diff --git a/applications/test/List/Test-List.C b/applications/test/List/Test-List.C
index cfd5754d1b..c334f7bbd9 100644
--- a/applications/test/List/Test-List.C
+++ b/applications/test/List/Test-List.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -42,8 +42,6 @@ See also
 #include "vector.H"
 #include "ListOps.H"
 
-#include<list>
-
 using namespace Foam;
 
 
diff --git a/src/OpenFOAM/containers/Lists/FixedList/FixedList.H b/src/OpenFOAM/containers/Lists/FixedList/FixedList.H
index 287f1525da..3cfd0b40aa 100644
--- a/src/OpenFOAM/containers/Lists/FixedList/FixedList.H
+++ b/src/OpenFOAM/containers/Lists/FixedList/FixedList.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -286,7 +286,7 @@ public:
     // STL reverse_iterator
 
         //- Reverse iterator for reverse traversal of FixedList
-        typedef T* reverse_iterator;
+        typedef std::reverse_iterator<iterator> reverse_iterator;
 
         //- Return reverse_iterator to begin reverse traversing the FixedList
         inline reverse_iterator rbegin();
@@ -298,7 +298,7 @@ public:
     // STL const_reverse_iterator
 
         //- Reverse iterator for reverse traversal of constant FixedList
-        typedef const T* const_reverse_iterator;
+        typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 
         //- Return const_reverse_iterator to begin reverse traversing FixedList
         inline const_reverse_iterator crbegin() const;
diff --git a/src/OpenFOAM/containers/Lists/FixedList/FixedListI.H b/src/OpenFOAM/containers/Lists/FixedList/FixedListI.H
index 590cdf6c81..cf5d492800 100644
--- a/src/OpenFOAM/containers/Lists/FixedList/FixedListI.H
+++ b/src/OpenFOAM/containers/Lists/FixedList/FixedListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -326,12 +326,11 @@ Foam::FixedList<T, Size>::begin()
     return v_;
 }
 
-
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
-Foam::FixedList<T, Size>::begin() const
+inline typename Foam::FixedList<T, Size>::iterator
+Foam::FixedList<T, Size>::end()
 {
-    return v_;
+    return &v_[Size];
 }
 
 
@@ -344,13 +343,21 @@ Foam::FixedList<T, Size>::cbegin() const
 
 
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::iterator
-Foam::FixedList<T, Size>::end()
+inline typename Foam::FixedList<T, Size>::const_iterator
+Foam::FixedList<T, Size>::cend() const
 {
     return &v_[Size];
 }
 
 
+template<class T, unsigned Size>
+inline typename Foam::FixedList<T, Size>::const_iterator
+Foam::FixedList<T, Size>::begin() const
+{
+    return v_;
+}
+
+
 template<class T, unsigned Size>
 inline typename Foam::FixedList<T, Size>::const_iterator
 Foam::FixedList<T, Size>::end() const
@@ -360,58 +367,50 @@ Foam::FixedList<T, Size>::end() const
 
 
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
-Foam::FixedList<T, Size>::cend() const
-{
-    return &v_[Size];
-}
-
-
-template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::iterator
+inline typename Foam::FixedList<T, Size>::reverse_iterator
 Foam::FixedList<T, Size>::rbegin()
 {
-    return &v_[Size-1];
+    return reverse_iterator(end());
 }
 
 
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
-Foam::FixedList<T, Size>::rbegin() const
-{
-    return &v_[Size-1];
-}
-
-
-template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
-Foam::FixedList<T, Size>::crbegin() const
-{
-    return &v_[Size-1];
-}
-
-
-template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::iterator
+inline typename Foam::FixedList<T, Size>::reverse_iterator
 Foam::FixedList<T, Size>::rend()
 {
-    return &v_[-1];
+    return reverse_iterator(begin());
 }
 
 
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
-Foam::FixedList<T, Size>::rend() const
+inline typename Foam::FixedList<T, Size>::const_reverse_iterator
+Foam::FixedList<T, Size>::crbegin() const
 {
-    return &v_[-1];
+    return const_reverse_iterator(cend());
 }
 
 
 template<class T, unsigned Size>
-inline typename Foam::FixedList<T, Size>::const_iterator
+inline typename Foam::FixedList<T, Size>::const_reverse_iterator
 Foam::FixedList<T, Size>::crend() const
 {
-    return &v_[-1];
+    return const_reverse_iterator(cbegin());
+}
+
+
+template<class T, unsigned Size>
+inline typename Foam::FixedList<T, Size>::const_reverse_iterator
+Foam::FixedList<T, Size>::rbegin() const
+{
+    return const_reverse_iterator(cend());
+}
+
+
+template<class T, unsigned Size>
+inline typename Foam::FixedList<T, Size>::const_reverse_iterator
+Foam::FixedList<T, Size>::rend() const
+{
+    return const_reverse_iterator(cbegin());
 }
 
