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Ownership speaker notes (#172)

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* ownership speaker notes

Co-authored-by: Martin Geisler <mgeisler@google.com>
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Brandon Pollack 2023-01-17 17:09:14 +09:00 committed by GitHub
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src/ownership/move-semantics.md
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@ -16,3 +16,11 @@ fn main() {
* When `s1` goes out of scope, nothing happens: it has no ownership. * When `s1` goes out of scope, nothing happens: it has no ownership.
* When `s2` goes out of scope, the string data is freed. * When `s2` goes out of scope, the string data is freed.
* There is always _exactly_ one variable binding which owns a value. * There is always _exactly_ one variable binding which owns a value.
<details>
* Mention that this is the opposite of the defaults in C++, which copies by value unless you use `std::move` (and the move constructor is defined!).
* In Rust, you clones are explicit (by using `clone`).
</details>