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Q131899: FIX: Access Violation with Large NAMELIST

Article: Q131899
Product(s): Microsoft Fortran Compiler
Version(s): 1.0,1.0a
Operating System(s): 
Keyword(s): kbCompiler kbFL32 kbFortranPSkbbuglist kbfixlist
Last Modified: 24-MAR-2000

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The information in this article applies to:

- Microsoft FORTRAN PowerStation for MS-DOS, versions 1.0, 1.0a 
- Microsoft Fortran Powerstation 32 for Windows NT, version 1.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

An application that uses a large NAMELIST may cause an access violation when
attempting to write the NAMELIST. This problem is seen most often with NAMELISTs
around 2K in size, but the problem has been known to occur with a NAMELIST as
small as 100 bytes.

RESOLUTION
==========

To work around this problem, reduce the size of the NAMELIST. This can be
accomplished by either splitting the NAMELIST into multiple smaller NAMELISTs or
by grouping variables of similar type together in an array.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This problem was corrected in FORTRAN PowerStation
32, version 4.0.

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

Sample Code to Demonstrate Problem
----------------------------------

  C
  C  Compile options needed: none
  C
  C  This program should cause an access violation

        PROGRAM NAMELISTTest

        CHARACTER*20 TheArray(100)
        INTEGER*4 Index
        NAMELIST /TheNameList/ TheArray

  C  Fill in the array
        DO Index = 1,100
            TheArray(Index) = "Testing NAMELIST"
        END DO

  C  Display the name list
        WRITE (*,TheNameList)

        END

REFERENCES
==========

For more information on a related problem, please see the following article in
the Microsoft Knowledge Base:

  Q65047 BUG: Errors F1002, F1901, R6000 Using Large Namelists

Additional query words: 5.10 1.00 1.00a

======================================================================
Keywords          : kbCompiler kbFL32 kbFortranPS kbbuglist kbfixlist
Technology        : kbAudDeveloper kbFortranSearch kbZNotKeyword2 kbZNotKeyword3 kbFORTRANPower32100NT kbFORTRANPower100DOS kbFORTRANPower100aDOS
Version           : :1.0,1.0a
Issue type        : kbbug
Solution Type     : kbfix

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

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