On 16/10/20 10:26 +0300, Ville Voutilainen via Libstdc++ wrote:
Tested on Linux-PPC64. I haven't tested this with clang yet, Jonathan, can you help with that? The previous implementation indeed made an if-constexpr branch invalid for all instantiations of that branch, this one doesn't - now we have just a dependent static_assert which is well-formed for correct visitors and ill-formed for incorrect visitors.
All I checked is that <variant> can now be included using -std=c++17, but that works with Clang. OK for trunk, thanks.
