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Code Issues Releases Wiki Activity

RefCell is OK too.

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Bradlee Speice 2019-01-22 19:11:46 -05:00
parent fa5bf2d713
commit 03f72cff8e
1 changed files with 3 additions and 2 deletions
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5
_drafts/understanding-allocations-in-rust.md
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@ -518,8 +518,9 @@ guidelines are in order:
[`HashMap`](https://doc.rust-lang.org/stable/std/collections/struct.HashMap.html)
- Enums and other wrapper types will not trigger heap allocations unless
the underlying type also needs heap allocation. You can use
[`Option`](https://doc.rust-lang.org/stable/core/option/enum.Option.html) and
[`Result`](https://doc.rust-lang.org/stable/core/result/enum.Result.html)
[`Option`](https://doc.rust-lang.org/stable/core/option/enum.Option.html),
[`Result`](https://doc.rust-lang.org/stable/core/result/enum.Result.html), and
[`RefCell`](https://doc.rust-lang.org/stable/core/cell/struct.RefCell.html)
with reckless abandon.
- [Arrays](https://doc.rust-lang.org/std/primitive.array.html) are guaranteed
to be stack-allocated in all circumstances.