/div><p>
    </p><p>This section provides an overall view of the design of the
  libstdc++ debug mode and details the relationship between design
  decisions and the stated design goals.</p><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="debug_mode.design.methods.wrappers"></a>The Wrapper Model</h4></div></div></div><p>The libstdc++ debug mode uses a wrapper model where the
  debugging versions of library components (e.g., iterators and
  containers) form a layer on top of the