#array #concat #split

no-std array-concat

Macros for concatenating const arrays

12 releases

0.5.5 Mar 8, 2025
0.5.3 Jun 1, 2024
0.5.2 Jan 27, 2023
0.5.1 Jun 3, 2021

#140 in Data structures

Download history 2918/week @ 2024-12-04 2406/week @ 2024-12-11 2045/week @ 2024-12-18 1315/week @ 2024-12-25 1861/week @ 2025-01-01 3342/week @ 2025-01-08 3320/week @ 2025-01-15 3471/week @ 2025-01-22 3279/week @ 2025-01-29 5473/week @ 2025-02-05 3383/week @ 2025-02-12 2588/week @ 2025-02-19 4397/week @ 2025-02-26 3501/week @ 2025-03-05 3400/week @ 2025-03-12 3977/week @ 2025-03-19

15,786 downloads per month
Used in 18 crates (10 directly)

MIT license

12KB
202 lines

Current Crates.io Version docs-rs

array-concat

Macros for concatenating and splitting arrays.

To add to your Cargo.toml:

array-concat = "0.5.5"

Example

use array_concat::*;

const A: [u32; 3] = [1, 2, 3];
const B: [u32; 2] = [4, 5];
const C: [u32; concat_arrays_size!(A, B)] = concat_arrays!(A, B);

// Non-Copy struct
#[derive(Debug, PartialEq)]
struct S(bool);
const D: [S; 1] = [S(true)];
const E: [S; 1] = [S(false)];
const F: [S; concat_arrays_size!(D, E)] = concat_arrays!(D, E);

fn main() {
    let c = concat_arrays!(A, B);
    assert_eq!([1, 2, 3, 4, 5], C);
    assert_eq!([1, 2, 3, 4, 5], c);
    assert_eq!([S(true), S(false)], F);

    // Split the array into three parts with lengths: 1, 3, and 1
    assert_eq!(([1], [2, 3, 4], [5]), split_array!(c, 1, 3, 1));

    let a = [1, 2, 3];
    let b = [4, 5];
    let c = concat_arrays!(a, b); // Size is inferred by the assert below
    assert_eq!([1, 2, 3, 4, 5], c);
}

No runtime deps

Features