Bryan O'Sullivan <[EMAIL PROTECTED]> writes:
> Pete Kazmier wrote:
>
>> data ArrayBlockingQueueSTM e = ArrayBlockingQueueSTM {
>> [...]
>> sa :: Array Int (TVar e)
>> }
>>
>> It's unclear to me why the Array's elements must be wrapped in TVars.
>
> To allow them to be modified. You can't otherwise modify the elements
> of an array without going into the ST monad.
Thanks! I forgot about the whole immutable thing :-) Haven't used
arrays yet while learning Haskell!
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