vector<int> v(10);
std::generate(v.begin(), v.end(), [i=0]() mutable { return i++; });
Can anyone explain why this works?
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3For that specific case I would suggest [`std::iota`](http://en.cppreference.com/w/cpp/algorithm/iota) instead. – Some programmer dude Apr 25 '18 at 11:13
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3As for your question, please see e.g. [this lambda expression reference](http://en.cppreference.com/w/cpp/language/lambda) for details. – Some programmer dude Apr 25 '18 at 11:14
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1But you *are* declaring it. See, it's right here `[i=0]` ;) – StoryTeller - Unslander Monica Apr 25 '18 at 11:20
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Can you explain, why it shouldn't? In other words, what you expected? – Kaveh Vahedipour Apr 25 '18 at 11:33