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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  will  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 3.22 of the Linux man-pages project.  A description of the project,  and  informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



GNU                               2009-02-23                         FCLOSE(3)