ATL / WTL / STL

class CFoo
{
    ...
    void fn(int n, std::string str)
    {
        // Do something
    }
};

...

std::vector<boost::shared_ptr<CFoo> > v;
v.push_back(boost::shared_ptr<CFoo>(new CFoo));
...
for_each(v.begin(), v.end(), boost::bind(&CFoo::fn, _1, 1234, "Boost!"));

v.push_back(boost::shared_ptr<CFoo>(new CFoo));

typedef boost::shared_ptr<CFoo> foo_sp;
...
v.push_back(foo_sp(new CFoo));