fcloseall(3) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | SEE ALSO | COLOPHON

fcloseall(3)            Library Functions Manual            fcloseall(3)

NAME         top

       fcloseall - close all open streams

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

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

       int fcloseall(void);

DESCRIPTION         top

       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         top

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

ATTRIBUTES         top

       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.

STANDARDS         top

       GNU.

SEE ALSO         top

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

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       [email protected]

Linux man-pages 6.9.1          2024-05-02                   fcloseall(3)

Pages that refer to this page: fclose(3)