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<a name="boost_typetraits.reference.is_base_of"></a><a class="link" href="is_base_of.html" title="is_base_of">is_base_of</a>
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<p>
This template will detect non-public base classes, and ambiguous base classes.
+ It also detects indirect base classes - which is to say <a class="link" href="is_base_of.html" title="is_base_of">is_base_of</a><B,
+ D> inherits from <a class="link" href="integral_constant.html" title="integral_constant">true_type</a>
+ if B is located anywhere in the inheritance tree of D.
</p>
<p>
Note that <code class="computeroutput"><span class="identifier">is_base_of</span><span class="special"><</span><span class="identifier">X</span><span class="special">,</span><span class="identifier">X</span><span class="special">></span></code> will inherit from <a class="link" href="integral_constant.html" title="integral_constant">true_type</a>