Rust Program to Pass ArrayList as the function argument

Pass ArrayList as the function argument

Rust Programming Language

Problem

Rust program that passes an ArrayList as a function argument.

Input

// Define a function that takes a vector of integers as its argument and prints out each element

fn print_vec(vec: &Vec<i32>) {

    for x in vec {

        println!("{}", x);

    }

}

fn main() {

    // Create a vector of integers

    let vec = vec![1, 2, 3, 4, 5];

    // Call the print_vec function with the vector as its argument

    print_vec(&vec);

}{codeBox}

Output

1

2

3

4

5{codeBox}

Explanation

In this example, the print_vec function takes a vector of integers as its argument and prints out each element using a for loop. The & symbol before the vector argument indicates that we're passing a reference to the vector rather than the vector itself, which is more efficient and avoids unnecessary copying.

In the main function, we create a vector of integers and then call the print_vec function with the vector as its argument using the & symbol to pass a reference to the vector.

The print_vec function with the vector as its argument and printing out each element of the vector.