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Q49495: FIX: F1001: ctypes.c When FORTRAN Program Contains $NOLOOPOPT

Article: Q49495
Product(s): Microsoft Fortran Compiler
Version(s): 5.0,5.1
Operating System(s): 
Keyword(s): 
Last Modified: 04-MAY-2001

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The information in this article applies to:

- Microsoft FORTRAN compiler for OS/2, versions 5.0, 5.1 
- Microsoft FORTRAN Compiler for MS-DOS, versions 5.0, 5.1 
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SYMPTOMS
========

An attempt to compile an application fails and the compiler generates one of the
following messages. For FORTRAN version 5.0:

  fatal error F1001: Internal Compiler Error
  (compiler file '@(#)ctypes.c:1.11', line 1657)

For FORTRAN version 5.1:

  fatal error F1001: Internal Compiler Error
  (compiler file '@(#)ctypes.c:1.12', line 1655)

CAUSE
=====

The application source code contains the $NOLOOPOPT metacommand.

RESOLUTION
==========

To work around this problem, perform one of the following two steps:

- Modify the source code to remove the $NOLOOPOPT metacommand.

- Specify the /Od compiler option switch to suppress the optimization.

STATUS
======

Microsoft has confirmed this to be a problem in FORTRAN versions 5.0 and 5.1 for
MS-DOS and OS/2. This problem was corrected in FORTRAN PowerStation.

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

The following code example demonstrates this problem.

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

  C Compile options needed: None
  $NOLOOPOPT
        END

Additional query words: 5.00 5.10

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbFortranSearch kbZNotKeyword3 kbFORTRAN510DOS kbFORTRAN500DOS kbFORTRAN500OS2 kbFORTRAN510OS2
Version           : :5.0,5.1
Issue type        : kbbug
Solution Type     : kbfix

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