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d18ea0c5 | 1 | /* Copyright (C) 1993-2012 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
d64b6ad0 | 3 | |
41bdb6e2 AJ |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
d64b6ad0 | 8 | |
41bdb6e2 AJ |
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 | |
d64b6ad0 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 12 | Lesser General Public License for more details. |
d64b6ad0 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. | |
d64b6ad0 | 17 | |
41bdb6e2 AJ |
18 | As a special exception, if you link the code in this file with |
19 | files compiled with a GNU compiler to produce an executable, | |
20 | that does not cause the resulting executable to be covered by | |
21 | the GNU Lesser General Public License. This exception does not | |
22 | however invalidate any other reasons why the executable file | |
23 | might be covered by the GNU Lesser General Public License. | |
24 | This exception applies to code released by its copyright holders | |
25 | in files containing the exception. */ | |
d64b6ad0 UD |
26 | |
27 | #include "libioP.h" | |
28 | #include <wchar.h> | |
29 | ||
30 | wint_t | |
31 | ungetwc (c, fp) | |
32 | wint_t c; | |
33 | _IO_FILE *fp; | |
34 | { | |
3a12d525 | 35 | wint_t result; |
d64b6ad0 | 36 | CHECK_FILE (fp, WEOF); |
0261d33f | 37 | _IO_acquire_lock (fp); |
8f739934 UD |
38 | _IO_fwide (fp, 1); |
39 | if (c == WEOF) | |
40 | result = WEOF; | |
41 | else | |
d18ea0c5 | 42 | result = _IO_sputbackwc (fp, c); |
0261d33f | 43 | _IO_release_lock (fp); |
d64b6ad0 UD |
44 | return result; |
45 | } |