On Wed, Dec 17, 2025 at 07:50:15PM +0000, Jonathan Wakely wrote: > + __rand_uint128(const __rand_uint128&) = default; > + __rand_uint128& operator=(const __rand_uint128&) = default; You could use type instead of __rand_uint128 in these arguments too. Otherwise LGTM, but what do I know about C++ ;) Jakub