doc_feature_examples/
lib.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
#![cfg_attr(docsrs, feature(doc_cfg))]
pub fn add(left: u64, right: u64) -> u64 {
    left + right
}

#[cfg(feature = "foo")]
#[cfg_attr(docsrs, doc(cfg(feature = "foo")))]
pub fn foo() -> u64 {
    1 + 1
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn it_works() {
        let result = add(2, 2);
        assert_eq!(result, 4);
    }
}