Demonstration of size() and capacity() : vector size « vector « C++ Tutorial

1. C++ Tutorial
2. vector
3. vector size

#include <iostream>
#include <vector>

int main ()
{
    using namespace std;

    // Instantiate a vector object that holds 5 integers of default value
    vector <int> v (5);

    cout << "Size: " << v.size ();
    cout << ", Capacity: " <<  v.capacity () << endl;

    // Inserting a 6th element in to the vector
    v.push_back (666);

    cout << "Size: " << v.size ();
    cout << ", Capacity: " <<  v.capacity () << endl;

    // Inserting another element
    v.push_back (777);

    cout << "After inserting yet another element... " << endl;
    cout << "Size: " << v.size ();
    cout << ", Capacity: " <<  v.capacity () << endl;

    return 0;
}