PRB: M6110 Run-Time Error Occurs When Using SYSTEMQQ or RUNQQ

  -Microsoft FORTRAN PowerStation for MS-DOS, versions 1.0 and 1.0a
  -Microsoft FORTRAN PowerStation 32 for Windows NT, version 1.0
  -Microsoft FORTRAN PowerStation 32, version 4.0

SYMPTOMS

An application that uses either the SYSTEMQQ or RUNQQ run-time functions without specifying the proper include files causes this run-time error:

   run-time error: M6110 MATH
      - floating-point error: stack overflow

CAUSE

The definitions for the SYSTEMQQ and RUNQQ functions are not found and are incorrectly interpreted by the compiler. The definitions of the two functions are located in the Flib.fi and Flib.fd include files under Microsoft FORTRAN PowerStation versions 1.0 and 1.0a for MS-DOS and Microsoft FORTRAN PowerStation 32 version 1.0 for Windows NT. If you are using Microsoft FORTRAN PowerStation 32 version 4.0, the function definitions are located in the MSFLIB module.

RESOLUTION

When using Microsoft FORTRAN PowerStation versions 1.0 and 1.0a for MS-DOS or Microsoft FORTRAN PowerStation 32 version 1.0 for Windows NT, specify the Flib.fi and Flib.fd include files in the appropriate places. Under Microsoft FORTRAN PowerStation 32 version 4.0, place the "USE MSFLIB" statement at the beginning of the program unit that references either of these functions.

STATUS

This behavior is by design.

MORE INFORMATION

Sample Code Demonstrating Behavior

C Compile options needed: none

C Running the code below causes the M6110 run-time error.

      nResult = SYSTEMQQ("DIR")

      END

Sample Code Demonstrating Solution

The following code demonstrates the solution using Microsoft PowerStation versions 1.0 and 1.0a for MS-DOS and Microsoft PowerStation 32 version 1.0 for Windows NT.

C Compile options needed: none

C The proper include files are specified and correctly referenced

      INCLUDE "FLIB.FI"
      INCLUDE "FLIB.FD"

      LOGICAL nResult

      nResult = SYSTEMQQ("DIR")

      END

Sample Code Demonstrating Solution for FORTRAN PowerStation 32 4.0

Under Microsoft FORTRAN PowerStation 32 version 4.0 using the statement "USE MSFLIB" causes the "SYSTEMQQ" function definition to be referenced correctly. The following code illustrates this:

C Compile options needed: none

      USE MSFLIB   ! Commenting this line causes the run-time error

      LOGICAL nResult

      nResult = SYSTEMQQ("DIR")

      END