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2b778ceb | 1 | /* Copyright (C) 2000-2021 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
a91d3cd3 | 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. | |
a91d3cd3 | 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 | |
a91d3cd3 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 AJ |
12 | Lesser General Public License for more details. |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
a91d3cd3 UD |
17 | |
18 | #include <stdio_ext.h> | |
aebb1faa | 19 | #include "libioP.h" |
a91d3cd3 UD |
20 | |
21 | void | |
22 | __fpurge (FILE *fp) | |
23 | { | |
24 | if (fp->_mode > 0) | |
25 | { | |
26 | /* Wide-char stream. */ | |
aebb1faa | 27 | if (_IO_in_backup (fp)) |
d18ea0c5 | 28 | _IO_free_wbackup_area (fp); |
a91d3cd3 UD |
29 | |
30 | fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_ptr; | |
31 | fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_base; | |
32 | } | |
33 | else | |
34 | { | |
35 | /* Byte stream. */ | |
36 | if (_IO_in_backup (fp)) | |
d18ea0c5 | 37 | _IO_free_backup_area (fp); |
a91d3cd3 UD |
38 | |
39 | fp->_IO_read_end = fp->_IO_read_ptr; | |
40 | fp->_IO_write_ptr = fp->_IO_write_base; | |
41 | } | |
42 | } |