1 /* Copyright (C) 1991, 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18 #include <string.h>
19
20
21 /* Find the last occurrence of C in S. */
strrchr(const char * s,int c)22 char *strrchr (const char *s, int c)
23 {
24 register const char *found, *p;
25
26 c = (unsigned char) c;
27
28 /* Since strchr is fast, we use it rather than the obvious loop. */
29
30 if (c == '\0')
31 return strchr (s, '\0');
32
33 found = NULL;
34 while ((p = strchr (s, c)) != NULL)
35 {
36 found = p;
37 s = p + 1;
38 }
39
40 return (char *) found;
41 }
42 libc_hidden_weak(strrchr)
43 #ifdef __UCLIBC_SUSV3_LEGACY__
44 weak_alias(strrchr,rindex)
45 #endif
46