[Bug libstdc++/89591] How can thread.joinable() reliably work if the pthread_t id is not initialized?

[bique.alexandre at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89591

--- Comment #2 from Alexandre Bique <bique.alexandre at gmail dot com> ---
> It's initialized here:
> 
>> id() noexcept : _M_thread() { }

I did not know that it would initialize it to 0.

In that case let's hope that pthread_t == "value-initialized" will never
happen.

Thank you for answering my question, and I think we can close the bug.

Regards,
Alex