Or maybe "consteval," which I was not aware of: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1073r3.html http://www.open-std.org/jtc1/sc22/wg21/docs

Or maybe "consteval," which I was not aware of: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1073r3.html http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p107...