fclose(3C)						   Standard C Library Functions 						fclose(3C)

NAME

       fclose - close a stream

SYNOPSIS

       #include <stdio.h>

       int fclose(FILE *stream);

DESCRIPTION

       The  fclose()  function	causes	the stream pointed to by stream to be flushed and the associated file to be closed. Any unwritten buffered
       data for the stream is written to the file; any unread buffered data is discarded. The stream is disassociated from the file. If the  asso-
       ciated buffer was automatically allocated, it is deallocated.

       The  fclose()  function	marks for update the st_ctime and st_mtime fields of the underlying file if the stream is writable and if buffered
       data has not yet been written to the file.  It will perform a close(2) operation on the file descriptor that is associated with the  stream
       pointed to by stream.

       After the call to fclose(), any use of stream causes undefined behavior.

       The fclose() function is performed automatically for all open files upon calling exit(2).

RETURN VALUES

       Upon successful completion, fclose() returns 0. Otherwise, it returns EOF and sets errno to indicate the error.

ERRORS

       The fclose() function will fail if:

       EAGAIN	       The  O_NONBLOCK	flag is set for the file descriptor underlying stream and the process would be delayed in the write opera-
		       tion.

       EBADF	       The file descriptor underlying stream is not valid.

       EFBIG	       An attempt was made to write a file that exceeds the maximum file size or the process's file size limit; or the file  is  a
		       regular file and an attempt was made to write at or beyond the offset maximum associated with the corresponding stream.

       EINTR	       The fclose() function was interrupted by a signal.

       EIO	       The  process  is a member of a background process group attempting to write to its controlling terminal, TOSTOP is set, the
		       process is neither ignoring nor blocking SIGTTOU and the process group of the process is orphaned.

       ENOSPC	       There was no free space remaining on the device containing the file.

       EPIPE	       An attempt is made to write to a pipe or FIFO that is not open for reading by any process. A SIGPIPE signal  will  also	be
		       sent to the calling thread.

       The fclose() function may fail if:

       ENXIO	       A request was made of a non-existent device, or the request was beyond the limits of the device.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       close(2), exit(2), getrlimit(2), ulimit(2), fopen(3C), stdio(3C), attributes(5), standards(5)

SunOS 5.10							    1 Nov 2003								fclose(3C)