Microsoft KB Archive/148383

= BUG: INTENT(OUT) Allows Subroutine to Use Undefined Argument =

PSS ID Number: 148383

Article Last Modified on 11/2/1999

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The information in this article applies to:


 * Microsoft Fortran PowerStation for Windows 95 and Windows NT 4.0

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This article was previously published under Q148383



SYMPTOMS
An illegal use of a dummy variable specified by the INTENT(OUT) statement does not cause an appropriate compile-time error or warning message to be generated.



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
The INTENT(OUT) dummy argument must be defined by the subroutine before it is used. When the subroutine is started, the dummy argument is undefined, so any executable statement associated with it prior to its definition should cause a compilation error or warning.

Sample Code to Illustrate Problem
C Compile options needed: none

real z     z = 32 call sub(z) print *, z     end

subroutine sub(x) real, intent(out) :: x     print *, x   ! x undefined; No compiler warning or error generated X = 5 end subroutine

Additional query words: 4.00

Keywords: kbLangFortran KB148383

Technology: kbAudDeveloper kbFORTRANPower400NT kbFortranSearch kbZNotKeyword8

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