https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117472
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jason at gcc dot gnu.org
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
MSVC also doesn't implement the stated C++23 behavior, though EDG does.
Given how widely unsupported this has been, I probably wouldn't bother
implementing it at this point, and just treat this as a pack expansion like
Clang.