[Bug libstdc++/85472] Regex match bug

[timshen at gcc dot gnu.org]

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

--- Comment #20 from Tim Shen <timshen at gcc dot gnu.org> ---
(In reply to Hans Åberg from comment #18)
> (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.

On Linux I set "ulimit -s unlimited". The stack overflow is a known issue
because the implementation is recursive.