title: Is realloc() safe in embedded system?
body: <p>While developing a piece of software for embedded system I used <code>realloc()</code> function many times. Now I've been said that I "should not use <code>realloc()</code> in embedded" without any explanation.</p>
  
  <p>Is <code>realloc()</code> dangerous for embedded system and why?</p>