COMMON: Added Common::List::front() and back() method (similar to std::list)

svn-id: r40154

2 files changed, 20 insertions, 4 deletions

diff --git a/common/list.h b/common/list.h
index b2ad3fbc18..1685843e8e 100644
--- a/common/list.h
+++ b/common/list.h
@@ -132,6 +132,22 @@ public:
 		i = erase(i);
 	}
 
+	t_T &front() {
+		return static_cast<Node *>(_anchor._next)->_data;
+	}
+
+	const t_T &front() const {
+		return static_cast<Node *>(_anchor._next)->_data;
+	}
+
+	t_T &back() {
+		return static_cast<Node *>(_anchor._prev)->_data;
+	}
+
+	const t_T &back() const {
+		return static_cast<Node *>(_anchor._prev)->_data;
+	}
+
 
 	List<t_T> &operator=(const List<t_T> &list) {
 		if (this != &list) {
diff --git a/common/queue.h b/common/queue.h
index cfe7f4e596..df8dcfe04c 100644
--- a/common/queue.h
+++ b/common/queue.h
@@ -55,19 +55,19 @@ public:
 	}
 
 	T &front() {
-		return *_impl.begin();
+		return _impl.front();
 	}
 
 	const T &front() const {
-		return *_impl.begin();
+		return _impl.front();
 	}
 
 	T &back() {
-		return *_impl.reverse_begin();
+		return _impl.back();
 	}
 
 	const T &back() const {
-		return *_impl.reverse_begin();
+		return _impl.back();
 	}
 
 	T pop() {