Initialize a fixed length array in Rust

To initialize a fixed length array in Rust, we can use the length as second attribute of the array declaration in below example we are using length as 2. See output to find 2 times: Foo { a: 10, b: 10 }.

#[derive(Copy, Clone, Debug)]
struct Foo {
    a: u32,
    b: u32,
}

fn main() {
    let mut foo_array = [Foo { a: 10, b: 10 }; 2];
    println!("Array content = {:?} ", foo_array);
}

Output

Array content = [Foo { a: 10, b: 10 }, Foo { a: 10, b: 10 }]

Conclusion

In this page (written and validated by A. Gawali) you learned about Initialize a fixed length array in Rust . What's Next? If you are interested in completing Rust tutorial, we encourage you simply to start here: Rust Tutorial.

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