 class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="customiz_1_3_32_10_9_1_1_5.html#id-1_3_32_10_9_1_1_5_3_2-bb"><span class="identifier">extract</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">Ch</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span cl