1  /* Copyright (C) 1991, 1994, 2000, 2002-2003, 2006, 2009-2023 Free Software
       2     Foundation, Inc.
       3  
       4     NOTE: The canonical source of this file is maintained with the GNU C Library.
       5     Bugs can be reported to bug-glibc@prep.ai.mit.edu.
       6  
       7     This file is free software: you can redistribute it and/or modify
       8     it under the terms of the GNU Lesser General Public License as
       9     published by the Free Software Foundation; either version 2.1 of the
      10     License, or (at your option) any later version.
      11  
      12     This file is distributed in the hope that it will be useful,
      13     but WITHOUT ANY WARRANTY; without even the implied warranty of
      14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15     GNU Lesser General Public License for more details.
      16  
      17     You should have received a copy of the GNU Lesser General Public License
      18     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      19  
      20  #include <config.h>
      21  
      22  #include <stddef.h>
      23  #include <string.h>
      24  
      25  #if _LIBC
      26  # undef strpbrk
      27  #endif
      28  
      29  /* Find the first occurrence in S of any character in ACCEPT.  */
      30  char *
      31  strpbrk (const char *s, const char *accept)
      32  {
      33    while (*s != '\0')
      34      {
      35        const char *a = accept;
      36        while (*a != '\0')
      37          if (*a++ == *s)
      38            return (char *) s;
      39        ++s;
      40      }
      41  
      42    return NULL;
      43  }