warnings: fix compilation with old autoconf
[gnulib/ericb.git] / lib / wcslen-impl.h
blob0645d042419fde1ea70bc8c170576ff8d0270ecc
1 /* Determine the length of a wide string.
2 Copyright (C) 1999, 2011-2017 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 1999.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 size_t
19 wcslen (const wchar_t *s)
21 const wchar_t *ptr;
23 for (ptr = s; *ptr != (wchar_t)'\0'; ptr++)
25 return ptr - s;