ss</span></code>
        that wraps an <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream_iterator</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span></code>,
        and is slightly more efficient than the default <code class="computeroutput"><span class="identifier">multi_pass</span></code>
        (as generated by the <code class="computeroutput"><span class="identifier">make