[Bug libstdc++/69877] Problem with std::basic_ios::setstate()

[lcarreon at bigpond dot net.au]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69877

--- Comment #1 from Leo Carreon <lcarreon at bigpond dot net.au> ---
In addition, if I comment out the line:

vStream.exceptions(std::ios_base::badbit);

The executable does not core dump.