Calling a member function for all STL map values (in a single line of code)

int newSize = 50; typedef std::map<int, vector<double>> MyMap; // call vector.resize(newSize) for all values (pair->second) of STL map for_each(m_map.begin(), m_map.end(),    tr1::bind(      mem_fun_ref(&vector<double>::resize),         tr1::bind(&MyMap::value_type::second, tr1::placeholders::_1),         newSize));