 is the variable <code class="computeroutput"><span class="identifier">i</span></code> in this case, should be acknowledged
          by the assertion <code class="computeroutput"><span class="identifier">BOOST_CHECK</span></code>
          in a particular way. In the approach above, this is done by adding a message
          to the assertion itself.
        </p>
<p>
          What if the context is more complex than that? In case the complexity of
          the context increases, the fact that the assertio