indirectly_swappable.h

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#pragma once
 
#include "di/container/iterator/iterator_swap.h"
 
namespace di::concepts {
template<typename T, typename U = T>
concept IndirectlySwappable = requires(T const a, U const b) {
    container::iterator_swap(a, a);
    container::iterator_swap(a, b);
    container::iterator_swap(b, a);
    container::iterator_swap(b, b);
};
}