13. Conclusion

• C++ program is a set of:

  • variable definitions and

  • functions

• Finally, another look at Hello, world! program:

  
      #include <iostream>
      int main()
      {
          // Statement using operator notation:
          std::cout << "Hello, World!";
  
          // Statement using function call:
          operator<<( std::cout, "Hello, World!" );
  
          return 0;
      }