title: Where ampersand "&" can be put when passing argument by reference?
body: <p>In the examples that I saw the arguments were passed by reference in the following way:</p>
  
  <pre><code>void AddOne(int &amp;y)
  </code></pre>
  
  <p>In the code that I have I see the following syntax:</p>
  
  <pre><code>void AddOne(int&amp; y)
  </code></pre>
  
  <p>I wonder if it is the same or the second case is somehow different from the first one.</p>