[Bug libstdc++/64584] basic_regex::assign breaks *this if it throws regex_error

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64584

Tim Shen <timshen at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |timshen at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #3 from Tim Shen <timshen at gcc dot gnu.org> ---
Resolved.