and ! from with the
imports I'm using
import Data.Map (Map) (fromList,!) ???
import qualified Data.Map as Map (fromList,!) ???
Michael
--- On Mon, 6/8/09, Toby Hutton toby.hut...@gmail.com wrote:
From: Toby Hutton toby.hut...@gmail.com
Subject: Re: [Haskell-cafe] Applying Data.Map
To: michael
On Tue, Jun 9, 2009 at 15:23, michael ricenowg...@yahoo.com wrote:
import Data.Map (Map) (fromList,!) ???
import qualified Data.Map as Map (fromList,!) ???
Because ! is an operator, you need to enclose it in parentheses. Also,
the (Map) in the import is already the list of things you are
In the import statements, it wasn't clear to me that I could import types as
well as functions, and Map is a type. All clear now.
Thanks.
Michael
--- On Tue, 6/9/09, Thomas ten Cate ttenc...@gmail.com wrote:
From: Thomas ten Cate ttenc...@gmail.com
Subject: Re: [Haskell-cafe] Applying
Although in this example using Data.Map is overkill, if the alphabet was
very large then Data.Map probably would be the way to go. In that case I'd
use:
map head . group . sort instead of nub . sort
since it's noticeably quicker for large lists. This is because nub needs to
preserve the order
