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author | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 15:06:39 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 15:06:39 +0000 |
commit | 9d13fb2413921c713f83efe331e8e4d219c62c6b (patch) | |
tree | 2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /string/strrchr.c | |
parent | b6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff) | |
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Moved to csu/errno-loc.c.
Diffstat (limited to 'string/strrchr.c')
-rw-r--r-- | string/strrchr.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/string/strrchr.c b/string/strrchr.c new file mode 100644 index 0000000000..64118b87ef --- /dev/null +++ b/string/strrchr.c @@ -0,0 +1,50 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <string.h> + +#undef strrchr + +/* Find the last occurrence of C in S. */ +char * +strrchr (const char *s, int c) +{ + register const char *found, *p; + + c = (unsigned char) c; + + /* Since strchr is fast, we use it rather than the obvious loop. */ + + if (c == '\0') + return strchr (s, '\0'); + + found = NULL; + while ((p = strchr (s, c)) != NULL) + { + found = p; + s = p + 1; + } + + return (char *) found; +} + +#ifdef weak_alias +#undef rindex +weak_alias (strrchr, rindex) +#endif +libc_hidden_builtin_def (strrchr) |