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| author | Tom Smeding <tom@tomsmeding.com> | 2024-11-22 11:58:44 +0100 |
|---|---|---|
| committer | Tom Smeding <tom@tomsmeding.com> | 2024-11-22 11:58:44 +0100 |
| commit | 03b7cea970d0840a913b6e64a9439fb115dea8d0 (patch) | |
| tree | 57b0fa5393a8d76188b423cece5610aec4e94b4a | |
| parent | 5f8b9ea3a9bacfec0fb1558a0199ea7952b2641e (diff) | |
Fix X.empty
S.constant always evaluates its argument.
| -rw-r--r-- | src/Data/Array/Mixed/XArray.hs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/Data/Array/Mixed/XArray.hs b/src/Data/Array/Mixed/XArray.hs index 999ccc3..81b92c5 100644 --- a/src/Data/Array/Mixed/XArray.hs +++ b/src/Data/Array/Mixed/XArray.hs @@ -310,8 +310,10 @@ toList1 (XArray arr) = S.toList arr empty :: forall sh a. Storable a => IShX sh -> XArray sh a empty sh | Dict <- lemKnownNatRank sh - = XArray (S.constant (shxToList sh) - (error $ "Data.Array.Mixed.empty: shape was not empty: " ++ show sh)) + , shxSize sh == 0 + = XArray (S.fromVector (shxToList sh) VS.empty) + | otherwise + = error $ "Data.Array.Mixed.empty: shape was not empty: " ++ show sh slice :: SNat i -> SNat n -> XArray (Just (i + n + k) : sh) a -> XArray (Just n : sh) a slice i n (XArray arr) = XArray (S.slice [(fromSNat' i, fromSNat' n)] arr) |