///////////////////////////////////////////////////////////////
// MT2Q3.cpp - assignment for class with reference member    //
//                                                           //
// Jim Fawcett, CSE687 - OOD Midterm, Spring 2013            //
///////////////////////////////////////////////////////////////

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include "../MTutility/MTutility.h"

class X
{
public:
  X(const std::vector<std::string>& strs, std::ostream& out=std::cout) : stuff(strs), out_(out) {}
  X(const X& x) : stuff(x.stuff), out_(x.out_) {}  // this is what compiler generated cctor does
  X& operator=(const X& x)                         // compiler can't generate assignment due to reference member
  {
    if(this == &x) return *this;
    // can't assign reference member out_
    stuff = x.stuff;
    return *this;
  }
  void write() 
  {
    for(auto character : stuff)
    {
      out_ << "\n    " << character; 
    }
  }
private:
  std::ostream& out_;
  std::vector<std::string> stuff;
};

int main()
{
  Title("MT2Q3 - Assignment for class with reference member");
  std::vector<std::string> threeStooges;
  threeStooges.push_back("Larry");
  threeStooges.push_back("Moe");
  threeStooges.push_back("Curly");

  X x(threeStooges);
  x.write();
  std::cout << "\n  copying";
  X xcopy(x);
  xcopy.write();

  std::vector<std::string> threeMuskateers;
  threeMuskateers.push_back("Athos");
  threeMuskateers.push_back("Porthos");
  threeMuskateers.push_back("Aramis");
  std::ofstream fout("test.dat");
  if(fout.good())
  {
    X fx(threeMuskateers,fout);
    std::cout << "\n  writing to file";
    fx.write();
    std::cout << "\n  copying";
    X fxcopy(fx);
    fxcopy.write();
    fout.close();
    std::ifstream fin("test.dat");
    if(fin.good())
    {
      std::cout << "\n  reading from file";
      std::cout << fin.rdbuf();
    }
    std::cout << "\n  assigning";
    x = fx;  // will use x's original ostream, e.g., cout
    x.write();
  }
  std::cout << "\n\n";
  return 0;
}