root/maint/gnulib/lib/strcspn.c

/* */

DEFINITIONS

1. strcspn

   1 /* Copyright (C) 1991, 1994, 1996-1997, 2002-2003, 2005-2006, 2009-2021 Free
   2  * Software 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@gnu.org.
   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 3 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 strcspn
  27 #endif
  28 
  29 /* Return the length of the maximum initial segment of S
  30    which contains no characters from REJECT.  */
  31 size_t
  32 strcspn (const char *s, const char *reject)
     /*  */
  33 {
  34   size_t count = 0;
  35 
  36   while (*s != '\0')
  37     if (strchr (reject, *s++) == NULL)
  38       ++count;
  39     else
  40       return count;
  41 
  42   return count;
  43 }

/* */