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Fix contig check for single element arrays #1362

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merged 2 commits into from Feb 26, 2024
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@bluss bluss commented Feb 26, 2024

When an array has 0 or 1 elements, strides don't matter anymore. The general case of this function handled this correctly, but the special case for ndim == 1 did not.

Fixes #1359

src/split_at.rs Outdated Show resolved Hide resolved
@bluss bluss force-pushed the contig-for-single-element branch 2 times, most recently from 9f4cee3 to c033453 Compare February 26, 2024 19:46
bluss and others added 2 commits February 26, 2024 20:48
Co-authored-by: Adam Reichold <adamreichold@users.noreply.github.com>
When an array has 0 or 1 elements, strides don't matter anymore. The
general case of this function handled this correctly, but the special
case for ndim == 1 did not.

let arr2 = array![[1, 2, 3], [4, 5, 6]];
assert_matches!(arr2.slice(s![.., 2..3]).as_slice_memory_order(), None);
assert_matches!(arr2.slice(s![1, 2..3]).as_slice_memory_order(), Some(&[6]));
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The 2D case was working correctly before this fix too.

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bluss commented Feb 26, 2024

thanks for checking. The lint fixes are helpful here too, best to get them in.

@bluss bluss merged commit 97ecc0d into master Feb 26, 2024
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@bluss bluss deleted the contig-for-single-element branch February 26, 2024 20:31
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ArrayBase::as_slice_memory_order returns None when slice has a single element
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