From 4faad381120f2bae2cee8dccc7e6347598589e95 Mon Sep 17 00:00:00 2001
From: JoelKatz <DavidJoelSchwartz@GMail.com>
Date: Mon, 10 Sep 2012 16:29:42 -0700
Subject: [PATCH] Base classes used polymorphically whose child classes have
 data members or destructors must themselves have virtual destructors or Bad
 Things(TM) happen.

---
 src/Operation.h       | 2 ++
 src/ScriptData.h      | 2 ++
 src/TransactionMeta.h | 1 +
 3 files changed, 5 insertions(+)

diff --git a/src/Operation.h b/src/Operation.h
index 9fca2498c..11c37d38f 100644
--- a/src/Operation.h
+++ b/src/Operation.h
@@ -12,6 +12,8 @@ public:
 	virtual bool work(Interpreter* interpreter)=0;
 
 	virtual int getFee();
+
+	virtual ~Operation() { ; }
 };
 
 // this is just an Int in the code
diff --git a/src/ScriptData.h b/src/ScriptData.h
index af9ce45c0..66fe2ed3e 100644
--- a/src/ScriptData.h
+++ b/src/ScriptData.h
@@ -9,6 +9,8 @@ class Data
 public:
 	typedef boost::shared_ptr<Data> pointer;
 
+	virtual ~Data(){ ; }
+
 	virtual bool isInt32(){ return(false); }
 	virtual bool isFloat(){ return(false); }
 	virtual bool isUint160(){ return(false); }
diff --git a/src/TransactionMeta.h b/src/TransactionMeta.h
index 729a72480..b62f9f361 100644
--- a/src/TransactionMeta.h
+++ b/src/TransactionMeta.h
@@ -46,6 +46,7 @@ protected:
 
 public:
 	TransactionMetaNodeEntry(int type) : mType(type) { ; }
+	virtual ~TransactionMetaNodeEntry() { ; }
 
 	int getType() const { return mType; }
 	virtual Json::Value getJson(int) const = 0;