sysdeps/generic/strpbrk.c

   1 /* Copyright (C) 1991, 1994, 1996, 1997 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22
  23 #if defined _LIBC || defined HAVE_CONFIG_H
  24 # include <string.h>
  25 #endif
  26
  27 /* Find the first occurrence in S of any character in ACCEPT.  */
  28 char *
  29 strpbrk (s, accept)
  30      const char *s;
  31      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 }