// Example 10.11. Test program for templated array class

#include <iostream>

using namespace std;

#include <vector>

template <class T>
void dump(const vector<T>& vec); // display vector

int main()
{
   int n = 10; // vector size

   // use constructor with size and filler values
   vector<int> a(n, 7);

   // use at() method
   a.at(0) = a.at(3) = 5;
   cout << "2nd element of a is " << a[1] << endl;
   cout << "Enter 3rd element: " ;
   cin  >> a.at(2);
   cout << "Vector a: ";
   dump(a);

   // use copy constructor
   vector<int> b = a;
   cout << endl << "Results of copy constructor: ";
   dump(b);

   // use default constructor
   vector<int> c;

   // use overloaded assignment operator
   c = a;
   cout << endl << "Results of overloaded assignment operator: ";
   dump(c);

   // display size
   cout << "Capacity of a = " << a.size() << endl;

   // resize
   a.resize(15);
   cout << endl << "Vector a resized to 15:" << endl;
   dump(a);

   a.resize(5);
   cout << endl << "Vector a resized to 5: ";
   dump(a);

   return 0;
}

//
// Function to display the elements of the vector on a line
// Pre:  vec is constant call-by-reference vector of type int.
// Post: The vec is displayed.
//

template <class T>
void dump(const vector<T>& vec)
{
   for (int j = 0; j < vec.size(); ++j)
	cout << vec.at(j) << ' ';
   cout << endl;
}