new (static_cast<void*>(this)) TestClass(passedInt);

[Sendil kumar]

Hi All,

Can anybody tell me how the below statement executes.

class TestClass
{
int m_testValue;
public:
TestClass(int testVal)
{
m_testValue = testVal;
}

~TestClass() { }

void callBack(int passedInt)
{
new (static_cast<void*>(this)) TestClass(passedInt); //How this executes?
//What is the meaning for it?
}
};

Thanks,
Sendil

[Banfa]

Well it doesn't compile for me (in VS 2005 Express with MS extensions off), what compiler are you compiling it in?

[Sendil kumar]

I'm using Visual Studio 2005 Professional Edition Version 8.0.5

[Banfa]

And does it compile without warning?