[Bug libstdc++/46659] std::list iterator debugging (_GLIBCXX_DEBUG) is much slower than stlport's one.

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46659

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-11-25 
15:45:58 UTC ---
the changes in http://gcc.gnu.org/ml/libstdc++/2010-11/msg00131.html might help