DOCUMENT:Q148604  02-NOV-1999  [fortran]
TITLE   :BUG: F1001 Error If Undeclared Namelist Variable in Subroutine
PRODUCT :Microsoft Fortran Compiler
PROD/VER::4.0
OPER/SYS:
KEYWORDS:kbFortranPS kbLangFortrankbbuglist

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Fortran PowerStation for Windows 95 and Windows NT, version 4.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

Using an undeclared variable in a NAMELIST statement in an internal subroutine
when the undeclared variable has the same name as one used in the superceding
program unit in another NAMELIST statement may cause the following internal
compiler error:

   fatal error F1001: INTERNAL COMPILER ERROR
   (compiler file '..\..\\P2\main.c', line 374)

   Please choose the Technical Support command on the Developer Studio Help menu,
   or open the Technical Support help file for more information

RESOLUTION
==========

Explicitly declare all NAMELIST variables in your internal subroutines.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes available.

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

Sample Code to Illustrate Problem
---------------------------------

   C Compile options needed: none

         PROGRAM IOLIST
         INTEGER I
         NAMELIST /MAIN_LIST/ I
         I = 1
         CALL LOCAL()
         CONTAINS
           SUBROUTINE LOCAL()
   C         INTEGER I       ! Uncommenting this line prevents the error
             NAMELIST /SUB_LIST/ I
             I = 2
           END SUBROUTINE LOCAL
         END PROGRAM IOLIST

Additional query words: 4.00

======================================================================
Keywords          : kbFortranPS kbLangFortran kbbuglist
Technology        : kbAudDeveloper kbPTProdChange kbFortranSearch kbFORTRANPower400NT
Version           : :4.0

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1999.