terator</span><span class="special">,</span> <span class="identifier">last</span> <span class="identifier">iterator</span> <span class="special">)</span>
</pre>
<p>
          These algorithms need a <span class="bold"><strong>C++11 compliant compiler</strong></span>,
          but don't need any other code or library. With older compilers correct
          operation isn't guaranteed.
        </p>
<p>
          If the number of threads is unspecified, use the result of std::thread::hardware_concurrency()
   