14 May
2013
14 May
'13
6:48 a.m.
fromMaybe mempty
--
Karol Samborski
2013/5/14 Mats Rauhala
maybe mempty id
On Tue, May 14, 2013 at 05:21:44PM +0800, Adrian May wrote:
Hi there,
I have a really annoying scrap of code:
unmaybe Nothing = mempty unmaybe (Just dia) = dia
It happened because I'm using Diagrams but building my diagram requires looking something up in a list using findIndex, which returns Maybe Int.
How do I rid myself of this blotch?
TIA, Adrian.
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-- Mats Rauhala MasseR
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