It's pretty weird. IMO, the simpler case for non-expert usage does not work. But, thank you, now I know what to do.
template for (auto _ : {0}) {
auto &&[...elems] = ::std::move(tuple);
use(::std::move(elems)...);
}
The body of an expansion statement is treated as if it's part of a template (e.g. you have to put `typename` in various places). If a structured binding pack could appear outside a template, it would force the entire remainder of the current scope to be treated as a template.
Good afternoon. Why can't the structured binding pack be used outside of the template, whereas the expansion statement can. It seems to me that for tuple-like types there is no significant difference between these language features, but to use the first one, you have to use a synthetic template where there is no real one. Is this a language defect?
I'm not sure what the documents say about this. I am writing immediately after observing the error on goldbolt.
Thank you for your attention.
Artyom Kolpakov
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