[boost] ublas::vector from std::vector

I noticed there is no constructor for ublas::vector that takes a pair of iterators. Is there no direct way to construct a ublas::vector from a std::vector? Could there either be a constructor: (STL-style) template<typename input_iterator> vector (input_iterator begin, input_iterator end); or: (range-style) template<typename cont_t> vector (cont_t const&)