nodestack: destroy Nodes properly in ~NodeStack()

diff --git a/nodestack.cc b/nodestack.cc
index 0be23af..6b1d4ef 100644 (file)
--- a/nodestack.cc
+++ b/nodestack.cc
@@ -372,6 +372,8 @@ NodeStack::NodeStack() :
 
 NodeStack::~NodeStack()
 {
+       for (unsigned int i = 0; i < node_list.size(); i++)
+               delete node_list[i];
 }
 
 void NodeStack::print()