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43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio_ext.h>
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#include "libioP.h"
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void
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__fpurge (FILE *fp)
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{
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if (fp->_mode > 0)
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{
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/* Wide-char stream. */
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if (_IO_in_backup (fp))
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_IO_free_wbackup_area (fp);
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fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_ptr;
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fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_base;
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}
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else
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{
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/* Byte stream. */
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if (_IO_in_backup (fp))
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_IO_free_backup_area (fp);
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fp->_IO_read_end = fp->_IO_read_ptr;
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fp->_IO_write_ptr = fp->_IO_write_base;
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}
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}
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