/* Mem3Test.cpp  -- Overloading versus Default Arguments */

#include "Mem3.h"
#include "Mem3.cpp"
#include <cstring>
#include <iostream>

using namespace std;


class MyString {
  Mem *buf;

public:
  MyString();
  MyString(char *str);
  ~MyString();
  void concat(char *str);
  void print(ostream& os);
};



MyString::MyString() {
  buf = 0;
}


MyString::MyString(char *str) {
  buf = new Mem(strlen(str) + 1);
  strcpy((char *)buf->pointer(), str);
}


void MyString::concat(char *str) {
  if(!buf) {
    buf = new Mem;
  }
  strcat((char *)buf->pointer(buf->msize() + strlen(str) + 1), str);
}


void MyString::print(ostream& os) {
  if(!buf) return;
  os << buf->pointer() << endl;
}


MyString::~MyString() {
  delete buf;
}



int main() {
  cout << "Mem3Test" << endl;
  cout << "========" << endl;

  MyString s("My test string");
  s.print(cout);
  s.concat(" some additional stuff");
  s.print(cout);

  MyString s2;
  s2.concat("Using no-arg constructor");
  s2.print(cout);
}