[Haskell-beginners] Array and IArray

Francesco Bochicchio bieffe62 at gmail.com
Thu Feb 26 14:58:02 EST 2009

Hello all,

I'm reading stuff about the different types of arrays in Haskell ...

One of the things that I don't understand
 If I do:

import Data.Array
arr = listArray (1,10) [1..]

the type of arr is Array. My question is: is this array an instance of the
type class defined in Data.Array.IArray?
Or there is another kind of immutable boxed array somewhere in haskell
The documentation makes a  reference to 'the Array type exported by
Data.Array.IArray' but if I do:

import Data.Array.IArray
arr = listArray (1,10) [1..]

I get a couple of compiler errors

Ciao & thanks in advance
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