<p>
        If any of these macros is not redefined, the assertion will default to <code class="computeroutput"><span class="identifier">BOOST_ASSERT</span></code>. If <code class="computeroutput"><span class="identifier">BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT</span></code>
        or <code class="computeroutput"><span class="identifier">BOOST_INTRUSIVE_SAFE_HOOK_DESTRUCTOR_ASSERT</span></code>
        is defined and the programmer needs to include a file to configure that assertion,
        it can define