Array Primitives

Fixed-size arrays [T; N]

Creating Arrays

fn main() {
    // Literal syntax
    let arr: [i32; 5] = [1, 2, 3, 4, 5];
    println!("Literal: {:?}", arr);

    // Repeat syntax
    let zeros: [i32; 10] = [0; 10];
    println!("Zeros: {:?}", zeros);

    // Type inference
    let inferred = [1, 2, 3];  // [i32; 3]
    println!("Inferred: {:?}", inferred);

    // From function
    let arr: [i32; 5] = std::array::from_fn(|i| (i * 2) as i32);
    println!("From fn: {:?}", arr);

    // Empty array
    let empty: [i32; 0] = [];
    println!("Empty: {:?}, len: {}", empty, empty.len());

    // Nested arrays
    let matrix: [[i32; 3]; 2] = [
        [1, 2, 3],
        [4, 5, 6],
    ];
    println!("Matrix: {:?}", matrix);

    // Const size
    const SIZE: usize = 5;
    let sized: [i32; SIZE] = [0; SIZE];
    println!("Const sized: {:?}", sized);
}