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Merge pull request #2563 from clash-lang/vecfoldnon1
Drop `1 <= n` constraint from `Foldable (Vec n)` and from `Traversable (Vec n)`.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,3 @@ | ||
CHANGED: The `Foldable (Vec n)` instance and `Traversable (Vec n)` instance no longer have the `1 <= n` constraint. `Foldable.{foldr1,foldl1,maximum,minimum}` functions now throw an error at run-/simulation-time, and also at HDL-generation time, for vectors of length zero. | ||
CHANGED: The `maximum` and `minimum` functions exported by `Clash.Prelude` work on non-empty vectors, instead of the more generic version from `Data.Foldable`. | ||
ADDED: `1 <= n => Foldable1 (Vec n)` instance (`base-4.18+` only) |
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