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

[redi at gcc dot gnu.org via Gcc-bugs]

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

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #2)
> Without looking at the code, we probably just need to check if the type has
> a usable operator<=>.
> 
> We check it out had


Sorry, phone typos. 

"We check if it has..."

> a usable operator< which worked fine in C++17, but in
> C++20 x<y can work without having any operator<