[Bug libstdc++/105081] Make std::random_device throw std::system_error

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105081

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-01-18
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We should add an overload of __throw_system_error that takes a const char*
because otherwise making this change would make the exception less informative.
Currently the std::runtime_error has a useful what() message:

      std::__throw_runtime_error(
          __N("random_device::random_device(const std::string&):"
              " unsupported token"));