//
// example of using STL "vector" template class
//
// input:  none.
// output:  results of calling some functions.
//

// Oldham, Jeffrey D.
// 2000 Jan 29
// CS1321

// Modified by:
// Massingill, Berna L.
// 2001 Sep

#include <iostream>
#include <cstdlib>		// has EXIT_SUCCESS
#include <vector>		// has vector
#include <string>		// has string
using namespace std;

int main()
{
  vector<int> v;		// Creates an empty vector that can
				//   hold int's.
  vector<string> w(4);		// Creates a vector that can hold up
				//   to four strings.  We can also
				//   enlarge or shrink it as needed.

  cout << "Is the empty vector empty? ";
  if (v.empty())		// v.empty() returns a bool.
    cout << "yes.\n";
  else
    cout << "no.\n";

  cout << "The size of a vector declared with 4 elements is ";
  cout << w.size() << ".\n";	// w.size() returns number of position 
				//   in w.  Note these positions need
				//   not be filled with elements.

  w[0] = "hello";		// Store a string at vector's first position.
  cout << "This should be hello: " << w[0] << ".\n";

  v.push_back(7);		// Grow vector one larger, placing 7 
				//   in the new position.
  v.push_back(13);		// Add another element.
  cout << "This should be 13: " << v[1] << endl;
  v.pop_back();			// Shrink the vector by one position.

  return EXIT_SUCCESS;
}