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L
LarsZiegler8-Gravel
8-Gravel
October 10, 2011
Question

Can't use namespaces in 64 bit dll???

  • October 10, 2011
  • 3 replies
  • 1547 views

Hello World!

I develop a sychroneapplication for Wildfire 3.0.
Now I have structured my complete project with namespaces!
That works really fine with 32-bit! But now I compile and link my projekt with
Microsoft Platform SDK for Windows Server 2003 R2 to create a 64bit dll and nothing works.


Is there a compiler-switch or anything else that i can use the namespaces on 64bit?
Why doesn't that work?



Thanks, Lars


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3 replies

M
mark_stallard1-Visitor
1-Visitor
October 10, 2011

Lars -

I assume that your C++ code failed to compile. Can you share your compiler
error messages with us?

> I develop a sychrone application for Wildfire 3.0.
> Now I have structured my complete project with namespaces!
> That works really fine with 32-bit! But now I compile and link my projekt
with
> Microsoft Platform SDK for Windows Server 2003 R2 an nothing works.

I have that same version of the Platform SDK installed. I have only
compiled
C code with it, though, not C++. I checked some of the same code and I did
find namespace declarations, so I believe this version of the SDK compiler
supports namespaces. Take a look at the makefiles in these folders:

Samples/Multimedia/DirectShow/VMR/VMRXclBasic
Samples/Multimedia/wia/GetImage

> Is there a compiler-switch or anything else that i can use the namespaces
on 64bit?

You can list all the compiler switches by typing "cl /?". I read them over
and didn't see anything specifically about namespaces, but I did see some
options to avoid. Make sure you're not using either of these:

/Tc<source file="> compile file as .c
/TC compile all files as .c

...and consider using one of these:

/Tp<source file="> compile file as .cpp
/TP compile all files as .cpp

Finally, even though the Visual Studio compiler is NOT the same as the SDK
(as
are the libraries), take a look at the compile switches in your Visual
Studio
project and look for corresponding switches in the Platform SDK compiler.

|+| M a r k |+|

Mark Stallard
Rapid Response Development
information Solutions
Integrated Defense Systems
Raytheon Company




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L
LarsZiegler8-GravelAuthor
8-Gravel
October 11, 2011

Hello,


@MARK: thanks for your answer!


My dll compiles successful. I do not have any errors or warnings!!!


Now I analysed my dll with the dependency walker.
I'm using the SAP library for Unicode librfc32u.lib (its a 64 bit library, but named with 32)
That lib uses the msvcr80.dll an it seems, that on is not 64bit.
The log of the Dependency Walker:

L
LarsZiegler8-GravelAuthor
8-Gravel
October 11, 2011

Hello,

I have solved the problem! It was a missing library!!


Including libsapucum.lib solved the problem!


Maybe this thread can help others.



Thanks!

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