boxarray

Safe way to allocate and initialize nested arrays directly on the heap in Rust.

Usage

To use boxarray in your Rust project, simply add it as a dependency in your Cargo.toml:

[dependencies]
boxarray = "1.3.0"

Then import and use it in your project:

use boxarray::boxarray;
use boxarray::boxarray_;

fn main() {
  let v = 7.0;
  let a: Box<[[[f64; 3]; 2]; 4]> = boxarray(v);
  println!("{a:?}");

  let f = |((((), i), j), k)| (i+j*k) as usize;
  let a: Box<[[[usize; 3]; 2]; 4]> = boxarray_(f);
  println!("{a:?}");
}

lib.rs:

Safe way to allocate and initialize nested arrays directly on the heap inside a Box.

Usage

In order to initialize a Boxed nested-array, simply call the boxarray function and give it the value (here v) to initialize with:

  let v = 7.0;
  let a: Box<[[[f64; 3]; 2]; 4]> = boxarray::boxarray(v);

The initialization can also be done with a function that takes the coordinates in nested tuples as arguments by using boxarray_ instead:

  let f = |((((), i), j), k)| (i+j*k) as usize;
  let a: Box<[[[usize; 3]; 2]; 4]> = boxarray::boxarray_(f);