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/* Copyright (C) 1991, 1996, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
/* Flush STREAM's buffer.
If STREAM is NULL, flush the buffers of all streams that are writing. */
int
fflush (stream)
register FILE *stream;
{
if (stream == NULL)
{
int lossage = 0;
for (stream = __stdio_head; stream != NULL; stream = stream->__next)
if (__validfp (stream) && stream->__mode.__write)
lossage |= fflush (stream) == EOF;
return lossage ? EOF : 0;
}
if (!__validfp (stream) || !stream->__mode.__write)
{
__set_errno (EINVAL);
return EOF;
}
return __flshfp (stream, EOF);
}
weak_alias(fflush, fflush_unlocked)
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