Widen
template <class E, class T = std::char_traits<E>, class Sub1 = std::allocator<E>> class Widen : public std::unary_function<const std::string&, std::basic_string<E, T, Sub1>>
This class is taken from http://www.c-plusplus.de/forum/168607
template <class E, class T = std::char_traits<E>, class Sub1 = std::allocator<E>> class Widen : public std::unary_function<const std::string&, std::basic_string<E, T, Sub1>>
This class is taken from http://www.c-plusplus.de/forum/168607