[Boost-users] Help in calculating the size of a boost::unordered_map

Hi, I would like to calculate the size of my filled up boost::unordered_map including the house keeping. I was thinking of sizeof(boost:unordered_map mymap). I asked this question on stackoverflow but they say that wont help. Can somebody tell me an easy way to find the size including the housekeeping that it takes? The boost::unordered_map stores a std::string as the key and a pointer to my class object as the value. Thanks, Ram