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Define a test of endpoint overlap.

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This commit is contained in:
Rob Rix 2017-03-09 10:48:11 -05:00
parent 4ad49d4f82
commit 0624d24aa7
1 changed files with 3 additions and 0 deletions
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src/SES/Myers.hs
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@ -49,6 +49,9 @@ at v (Diagonal k) = do
Diagonal o <- gets offset Diagonal o <- gets offset
return (Endpoint (v Vector.! o + k, 0)) return (Endpoint (v Vector.! o + k, 0))
overlaps :: Endpoint -> Endpoint -> Bool
overlaps (Endpoint (x, y)) (Endpoint (u, v)) = x - y == u - v && x <= u
-- Instances -- Instances