21 Jun
2012
21 Jun
'12
1:15 p.m.
On Thu, Jun 21, 2012 at 5:11 AM, Rouan van Dalen
Can anyone shed some light on why the succ and pred functions of the Enum typeclass throw exceptions if we go over the upper or lower boundary, and not return Maybe a?
Enum and Bounded have a complicated and arguably incorrect[1] relationship. The whole thing should be overhauled, but this would break quite a lot of code, so is not likely to happen. [1] http://www.haskell.org/pipermail/haskell-cafe/2011-September/095431.htmlff. -- brandon s allbery allbery.b@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms