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Rename Iterator::fold_first to reduce and stabilize it #79805

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Merged
merged 3 commits into from
Feb 5, 2021
Merged

Rename Iterator::fold_first to reduce and stabilize it #79805

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5c056ed
Rename Iterator::fold_first to reduce.
m-ou-se Dec 7, 2020
26af55f
Improve documentation of Iterator::{fold, reduce}.
m-ou-se Dec 7, 2020
24e0940
Stabilize feature(iterator_fold_self): Iterator::reduce
m-ou-se Dec 7, 2020
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Stabilize feature(iterator_fold_self): Iterator::reduce
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@m-ou-se
m-ou-se committed Feb 4, 2021
commit 24e09401696e6b2689ae4c78d9a24504a17f1e3a
1 change: 0 additions & 1 deletion compiler/rustc_ast/src/lib.rs
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Expand Up @@ -14,7 +14,6 @@
#![feature(const_fn_transmute)]
#![feature(const_panic)]
#![feature(crate_visibility_modifier)]
#![feature(iterator_fold_self)]
#![feature(label_break_value)]
#![feature(nll)]
#![feature(or_patterns)]
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1 change: 0 additions & 1 deletion compiler/rustc_hir/src/lib.rs
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Expand Up @@ -6,7 +6,6 @@
#![feature(const_fn)] // For the unsizing cast on `&[]`
#![feature(const_panic)]
#![feature(in_band_lifetimes)]
#![feature(iterator_fold_self)]
#![feature(once_cell)]
#![feature(or_patterns)]
#![recursion_limit = "256"]
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4 changes: 1 addition & 3 deletions library/core/src/iter/traits/iterator.rs
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Expand Up @@ -2143,8 +2143,6 @@ pub trait Iterator {
/// Find the maximum value:
///
/// ```
/// #![feature(iterator_fold_self)]
///
/// fn find_max<I>(iter: I) -> Option<I::Item>
/// where I: Iterator,
/// I::Item: Ord,
Expand All @@ -2160,7 +2158,7 @@ pub trait Iterator {
/// assert_eq!(find_max(b.iter()), None);
/// ```
#[inline]
#[unstable(feature = "iterator_fold_self", issue = "68125")]
#[stable(feature = "iterator_fold_self", since = "1.51.0")]
fn reduce<F>(mut self, f: F) -> Option<Self::Item>
where
Self: Sized,
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