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85dd1003 | 1 | /* Copyright (C) 1991, 1995, 1996, 1997, 2003 Free Software Foundation, Inc. |
6d52618b | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
6d52618b | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 8 | |
6d52618b UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 AJ |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <string.h> |
20 | ||
9a0a462c UD |
21 | #undef strrchr |
22 | ||
6d52618b | 23 | /* Find the last occurrence of C in S. */ |
28f540f4 | 24 | char * |
f8adc70c | 25 | strrchr (const char *s, int c) |
28f540f4 | 26 | { |
f8adc70c | 27 | register const char *found, *p; |
28f540f4 RM |
28 | |
29 | c = (unsigned char) c; | |
30 | ||
31 | /* Since strchr is fast, we use it rather than the obvious loop. */ | |
f8adc70c | 32 | |
28f540f4 | 33 | if (c == '\0') |
f8adc70c | 34 | return strchr (s, '\0'); |
28f540f4 RM |
35 | |
36 | found = NULL; | |
f8adc70c | 37 | while ((p = strchr (s, c)) != NULL) |
28f540f4 RM |
38 | { |
39 | found = p; | |
40 | s = p + 1; | |
41 | } | |
42 | ||
43 | return (char *) found; | |
44 | } | |
45 | ||
46 | #ifdef weak_alias | |
47 | #undef rindex | |
48 | weak_alias (strrchr, rindex) | |
49 | #endif | |
85dd1003 | 50 | libc_hidden_builtin_def (strrchr) |