[Bug libstdc++/47724] [C++0x] Regex string anchors cause segfault

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47724

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.02.14 00:00:37
            Summary|Regex string anchors cause  |[C++0x] Regex string
                   |segfault                    |anchors cause segfault
     Ever Confirmed|0                           |1

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-02-14 00:00:37 UTC ---
I think that code's meant to support some basic operations, so the fact it
crashes is definitely a bug.  We access an empty std::stack in
_Compiler::_M_alternative, I'll see if I can fix it.