[all-commits] [llvm/llvm-project] 20a6b6: [libcxx] Include __fwd/span.h in <mdspan>

[Aiden Grossman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 20a6b63f1beb8b4a2ffb2ff757c687b6a071b413
      https://github.com/llvm/llvm-project/commit/20a6b63f1beb8b4a2ffb2ff757c687b6a071b413
  Author: Aiden Grossman <aidengrossman at google.com>
  Date:   2025-06-08 (Sun, 08 Jun 2025)

  Changed paths:
    M libcxx/include/mdspan
    M libcxx/test/std/containers/views/mdspan/CustomTestLayouts.h
    M libcxx/test/std/containers/views/mdspan/extents/comparison.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/conversion.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/ctad.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/dextents.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/dims.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/index_type.verify.cpp
    M libcxx/test/std/containers/views/mdspan/extents/obs_static.pass.cpp
    M libcxx/test/std/containers/views/mdspan/extents/types.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/comparison.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/ctor.default.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/ctor.extents.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/ctor.layout_right.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/ctor.layout_stride.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/ctor.mapping.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/index_operator.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/properties.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/required_span_size.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/static_requirements.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_left/stride.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/comparison.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/ctor.default.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/ctor.extents.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/ctor.layout_left.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/ctor.layout_stride.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/ctor.mapping.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/index_operator.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/properties.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/required_span_size.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/static_requirements.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_right/stride.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/comparison.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/ctor.default.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/ctor.extents_array.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/ctor.strided_mapping.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/index_operator.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/is_exhaustive_corner_case.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/properties.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/required_span_size.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/static_requirements.pass.cpp
    M libcxx/test/std/containers/views/mdspan/layout_stride/stride.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/assign.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/conversion.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.copy.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.default.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.dh_array.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.dh_extents.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.dh_integers.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.dh_map.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.dh_map_acc.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/ctor.move.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/move.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/properties.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/swap.pass.cpp
    M libcxx/test/std/containers/views/mdspan/mdspan/types.pass.cpp

  Log Message:
  -----------
  [libcxx] Include __fwd/span.h in <mdspan>

This patch includes __fwd/span.h in <mdspan> so that we get the
declaration of dynamic_extent inside <mdspan>. We also clean up quite a
few tests that were manually included <span> for dynamic_extent.

This is based on feedback from #142693.

Reviewers: philnik777, ldionne

Reviewed By: philnik777

Pull Request: https://github.com/llvm/llvm-project/pull/142925



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