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rustlings-exercises-completed/exercises/clippy/clippy3.rs
2023-03-24 21:18:51 +00:00

28 lines
678 B
Rust

// clippy3.rs
// Here's a couple more easy Clippy fixes, so you can see its utility.
use std::mem;
#[allow(unused_variables, unused_assignments)]
fn main() {
let my_option: Option<()> = None;
if let Some(..) = my_option {
my_option.unwrap();
}
let my_arr = &[
-1, -2, -3,
-4, -5, -6
];
println!("My array! Here it is: {:?}", my_arr);
let my_empty_vec: Vec<i32> = Vec::new();
println!("This Vec is empty, see? {:?}", my_empty_vec);
let mut value_a = 45;
let mut value_b = 66;
// Let's swap these two!
mem::swap(&mut value_a, &mut value_b);
println!("value a: {}; value b: {}", value_a, value_b);
}