i386: Use __glibc_likely/__glibc_likely in dl-machine.h
[glibc.git] / wcsmbs / wcsspn.c
blobe6caafcc2bebed8c12f08f14903b843910951a9a
1 /* Copyright (C) 1995-2018 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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>
21 #ifdef WCSSPN
22 # define wcsspn WCSSPN
23 #endif
25 /* Return the length of the maximum initial segment
26 of WCS which contains only wide-characters in ACCEPT. */
27 size_t
28 wcsspn (const wchar_t *wcs, const wchar_t *accept)
30 const wchar_t *p;
31 const wchar_t *a;
32 size_t count = 0;
34 for (p = wcs; *p != L'\0'; ++p)
36 for (a = accept; *a != L'\0'; ++a)
37 if (*p == *a)
38 break;
39 if (*a == L'\0')
40 return count;
41 else
42 ++count;
45 return count;
47 libc_hidden_def (wcsspn)