RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: C++
Expertise: Beginner
Jun 26, 2000



Building the Right Environment to Support AI, Machine Learning and Deep Learning

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.

DevX Pro
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



Thanks for your registration, follow us on our social networks to keep up-to-date