Walter Bright:
CTFE is still slow,
I don't agree. Given that what's run at compile-time is statically typed code that's easy to optimize, then with techniques that are simpler that ones used by LuaJIT CTFE or JavaScript V8 JIT (that work on dynamically tyed code, that requires lot of work to optimize well), it is able to become almost as fast as regular D code (such JITs compile only if a computation/loop takes a large enough amount of time, otherwise they interpret efficiently).
Bye, bearophile
