). Only a minority of rather old compilers
        do not support this. Also known to be broken with the Borland/Codegear compilers.
      </p>
<p>
        <span class="bold"><strong>C++ Standard Reference:</strong></span> 12.5.
      </p>
<p>
        <span class="bold"><strong>Header:</strong></span> <code class="computeroutput"> <span class="preprocessor">#include</span>
        <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">typ