linux-kernel - Re: [PATCH v3 08/13] rust: init: Add functions to create array initializers

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Date:   Sat, 5 Aug 2023 14:11:51 -0300
From:   Martin Rodriguez Reboredo <yakoyoku@...il.com>
To:     Benno Lossin <benno.lossin@...ton.me>,
        Miguel Ojeda <ojeda@...nel.org>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Alex Gaynor <alex.gaynor@...il.com>
Cc:     Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Alice Ryhl <aliceryhl@...gle.com>,
        Andreas Hindborg <nmi@...aspace.dk>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        Asahi Lina <lina@...hilina.net>
Subject: Re: [PATCH v3 08/13] rust: init: Add functions to create array
 initializers

On 7/29/23 06:10, Benno Lossin wrote:
> Add two functions `pin_init_array_from_fn` and `init_array_from_fn` that
> take a function that generates initializers for `T` from usize, the added
> functions then return an initializer for `[T; N]` where every element is
> initialized by an element returned from the generator function.
> 
> Suggested-by: Asahi Lina <lina@...hilina.net>
> Reviewed-by: Björn Roy Baron <bjorn3_gh@...tonmail.com>
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
> Signed-off-by: Benno Lossin <benno.lossin@...ton.me>
> ---
> [...]
> +/// Initializes an array by initializing each element via the provided initializer.
> +///
> +/// # Examples
> +///
> +/// ```rust
> +/// use kernel::{error::Error, init::init_array_from_fn};
> +/// let array: Box<[usize; 1_000_000_000]>= Box::init::<Error>(init_array_from_fn(|i| i)).unwrap();
> +/// assert_eq!(array.len(), 1_000_000_000);
> +/// ```

Ahh, nice!

> [...]
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@...il.com>