#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let a = [1, 2, 3];
    let sum: i32 = a.iter().sum();
    assert_eq!(sum, 6);
    let b: Vec<f32> = vec![];
    let sum: f32 = b.iter().sum();
    assert_eq!(sum, - 0.0_f32);
}