[Bug libstdc++/85472] Regex match bug

[haberg-1 at telia dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85472

--- Comment #18 from Hans Åberg <haberg-1 at telia dot com> ---
(In reply to Tim Shen from comment #14)
> I have a C++ test case for this:

I get segmentation fault on the regex_match line with g++ 7.3.0.