Hello, GitHub Gists 2.0!

main.cpp

#include <iostream>
#include <string>
#include <list>

using namespace std;

class HelloWorld {
public:
  HelloWorld() : words() {};
  ~HelloWorld() {};
  
  void print() {
    for (list<string>::iterator i = words.begin(); i != words.end(); i++) {
      cout << *(i);
    }
    cout << endl;
  }
  
  HelloWorld& operator<<(const char* str) {
    words.push_back(string(str));
    return *this;
  }
private:
  list<string> words;
};

int main(int argc, char** argv) {
  HelloWorld world;
  world << "Hello," << " " << "GitHub" << "!";
  world.print();
}