https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106980
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |marxin at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Apparently clang also rejects the code:
$ clang++ pr106980.C -c -std=c++20
pr106980.C:10:27: error: requirement contains unexpanded parameter pack 'fn'
requires (N >= 1) && (requires( Fns ... fn ) { { fn.template operator
()<(size_t)N - 1>() } -> std::same_as<void>; } && ...)
^ ~~
1 error generated.