fclose(3S)             UNIX System V(C Development Set)              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.















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