New upstream version 1.41.1+dfsg1

[rustc.git] / src / libcore / iter / traits / double_ended.rs

diff --git a/src/libcore/iter/traits/double_ended.rs b/src/libcore/iter/traits/double_ended.rs
index 006b243ca42aa8c328060987edbf9c90013c2ff4..104724d9fb63a2bae43f7e5c14f0fa08a0928054 100644 (file)
--- a/src/libcore/iter/traits/double_ended.rs
+++ b/src/libcore/iter/traits/double_ended.rs
@@ -1,5 +1,5 @@
-use crate::ops::Try;
 use crate::iter::LoopState;
+use crate::ops::Try;
 
 /// An iterator able to yield elements from both ends.
 ///
@@ -113,7 +113,9 @@ pub trait DoubleEndedIterator: Iterator {
     #[stable(feature = "iter_nth_back", since = "1.37.0")]
     fn nth_back(&mut self, mut n: usize) -> Option<Self::Item> {
         for x in self.rev() {
-            if n == 0 { return Some(x) }
+            if n == 0 {
+                return Some(x);
+            }
             n -= 1;
         }
         None
@@ -157,7 +159,7 @@ pub trait DoubleEndedIterator: Iterator {
     where
         Self: Sized,
         F: FnMut(B, Self::Item) -> R,
-        R: Try<Ok=B>
+        R: Try<Ok = B>,
     {
         let mut accum = init;
         while let Some(x) = self.next_back() {
@@ -279,7 +281,7 @@ pub trait DoubleEndedIterator: Iterator {
     fn rfind<P>(&mut self, predicate: P) -> Option<Self::Item>
     where
         Self: Sized,
-        P: FnMut(&Self::Item) -> bool
+        P: FnMut(&Self::Item) -> bool,
     {
         #[inline]
         fn check<T>(