The problem here is that these don’t actually solve the problems that attackers use to exploit software written in C++. Nobody cares what constexpr code can’t U

The problem here is that these don’t actually solve the problems that attackers use to exploit software written in C++. Nobody cares what constexpr code can’t UB (I thought it already couldn’t…?). Attackers will take your object and double free it and there’s nothing in here that will stop them from doing that. Fixing this in C++ is actually very difficult and unfortunately the committee doesn’t want to do this because it would change the language too much. So we’re only getting the minor improvements, which are nice, but nowhere near what is necessary to “tame UB”.