Q109998

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page	Q109998: FIX: Divide by Zero Run-Time Error Not Produced	/kb/109/Q109998/

Q109998: FIX: Divide by Zero Run-Time Error Not Produced

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Article: Q109998
Product(s): Microsoft Fortran Compiler
Version(s): 1.0
Operating System(s): 
Keyword(s): 
Last Modified: 24-MAR-2000

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The information in this article applies to:

- Microsoft FORTRAN PowerStation for MS-DOS, version 1.0 
- Microsoft Fortran Powerstation 32 for Windows NT, version 1.0 
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SYMPTOMS
========

Under certain conditions, the Microsoft FORTRAN compiler will execute a program
without reporting any error, when in fact a divide-by-zero error has occurred.

CAUSE
=====

The run-time library is not being brought into the executable, so no run- time
error will occur.

STATUS
======

Microsoft has confirmed this to be a problem in FORTRAN PowerStation 32 for
Windows NT and MS-DOS, version 1.0. This problem has been resolved with FORTRAN
PowerStation maintenance release version 1.0a for MS-DOS.

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

FORTRAN PowerStation version 1.0 for MS-DOS can be differentiated from the
maintenance release version 1.0a by invoking the linker. Typing "link32 | more"
(without the quotation marks) from \F32\BIN directory will show version 2.8 for
FORTRAN PowerStation version 1.0 for MS-DOS, and it will show version 1.0f for
the maintenance release version 1.0a. This problem is rare because almost every
program written uses run-time functions. To make the program give the proper
run-time error, use any run-time routine such as WRITE to ensure the run-time
routines are part of the executable. The sample code below will exhibit the
run-time error. If the WRITE statement is removed, the code will complete
without an error.

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

  C compile options needed: none
  C

         a=1.
         b=0.
         c=a/b
         write (*,*) c
         end

Additional query words: 1.00 buglist1.00 fixlist1.00a

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Keywords          :  
Technology        : kbAudDeveloper kbFortranSearch kbZNotKeyword2 kbZNotKeyword3 kbFORTRANPower32100NT kbFORTRANPower100DOS
Version           : :1.0
Issue type        : kbbug
Solution Type     : kbfix

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