/////////////////////////////////////////////////////////////////////////////////
// PointersAndReferences.cpp - demonstrates basic types and references         //  
//                                                                             //
// Jim Fawcett, Summer Short Course, Su2016                                    //
/////////////////////////////////////////////////////////////////////////////////
/*
* Found in: Handouts\ShortCourse\Repository\GettingStartedExamples
*
*/

#include <string>
#include <iostream>
#include "Utilities.h"

class Hello
{
public:
  void say() { std::cout << "\n  hello world";  }
};

struct Test
{
  int i = 5;
  double d = 3.141592;
  Hello h;
  std::string s = "a string";
};

using namespace Utilities;

int main()
{
  title("Demonstrating variables, pointers, and C++ references", '=');
  putLine();

  title("using struct directly");
  Test test;
  std::cout << "\n  "
    << test.i << ", " << test.d << ", " << test.s;
  test.h.say();
  putLine();

  title("using pointer to struct");
  Test* pTest = &test;
  std::cout << "\n  "
    << pTest->i << ", " << pTest->d << ", " << pTest->s;
  pTest->h.say();
  putLine();

  title("using reference to struct");
  Test& rTest = test;
  std::cout << "\n  "
    << rTest.i << ", " << rTest.d << ", " << rTest.s;
  rTest.h.say();
  putLine();
  putLine();
}