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<mdspan>: Make extents truly empty when rank_dynamic() == 0 #3825

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StephanTLavavej merged 4 commits into from
Jul 3, 2023
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<mdspan>: Make extents truly empty when rank_dynamic() == 0 #3825

StephanTLavavej merged 4 commits into from
Jul 3, 2023

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@JMazurkiewicz
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@JMazurkiewicz JMazurkiewicz commented Jun 23, 2023 •
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  • Introduce _Calculate_rank_dynamic template variable for easier rank_dynamic() computations,
  • Introduce _Maybe_empty_array - a base class for std::extents and (in the future) for std::layout_stride::mapping,
  • Remove extents::_Static_extents_only and extents::_Dynamic_extents,
  • Add tests.

@JMazurkiewicz JMazurkiewicz requested a review from a team as a code owner June 23, 2023 13:51
@JMazurkiewicz
<mdspan>: Make extents truly empty when rank_dynamic() == 0
b41de37 
* Introduce `_Calculate_rank_dynamic` template variable for easier `rank_dynamic()` computations,
* Introduce `_Dynamic_extents_array` - a base class for `std::extents`,
* Remove `extents::_Static_extents_only` and `extents::_Dynamic_extents`,
* Add tests.
@StephanTLavavej StephanTLavavej added the mdspan C++23 mdspan label Jun 30, 2023
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StephanTLavavej approved these changes Jul 3, 2023
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@StephanTLavavej StephanTLavavej added the performance Must go faster label Jul 3, 2023
@StephanTLavavej StephanTLavavej merged commit 2a12d44 into microsoft:feature/mdspan2 Jul 3, 2023
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StephanTLavavej commented Jul 3, 2023

Awesome, thank you! I had one suggestion for followup. 😻 🎉

@JMazurkiewicz JMazurkiewicz deleted the mdspan/ebo-extents branch July 3, 2023 23:19
JMazurkiewicz added a commit to JMazurkiewicz/STL that referenced this pull request Jul 4, 2023
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Address microsoft#3825 (comment)
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JMazurkiewicz added a commit to JMazurkiewicz/STL that referenced this pull request Jul 5, 2023
@JMazurkiewicz
Address microsoft#3825 (comment)
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@JMazurkiewicz JMazurkiewicz mentioned this pull request Jul 5, 2023
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@StephanTLavavej StephanTLavavej mentioned this pull request Aug 16, 2023
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