logical_not.hpp

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// SPDX-License-Identifier: BSD-2-Clause
 
#ifndef pRC_CORE_FUNCTORS_LOGICAL_NOT_H
#define pRC_CORE_FUNCTORS_LOGICAL_NOT_H
 
#include <prc/core/basic/basics.hpp>
 
namespace pRC
{
    struct LogicalNot
    {
        template<class X>
            requires requires { !declval<X>(); }
        constexpr decltype(auto) operator()(X &&a) const
        {
            return !forward<X>(a);
        }
    };
}
#endif // pRC_CORE_FUNCTORS_LOGICAL_NOT_H