15 Jul
2003
15 Jul
'03
4:07 p.m.
In article <200307141536.39157.qrczak@knm.org.pl>, Marcin 'Qrczak' Kowalczyk <qrczak@knm.org.pl> wrote:
It doesn't provide instances of Num for anything which is already an instance of the other classes. And in Haskell 98 they must be defined separately for each type, instance (...) => Num a doesn't work.
It works in extended Haskell however, so I suspect it lays to rest the question of needing some other language extension. -- Ashley Yakeley, Seattle WA