Question

I want to implement the following:

I define a function. And when I write N ()‘s after the function, the function will be called N times.

I give an example：

#include <iostream>
using namespace std;

typedef void* (*c)();
typedef c (*b)();
typedef b (*a)();

a aaa()
{
    cout<<"Google"<<endl;

    return (a)aaa;
}

int main()
{
    aaa()()()();
    system("pause");
}

Then the output is :

Are there any other methods to implement that?

Answer 1

It’s simple using functors.

#include <iostream>

struct Function
{
   Function& operator()() {
      std::cout << "Google" << std::endl;
      return *this;
   }
};

int main()
{
   Function f;
   f()()()();
}