/span>

    <span class="keyword">bool</span> <span class="identifier">r</span> <span class="special">=</span> <span class="identifier">generate_delimited</span><span class="special">(</span>
        <span class="identifier">sink</span><span class="special">,</span>                           <span class="comment">// destination: output iterator</span>
        <span class="identifier">double_</span> <span class="special">&lt;&lt;</span> <span class="special">*(</span><span class="char">','</span> <span class