sortable.h

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#pragma once
 
#include "di/container/concepts/indirect_strict_weak_order.h"
#include "di/container/concepts/permutable.h"
#include "di/container/meta/projected.h"
#include "di/function/identity.h"
#include "di/function/less.h"
 
namespace di::concepts {
template<typename Iter, typename Comp = function::Less, typename Proj = function::Identity>
concept Sortable = Permutable<Iter> && IndirectStrictWeakOrder<Comp, meta::Projected<Iter, Proj>>;
}