title: Convert char with hex value to String
body: <p>If I have a character like the following:</p>
  
  <pre><code>wchar_t c = '\x0A'
  </code></pre>
  
  <p>What's an easy way to convert it so that it becomes something like:</p>
  
  <pre><code>wchar_t dst[] ==&gt; "0A"
  </code></pre>
  
  <p>Basically, the hex value of c becomes a string value.</p>