them directly
  supports debugging for programs using libstdc++. The existing
  implementations include:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><a class="link" href="http://www.cs.sjsu.edu/faculty/horstman/safestl.html" target="_top">SafeSTL</a>:
  SafeSTL was the original debugging version of the Standard Template
  Library (STL), implemented by Cay S. Horstmann on top of the
  Hewlett-Packard STL. Though it inspired much work in this a