is_fundamental.hpp

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#ifndef BSL_IS_FUNDAMENTAL_HPP
#define BSL_IS_FUNDAMENTAL_HPP

#include "bool_constant.hpp"
#include "is_arithmetic.hpp"
#include "is_void.hpp"
#include "is_null_pointer.hpp"

namespace bsl
{
    namespace details
    {
        template<typename T>
        [[nodiscard]] constexpr bool
        check_is_fundamental() noexcept
        {
            if (is_arithmetic<T>::value) {
                return true;
            }

            if (is_void<T>::value) {
                return true;
            }

            return is_null_pointer<T>::value;
        }
    }

    template<typename T>
    class is_fundamental final : public bool_constant<details::check_is_fundamental<T>()>
    {};
}

#endif