diff options
| -rw-r--r-- | src/libcore/iter/mod.rs | 4 | ||||
| -rw-r--r-- | src/libcore/iter/sources.rs | 11 |
2 files changed, 8 insertions, 7 deletions
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs index 4e1dc108cc9..204c36a7571 100644 --- a/src/libcore/iter/mod.rs +++ b/src/libcore/iter/mod.rs @@ -327,7 +327,9 @@ pub use self::sources::{Once, once}; #[unstable(feature = "iter_once_with", issue = "57581")] pub use self::sources::{OnceWith, once_with}; #[unstable(feature = "iter_unfold", issue = "55977")] -pub use self::sources::{FromFn, from_fn, Successors, successors}; +pub use self::sources::{FromFn, from_fn}; +#[stable(feature = "iter_successors", since = "1.34.0")] +pub use self::sources::{Successors, successors}; #[stable(feature = "rust1", since = "1.0.0")] pub use self::traits::{FromIterator, IntoIterator, DoubleEndedIterator, Extend}; diff --git a/src/libcore/iter/sources.rs b/src/libcore/iter/sources.rs index 6f45f082d6a..359cf24ec57 100644 --- a/src/libcore/iter/sources.rs +++ b/src/libcore/iter/sources.rs @@ -572,13 +572,12 @@ impl<F> fmt::Debug for FromFn<F> { /// and calls the given `FnMut(&T) -> Option<T>` closure to compute each item’s successor. /// /// ``` -/// #![feature(iter_unfold)] /// use std::iter::successors; /// /// let powers_of_10 = successors(Some(1_u16), |n| n.checked_mul(10)); /// assert_eq!(powers_of_10.collect::<Vec<_>>(), &[1, 10, 100, 1_000, 10_000]); /// ``` -#[unstable(feature = "iter_unfold", issue = "55977")] +#[stable(feature = "iter_successors", since = "1.34.0")] pub fn successors<T, F>(first: Option<T>, succ: F) -> Successors<T, F> where F: FnMut(&T) -> Option<T> { @@ -598,13 +597,13 @@ pub fn successors<T, F>(first: Option<T>, succ: F) -> Successors<T, F> /// /// [`successors`]: fn.successors.html #[derive(Clone)] -#[unstable(feature = "iter_unfold", issue = "55977")] +#[stable(feature = "iter_successors", since = "1.34.0")] pub struct Successors<T, F> { next: Option<T>, succ: F, } -#[unstable(feature = "iter_unfold", issue = "55977")] +#[stable(feature = "iter_successors", since = "1.34.0")] impl<T, F> Iterator for Successors<T, F> where F: FnMut(&T) -> Option<T> { @@ -628,12 +627,12 @@ impl<T, F> Iterator for Successors<T, F> } } -#[unstable(feature = "iter_unfold", issue = "55977")] +#[stable(feature = "iter_successors", since = "1.34.0")] impl<T, F> FusedIterator for Successors<T, F> where F: FnMut(&T) -> Option<T> {} -#[unstable(feature = "iter_unfold", issue = "55977")] +#[stable(feature = "iter_successors", since = "1.34.0")] impl<T: fmt::Debug, F> fmt::Debug for Successors<T, F> { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { f.debug_struct("Successors") |