Consider the following code:

enum Codes {
	kCode1,
	kCode2
};

template<Codes Code>
class Coder {
	int code() const { return Code; }
};

Coder<kCode1>	k;

The above code compiles OK. But the definition of k causes the editor to hilite the line as error with message "kCode1 is not a type name" while the template calls for a non-typename parameter.