Suppose there is a data definition in Haskell:
data MyType = MyType { date :: Double,
weight :: Double,
height:: Double
} deriving (Eq, Ord, Show)
Is it possible to check if the field height, for example, is filled
On 6/15/06, Vladimir Portnykh [EMAIL PROTECTED] wrote:
Suppose there is a data definition in Haskell:
data MyType = MyType { date :: Double,
weight :: Double,
height:: Double
} deriving (Eq, Ord, Show)
Is it possible to
On Thu, 2006-06-15 at 12:43 +0100, Vladimir Portnykh wrote:
Suppose there is a data definition in Haskell:
data MyType = MyType { date :: Double,
weight :: Double,
height:: Double
} deriving (Eq, Ord, Show)
Is it possible to
Duncan Coutts wrote:
On Thu, 2006-06-15 at 13:11 +0100, Duncan Coutts wrote:
then you can construct your records using:
foo = default { weight = 3.2 }
Oops, as David House pointed out to me that should of course be
foo = default { weight = Just 3.2 }
I think the
Vladimir,
I think you forgot to put Haskell-cafe as a recipient of this email,
so first I'll repost what you wrote.
On 6/15/06, Vladimir Portnykh [EMAIL PROTECTED] wrote:
many thanks. i have the follwoing code:
module MyType (DataContainer(..)) where
import Maybe
data DataContainer =
