[Bug libstdc++/81835] cxxabi.h has invalid link in comment.

["chrisj at rtems dot org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81835

--- Comment #3 from Chris Johns <chrisj at rtems dot org> ---
(In reply to Jonathan Wakely from comment #2)
> (In reply to Chris Johns from comment #0)
> > Tiny issue.
> > 
> > Looking over cxxabi.h I noticed a link in a comment about __cxa_demangle is
> > not valid anymore:
> > 
> >    *  See http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt12ch39.html
> >    *  for other examples of use.
> 
> I'll fix the link.

Thank you.

> > I am looking for the implementation of the demangler code we have on our
> > mebedded targets in RTEMS. A pointer to that location would be most welcomed.
> 
> https://gcc.gnu.org/onlinedocs/libstdc++/manual/ext_demangling.html is the
> new location.

I clicked on the link and that page states:

 "If you have read the [source documentation for namespace abi] then you are
aware .."

I clicked on that link and the page is titled:

 bin_search_tree_/debug_fn_imps.hpp File Reference

This does not seem to correct or point me to the demangler code. 

I have located the code in libiberty however I am unsure if this is the code in
the RTEMS targets.