template <unsigned size>
struct complement
{
    template <class Number>
    struct traits
    {
     private:
        typedef complement_traits_aux<Number, size - 1> prev;
     public:
        static const Number max = Number(Number(prev::max) << 8) + Number(255);
        static const Number min = Number(Number(prev::min) << 8);
    };
};


int main()
{
    const char max = complement<sizeof(char)>::template traits<char>::max

    return 0;
}