C / C++ / MFC

// this class will be used by the user of the API
// In the actual code it will be a template parameter.
class CArbitraryClass
{
public:
    void DoFoo() {}
};

// this is the wrapper that the user uses to store CArbitraryClass objects
class CWrapperClass
{
public:
    // will return a temporary object which the user doesn't know or sees
    CInvisibleTemporary operator->() 
    {
	return CInvisibleTemporary::CInvisibleTemporary();
    }
};

// this object is the 'invisible' temporary. It should pass on the 
// stored object (CArbitraryClass). The user should not have to 
// call any extra functions for it.
class CInvisibleTemporary
{
public:
    CArbitraryClass& operator->() { return m_ArbitraryObject; }

private:
    CArbitraryClass m_ArbitraryObject;
};

CWrapperClass Wrapper;<br />
Wrapper->DoFoo();

CWrapperClass Wrapper;<br />
Wrapper.operator ->().operator ->().DoFoo();