title: Is it possible to declare Ada range with unlimited upper bound?
body: <p>I would like to declare a speed range for a record type in Ada. The following won't work, but is there a way to make it work?</p>
  
  <pre><code>   --Speed in knots, range 0 to unlimited
     Speed : float Range 0.0 .. unlimited ;
  </code></pre>
  
  <p>I just want a zero positive value for this number...</p>