typename

The keyword typename can be used instead of class in template parameter lists: 
	template<typename T> class List;

But the more important use is to identify qualified names as types in the same way that template was used above to identify member templates: 

	template<class T>
	class Wrapper
	{
		// ...
		typename T::X data;	// X is a type member
		                   	// of the parameter T
	};