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

 Last reviewed: September 11, 1997
Article ID: Q49495
5.00 5.10 | 5.00 5.10 
MS-DOS    | OS/2
kbusage kbfixlist kbbuglist

The information in this article applies to:

  • Microsoft FORTRAN for MS-DOS and OS/2, versions 5.0, 5.1

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 reference words: 5.00 5.10
KBCategory: kbtool kbfixlist kbbuglist
KBSubcategory: FLIss
Solution Type : kbfix

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.

Last reviewed: September 11, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.