9 Aug
2007
9 Aug
'07
2:16 p.m.
On Thu, Aug 09, 2007 at 07:12:12PM +0100, Sebastian Sylvan wrote:
{-#OPTIONS -funbox-strict-fields #-}
data Quad = Quad !Bool !Bool
foo True True = ... foo True False = .... ... etc...
The GHC option just causese GHC to unbox primitive types when they're strict in the data type, and the bangs cause them to be strict.
Unfortunately, Bool is not a sufficiently primitive type for that to work. Stefan