diff --git a/sprout/array.hpp b/sprout/array.hpp
index 250e0768..da310d35 100644
--- a/sprout/array.hpp
+++ b/sprout/array.hpp
@@ -9,6 +9,7 @@
 #include <sprout/config.hpp>
 #include <sprout/index_tuple.hpp>
 #include <sprout/fixed_container/traits.hpp>
+#include <sprout/fixed_container/functions.hpp>
 #include <sprout/detail/iterator.hpp>
 #include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT_DETAIL
 
@@ -40,7 +41,7 @@ namespace sprout {
 			return N;
 		}
 		SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT {
-			return N != 0;
+			return N == 0;
 		}
 		SPROUT_CONSTEXPR size_type max_size() const SPROUT_NOEXCEPT {
 			return size();
@@ -69,23 +70,23 @@ namespace sprout {
 			return &elems[0] + size();
 		}
 		reverse_iterator rbegin() SPROUT_NOEXCEPT {
-			return reverse_iterator(begin());
-		}
-		SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(begin());
-		}
-		SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(begin());
-		}
-		reverse_iterator rend() SPROUT_NOEXCEPT {
 			return reverse_iterator(end());
 		}
-		SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT {
+		SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT {
 			return const_reverse_iterator(end());
 		}
-		SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT {
+		SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT {
 			return const_reverse_iterator(end());
 		}
+		reverse_iterator rend() SPROUT_NOEXCEPT {
+			return reverse_iterator(begin());
+		}
+		SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT {
+			return const_reverse_iterator(begin());
+		}
+		SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT {
+			return const_reverse_iterator(begin());
+		}
 		reference operator[](size_type i) {
 			return elems[i];
 		}
diff --git a/sprout/detail/iterator.hpp b/sprout/detail/iterator.hpp
index f7dbff16..4ce3e1a8 100644
--- a/sprout/detail/iterator.hpp
+++ b/sprout/detail/iterator.hpp
@@ -75,15 +75,15 @@ namespace sprout {
 			reverse_iterator(reverse_iterator const&) = default;
 			SPROUT_CONSTEXPR explicit reverse_iterator(iterator_type it)
 				: current(it)
-				, deref_tmp(current - 1)
+				, deref_tmp(it - 1)
 			{}
 			template<typename U>
 			SPROUT_CONSTEXPR reverse_iterator(reverse_iterator<U> const& it)
 				: current(it)
-				, deref_tmp(current - 1)
+				, deref_tmp(it - 1)
 			{}
 			template<typename U>
-			reverse_iterator& operator=(const reverse_iterator<U>& it) {
+			reverse_iterator& operator=(reverse_iterator<U> const& it) {
 				reverse_iterator temp(it);
 				temp.swap(this);
 				return this;
diff --git a/sprout/string.hpp b/sprout/string.hpp
index a73c821d..ae218105 100644
--- a/sprout/string.hpp
+++ b/sprout/string.hpp
@@ -45,7 +45,7 @@ namespace sprout {
 			return N;
 		}
 		SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT {
-			return N != 0;
+			return N == 0;
 		}
 		SPROUT_CONSTEXPR size_type max_size() const SPROUT_NOEXCEPT {
 			return size();
@@ -74,22 +74,22 @@ namespace sprout {
 			return &elems[0] + size();
 		}
 		reverse_iterator rbegin() SPROUT_NOEXCEPT {
-			return reverse_iterator(begin());
+			return const_reverse_iterator(end());
 		}
 		SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(begin());
+			return const_reverse_iterator(end());
 		}
 		SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(begin());
+			return const_reverse_iterator(end());
 		}
 		reverse_iterator rend() SPROUT_NOEXCEPT {
-			return reverse_iterator(end());
+			return const_reverse_iterator(begin());
 		}
 		SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(end());
+			return const_reverse_iterator(begin());
 		}
 		SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT {
-			return const_reverse_iterator(end());
+			return const_reverse_iterator(begin());
 		}
 		reference operator[](size_type i) {
 			return elems[i];
diff --git a/sprout/sub_array.hpp b/sprout/sub_array.hpp
index 8bf5c63a..5d7fcd93 100644
--- a/sprout/sub_array.hpp
+++ b/sprout/sub_array.hpp
@@ -279,7 +279,7 @@ namespace sprout {
 			return last_ - first_;
 		}
 		SPROUT_CONSTEXPR bool empty() const {
-			return size() != 0;
+			return size() == 0;
 		}
 		SPROUT_CONSTEXPR size_type max_size() const {
 			return size();