Rust Tutorials

How to Copy a Vector in Rust

◀ Previous Next ▶

How to Copy a Vector in Rust ?

Answer

In Rust, you can copy a vector by cloning it or by using a slice.

✐ Examples

1 Copy a Vector using Clone

In this example,

We create a vector named original_vector with some values.
We clone original_vector to create an independent copy named copied_vector.
Any modifications made to original_vector will not affect copied_vector.

Rust Program

fn main() {
    let original_vector = vec![1, 2, 3, 4, 5];
    let copied_vector = original_vector.clone();
    println!("Original vector: {:?}", original_vector);
    println!("Copied vector: {:?}", copied_vector);
}

Output

Original vector: [1, 2, 3, 4, 5]
Copied vector: [1, 2, 3, 4, 5]

2 Copy a Vector using Slicing

In this example,

We create a vector named original_vector with some values.
We use slicing (&) to create a reference to original_vector named copied_vector.
Any modifications made to original_vector will not affect copied_vector.

Rust Program

fn main() {
    let original_vector = vec![1, 2, 3, 4, 5];
    let copied_vector = &original_vector;
    println!("Original vector: {:?}", original_vector);
    println!("Copied vector: {:?}", copied_vector);
}

Output

Original vector: [1, 2, 3, 4, 5]
Copied vector: [1, 2, 3, 4, 5]

Summary

In this tutorial, we learned How to Copy a Vector in Rust language with well detailed examples.

◀ Previous Next ▶

Rust Tutorials

Rust How-Tos

How to Copy a Vector in Rust

How to Copy a Vector in Rust ?

Answer

✐ Examples

1 Copy a Vector using Clone

Rust Program

Output

2 Copy a Vector using Slicing

Rust Program

Output

Summary

More Rust Vectors Tutorials