1139823Simp/* Copyright (C) 1991, 1994, 1996-1997, 2002-2003, 2005-2006 Free Software Foundation, Inc.
2122702Sandre
3122702Sandre   NOTE: The canonical source of this file is maintained with the GNU C Library.
4122702Sandre   Bugs can be reported to bug-glibc@gnu.org.
5122702Sandre
6122702Sandre   This program is free software; you can redistribute it and/or modify it
7122702Sandre   under the terms of the GNU General Public License as published by the
8122702Sandre   Free Software Foundation; either version 2, or (at your option) any
9122702Sandre   later version.
10122702Sandre
11122702Sandre   This program is distributed in the hope that it will be useful,
12122702Sandre   but WITHOUT ANY WARRANTY; without even the implied warranty of
13122702Sandre   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14122702Sandre   GNU General Public License for more details.
15122702Sandre
16122702Sandre   You should have received a copy of the GNU General Public License
17122702Sandre   along with this program; if not, write to the Free Software Foundation,
18122702Sandre   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
19122702Sandre
20122702Sandre#include <config.h>
21122702Sandre
22122702Sandre#include <stddef.h>
23122702Sandre#include <string.h>
24122702Sandre
25122702Sandre#undef strcspn
26122702Sandre
27122702Sandre/* Return the length of the maximum initial segment of S
28122702Sandre   which contains no characters from REJECT.  */
29122702Sandresize_t
30122702Sandrestrcspn (const char *s, const char *reject)
31122702Sandre{
32122702Sandre  size_t count = 0;
33122702Sandre
34122702Sandre  while (*s != '\0')
35122702Sandre    if (strchr (reject, *s++) == NULL)
36122702Sandre      ++count;
37148324Skeramida    else
38122702Sandre      return count;
39122759Sandre
40122759Sandre  return count;
41122759Sandre}
42122759Sandre