string/strtok.c

   1 /* Copyright (C) 1991-2019 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
  21 /* Parse S into tokens separated by characters in DELIM.
  22    If S is NULL, the last string strtok() was called with is
  23    used.  For example:
  24         char s[] = "-abc-=-def";
  25         x = strtok(s, "-");             // x = "abc"
  26         x = strtok(NULL, "-=");         // x = "def"
  27         x = strtok(NULL, "=");          // x = NULL
  28                 // s = "abc\0=-def\0"
  29 */
  30 char *
  31 strtok (char *s, const char *delim)
  32 {
  33   static char *olds;
  34   return __strtok_r (s, delim, &olds);
  35 }