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Subject: Re: Contradiction in the description of the pack expansion
From: Ville Voutilainen (ville.voutilainen_at_[hidden])
Date: 2019-08-16 10:30:44


On Fri, 16 Aug 2019 at 18:23, Brian Bi <bbi5291_at_[hidden]> wrote:
>> > There are two pack expansions here: `...xs=args` where the pattern is `xs=args`,
>> That's not a pack expansion. It's a declaration of a captured pack,
>> initialized from another pack. It does not
>> and should not use a trailing ellipsis.
> That's not what the plain text of the standard says (C++17 [temp.variadic]/4):
>> Pack expansions can occur in the following contexts: ... In a capture-list (8.1.5); the pattern is a capture.

And you're quite sure that doesn't mean something like this?:

template <class... Args> void f(Args&&... args) {
    [args...](){};
}


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