* Serge D. Mechveliani
But it is generally difficult for me to admit that sometimes it is desirable to use strinctess annotation. I programmed DoCon for 6 years, and it does not have any bit of strictness annotation, and I always had an impression that it is all right with performance.
Yeah, I was also surprised that this is news to you :)
And now it occurs that setting $! in some places may make many parts of it somewhat 100 times less expensive -- ? Somehow difficult to admit.
Laziness is subtle. Sometimes you make an innocent change to a program, but it changes the time when things are evaluated, and that affects memory/performance significantly. In general, you'd rather understand evaluation order in your program if you want decent performance. Roman