or example, a URL) to some implementation-defined
service for monitoring a stochastic process.

<pre>    double entropy() const</pre>
<strong>Returns:</strong> An entropy estimate for the random numbers
returned by operator(), in the range <code>min()</code> to
log<sub>2</sub>( <code>max()</code>+1).  A deterministic random
number generator (e.g. a pseudo-random number engine) has entropy 0.
<br>
<strong>Throws:</strong> Nothing.


<h3>Implementation Note for Linux</h3>

On the Linux operating system, <code