On Wed, Sep 17, 2025 at 08:19:39AM +0100, Michael Buch via Dwarf-discuss wrote:
> Since then two more kinds of packs have been added to the language:
> 3. lambda capture packs (C++20)
> 4. structured binding packs (C++26)
I've mentioned structured binding packs and they were agreed to be handled
in a later proposal I think. I think lambda capture packs weren't mentioned
so far.
> # Structured Binding Packs
>
> Here is an example of such pack:
> ```
> struct C { int x = 1, y = 2, z = 3; };
>
> void foo() {
> auto [d, ...e] = C();
> }
This is not a valid structured binding pack, it needs to be used in a
template.
So say
```
struct C { int x = 1, y = 2, z = 3; };
template<int N>
void foo() {
auto [d, ...e] = C();
}
```
would be a valid testcase.
Jakub
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