https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107466
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2022-11-04
Status|UNCONFIRMED |NEW
Component|c++ |libstdc++
Ever confirmed|0 |1
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
That's not the standard. That text comes from a general requirement in
[rand.req.gen] that applies to all engines and adaptors. The more specific
requirements for subtract_with_carry_engine say it uses a specialization of
linear_congruential_engine that is ill-formed. More specific requirements
overrule more general ones.
I've created a new LWG issue so this will get fixed in the standard. The best
suggestion so far is that it should use
linear_congruential_engine<uint_least32_t,...> instead of using its own
result_type.
Reassigning to component:libstdc++.
