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Q148604: BUG: F1001 Error If Undeclared Namelist Variable in Subroutine

Article: Q148604
Product(s): Microsoft Fortran Compiler
Version(s): 4.0
Operating System(s): 
Keyword(s): kbFortranPS kbLangFortrankbbuglist
Last Modified: 02-NOV-1999

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The information in this article applies to:

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

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

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