="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="number">3.0</span><span class="special">);</span>

<span class="identifier">test_generator_attr</span><span class="special">(</span><span class="string">"[1.0][2.0][3.0]"</span><span class="special">,</span> <span class="identifier">repeat</span><span class="special">[</span><span class="char">'['</span> <span class="special">&lt;&lt;</span> <span class="identifier">double_</span> <span class="special">&lt