From 0754bd28f332c271c5f62633d5a4c46a32beaf5c Mon Sep 17 00:00:00 2001
From: Hennadii Chernyshchyk <genaloner@gmail.com>
Date: Tue, 27 Jun 2023 14:02:20 +0300
Subject: [PATCH 1/2] Add `Clone` to `MatrixIter` and `MatrixIterMut`

---
 src/base/iter.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/base/iter.rs b/src/base/iter.rs
index b396b271..a076bd99 100644
--- a/src/base/iter.rs
+++ b/src/base/iter.rs
@@ -17,7 +17,7 @@ use crate::base::{Matrix, MatrixView, MatrixViewMut, Scalar};
 macro_rules! iterator {
     (struct $Name:ident for $Storage:ident.$ptr: ident -> $Ptr:ty, $Ref:ty, $SRef: ty) => {
         /// An iterator through a dense matrix with arbitrary strides matrix.
-        #[derive(Debug)]
+        #[derive(Clone, Debug)]
         pub struct $Name<'a, T, R: Dim, C: Dim, S: 'a + $Storage<T, R, C>> {
             ptr: $Ptr,
             inner_ptr: $Ptr,

From 922b0dbfa3b623e8362a599985eda7cc8ab851e0 Mon Sep 17 00:00:00 2001
From: Hennadii Chernyshchyk <genaloner@gmail.com>
Date: Sat, 8 Jul 2023 17:47:53 +0300
Subject: [PATCH 2/2] Derive Clone only on non-mutable version

---
 src/base/iter.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/base/iter.rs b/src/base/iter.rs
index a076bd99..ebffdb07 100644
--- a/src/base/iter.rs
+++ b/src/base/iter.rs
@@ -15,9 +15,9 @@ use crate::base::storage::{RawStorage, RawStorageMut};
 use crate::base::{Matrix, MatrixView, MatrixViewMut, Scalar};
 
 macro_rules! iterator {
-    (struct $Name:ident for $Storage:ident.$ptr: ident -> $Ptr:ty, $Ref:ty, $SRef: ty) => {
+    (struct $Name:ident for $Storage:ident.$ptr: ident -> $Ptr:ty, $Ref:ty, $SRef: ty, $($derives:ident),* $(,)?) => {
         /// An iterator through a dense matrix with arbitrary strides matrix.
-        #[derive(Clone, Debug)]
+        #[derive($($derives),*)]
         pub struct $Name<'a, T, R: Dim, C: Dim, S: 'a + $Storage<T, R, C>> {
             ptr: $Ptr,
             inner_ptr: $Ptr,
@@ -177,8 +177,8 @@ macro_rules! iterator {
     };
 }
 
-iterator!(struct MatrixIter for RawStorage.ptr -> *const T, &'a T, &'a S);
-iterator!(struct MatrixIterMut for RawStorageMut.ptr_mut -> *mut T, &'a mut T, &'a mut S);
+iterator!(struct MatrixIter for RawStorage.ptr -> *const T, &'a T, &'a S, Clone, Debug);
+iterator!(struct MatrixIterMut for RawStorageMut.ptr_mut -> *mut T, &'a mut T, &'a mut S, Debug);
 
 /*
  *