5 Feb
2011
5 Feb
'11
10:36 a.m.
For what it's worth I saw the problems in your counting examples right away, without reading the explanatory text below.
Yes, they were pretty obvious with enough experience. For beginners I expect it to be a rather insidious trap.
Beginners or anybody coding Haskell while not completely awake. ;-)
Hopefully that means that it's possibly to learn how to spot such things without resorting to e.g. running the program or reading Core *gasp*.
Within limits. Detrimental laziness or strictness can be arbitrarily well hidden.
I agree. Unfortunately... :-/