El mié., 5 feb. 2020 06:02, Михаил Найденов <mihailnajdenov@gmail.com> escribió:
Note that, the extensions points are being completely revamped now. 

and others.

Interesting,  how would you use them for this case?

On Tue, Feb 4, 2020 at 10:50 PM Daniel Gutson via Std-Proposals <std-proposals@lists.isocpp.org> wrote:
What people think about this?

struct S
    std::swap(S&, S&) = delete;

In this example, this would be useful to prevent std::sort for example (even if we add operator< ).

Who’s got the sweetest disposition?
One guess, that’s who?
Who’d never, ever start an argument?
Who never shows a bit of temperament?
Who's never wrong but always right?
Who'd never dream of starting a fight?
Who get stuck with all the bad luck?
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