t">safe_numerics_error</code></a>
        value indicating why the cast could not be accomplished. Ranges are
        represented as a pair of values of the type <a class="link" href="checked_result.html" title="checked_result&lt;R&gt;"><code class="computeroutput">checked_result&lt;R&gt;</code></a>.</p></li>
<li class="listitem"><p><a class="link" href="checked_result.html" title="checked_result&lt;R&gt;"><code class="computeroutput">checked_result&lt;R&gt;</code></a>
        can be considered enhanced ver