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From: "ed at catmur dot uk" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/69623] Invalid deduction of non-trailing template parameter
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Date: Tue, 15 Mar 2022 11:03:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D69623

--- Comment #8 from Ed Catmur <ed at catmur dot uk> ---
(In reply to jim x from comment #7)
> ````
> auto f(auto..., auto a, auto...) { return a; }
> ````
> IIUC, this is just disallowed since all arguments would only match the fi=
rst
> function parameter pack.

Maybe? But all 4 major compilers currently permit it (with identical behavi=
or),
so is it worth breaking existing code by disallowing it?=