31 Jul
2010
31 Jul
'10
9:32 a.m.
michael rice
From: Data.Complex
data (RealFloat a) => Complex a = !a :+ !a
What's the purpose of the exclamation marks?
Forcing; it means that the values are evaluated (up to WHNF) before the Complex value is constructed: http://www.haskell.org/ghc/docs/6.12.1/html/users_guide/bang-patterns.html -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com