"computeroutput"><span class="keyword">double</span></code> and <code class="computeroutput"><span class="keyword">long</span>
        <span class="keyword">double</span></code>. An optional + sign can be
        used with positive numbers (controlled by ios manipulator <code class="computeroutput"><span class="identifier">showpos</span></code>).
        The function <code class="computeroutput"><span class="identifier">printf</span></code> and similar
        C++ functions use standard formatting flags to 