[all-commits] [llvm/llvm-project] 74e70b: [libc++] Disallow character types being index type...

[A. Jiang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74e70bae15b2e150d763f6b9035627b822891327
      https://github.com/llvm/llvm-project/commit/74e70bae15b2e150d763f6b9035627b822891327
  Author: A. Jiang <de34 at live.cn>
  Date:   2024-08-27 (Tue, 27 Aug 2024)

  Changed paths:
    M libcxx/include/__mdspan/extents.h
    M libcxx/test/libcxx/containers/views/mdspan/extents/assert.conversion.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/extents/assert.ctor_from_array.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/extents/assert.ctor_from_integral.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/extents/assert.ctor_from_span.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_left/assert.conversion.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_left/assert.ctor.extents.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_left/assert.ctor.layout_right.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_left/assert.ctor.layout_stride.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_right/assert.conversion.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_right/assert.ctor.extents.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_right/assert.ctor.layout_left.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_right/assert.ctor.layout_stride.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_stride/assert.conversion.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_stride/assert.ctor.extents_array.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/layout_stride/assert.ctor.extents_span.pass.cpp
    M libcxx/test/libcxx/containers/views/mdspan/mdspan/assert.size.pass.cpp
    A libcxx/test/std/containers/views/mdspan/extents/index_type.verify.cpp

  Log Message:
  -----------
  [libc++] Disallow character types being index types of `extents` (#105832)

#78086 provided the trait we want to use for this: `__libcpp_integer`.

In some `libcxx/containers/views/mdspan` tests, improper uses of `char` 
are replaced with `signed char`. 

Fixes #73715



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