 
diff --git a/src/OpenFOAM/containers/Lists/UList/UList.H b/src/OpenFOAM/containers/Lists/UList/UList.H
index 3560aa6360..4074e7c1b1 100644
--- a/src/OpenFOAM/containers/Lists/UList/UList.H
+++ b/src/OpenFOAM/containers/Lists/UList/UList.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -297,7 +297,7 @@ public:
     // STL reverse_iterator
 
         //- Reverse iterator for reverse traversal of UList
-        typedef T* reverse_iterator;
+        typedef std::reverse_iterator<iterator> reverse_iterator;
 
         //- Return reverse_iterator to begin reverse traversing the UList
         inline reverse_iterator rbegin();
@@ -309,7 +309,7 @@ public:
     // STL const_reverse_iterator
 
         //- Reverse iterator for reverse traversal of constant UList
-        typedef const T* const_reverse_iterator;
+        typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 
         //- Return const_reverse_iterator to begin reverse traversing the UList
         inline const_reverse_iterator crbegin() const;
diff --git a/src/OpenFOAM/containers/Lists/UList/UListI.H b/src/OpenFOAM/containers/Lists/UList/UListI.H
index d7fa231043..3bb3d25687 100644
--- a/src/OpenFOAM/containers/Lists/UList/UListI.H
+++ b/src/OpenFOAM/containers/Lists/UList/UListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -218,19 +218,6 @@ Foam::UList<T>::begin()
     return v_;
 }
 
-template<class T>
-inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::begin() const
-{
-    return v_;
-}
-
-template<class T>
-inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::cbegin() const
-{
-    return v_;
-}
 
 template<class T>
 inline typename Foam::UList<T>::iterator
@@ -239,13 +226,15 @@ Foam::UList<T>::end()
     return &v_[size_];
 }
 
+
 template<class T>
 inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::end() const
+Foam::UList<T>::cbegin() const
 {
-    return &v_[size_];
+    return v_;
 }
 
+
 template<class T>
 inline typename Foam::UList<T>::const_iterator
 Foam::UList<T>::cend() const
@@ -253,48 +242,71 @@ Foam::UList<T>::cend() const
     return &v_[size_];
 }
 
+
 template<class T>
-inline typename Foam::UList<T>::iterator
+inline typename Foam::UList<T>::const_iterator
+Foam::UList<T>::begin() const
+{
+    return v_;
+}
+
+
+template<class T>
+inline typename Foam::UList<T>::const_iterator
+Foam::UList<T>::end() const
+{
+    return &v_[size_];
+}
+
+
+template<class T>
+inline typename Foam::UList<T>::reverse_iterator
 Foam::UList<T>::rbegin()
 {
-    return &v_[size_-1];
+    return reverse_iterator(end());
 }
 
-template<class T>
-inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::rbegin() const
-{
-    return &v_[size_-1];
-}
 
 template<class T>
-inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::crbegin() const
-{
-    return &v_[size_-1];
-}
-
-template<class T>
-inline typename Foam::UList<T>::iterator
+inline typename Foam::UList<T>::reverse_iterator
 Foam::UList<T>::rend()
 {
-    return &v_[-1];
+    return reverse_iterator(begin());
 }
 
+
 template<class T>
-inline typename Foam::UList<T>::const_iterator
-Foam::UList<T>::rend() const
+inline typename Foam::UList<T>::const_reverse_iterator
+Foam::UList<T>::crbegin() const
 {
-    return &v_[-1];
+    return const_reverse_iterator(cend());
 }
 
+
 template<class T>
-inline typename Foam::UList<T>::const_iterator
+inline typename Foam::UList<T>::const_reverse_iterator
 Foam::UList<T>::crend() const
 {
-    return &v_[-1];
+    return const_reverse_iterator(cbegin());
 }
 
+
+template<class T>
+inline typename Foam::UList<T>::const_reverse_iterator
+Foam::UList<T>::rbegin() const
+{
+    return const_reverse_iterator(cend());
+}
+
+
+template<class T>
+inline typename Foam::UList<T>::const_reverse_iterator
+Foam::UList<T>::rend() const
+{
+    return const_reverse_iterator(cbegin());
+}
+
+
 template<class T>
 inline Foam::label Foam::UList<T>::size() const
 {