[Bug libstdc++/114153] std::less<> prefers operator const void*() over operator<=>() in C++20 mode

[marc.mutz at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114153

--- Comment #1 from Marc Mutz <marc.mutz at hotmail dot com> ---
It's only the C++14 "diamond"/is_transparent version of std::less/greater_equal
that is affected. If you replace the return from main with greater_equal<S>{},
then it calls op<=>, too:

// https://godbolt.org/z/cnjssh3ss
    return std::greater_equal<S>{}(arr[0], arr[1]) ? 0 : 1;
    //                        ^ added