title: Default value of function parameter
body: <p><strong>1.</strong></p>
  
  <pre><code>int Add (int a, int b = 3);
  int Add (int a, int b)
  {
  
  }
  </code></pre>
  
  <p><strong>2.</strong></p>
  
  <pre><code>int Add (int a, int b);
  int Add (int a, int b = 3)
  {
  
  }
  </code></pre>
  
  <p>Both work; which is the standard way and <strong>why</strong>?</p>