title: Python struct.unpack equivalent in C
body: <p>What I have in python is a </p>
  
  <blockquote>
    <p>string lenght = 4</p>
  </blockquote>
  
  <p>, that I can unpack to get some values.</p>
  
  <p><strong>Is there an equivalent of this function on python, in C?</strong></p>