[Bug libstdc++/85472] Regex match bug

[haberg-1 at telia dot com]

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

--- Comment #21 from Hans Åberg <haberg-1 at telia dot com> ---
(In reply to Tim Shen from comment #20)
> (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".

On MacOS, I can change the value, default 8192, but not to unlimited.

> The stack overflow is a known issue
> because the implementation is recursive.

I have a loop, as in Flex and Bison generated parsers.