On Wed, May 30, 2001 at 09:46:53AM -0700, Simon Peyton-Jones wrote:
> | Sorry to get this comment in so late, but it is a small
> | change. In the List module, the type signature for deleteBy
> | is not as general as it could be, given the definition. It
> | could be generalized to the following (no change to the definition):
> |
> | deleteBy :: (a -> b -> Bool) -> a -> [b] -> [b]
> |
> | I've found it usefully used at this more general type.
>
> Indeed, and
>
> deleteFirstsBy :: (a -> b -> Bool) -> [b] -> [a] -> [b]
and
intersectBy :: (a -> b -> Bool) -> [a] -> [b] -> [a]
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