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Mutable statics are generally a bad idea.

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Andrew Walbran 2023-01-17 16:21:02 +00:00
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src/unsafe/mutable-static-variables.md
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@ -26,3 +26,10 @@ fn main() {
unsafe { println!("COUNTER: {}", COUNTER); } // Potential data race! unsafe { println!("COUNTER: {}", COUNTER); } // Potential data race!
} }
``` ```
<details>
Using a mutable static is generally a bad idea, but there are some cases where it might make sense
in low-level `no_std` code, such as implementing a heap allocator or working with some C APIs.
</details>