/// # Examples
///
/// ```
- /// #![feature(result_map_or)]
/// let x: Result<_, &str> = Ok("foo");
/// assert_eq!(x.map_or(42, |v| v.len()), 3);
///
/// assert_eq!(x.map_or(42, |v| v.len()), 42);
/// ```
#[inline]
- #[unstable(feature = "result_map_or", issue = "66293")]
+ #[stable(feature = "result_map_or", since = "1.41.0")]
pub fn map_or<U, F: FnOnce(T) -> U>(self, default: U, f: F) -> U {
match self {
Ok(t) => f(t),