diff options
Diffstat (limited to 'REORG.TODO/string/strrchr.c')
-rw-r--r-- | REORG.TODO/string/strrchr.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/REORG.TODO/string/strrchr.c b/REORG.TODO/string/strrchr.c new file mode 100644 index 0000000000..92638a8fbd --- /dev/null +++ b/REORG.TODO/string/strrchr.c @@ -0,0 +1,53 @@ +/* Copyright (C) 1991-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <string.h> + +#undef strrchr + +#ifndef STRRCHR +# define STRRCHR strrchr +#endif + +/* Find the last occurrence of C in S. */ +char * +STRRCHR (const char *s, int c) +{ + 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) |