Add front/back access functions for double ended queue

2 files changed, 24 insertions, 4 deletions

diff --git a/collections/double_ended_queue.c b/collections/double_ended_queue.c
index 1f18330..ac9c131 100644
--- a/collections/double_ended_queue.c
+++ b/collections/double_ended_queue.c
@@ -192,3 +192,23 @@ int size;
 
 	root->end = root->beg + size;
 }
+
+void* deq_front(root)
+deq *root;
+{
+	if (!root) {
+		return;
+	}
+
+	return *root->beg;
+}
+
+void* deq_back(root)
+deq *root;
+{
+	if (!root) {
+		return;
+	}
+
+	return *root->end;
+}
diff --git a/collections/double_ended_queue.h b/collections/double_ended_queue.h
index 283d9c3..226918d 100644
--- a/collections/double_ended_queue.h
+++ b/collections/double_ended_queue.h
@@ -22,13 +22,13 @@ void* deq_pop_back(deq*);
 void deq_swap(deq*, int, int);
 void deq_truncate(deq*, int);
 
+void* deq_front(deq*);
+void* deq_back(deq*);
+
 
 /*
  * resevee
- * front
- * back
- * push/pop front
- * push/pop back
+ * push back
  * swap_rm_front/back
  * insert
  * remove