Undefined Address - Pointer

[fwess]

Hello,

I am confronted with a problem while debugging and I have attached an example for this problem to this post. I do not know whether this is a real problem with the Fortran compiler / debugger or I have made a mistake. An array referenced by a pointer is used in a subroutine. The watch window says it has an "undefined address". I am using Intel Visual Fortran Compiler 9.1.3192 and Visual Studio .NET 2003. Hopefully someone can tell me what is wrong. Thank you in advance.

fwess

[Steven_L_Intel1]

I can reproduce the problem with the current 9.1.034 compiler. Please submit an issue to Intel Premier Support and attach your sources. (Please use ZIP instead of RAR.)

A note - the version number you give is that of the Visual Studio integration and not the compiler version. You can get the compiler version by looking at C:Program FilesIntelCompilerFortran9.1DocsNotesfsupport.txt

[jimdempseyatthecove]

I too have run into this before. As a work around make a conditional compile section on _DEBUG that creates a helperlocal pointer to the array and an conditional compile section to initialize the pointer to the location specifiedby the dummy argument. Then instead of watching the dummy argument, watch the alternate pointer.

The symptoms I generally saw was the array descriptior for the dummy argument was not interpreted correctly. But upon copying (=>) of descriptors the debugger would then be able to watch the array.

Note, you might want to test the dummy argument for validity too

!DEC$ IF DEFINED(_DEBUG)
real, pointer :: pArg(:)
!DEC$ ENDIF
...
!DEC$ IF DEFINED(_DEBUG)
if(.not. PRESENT(Arg))BugFound()
pArg => Arg
!DEC$ ENDIF

Jim Dempsey