FCLOSEALL(3)						     Linux Programmer's Manual						      FCLOSEALL(3)

NAME

       fcloseall - close all open streams

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		     |
       +------------+---------------+------------------------+
       |fcloseall() | Thread safety | MT-Unsafe race:streams |
       +------------+---------------+------------------------+
       The fcloseall() function does not lock the streams, so it is not thread-safe.

CONFORMING TO

       This function is a GNU extension.

SEE ALSO

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

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-09-15							      FCLOSEALL(3)