Each new iterations of C++ introduces more "constexpr" elements. It's a C++ sub language to execute things "possibly at compile time". The language as a whole i

Each new iterations of C++ introduces more "constexpr" elements. It's a C++ sub language to execute things "possibly at compile time". The language as a whole is too complex (ex: threads, futures, i/o) to fully execute at compile time without introducing its own set of insanities. Along with the future compile time introspection support it will improve. For now, abusing of the template system is still popular.