JuliaArrays / JuliaArrays/StaticArrayInterface.jl
Bug in `strides` for reshaped views
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- Dominant language
- Julia
- Stars
- 14
- Forks
- 8
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Description
julia> using ArrayInterface
julia> u_base = randn(10, 10); u_view = view(u_base, 3, :); u_reshaped_view1 = reshape(u_view, 1, :); u_reshaped_view2 = reshape(u_view, 2, :);
julia> ArrayInterface.strides(u_reshaped_view1)
(static(1), 1)
julia> ArrayInterface.strides(u_reshaped_view2)
(static(1), 2)
These seem to be wrong, I think. Because of ArrayInterface.strides(u_view) == (10,), the strides should be
ArrayInterface.strides(u_reshaped_view1) = (10 #= doesn't matter since there is only one element in this dimension =#, 10)ArrayInterface.strides(u_reshaped_view1) = (10, 20)
Is that correct?
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- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
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Research direction
Start by reproducing the reported Julia REPL cases for ArrayInterface.strides on u_view and the two reshaped views. Trace the strides entry point for view and reshape behavior, then compare the results with the expected (10,) and (10, 20) semantics. Done means the behavior is clarified or corrected and the reported cases are covered by tests.
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Assessment
- Tech stack
- julia
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100