title: How to convert size_t to int in C?
body: <p>Is it possible to safely convert a variable with type <code>size_t</code> to type <code>int</code> in C99?</p>
  <p>I appreciate that <code>size_t</code> in unsigned, but in the case where we need an <code>int</code> representation, what can we do?</p>