| /* Copyright (C) 1995-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <wchar.h> |
| |
| #ifdef WCSSPN |
| # define wcsspn WCSSPN |
| #endif |
| |
| /* Return the length of the maximum initial segment |
| of WCS which contains only wide-characters in ACCEPT. */ |
| size_t |
| wcsspn (const wchar_t *wcs, const wchar_t *accept) |
| { |
| const wchar_t *p; |
| const wchar_t *a; |
| size_t count = 0; |
| |
| for (p = wcs; *p != L'\0'; ++p) |
| { |
| for (a = accept; *a != L'\0'; ++a) |
| if (*p == *a) |
| break; |
| if (*a == L'\0') |
| return count; |
| else |
| ++count; |
| } |
| |
| return count; |
| } |
| libc_hidden_def (wcsspn) |