On Fri, 17 Nov 2006, Valentin Gjorgjioski wrote:
Is some kind of collection of object with different types in Haskell exist? Except the tuples, which have fixed length. I find this
* Tuples heterogeneous, lists homogeneous. * Tuples have a fixed length, or at least their length is encoded in their type. That is, two tuples with different lengths will have different types. * Tuples always finite.
But I need something which is heterogeneous and non-fixed length. I'm used do Java, and this switch to functional languages is very strange to me. So, to be clear, I need something like LinkedList<Object> in java.
Can you please help me or suggest me, what can I use in this case?
If the number of types to cover is fixed, then I suggest a data type like data T = ConsInt Int | ConsString String | ConsChar Char Since this is a very FAQ I wonder why I don't find the answer in any of the Haskell wikis.