From d5ca2019a3f1b88d1ec7039fe4a8c21aa0456715 Mon Sep 17 00:00:00 2001
From: Remco Bloemen <remco@0x.org>
Date: Thu, 19 Nov 2020 13:00:28 -0800
Subject: [PATCH] impl FusedIterator

---
 src/base/iter.rs | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/base/iter.rs b/src/base/iter.rs
index bd6e8fc2..75de156e 100644
--- a/src/base/iter.rs
+++ b/src/base/iter.rs
@@ -1,5 +1,6 @@
 //! Matrix iterators.
 
+use std::iter::FusedIterator;
 use std::marker::PhantomData;
 use std::mem;
 
@@ -111,15 +112,6 @@ macro_rules! iterator {
             }
         }
 
-        impl<'a, N: Scalar, R: Dim, C: Dim, S: 'a + $Storage<N, R, C>> ExactSizeIterator
-            for $Name<'a, N, R, C, S>
-        {
-            #[inline]
-            fn len(&self) -> usize {
-                self.size
-            }
-        }
-
         impl<'a, N: Scalar, R: Dim, C: Dim, S: 'a + $Storage<N, R, C>> DoubleEndedIterator
             for $Name<'a, N, R, C, S>
         {
@@ -157,6 +149,20 @@ macro_rules! iterator {
                 }
             }
         }
+
+        impl<'a, N: Scalar, R: Dim, C: Dim, S: 'a + $Storage<N, R, C>> ExactSizeIterator
+            for $Name<'a, N, R, C, S>
+        {
+            #[inline]
+            fn len(&self) -> usize {
+                self.size
+            }
+        }
+
+        impl<'a, N: Scalar, R: Dim, C: Dim, S: 'a + $Storage<N, R, C>> FusedIterator
+            for $Name<'a, N, R, C, S>
+        {
+        }
     };
 }