 the cast is returned as a variant type, <a class="link" href="checked_result.html" title="checked_result&lt;R&gt;"><code class="computeroutput">checked_result&lt;R&gt;</code></a>.
        <a class="link" href="checked_result.html" title="checked_result&lt;R&gt;"><code class="computeroutput">checked_result&lt;R&gt;</code></a>
        may hold either a value of type R or a <a class="link" href="exception.html#safe_numerics.safe_numerics_error" title="enum class safe_numerics_error"><code class="computeroutpu