21 Nov
2002
21 Nov
'02
5:34 a.m.
Andrew and list, I am a beginer. I really don't know what I would do if I derived Color from Enum. You say I could create elements that way. Is there some simple example someone could post to the list? Thank you for your help. -mike On Thu, Nov 21, 2002 at 01:55:55PM +1100, Andrew J Bromage wrote:
G'day all.
On Wed, Nov 20, 2002 at 08:44:36PM -0500, Mike T. Machenry wrote:
I am trying to construct an infinate list of pairs of random colors. I am hung up on getting a random color. I have:
data Color = Blue | Red | Green deriving (Eq, Ord, Show)
am I supposed to instantiate a Random class instance from color?
You could derive instances of Enum (and possibly also Bounded) and create random elements that way.
Cheers, Andrew Bromage