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From: "ssbssa at sourceware dot org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/17272] DW_TAG_GNU_template_parameter_pack
Date: Sun, 10 Dec 2023 17:01:51 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D17272

--- Comment #17 from Hannes Domani <ssbssa at sourceware dot org> ---
(In reply to David Blaikie from comment #16)
> For types you can't have more than one pack, I think:
> $ clang++-tot -std=3Dc++2a pack_type.cpp=20
> pack_type.cpp:1:22: error: template parameter pack must be the last templ=
ate
> parameter
>     1 | template<typename... T1s, typename... T2s>
>       |                      ^
> 1 error generated.
>=20
> But you can have multiple packs in a function template - and I think it'd=
 be
> good to represent it correctly - since there can be two functions, for
> instance, with the same parameters but packed differently (eg:
> `template<typename... T1s, typename ... T2s> void f1();` you could have
> `f1<int>` where the int is in the first pack (and the second pack is empt=
y)
> or the other way around, and those are distinct overloads)

Could you share an example where the 2nd pack is not empty, because I could=
 not
figure out how to do it?

--=20
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