[Bug libstdc++/63497] std::regex can't handle [^class] correctly and cause runtime crash

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63497

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
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                 CC|moophy at foxmail dot com          |
          Component|c++                         |libstdc++

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Tim, please either apply to 4_9-branch too (ask Jon?), or just close the bug as
fixed for 5.0.