KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q112005: BUG: Illegal Formal Argument and -Zi Crash Compiler

Article: Q112005
Product(s): Microsoft Fortran Compiler
Version(s): 1.0,1.0a
Operating System(s): 
Keyword(s): 
Last Modified: 04-NOV-1999

-------------------------------------------------------------------------------
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
========

Using FORTRAN PowerStation to compile a file that contains a subprogram using a
formal argument that has the same name as that subprogram may produce the
following errors under Windows NT:

  error F2209: (variable_name) : illegal as formal argument
  fatal error C1900: Il mismatch between 'P1' version '0' and 'P2'
  version '19930414'

These error messages are then followed by a stack overflow exception.

When using FORTRAN PowerStation for MS-DOS, the F2209 error is generated. If
compiling from the Visual Workbench, the following errors also occur:

  error F2513: (variable_name) : not a variable

  error F2530: (variable_name) : symbol class illegal here

  error F2040: label on continuation line

  error F2037: illegal label field

The F2040 and F2037 errors scroll repeatedly showing negative line numbers, until
finally the compiler crashes with a DX1020 general protection (GP) fault error.
The F2040 and F2037 errors do not occur if compiled from the MS-DOS command
line, but the DX1020 error does.

In all cases the F2209 error is correct.

CAUSE
=====

This error occurs only when using the -Zi compiler option.

RESOLUTION
==========

Correct the error by renaming the formal argument. Then recompile with -Zi.

STATUS
======

Microsoft has confirmed this to be a problem in FORTRAN PowerStation version 1.0
and 1.0a for MS-DOS, and version 1.0 for Windows NT. Microsoft is researching
this problem and will post new information here in the Microsoft Knowledge Base
as it becomes available.

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

The sample below illustrates the problem:

Sample Code
-----------

  c Compile options required: -Zi
  c
          integer function i(f,i)
          integer f
          i=f(i)
          return
          end

Additional query words: 1.00 1.00a Dr. Watson subroutine

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbFortranSearch kbZNotKeyword2 kbZNotKeyword3 kbFORTRANPower32100NT kbFORTRANPower100DOS kbFORTRANPower100aDOS
Version           : :1.0,1.0a

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

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.