1 files changed, 8 insertions, 7 deletions
diff --git a/lib/Core/PTree.h b/lib/Core/PTree.h
index 11d3f48c..faa65d85 100644
--- a/lib/Core/PTree.h
+++ b/lib/Core/PTree.h
@@ -22,8 +22,8 @@ namespace klee {
     typedef class PTreeNode Node;
     Node *root;
 
-    PTree(const data_type &_root);
-    ~PTree();
+    explicit PTree(const data_type &_root);
+    ~PTree() = default;
     
     std::pair<Node*,Node*> split(Node *n,
                                  const data_type &leftData,
@@ -36,13 +36,14 @@ namespace klee {
   class PTreeNode {
     friend class PTree;
   public:
-    PTreeNode *parent, *left, *right;
-    ExecutionState *data;
-    ref<Expr> condition;
+    PTreeNode *parent = nullptr;
+    PTreeNode *left = nullptr;
+    PTreeNode *right = nullptr;
+    ExecutionState *data = nullptr;
 
   private:
-    PTreeNode(PTreeNode *_parent, ExecutionState *_data);
-    ~PTreeNode();
+    PTreeNode(PTreeNode * parent, ExecutionState * data);
+    ~PTreeNode() = default;
   };
 }