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1 | /* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 | 18 | |
28f540f4 | 19 | #include <stdlib.h> |
6dbe2837 | 20 | #include <wchar.h> |
28f540f4 RM |
21 | |
22 | ||
6dbe2837 | 23 | extern mbstate_t __no_r_state; /* Defined in mbtowc.c. */ |
28f540f4 RM |
24 | |
25 | /* Convert the string of multibyte characters in S to `wchar_t's in | |
26 | PWCS, writing no more than N. Return the number written, | |
6dbe2837 RM |
27 | or (size_t) -1 if an invalid multibyte character is encountered. |
28 | ||
29 | Attention: this function should NEVER be intentionally used. | |
30 | The interface is completely stupid. The state is shared between | |
31 | all conversion functions. You should use instead the restartable | |
32 | version `mbsrtowcs'. */ | |
28f540f4 | 33 | size_t |
6dbe2837 | 34 | mbstowcs (wchar_t *pwcs, const char *s, size_t n) |
28f540f4 | 35 | { |
6dbe2837 RM |
36 | mbstate_t save_shift = __no_r_state; |
37 | size_t written; | |
28f540f4 | 38 | |
23396375 | 39 | written = __mbsrtowcs (pwcs, &s, n, &__no_r_state); |
28f540f4 RM |
40 | |
41 | /* Restore the old shift state. */ | |
6dbe2837 | 42 | __no_r_state = save_shift; |
28f540f4 RM |
43 | |
44 | /* Return how many we wrote (or maybe an error). */ | |
45 | return written; | |
46 | } |