--- Wolfgang Jeltsch
Am Sonntag, 14. M�rz 2004 18:31 schrieben Sie:
[...]
And why does Seq.concat have the type Seq (Seq a) -> Seq a instead of [Seq a] -> Seq a which would be more consistent with the other modules?
I gave it some thought, and concluded that it is more important for Seq to be consitent with itself than with other modules. This really should be solved with type classes, yet we chose not to introduce new classes with DData.
Moreover, Seq is an instance of Monoid, so 'mconcat' can be used.
But why does LambdaSeq.concat have the type [LambdaSeq a] -> LambdaSeq a instead of LambdaSeq (LambdaSeq a) -> LambdaSeq a then?
I kept the old sequences (implemented as lambdas) as LambdaSeq, but did not work on it any more, so it is rather not up to date. I thought to remove it eventually. Do you think it is any worth keeping? Cheers, JP. __________________________________ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com