1//! # Cargo IO 2//! A `test crate` with very little purpose. 3 4/// Adds two numbers together 5/// 6/// # Examples 7/// 8/// ``` 9/// let answer = cargo_io::add(1,2); 10/// assert_eq!(3, answer); 11pub fn add(a: i32, b: i32) -> i32 { 12 a + b 13}