></a><code class="literal">extents</code>
</h4></div></div></div>
<pre class="programlisting">
namespace boost {
  multi_array_base::extent_gen extents;
}
</pre>
<p>Boost.MultiArray's array classes use the
<code class="literal">extents</code> global object to specify 
array shape during their construction. 
For example,
a 3 by 3 by 3 <code class="computeroutput">multi_array</code> is constructed as follows:
</p>
<pre class="programlisting">multi_array&lt;int,3&gt; A(extents[3][3][3]);</pre>
<p>
The same arr