P0009R18 `<mdspan>`

[StephanTLavavej]

WG21-P0009R18 <mdspan>
WG21-P2599R2 mdspan: index_type, size_type
WG21-P2604R0 mdspan: data_handle_type, data_handle(), exhaustive
WG21-P2613R1 mdspan: empty()
WG21-P2763R1 Fixing layout_stride's Default Constructor For Fully Static Extents
LWG-3876 Default constructor of std::layout_meow::mapping misses precondition

Feature-test macro (expected):

#define __cpp_lib_mdspan 202207L

Internal VS-PR-420058 has taught the IDE about this new extensionless header - thanks @CaseyCarter!

[MattStephanson]

I looked at this around the new year and implemented large parts of R14. I'd like to continue working on it, but I'd appreciate a ping if anyone decides to work on it themselves.

[StephanTLavavej]

@MattStephanson Cool! I'll mark this as Investigating to reflect your progress.

[StephanTLavavej]

@MattStephanson has started a feature branch, feature/mdspan2, with his partial implementation. 😸 I'm marking this feature as available now - if anyone is interested in continuing this work, it would be a good idea to coordinate on Discord.

[vickoza]

I would like to continue @MattStephanson the work on this feature.

[StephanTLavavej]

@vickoza We're working in a multi-collaborator feature branch, feature/mdspan2, with @JMazurkiewicz regularly making changes. It would be best to join the #mdspan channel on the STL Discord to coordinate work. Thanks!

[vickoza]

How do I join the STL Discord? mdspan is a feature I would like to use

[JMazurkiewicz]

Here you go: https://discord.gg/XWanNww

[vickoza]

thank you