lassname">std::exception</code> will always catch
  iostreams exceptions, because the old and new type both inherit from
  <code class="classname">std::exception</code>.
</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.abi.trouble"></a>Troubleshooting</h3></div></div></div><p> If you get linker errors about undefined references to symbols
  that involve types in the <code class="code">std::__cxx11</code> namespace or the tag
  <code class="code">[abi:cxx1