based

0 #pragma once

1

2 #include "based/concepts/procedure/predicate.hpp"

3

4 namespace based

5 {

6

7 template<typename T, Relation<T> Rel>

8 auto complement(Rel rel)

9 {

10 return [=](const T& lhs, const T& rhs)

11 {

12 return !rel(lhs, rhs);

13 };

14 }

15

16 } // namespace based