Re: [Haskell-cafe] preffered 'map'

On Fri, 2005-12-09 at 00:24 +0200, raptor wrote:

hi,

I imported :

import Data.Map as Map

but now anywhere when I want ot use "map" it complains for name clashes, so I have to specifiy Prelude.map all the time. Is there a way to specify that i mean Prelude not Data 'map' (but not fqn) I use Hugs, 'cause error messages are more understandable.

The recommended way to use Data.Map is like so: import qualified Data.Map as Map then ordinary "map" still refers to Prelude.map. All Data.Map operations then need to be qualified with Map. For example: Map.empty, Map.insert, etc. So that you don't have to say Map.Map for the type name some people also add: import Data.Map (Map) so that the type name is imported unqualified. Duncan