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).

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)