fcloseall(3)

NAME
fcloseall - close all open streams

LIBRARY
Standard C library (libc, -lc)

SYNOPSIS
#define _GNU_SOURCE         /* See feature_test_macros(7) */
#include <stdio.h>

int fcloseall(void);

DESCRIPTION
The fcloseall() function closes all of the calling process's open streams. Buffered output for each stream is written before it is closed (as for fflush(3)); buffered input is discarded.

The standard streams, stdin, stdout, and stderr are also closed.

RETURN VALUE
This function returns 0 if all files were successfully closed; on error, EOF is returned.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value
 | Thread safety | MT-Unsafe race:streams

The fcloseall() function does not lock the streams, so it is not thread-safe.

STANDARDS
This function is a GNU extension.

SEE ALSO
close(2), fclose(3), fflush(3), fopen(3), setbuf(3)