#pragma once
#include <type_traits>

namespace bits
{
    template <typename _Ty>
    inline void Set(_Ty &old, _Ty flag)
    {
        static_assert(std::is_arithmetic<_Ty>::value, "_Ty must be an arithmetic type");
        old |= flag;
    }

    template <typename _Ty>
    inline void Unset(_Ty &old, _Ty flag)
    {
        static_assert(std::is_arithmetic<_Ty>::value, "_Ty must be an arithmetic type");
        old &= ~flag;
    }

    template <typename _Ty>
    inline bool Has(_Ty old, _Ty flag)
    {
        static_assert(std::is_arithmetic<_Ty>::value, "_Ty must be an arithmetic type");
        return !!(old & flag);
    }
}