title: C-Language: How to get number from string via sscanf?
body: <p>Recently I have need to extract a number from a string, but on really old C with means functions like <code>strtok</code> are not supported. I would prefer <code>sscanf</code>, but i can't understand it.
  Note that the integer is in random place (user-defined).</p>
  
  <p>In general thats what i want to happan as an example:</p>
  
  <pre><code>Input:
  char * string = "He is 16 years old.";
  
  Output:
  16
  </code></pre>