtreecommitdiff
path: root/usr/src/lib/libast/common/comp/strchr.c
blob: c0188a13ca0d5b14c0812b35717025af2d24aed0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1985-2009 AT&T Intellectual Property          *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                    by AT&T Intellectual Property                     *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped

#include <ast.h>

#if _lib_strchr

NoN(strchr)

#else

#undef	strchr

#if _lib_index

#undef	index

extern char*	index(const char*, int);

char*
strchr(const char* s, int c)
{
	return(index(s, c));
}

#else

char*
strchr(register const char* s, register int c)
{
	do if (*s == c) return((char*)s); while(*s++);
	return(0);
}

#endif

#endif