erialization/extended_type_info_no_rtti.hpp" 
target="extended_type_info_rtti_hpp">extended_type_info_no_rtti.hpp</a>.
<p>
By invoking the macro:
<pre><code>
BOOST_CLASS_TYPE_INFO(
    my_class, 
    extended_type_info_no_rtti&lt;my_class&gt;
)
</code></pre>
we can assign the type information implementation to each class on a case by
case basis.  There is no requirement that all classes in a program use the same 
implementation of <code style="white-space: normal">extended_type_info</code>.  This supports t