P2989R3 — A Simple Approach to Universal Template Parameters
EWG
In [P1985R3](https://wg21.link/P1985R3) [3], we explore universal template parameters (a template parameter that can be a type, non-type, or template name). We proposed allowing the use of universal template parameters in all contexts, which would have added a large amount of complexity to both the specification and implementations for limited benefits. In this paper, we propose a much simpler subset of the feature.