Question

The CAdapt class is provided by Microsoft in order to enable using classes that override the address of operator (operator&) in STL containers. MSDN has this to say about the use of CAdapt:

Typically, you will use CAdapt when you want to store CComBSTR, CComPtr, CComQIPtr, or _com_ptr_t objects in an STL container such as a list.

On to my quesiton:

What is the full list of STL containers with which CAdapt should be used?

If the container contains a key/value pair (such as map) please specify whether CAdapt is needed for the key or the value.

Answer 1

What is the full list of STL containers with which CAdapt should be used?

None. Implementations should assume operator& is overloaded, and use the correct expression &reinterpret_cast<char&>(obj)

Now, there is another question that you didn’t ask:

My VC++ STL implementation doesn’t agree. It does provide CAdapt as a workaround. What is the full list of its containers with which CAdapt should be used?

Top of my head, I’d day vector<T> (stores them as a T[] so reasonably needs arithmetic on them) and deque (stores them as multiple smaller T[]s so same rationale). list, map, set, multiset and multimap all work on nodes, so they themselves already wrap each object.