string/strrchr.c

   1 /* Copyright (C) 1991-2023 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <string.h>
  19
  20 #undef strrchr
  21
  22 #ifndef STRRCHR
  23 # define STRRCHR strrchr
  24 #endif
  25
  26 /* Find the last occurrence of C in S.  */
  27 char *
  28 STRRCHR (const char *s, int c)
  29 {
  30   return __memrchr (s, c, strlen (s) + 1);
  31 }
  32
  33 #ifdef weak_alias
  34 #undef rindex
  35 weak_alias (strrchr, rindex)
  36 #endif
  37 libc_hidden_builtin_def (strrchr)