Support compilers defaulting to PIE
[glibc.git] / wcsmbs / wcsnlen.c
blob2bee7057e3e978a6ac34af3067de7a1451a12c43
1 /* Copyright (C) 1998-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <wchar.h>
22 /* Copy SRC to DEST. */
23 size_t
24 __wcsnlen (s, maxlen)
25 const wchar_t *s;
26 size_t maxlen;
28 size_t len = 0;
30 while (maxlen > 0 && s[len] != L'\0')
32 ++len;
33 if (--maxlen == 0 || s[len] == L'\0')
34 return len;
35 ++len;
36 if (--maxlen == 0 || s[len] == L'\0')
37 return len;
38 ++len;
39 if (--maxlen == 0 || s[len] == L'\0')
40 return len;
41 ++len;
42 --maxlen;
45 return len;
47 weak_alias (__wcsnlen, wcsnlen)