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Q149158: BUG: Compiler Options /W0 and /WX Fail When Used with /4Ys

Article: Q149158
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 the /W0 or /WX compiler option with the /4Ys compiler option fails. The
/4Ys compiler switch enables strict Fortran 90 conformance and causes a warning
message to be generated for every source line that contains an obsolescent
FORTRAN 77 feature. The /W0 compiler option causes suppression of all
compilation warning messages, but when it is used with the /4Ys, compiler option
warning messages are displayed normally for every non-conforming Fortran 90
source line. Additionally, the /WX compiler option interprets all warnings as
errors, which halts the compilation process, but when it is used with /4Ys,
warnings are not interpreted as compilation errors nor is the build process
stopped.

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

Consult the Microsoft Fortran PowerStation 4.0 for Windows 95 and Windows NT
Programmers Guide, appendix B, for further information and explanations
regarding all Microsoft extension and Fortran 90 feature changes.

Using the /4Ys compiler option and attempting to use any of the following
obsolescent FORTRAN 77 features in your source code will cause a warning message
to be generated:

- Using the ASSIGN statement

- GO TO (assigned)

- IF (arithmetic)

- PAUSE

- Alternate return

- Assigned FORMAT specifiers

- Real and Double precision DO control variables

- Shared DO loop termination

- Terminating DO loops with statements other than END DO or CONTINUE

- Branch to END IF from outside IF block

- Hollerith (H) edit descriptor

REFERENCES
==========

FORTRAN 90 HANDBOOK, Adams, Brainerd, Martin, Smith, Wagener, McGraw-Hill Book
Company, 1992.

Additional query words: 4.00

======================================================================
Keywords          : kbFortranPS kbLangFortran kbbuglist
Technology        : kbAudDeveloper kbPTProdChange kbFortranSearch kbFORTRANPower400NT
Version           : :4.0

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