append

#pragma once

#include "typelist.h"

template<typename TList, typename NewType>
struct Append;

template <>
struct Append<NullType,NullType>{
    typedef NullType NewTypeList;
};

template<typename T>
struct Append<NullType, T>{
    typedef TypeList<T,NullType> NewTypeList;
};

template<typename Head, typename Tail>
struct Append<TypeList<Head,Tail>, NullType>{
    typedef TypeList<Head, Tail> NewTypeList;
};

template<typename Head, typename Tail, typename NewType>
struct Append<TypeList<Head, Tail>, NewType>{
    typedef TypeList<Head,typename Append<Tail,NewType>::NewTypeList> NewTypeList;
};