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Fix example

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Dolpheyn 2020-05-05 09:50:59 +08:00
parent 73f07a47b8
commit 2badd41d04
1 changed files with 1 additions and 1 deletions
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2
src/libcore/option.rs
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@ -1387,7 +1387,7 @@ impl<'a, T> From<&'a Option<T>> for Option<&'a T> {
/// ```
/// let s: Option<String> = Some(String::from("Hello, Rustaceans!"));
/// let o: Option<usize> = Option::from(&s).map(|ss: &String| ss.len());
/// println!("Can still print s: {}", s);
/// println!("Can still print s: {:?}", s);
/// assert_eq!(o, Some(18));
/// ```
fn from(o: &'a Option<T>) -> Option<&'a T> {