Heap Issue

I have a class A (from a DllA) inside a method that does a new on a class B defined in the DllB, uses it and deletes it. When the destructor of the class B is invoked, a crash occurs. The class B keeps pointers on classes from a DllC and deletes them in the destructor.

I get an error related to heap management. The assert is in dbgheap.c: _ASSERTE(_CrtIsValidHeapPointer(pUserData));

What is wrong in this configuration?

You can’t delete an object that was allocated in one dll in another dll if the two dll’s use different heaps (this is the default setting for Win32 applications). You should configure your project to use a single heap for all dll’s. Consult your compiler’s online help for the exact setting details, as they vary among compilers.

Alternatively, make sure that every dll takes care of the creation and destruction of its own objects.

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