namespace toys
{
    class CJack {};
    class CBox
    {
        public:
            const CJack &GetJackInBox() const
            {
                return Jack;
            }
    private:
        CJack Jack;
    };
}

const CJack & toys::CBox::GetJackInBox() const
{
    return Jack;
}

const toys::CJack ..