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[thirdparty/man-pages.git] / man3 / fcloseall.3

.\" Copyright (c) 2006 by Michael Kerrisk <mtk.manpages@gmail.com>
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.TH FCLOSEALL 3  2006-12-27 "GNU" "Linux Programmer's Manual"
.SH NAME
fcloseall \- close all open streams
.SH SYNOPSIS
.nf
.BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
.B #include <stdio.h>
.sp
.B int fcloseall(void);
.fi
.SH DESCRIPTION
The
.BR fcloseall ()
function closes all of the calling process's open streams.
Buffered output for each stream is written before it is closed
(as for
.BR fflush (3));
buffered input is discarded.

The standard streams,
.IR stdin ,
.IR stdout ,
and
.I stderr
are also closed.
.SH "RETURN VALUE"
This function returns 0 if all files were successfully closed;
on error,
.B EOF
is returned.
.SH "CONFORMING TO"
This function is a GNU extension.
.SH "SEE ALSO"
.BR close (2),
.BR fclose (3),
.BR fflush (3),
.BR fopen (3),
.BR setbuf (3),
.BR feature_test_macros (7)