title: How to use C++ getopt_long() if I have more than 26 options?
body: <p>This is a rather hypothetical question, but let's say I have 3 long parameters that begin with the same letter. </p>
  
  <pre><code>--parse or -p
  --prune or -r
  --pivot or -i
  </code></pre>
  
  <p>Eventually I'll start running out of single letters that make sense, more over, it's hard assign something meaningful in <a href="http://www.gnu.org/s/hello/manual/libc/Getopt-Long-Option-Example.html#Getopt-Long-Option-Example" rel="noreferrer">GNU getopt_long()</a> configuration.</p>
  
  <pre><code>{"parase", no_argument,       0, 'p'},
  {"prune",  no_argument,       0, 'r'},
  {"pivot",  required_argument, 0, 'i'}
  </code></pre>
  
  <p>What is the best practice in these situations?</p>