[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 --- Comment #7 from Desmond Gold --- Here's an updated version of the implementation with following changes: + followed coding style of GNU (maybe not all) + added initial implementation of std::submdspan facilities (without constraints and preconditions yet) + tweaked some of the problems in previous implementation https://godbolt.org/z/Mxs1YP8n7 summary + implemented c++23 + implemented c++26 std::submdspan facilities in + added c++23 feature (concepts only): '__tuple_like' and '__pair_like' to be used by '__mdspan::__index_pair_like' + added alias template '_Nth_type_t' which would supposedly be placed inside + still no documentations, incomplete preconditions and constraints, and incomplete tests
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 --- Comment #6 from Jonathan Wakely --- OK that's great, thanks for clarifying. (I haven't looked at the impl on godbolt yet, sorry)
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 --- Comment #5 from Desmond Gold --- when I mentioned being "inspired by," I was referring to drawing guidance from existing reference implementations like libc++, STL, and Kokkos for the implementation in libstdc++. Specifically, for how they implement the preconditions and layout_stride. I apologize for not explicitly defining what I meant by "inspiration" earlier. However, it's important to note that my work primarily adheres to the standards' definitions rather than directly replicating code. This approach ensures alignment with the intended functionality while respecting authorship, copyright, and licensing concerns. >From the link you've checked out, you'll notice the implementation is still a work in progress. It's incomplete and would greatly benefit from additional feedback to incorporate the missing elements :>
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 --- Comment #4 from Jonathan Wakely --- What does "inspired by" mean? We need to be careful of authorship, copyright ownership, and licensing.
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 Desmond Gold changed: What|Removed |Added CC||cooky.ykooc922 at gmail dot com --- Comment #3 from Desmond Gold --- I've implemented c++23 features for in libstdc++ (hopefully) which is inspired by other reference implementations (libc++, STL, Kokkos). https://godbolt.org/z/Gc8vvjaT9 however: + no optimizations yet (this includes SBO) + no 'stronger' and complete tests yet + no documentation yet + some assertions have no messages
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 --- Comment #2 from gnzlbg --- Update: the reference implementation is now merged into libc++ and will release with LLVM 17.
[Bug libstdc++/107761] Implement C++23
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed||2022-12-08 --- Comment #1 from Andrew Pinski --- .
