r</span><span class="special">(</span><span class="string">"xyz1.23"</span><span class="special">,</span> <span class="identifier">as_symbol</span><span class="special">[*</span><span class="identifier">char_</span><span class="special">]</span> <span class="special">&lt;&lt;</span> <span class="identifier">double_</span><span class="special">,</span> <span class="identifier">ut</span><span class="special">);</span>
<span class="identifier">test_generator_attr</span><span class="special">(</span><span class