mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 02:50:09 +00:00
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* Copyright (C) 1991 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <ansidecl.h>
|
|
#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
|
|
DEFUN(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)
|
|
{
|
|
errno = EINVAL;
|
|
return EOF;
|
|
}
|
|
|
|
return __flshfp(stream, EOF);
|
|
}
|