List_av_N of function object

We have gone far and far, and now we are going back to our target list_av_N template:

[Cpp]
Template <class A1> struct list_av_1
{
Typedef typename add_value <A1 >:: type B1;
Typedef list1 <B1> type;
};
 
Template <class A1, class A2> struct list_av_2
{
Typedef typename add_value <A1 >:: type B1;
Typedef typename add_value <A2 >:: type B2;
Typedef list2 <B1, B2> type;
};
Therefore, when A1 is boost: arg <1>, B1 is boost: arg <1>.

List1 <B1> is a type. It inherits storage1 <B1> to obtain the ability to own the static member functions of A_1.

 

List_av_2 has B2 (boost: arg <2>) and a2 _ () static member functions more than list_av_1.

These capabilities are obtained during the compilation phase. This implementation method is easier to understand than Moder C ++ Design. The disadvantage is that the Code is much written.