[PATCH v3 0/4] libstdc++: Implement padded layouts.

[Luc Grosheintz]

Changes since v2:

  - Refactored/rewrote the implementation of layout_left_padded.
  - Added implementation of layout_right_padded.
  - Implemented the review comments.

Luc Grosheintz (4):
  libstdc++: Prepare mapping layout tests for padded layouts.
  libstdc++: Refactor __mdspan::__static_quotient.
  libstdc++: Implement std::layout_left_padded.
  libstdc++: Implement layout_right_padded.

 libstdc++-v3/include/bits/version.def         |  10 +
 libstdc++-v3/include/bits/version.h           |   9 +
 libstdc++-v3/include/std/mdspan               | 947 +++++++++++++++++-
 libstdc++-v3/src/c++23/std.cc.in              |   9 +-
 .../mdspan/layouts/class_mandate_neg.cc       |   1 +
 .../23_containers/mdspan/layouts/ctors.cc     |  70 +-
 .../23_containers/mdspan/layouts/empty.cc     | 161 +--
 .../23_containers/mdspan/layouts/mapping.cc   | 242 ++++-
 .../23_containers/mdspan/layouts/padded.cc    | 679 +++++++++++++
 .../mdspan/layouts/padded_neg.cc              | 352 +++++++
 .../mdspan/layouts/padded_traits.h            | 192 ++++
 11 files changed, 2535 insertions(+), 137 deletions(-)
 create mode 100644 libstdc++-v3/testsuite/23_containers/mdspan/layouts/padded.cc
 create mode 100644 libstdc++-v3/testsuite/23_containers/mdspan/layouts/padded_neg.cc
 create mode 100644 libstdc++-v3/testsuite/23_containers/mdspan/layouts/padded_traits.h

-- 
2.50.1