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-rw-r--r--src/Data/Array/Nested/Ranked/Base.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Ranked/Base.hs b/src/Data/Array/Nested/Ranked/Base.hs
index e4305e5..fdad141 100644
--- a/src/Data/Array/Nested/Ranked/Base.hs
+++ b/src/Data/Array/Nested/Ranked/Base.hs
@@ -180,6 +180,8 @@ instance Elt a => Elt (Ranked n a) where
vecs)
instance (KnownNat n, KnownElt a) => KnownElt (Ranked n a) where
+ type KnownEltC (Ranked n a) = (KnownNat n, KnownElt a)
+
memptyArrayUnsafe :: forall sh. IShX sh -> Mixed sh (Ranked n a)
memptyArrayUnsafe i
| Dict <- lemKnownReplicate (SNat @n)