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Remove reference to const-fn feature of cortex-m. Closes #242. #243

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Merged
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May 25, 2020
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Remove reference to const-fn feature of cortex-m. Closes #242. #243

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17 changes: 0 additions & 17 deletions src/concurrency/index.md
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Expand Up @@ -552,23 +552,6 @@ fn timer() {

```

> **NOTE**
>
> At the moment, the `cortex-m` crate hides const versions of some functions
> (including `Mutex::new()`) behind the `const-fn` feature. So you need to add
> the `const-fn` feature as a dependency for cortex-m in the Cargo.toml to make
> the above examples work:
>
> ``` toml
> [dependencies.cortex-m]
> version="0.6.0"
> features=["const-fn"]
> ```
> Meanwhile, `const-fn` has been working on stable Rust for some time now.
> So this additional switch in Cargo.toml will not be needed as soon as
> it is enabled in `cortex-m` by default.
>

Whew! This is safe, but it is also a little unwieldy. Is there anything else
we can do?

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