lib.rs « src « add-one « add - 53hornet/learning-rust - Exercises from the Rust Book and Manning Rust

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path: root/add/add-one/src/lib.rs

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pub fn add_one(x: i32) -> i32 {
    x + 1 
}

#[cfg(test)]
mod tests {
    #[test]
    fn it_works() {
        assert_eq!(2 + 2, 4);
    }
}