STL or <afxtempl.h>

[s o v a n n]

Hello! :) I am making MFC application which is divided into many DLL. I am using STL and having problems with "access violation". Should I use <afxtempl.h> instead, or is there anyway to fix that STL error? Your comments would be appriciated. Sovann :)

[Bob Stanneveld]

Hello, I think that the problem is not with STL or that the collections that the MFC provides will solve the problem. What exactly is your problem? Behind every great black man...             ... is the police. - Conspiracy brother Blog[^]

[s o v a n n]

Well, when all in one EXE, everything works just fine. Until we break into many DLL and pass/save pointer back/forth, we come to this "access violation". Most of the crash, we have invalid pointer such as 0xfeeefeee or 0xcccdcccd. Sovann :)

[Bob Stanneveld]

Hello, I don't know the exact meaning of those addresses, but they have something to do with uninitialized or already deleted pointers. The rule of thumb is that you do not spread your memory management across different modules, that is, you should not allocate a block in your DLL A and free it in another module. Your problem might be here. Maybe you should make a copy of a memory block when it's saved across module boundraries. Hope this helps. Behind every great black man...             ... is the police. - Conspiracy brother Blog[^]

[s o v a n n]

Thank you for your comments. I would reconsider the memory management. Sovann.

[Dudi Avramov]

Read You may experience an access violation when you access an STL object through a pointer or reference in a different DLL or EXE and How to export an instantiation of a Standard Template Library (STL) class and a class that contains a data member that is an STL object

[s o v a n n]

Thank you very much for your comments. I have read them all. My problem was direct access to STL object in other module. Now I am working on it. Thanks again. Have a nice day! :)