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Linux 2.6 - man page for fcloseall (linux section 3)

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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 out-
       put 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
   Multithreading (see pthreads(7))
       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 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at
       http://www.kernel.org/doc/man-pages/.

GNU					    2013-06-21				     FCLOSEALL(3)
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