s, boolean values and finite floating-point
        numbers is delegated to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">num_get</span></code>.
      </p>
<p>
        When the facet parses a string that represents <code class="computeroutput"><span class="identifier">infinity</span></code>
        on a platform that lacks infinity, then the fail bit of the stream is set.
      </p>
<p>
        When the facet parses a string that repr