title: How to concatenate two integers in C
body: <p>Stack Overflow has this question answered in many other languages, but not C.  So I thought I'd ask, since I have the same issue.</p>
  
  <p><strong>How does one concatenate two integers in C?</strong></p>
  
  <p>Example:</p>
  
  <pre><code>x = 11;
  y = 11;
  </code></pre>
  
  <p>I would like z as follows:</p>
  
  <pre><code>z = 1111;
  </code></pre>
  
  <p>Other examples attempt to do this with strings.  What is a way to do this without strings?</p>
  
  <p>I'm looking for an efficient way to do this in C because in my particular usage, this is going into a time critical part of code.</p>
  
  <p>Thanks in Advance!</p>