#include <boost/typeof/typeof.hpp>

#include <string>
#include <vector>

template<class T> T* add_ptr(T const&);

int main()
{
    int i;
    typedef BOOST_TYPEOF(add_ptr(i)) int_ptr;
    int_ptr pi = &i;

    std::string s;
    typedef BOOST_TYPEOF(add_ptr(s)) string_ptr;
    string_ptr ps = &s;

    std::vector<char> vc;
    typedef BOOST_TYPEOF(add_ptr(vc)) vector_char_ptr;
    vector_char_ptr pvc = &vc;

    std::vector<std::string> vs;
    typedef BOOST_TYPEOF(add_ptr(vs)) vector_string_ptr;
    vector_string_ptr pvs = &vs;
}