/// Adds one to the number given. /// /// # Examples /// /// ``` /// let arg = 5; /// let answer = my_crate::add_one(arg); /// /// assert_eq!(6, answer); /// ``` /// /// pub fn add_one(x: i32) -> i32 { x + 1 } pub fn main() { println!("1 + 1 = {}", add_one(1)); }