Practice - 010

A program to print the size of a variable

use std::mem;

fn main() {
    practice10()
}

fn practice10() {
    let a = 5;
    println!("a is {} bytes", mem::size_of_val(&a));

    let b: [u8; 13] = [0; 13];
    println!("b is {} bytes", mem::size_of_val(&b));
}

Result

a is 4 bytes
b is 13 bytes