a freshly created property map. The
methods are not called simply &quot;begin&quot; and &quot;end&quot; since
conceptually, <tt>vector_property_map</tt> is unbounded map, and has no end
iterator. The direct access to the underlying method is not provided, since
it would decrease encapsulation and make future performance tuning dangerous.

<p><b>Acknolegements:</b> Matthias Troyer suggested adding those functions.

<hr>

<pre>
void reserve(unsigned size)
</pre>
Reserve the space for storing elements with max