Ensure there's room for at least 1000 elements : vector reserve « vector « C++ Tutorial

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

#include <iostream>
#include <vector>

using namespace std;
typedef vector<int> INTVECTOR;

int main(void)
 {
   // Dynamically allocated vector begins with 0 elements.
   INTVECTOR theVector;

   theVector.push_back(42);

   // Ensure there's room for at least 1000 elements.
   theVector.reserve(1000);
   cout << endl << "After reserving storage for 1000 elements:" << endl;
   cout << "theVector's size is: " << theVector.size() << endl;
   cout << "theVector's maximum size is: " << theVector.max_size()<< endl;
   cout << "theVector's capacity is: " << theVector.capacity() << endl;

 }