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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 er-
       ror, EOF is returned.

ATTRIBUTES
       For an  explanation  of  the  terms  used  in  this  section,  see  at-
       tributes(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 5.05 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)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON