title: How to get an array size
body: <p>I'd like to know how to get an array rows &amp; columns size. For instance it would be something like this:</p>
  
  <pre><code>int matrix[][] = { { 2, 3 , 4}, { 1, 5, 3 } }
  </code></pre>
  
  <p>The size of this one would be 2 x 3. How can I calculate this without including other libraries but stdio or stdlib?</p>