fclose

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



NAME
       fclose - close a stream

SYNOPSIS
       #include <stdio.h>

       int fclose(FILE *stream);

DESCRIPTION
       The  fclose  function dissociates the named stream from its underlying
       file or set of functions.  If the stream was being  used	 for  output,
       any buffered data is written first, using fflush(3).

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 behaviour.

ERRORS
       EBADF  The filedescriptor underlying stream 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).

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 ker-
       nel buffers must be flushed too, e.g. with sync(2) or fsync(2).

CONFORMING TO
       The fclose function conforms to ANSI X3.159-1989 (‘‘ANSI C’’).

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



BSD MANPAGE			  1993-11-29			    FCLOSE(3)