fclose

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



NAME
       fclose - close a stream

SYNOPSIS
       #include <stdio.h>

       int fclose(FILE *fp);

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

RETURN VALUE
       Upon successful completion 0 is returned.  Otherwise, EOF is returned and
       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 3.53 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                                2009-02-23                          FCLOSE(3)