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Editorial Team
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Asked: 2026-06-04T07:46:16+00:00

Since some days, I have been facing a problem in Visual Studio 2008, related

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Since some days, I have been facing a problem in Visual Studio 2008, related to my C++ software.
If I set Visual Studio settings to “Release Win32” mode, it works fine.

But if I set it to “Debug Win32”, it has crash problems when using delete. Compiling is alright, but, when running, the software crashes on 1st “delete” it meets.

Consider this snaphsot:

enter image description here

As you can see, when software arrives to “delete temp;” command execution, it crashes showing the message:

Debug Assertion Failed!
Program…
Expression _BLOCK_TYPE_IS_VALID(pHead->nBlockHouse)

What is the problem?
How to solve it?

Why in “Release” mode it doesn’t have any errors?

Thanx

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1 Answer

  1. Editorial Team

    You should only delete what you new and delete[] what you new[]. Nothing else. You’re also trying to use a null pointer to call a function. What happens when you try to call a method of nothing? Well, it can’t be anything good.

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