27 Sep
2011
27 Sep
'11
2:54 p.m.
On Tue, 2011-09-27 at 09:47 -0700, Iavor Diatchki wrote:
As Ross pointed out in a previous e-mail the instance for Rationals is also broken:
last (map fromRational [1,3 .. 20]) 21.0
Sure, for Int, Rational, Integer, etc., frankly I'd be in favor of a runtime error when the last value isn't in the list. You don't need approximate behavior for those types, and if you really mean takeWhile (<= 20) [1,3..], then you should probably write that, rather than a list range notation that doesn't mean the same thing. -- Chris Smith