Returns the address of the BSTR stored in the m_str member.
CComBstr operator & has a special assertion associated with it to help identify memory leaks. The program will assert when the m_str member is initialized. This assertion was created to identify situations where a programmer uses the & operator to assign a new value to m_str member without freeing the first allocation of m_str. If m_str equals NULL, the program assumes that m_str wasn't allocated yet. In this case, the program will not assert.
This assertion is not enabled by default. Define ATL_CCOMBSTR_ADDRESS_OF_ASSERT to enable this assertion.