rustHow to pass a Rust slice as an argument?

Passing a Rust slice as an argument is done by using the &[T] syntax. This syntax indicates that a reference to a slice of type T is being passed.

Example

fn print_slice(slice: &[i32]) {
    println!("{:?}", slice);
}

fn main() {
    let arr = [1, 2, 3];
    print_slice(&arr);
}

Output example

[1, 2, 3]

Code explanation

• fn print_slice(slice: &[i32]): This is a function that takes a reference to a slice of type i32 as an argument.
• let arr = [1, 2, 3]: This creates an array of type i32 with the values 1, 2, and 3.
• print_slice(&arr): This passes a reference to the array arr to the function print_slice.

Helpful links

• Rust Documentation - Slices
• Rust Documentation - References and Borrowing

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