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299a95b9 | 1 | /* Copyright (C) 1995, 1996 Free Software Foundation, Inc. |
a482b5a5 | 2 | This file is part of the GNU C Library. |
299a95b9 | 3 | Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu> |
a482b5a5 RM |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
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 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
18 | Cambridge, MA 02139, USA. */ | |
19 | ||
299a95b9 | 20 | #include <wchar.h> |
a482b5a5 RM |
21 | |
22 | ||
23 | /* Return the length of the maximum initial segment | |
24 | of WCS which contains only wide-characters not in REJECT. */ | |
25 | size_t | |
26 | wcscspn (wcs, reject) | |
299a95b9 RM |
27 | const wchar_t *wcs; |
28 | const wchar_t *reject; | |
a482b5a5 RM |
29 | { |
30 | register size_t count = 0; | |
31 | ||
32 | while (*wcs != L'\0') | |
33 | if (wcschr (reject, *wcs++) == NULL) | |
34 | ++count; | |
35 | else | |
36 | return count; | |
37 | ||
38 | return count; | |
39 | } |