fclose(3S)          (C Programming Language Utilities)           fclose(3S)


   NAME
         fclose, fflush - close or flush a stream

   SYNOPSIS
         #include <stdio.h>

         int fclose (FILE *stream);

         int fflush (FILE *stream);

   DESCRIPTION
         fclose causes any buffered data waiting to be written for the named
         stream [see intro(3)] to be written out, and the stream to be closed.
         If the underlying file pointer is not already at end of file, and the
         file is one capable of seeking, the file pointer is adjusted so that
         the next operation on the open file pointer deals with the byte after
         the last one read from or written to the file being closed.

         fclose is performed automatically for all open files upon calling
         exit.

         If stream points to an output stream or an update stream on which the
         most recent operation was not input, fflush causes any buffered data
         waiting to be written for the named stream to be written to that
         file.  Any unread data buffered in stream is discarded.  The stream
         remains open.  If stream is open for reading, the underlying file
         pointer is not already at end of file, and the file is one capable of
         seeking, the file pointer is adjusted so that the next operation on
         the open file pointer deals with the byte after the last one read
         from or written to the stream.

         When calling fflush, if stream is a null pointer, all files open for
         writing are flushed.

   SEE ALSO
         close(2), exit(2), intro(3), fopen(3S), setbuf(3S), stdio(3S).

   DIAGNOSTICS
         Upon successful completion these functions return a value of zero.
         Otherwise EOF is returned.













   8/91                                                                 Page 1