[Bug libstdc++/102447] std::regex incorrectly accepts invalid bracket expression

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102447

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.4                        |10.5

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Backported for 10.5 too.