Oh, woops. Maybe they I only updated my belief before 2020. OP is right about one thing, cppreference is great. https://en.cppreference.com/w/cpp/language/const

Oh, woops. Maybe they I only updated my belief before 2020. OP is right about one thing, cppreference is great. https://en.cppreference.com/w/cpp/language/constraints https://en.cppreference.com/w/cpp/language/constraints