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Show relative example for Path ancestors

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Ivan Tham 2020-08-08 17:53:16 +08:00 committed by GitHub
parent d19d7e2755
commit a11c27925d
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7
library/std/src/path.rs
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@ -1992,6 +1992,13 @@ impl Path {
/// assert_eq!(ancestors.next(), Some(Path::new("/foo")));
/// assert_eq!(ancestors.next(), Some(Path::new("/")));
/// assert_eq!(ancestors.next(), None);
///
/// let mut ancestors = Path::new("../foo/bar").ancestors();
/// assert_eq!(ancestors.next(), Some(Path::new("../foo/bar")));
/// assert_eq!(ancestors.next(), Some(Path::new("../foo")));
/// assert_eq!(ancestors.next(), Some(Path::new("..")));
/// assert_eq!(ancestors.next(), Some(Path::new("")));
/// assert_eq!(ancestors.next(), None);
/// ```
///
/// [`None`]: ../../std/option/enum.Option.html#variant.None