ANNOUNCE: GHC 7.0.1 Release Candidate 1

Daniel Fischer at
Wed Sep 29 11:58:14 EDT 2010

On Wednesday 29 September 2010 16:51:35, Antoine Latter wrote:
> Here's a boiled-down equivalent to what the issue is in uvector:
> In GHC 6.12, this would have type-checked. In GHC 7, I need to add a
> type-signature to the 'helper' function, except I 'm not sure how to
> do it.
> So the function in uvector might need a larger refactoring.
> Antoine

It works if you define helper inside the runST via a let (no type 
I suspect that would become a larger refactoring in uvector, but at least 
there's a simple way.

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