[Bug target/94087] std::random_device often fails when used from multiple threads

[coryan+gccbugzilla at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94087

Carlos O'Ryan <coryan+gccbugzilla at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |---
             Status|RESOLVED                    |UNCONFIRMED

--- Comment #7 from Carlos O'Ryan <coryan+gccbugzilla at google dot com> ---
(In reply to Jonathan Wakely from comment #6)
> (In reply to Carlos O'Ryan from comment #0)
> > Creating and using a `std::random_device` object fails when used from
> > multiple threads.
> 
> That's undefined behaviour. Calling non-const member functions on a single
> object from multiple threads is always undefined unless specified otherwise.

Each thread is creating its own `std::random_device` so I do not believe this
is applicable.