| 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]
I can't see any reason not to do this. Furthermore, the Report omits
to export deleteFirstsBy, though GHC and Hugs both remember to do so.
Simon
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