src/doc/book/listings/ch14-more-about-cargo/no-listing-03-workspace-with-external-dependency/add/adder/src/main.rs


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use add_one;

fn main() {
    let num = 10;
    println!(
        "Hello, world! {} plus one is {}!",
        num,
        add_one::add_one(num)
    );
}