// Code from http://msdn.microsoft.com/en-us/library/dd293608.aspx, adapted to use Apple's blocks extension

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

int main() 
{
   // Create a vector object that contains 10 elements.
   vector<int> v;
   for (int i = 0; i < 10; ++i)  {
      v.push_back(i);
   }

   // Count the number of even numbers in the vector by 
   // using the for_each function and a lambda expression.
   __block int evenCount = 0;
   for_each(v.begin(), v.end(), ^(int n) {
      cout << n;

      if (n % 2 == 0) 
      {
         cout << " is even " << endl;

         // Increment the counter.
         evenCount++;
      }
      else 
      {
         cout << " is odd " << endl;
      }
   });

   // Print the count of even numbers to the console.
   cout << "There are " << evenCount 
        << " even numbers in the vector." << endl;
}