Re: [PATCH v8 03/10] rust: num: add `into_bool` method to `Bounded`

[Yury Norov]

On Tue, Mar 10, 2026 at 12:14:00AM +0900, Alexandre Courbot wrote:
> Single-bit numbers are typically treated as booleans. There is an
> `Into<bool>` implementation for those, but invoking it from contexts
> that lack type expectations is not always convenient.
> 
> Add an `into_bool` method as a simpler shortcut.
> 
> Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
> Reviewed-by: Gary Guo <gary@xxxxxxxxxxx>
> Reviewed-by: Daniel Almeida <daniel.almeida@xxxxxxxxxxxxx>
> Tested-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
> Acked-by: Miguel Ojeda <ojeda@xxxxxxxxxx>
> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>

Reviewed-by: Yury Norov <yury.norov@xxxxxxxxx>

> ---
>  rust/kernel/num/bounded.rs | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/rust/kernel/num/bounded.rs b/rust/kernel/num/bounded.rs
> index 2f5f13ecd3d6..d28d118abd8e 100644
> --- a/rust/kernel/num/bounded.rs
> +++ b/rust/kernel/num/bounded.rs
> @@ -1101,3 +1101,24 @@ fn from(value: bool) -> Self {
>          unsafe { Self::__new(T::from(value)) }
>      }
>  }
> +
> +impl<T> Bounded<T, 1>
> +where
> +    T: Integer + Zeroable,
> +{
> +    /// Converts this [`Bounded`] into a [`bool`].
> +    ///
> +    /// This is a shorter way of writing `bool::from(self)`.
> +    ///
> +    /// # Examples
> +    ///
> +    /// ```
> +    /// use kernel::num::Bounded;
> +    ///
> +    /// assert_eq!(Bounded::<u8, 1>::new::<0>().into_bool(), false);
> +    /// assert_eq!(Bounded::<u8, 1>::new::<1>().into_bool(), true);
> +    /// ```
> +    pub fn into_bool(self) -> bool {
> +        self.into()
> +    }
> +}
> 
> -- 
> 2.53.0