On Tue, Dec 14, 2021 at 2:49 AM Magnus Fromreide via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> Hello!
>
> Nothing in the standard explains what feature the feature test macro
> __cpp_lib_integer_comparison_functions indicates is present.
>
> I think that information is rather important to make the macro useful.
>
> /MF
>

This is what SD-FeatureTest (formerly SD-6) is for. You can find it at
https://wg21.link/sd6.

Specifically,
https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations#__cpp_lib_integer_comparison_functions

Barry