From 58307bc273dc48b062d7d873a30d10048b258380 Mon Sep 17 00:00:00 2001
From: Justus K <justus.k@protonmail.com>
Date: Sun, 13 Dec 2020 14:59:50 +0100
Subject: [PATCH] stabilize `peekable_next_if`

---
 library/core/src/iter/adapters/peekable.rs | 7 ++-----
 library/core/tests/lib.rs                  | 1 -
 src/librustdoc/lib.rs                      | 1 -
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/library/core/src/iter/adapters/peekable.rs b/library/core/src/iter/adapters/peekable.rs
index 2f8b9653c59..213a595e8cf 100644
--- a/library/core/src/iter/adapters/peekable.rs
+++ b/library/core/src/iter/adapters/peekable.rs
@@ -265,7 +265,6 @@ impl<I: Iterator> Peekable<I> {
     /// # Examples
     /// Consume a number if it's equal to 0.
     /// ```
-    /// #![feature(peekable_next_if)]
     /// let mut iter = (0..5).peekable();
     /// // The first item of the iterator is 0; consume it.
     /// assert_eq!(iter.next_if(|&x| x == 0), Some(0));
@@ -277,14 +276,13 @@ impl<I: Iterator> Peekable<I> {
     ///
     /// Consume any number less than 10.
     /// ```
-    /// #![feature(peekable_next_if)]
     /// let mut iter = (1..20).peekable();
     /// // Consume all numbers less than 10
     /// while iter.next_if(|&x| x < 10).is_some() {}
     /// // The next value returned will be 10
     /// assert_eq!(iter.next(), Some(10));
     /// ```
-    #[unstable(feature = "peekable_next_if", issue = "72480")]
+    #[stable(feature = "peekable_next_if", since = "1.49.0")]
     pub fn next_if(&mut self, func: impl FnOnce(&I::Item) -> bool) -> Option<I::Item> {
         match self.next() {
             Some(matched) if func(&matched) => Some(matched),
@@ -302,7 +300,6 @@ impl<I: Iterator> Peekable<I> {
     /// # Example
     /// Consume a number if it's equal to 0.
     /// ```
-    /// #![feature(peekable_next_if)]
     /// let mut iter = (0..5).peekable();
     /// // The first item of the iterator is 0; consume it.
     /// assert_eq!(iter.next_if_eq(&0), Some(0));
@@ -311,7 +308,7 @@ impl<I: Iterator> Peekable<I> {
     /// // `next_if_eq` saves the value of the next item if it was not equal to `expected`.
     /// assert_eq!(iter.next(), Some(1));
     /// ```
-    #[unstable(feature = "peekable_next_if", issue = "72480")]
+    #[stable(feature = "peekable_next_if", since = "1.49.0")]
     pub fn next_if_eq<T>(&mut self, expected: &T) -> Option<I::Item>
     where
         T: ?Sized,
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index 2aa3598a0d9..1b19d7f292f 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -57,7 +57,6 @@
 #![feature(never_type)]
 #![feature(unwrap_infallible)]
 #![feature(option_unwrap_none)]
-#![feature(peekable_next_if)]
 #![feature(peekable_peek_mut)]
 #![feature(partition_point)]
 #![feature(once_cell)]
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index 286a29edd95..184daafca27 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -9,7 +9,6 @@
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![feature(or_patterns)]
-#![feature(peekable_next_if)]
 #![feature(test)]
 #![feature(crate_visibility_modifier)]
 #![feature(never_type)]