Name

fclose — close a stream

Synopsis

#include <stdio.h>
int fclose( FILE *  fp);

DESCRIPTION

The fclose() function will flush the stream pointed to by fp (writing any buffered output data using fflush(3)) and close the underlying file descriptor.

RETURN VALUE

Upon successful completion 0 is returned. Otherwise, EOF is returned and the global variable errno is set to indicate the error. In either case any further access (including another call to fclose()) to the stream results in undefined behavior.

ERRORS

EBADF

The file descriptor underlying fp is not valid.

The fclose() function may also fail and set errno for any of the errors specified for the routines close(2), write(2) or fflush(3).

CONFORMING TO

C89, C99.

NOTES

Note that fclose() only flushes the user space buffers provided by the C library. To ensure that the data is physically stored on disk the kernel buffers must be flushed too, for example, with sync(2) or fsync(2).

SEE ALSO

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

COLOPHON

This page is part of release 2.79 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/.


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This code is derived from software contributed to Berkeley by
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    (#)fclose.3 6.7 (Berkeley) 6/29/91

Converted for Linux, Mon Nov 29 15:19:14 1993, faithcs.unc.edu

Modified 2000-07-22 by Nicolás Lichtmaier <nickdebian.org>