title: Ignore reference function argument
body: <p>I have function with this signature (I can not edit it):</p>
  
  <pre><code>void foo(int a,int b, int&amp; c);
  </code></pre>
  
  <p>I want to call it but I do not care about the getting c. Currently I do this:</p>
  
  <pre><code>int temp;
  foo(5,4,temp);
  //temp never used again
  </code></pre>
  
  <p>My solution seems dumb. What is the standard way to ignore this argument.</p>