+ bool typeExist(std::string const & t) const;
+ ///
+ bool allowsWide(std::string const & t) const;
+ ///
+ bool allowsSideways(std::string const & t) const;
+ ///
+ Floating const & getType(std::string const & t) const;
+ ///
+ void erase(std::string const & t);
+ ///
+ const_iterator operator[](std::string const & t) const;