Variadic Template

by okanakyuz · 2020-03-09

In C++ templates may use to declare to get several version

1	template<typename ... Param>

In here you may find a way to declare a type called Param but not only one strict type.

You may use it with other type names to

1 2	template<typename T, typename ... Param> void Display(T a, Param ... args){}

And of course, you may create a function that calls himself recursively. But it needs its empty version too.

#include <iostream>

void Display(){

std::cout << std::endl;

}

template<typename T, typename ... Param>

void Display(T && a, Param && ... args){

std::cout << a << ":" << sizeof... (args) << "\t";

Display(std::forward<Param>(args) ...);

}

int main()

{

Display(9,2,1,3,1,2,1.1,"c");

}

forward method may be used for possible move constructors.

Sizeof… is a standard method to get the count of the nested arguments.