SEH exception with code 0xc0000005 thrown in the test body

Question

I am writing a test using GoogleTest for the following class and I am getting the above error.

class Base
{
    // Other Functions;

    CSig objSig[50];
}

The Class CSig is as follows:

class CSig
{
    //... constructor, destructor(empty) and some functions
    CMod *objMod;
    CDemod *objDemod;
}

CSig :: CSig
{
    bIsInitialised = false;

    for (int i=0; i<MAX_NUM; i++)
    {
        PStrokePrev[i] = 0.0;
    }
}

However, when I discard CSig objSig[50], the tests run fine.

What can I do to solve this issue? Also, I need to have CSig objSig[50] in the Base class.

Answer 1

A SEH (Structured Exception Handling) exception is not a C++-exception that can be handled using c++-language constructs (try-catch) but it is raised from windows itself and points to some fundamental flaw. SEH-exceptions are very annoying because they do not cause normal stack unwinding which can lead to unclosed files or not-unlocked mutexes that should normally cleared by the destructors of the owning object. I have encountered SEH-exceptions when accessing memory that does not belong to the current process so I recommend looking at memory-related instructions in the constructor and destructor of CSig. You can read about SEH, for instance, here