title: If all bits are 0, what is the value of IEEE floating point?
body: <p>If all bits are 0 (example I <code>memset</code> the floating point variable to all 0), what is the value of IEEE floating point used in gcc? It is guaranteed to be 0.0 ?</p>
  
  <p>I guess for other floating point formats result may vary. But my question is specific to IEEE floating point used with gcc.</p>