https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98343

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
namespace std
{
  struct source_location
  {
    struct __impl
    {
      const char* _M_file_name;
      const char* _M_function_name;
      unsigned _M_line;
      unsigned _M_column;
    };
    const __impl* _M_impl = nullptr;
  };
}
const void *ptr = __builtin_source_location ();

is enough.

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