struct integral_c_tag
{
    static const int value = 0;
};

template< bool C_ > struct bool_
{
    static const bool value = C_;
    typedef integral_c_tag tag;
    typedef bool_ type;
    typedef bool value_type;
    operator bool() const
    {
        return this->value;
    }
};

typedef bool_<true> true_;
typedef bool_<false> false_;

template< typename T, T N > struct integral_c;

template <class T, T val>
struct integral_constant: public integral_c<T, val>
{
    typedef integral_constant<T,val> type;
};

template<> struct integral_constant<bool,false>: false_
{
   typedef integral_constant<bool,false> type;
};

template<> struct integral_constant<bool,true>: true_
{
    typedef integral_constant<bool,true> type;
};

template< typename T > struct is_integral : integral_constant<bool,false>   
{

};

template<> struct is_integral<unsigned char> : integral_constant<bool,true>
{
    /*BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(true) \
    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(1,is_integral,(unsigned char))
    */
};

BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_integral,unsigned char const,true)
BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_integral,unsigned char volatile,true)
BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_integral,unsigned char const volatile,true)