Get the address of an object that has overloaded operator&

问题

operator& for CComPtr is overloaded, which makes my generically written code crash.

I am wondering if there is any way to force a variable into returning the address of it's object?

回答1:

The solution is hideous:

reinterpret_cast<CComPtr*>(&reinterpret_cast<char&>(ptr))

回答2:

If you can use boost, consider using: addressof, if you cannot, take a look at the implementation.

回答3:

You could cast the CComPtr to a CComPtrBase, which, from what I can gather from the MSDN page, has no overloaded operator. It might look like this:

CComPtr* addr=dynamic_cast<CComPtr*>(&((CComPtrBase)theCComPtr));

I don't know if this works (I can't try it), but it seems like it might, and if it does, it's a little bit better then the reinterpret_cast solution.

来源：https://stackoverflow.com/questions/9536070/get-the-address-of-an-object-that-has-overloaded-operator