flush(3F)

NAME
     FLUSH - Writes data buffered by Fortran output statements to a file

SYNOPSIS
     CALL FLUSH(iunit, istat)

DESCRIPTION
     FLUSH writes to a file any buffered data previously written by Fortran
     output statements.  FLUSH may be called after reading or writing.  The
     current file position is not changed.

     All arguments must be of default kind unless documented otherwise.  On
     IRIX systems, the default kind is KIND=4.

     This routine has the following arguments:

     iunit     Integer variable, expression, or constant containing a
               Fortran unit number.  If this value is 101, it flushes the
               unit which is connected to standard output.  If this value
               is 102, it flushes the unit which is connected to standard
               error.

     istat     Integer variable or array element that receives the return
               status as follows:

               =0   Indicates that all buffered data, if any, was flushed.
                    A file that was immediately read, or a file with a
                    buffer that has not changed since the last flush, might
                    return a 0 status even though no new data would be
                    written to the file.

               -1   Indicates that the Fortran unit does not support FLUSH,
                    and no data was written to the file.

               >0   Indicates that an error condition was encountered.  The
                    specific error number is returned.  Use the explain(1)
                    command for a description of the error code.

NOTES
     If FLUSH is called with an unconnected unit, an error condition
     results (except for units 101 and 102).  Calling FLUSH for a file for
     which the program does not have write permission returns a 0 status if
     no data was written to that file previously with Fortran I/O
     statements.

SEE ALSO
     explain(1)