From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 27 Sep 2012 20:38:10 +0000 (+0300)
Subject: Don't give out a non-const reference from a const Variant
X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=commitdiff_plain;h=be67e7f4a28332bfab44d0cbc9f008e24ddf3510

Don't give out a non-const reference from a const Variant
---

diff --git a/source/core/variant.h b/source/core/variant.h
index e00885c..4a0c89c 100644
--- a/source/core/variant.h
+++ b/source/core/variant.h
@@ -61,14 +61,28 @@ public:
 		return *this;
 	}
 
+private:
 	template<typename T>
-	T &value() const
+	Store<typename RemoveConst<T>::Type> *get_typed_store() const
 	{
 		typedef typename RemoveConst<T>::Type NCT;
 		Store<NCT> *s = dynamic_cast<Store<NCT> *>(store);
 		if(!s)
 			throw type_mismatch(typeid(T), (store ? store->type_id() : typeid(void)));
-		return s->data;
+		return s;
+	}
+
+public:
+	template<typename T>
+	T &value()
+	{
+		return get_typed_store<T>()->data;
+	}
+
+	template<typename T>
+	const T &value() const
+	{
+		return get_typed_store<T>()->data;
 	}
 
 	template<typename T>