I've seen code where something like this is done:
auto [a, b, c] = some_array_ptr;
What are the rules and proper terminology for this type of assignment?
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1It's called a structured binding: https://en.cppreference.com/w/cpp/language/structured_binding – eesiraed Apr 01 '20 at 21:20
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Perfect. Thanks! – Ben Pang Apr 01 '20 at 21:28
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Actually I'm sure this question is a dupe, I mean someone _must_ have asked this before already. But I couldn't quickly find one. – einpoklum Apr 01 '20 at 21:45
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2Structured binding can work with an array, not a pointer. – Peter Apr 01 '20 at 22:16
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(Translating @BessieTheCow's comment into an answer) in C++, this is called "structured binding". Read about it at cppreference.com, and you may also be interested in this question here on StackOverflow:
Understand structured binding in C++17 by analogy
Note that not everything you might interpret as "multiple values" can actually be used in structured binding (e.g. - a pointer may point to many values but it won't work, as @Peter points out.)
einpoklum
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