Q106723: BUG: Redirection of Input to a Spawned PowerStation App Fails

Article: Q106723
Product(s): Microsoft Fortran Compiler
Version(s): 1.0,1.0a
Operating System(s): 
Keyword(s): 
Last Modified: 02-NOV-1999

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The information in this article applies to:

- Microsoft FORTRAN PowerStation for MS-DOS, versions 1.0, 1.0a 
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SYMPTOMS
========

PowerStation applications spawned with either SYSTEMQQ or RUNQQ hang when input
is redirected from a file. Also, the input is split and directed at both the
application and the console.

CAUSE
=====

The MS-DOS extender that comes with PowerStation does not handle console input
the same way as MS-DOS does. The hang occurs because the spawned application is
waiting for an end-of-file (EOF).

STATUS
======

Microsoft has confirmed this to be a problem in FORTRAN PowerStation version 1.0
and version 1.0a for MS-DOS.

This is not a problem in FORTRAN PowerStation 32.

MORE INFORMATION
================

Applications that are not MS-DOS extended handle redirection input incorrectly
when spawned with RUNQQ or SYSTEMQQ.

To demonstrate the problem, follow these steps:

1. Copy both sample programs into the same directory.

2. Compile both TEST.FOR and B.FOR with FORTRAN PowerStation 1.0 for MS-DOS.

3. Run TEST.EXE.

Sample Code #1 (TEST.FOR)
-------------------------

  C No compiler options required
        include 'flib.fi'
        include 'flib.fd'
        if(.not.SystemQQ('b < test.for')) print*, 'systemqq failed'
        end

Sample Code #2 (B.FOR)
----------------------

  C No compiler options required
        character*20 c
        ierr = 0
        do while(ierr.ne.-1)
          read(*,"(a)",iostat=ierr) c
          print*, c
        end do
        end

Additional query words: nofpsnt 1.00

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Keywords          :  
Technology        : kbAudDeveloper kbFortranSearch kbZNotKeyword3 kbFORTRANPower100DOS kbFORTRANPower100aDOS
Version           : :1.0,1.0a

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