Fznamznon wrote: > I looked at this a bit and the change that increases the constexpr > restrictions is that ext_defaulted_comparison_constexpr_mismatch (which was > added in https://reviews.llvm.org/D146090) became > err_incorrect_defaulted_comparison_constexpr?
Yes, it was intentional change. And the diagnostic you're seeing is valid for C++20. Prior C++23 defaulted function that invokes non-constexpr function under the hood cannot be marked constexpr. Since relaxing that was made in https://reviews.llvm.org/D146090 is a part of P2448R2, but other parts implemented by this patch are C++23-only due to the problems I described in https://github.com/llvm/llvm-project/pull/77753#issuecomment-1979028701 , I've made all parts of P2448R2 consistent. I would suggest opening an issue here on GitHub to discuss whether we would like to make the feature inconsistent. https://github.com/llvm/llvm-project/pull/77753 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
