title: How do I check if a zero is positive or negative?
body: <p>Is it possible to check if a <code>float</code> is a positive zero (0.0) or a negative zero (-0.0)?</p>
  
  <p>I've converted the <code>float</code> to a <code>String</code> and checked if the first <code>char</code> is a <code>'-'</code>, but are there any other ways?</p>