On 10/30/19 10:49 PM, Ville Voutilainen via Std-Proposals wrote:

> If I then _don't_ want to expose such a template parameter name, what do I do?

The proposal could make it opt-in instead of opt-out. That would not
expose existing template parameters without the consent of the
template author. For example:

template <explicit class value_type,
           explicit class allocator_type>
struct vector {
};