#include <iostream>
#include <string>
using namespace std;

int main() {
  string hw;
  hw.reserve(100);
  cout << "My string lenght is :" << hw.size() << endl;
  cout << "My string is empty? " << hw.empty() << endl;
  cout << "My string capacity is :" << hw.capacity() << endl;
  hw ="Hello world";
  cout << hw << endl;
  cout << "My string lenght is :" << hw.size() << endl;
  cout << "My string is empty? " << hw.empty() << endl;
  cout << "My string capacity is :" << hw.capacity() << endl;
  hw+="!";
  cout << hw << endl;

  // string e' un container!
  for (string::const_iterator c=hw.begin(); c!=hw.end(); ++c) {
    cout << *c << endl;
  }

  cout << "My string lenght is :" << hw.size() << endl;
  cout << "My string capacity is :" << hw.capacity() << endl;
  
  cout << "String [4] " << hw[4] << endl;

  hw.append("Oggi e' martedi'");
  cout << hw << endl;

  hw.append(hw.begin()+5, hw.begin()+10);
  cout << hw << endl;

  hw.push_back(*(hw.begin()+8));
  cout << hw << endl;

  hw.erase(12, 15); // cancella da 12, 15 caratteri
  cout << hw << endl;

  hw.erase(12); // cancella da 12 alla fine
  cout << hw << endl;

  hw.replace(0,5,"ciao"); // sostituisce 4 caratteri a partire da 6 con "ciao"
  cout << hw << endl;

  string hate("fuck you, world!");
  cout << hate << endl;

  hw.swap(hate);
  cout << "hw " << hw << endl;
  cout << "hate " << hate << endl;

  cout << "Find '!' " << hw.find("!") << endl;
  cout << "Find '!' " << hw[hw.find("!")] << endl;

  cout << "hw vs hate " << (hw<hate) << endl;

  cin >> hw;
  cout << hw;
  return 0;

}