Walter Bright wrote:
I can expound on the huge advantages immutability and purity offer, if you want.
Yes, I'd like to hear about this. You can leave away the things that are not going to be implemented (like memorization of pure return values), are only micro-optimizations (common sub-expression elimination with pure functions?), which don't work (immutable was used to make strings read-only, but you can stomp over immutable arrays), which were thought to be useful, but nothing has materialized yet (something like immutable was supposed to be the cure for multithreading)...
Over two years have passed since immutable/const was added to dmd, but I couldn't see any benefit yet. But lots of new compiler bugs. There's the danger that those feature are all nothing but hot air in real programming. I like D, and it sure would relief me to hear that this is not the case.
