From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 15 Dec 2008 11:40:24 +0000 (+0000)
Subject: Add copy constructor and copy assignment to Variant
X-Git-Tag: 1.1~7
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=7db1e6d50594b47a32ecca5a349a4e8540f890c0;p=libs%2Fcore.git

Add copy constructor and copy assignment to Variant
---

diff --git a/source/core/variant.h b/source/core/variant.h
index 6425fbf..6632831 100644
--- a/source/core/variant.h
+++ b/source/core/variant.h
@@ -19,6 +19,7 @@ private:
 	struct StoreBase
 	{
 		virtual ~StoreBase() { }
+		virtual StoreBase *clone() const =0;
 	};
 
 	template<typename T>
@@ -27,6 +28,7 @@ private:
 		T data;
 
 		Store(T d): data(d) { }
+		virtual StoreBase *clone() const { return new Store<T>(data); }
 	};
 
 	StoreBase *store;
@@ -35,6 +37,7 @@ public:
 	Variant(): store(0) { }
 	template<typename T>
 	Variant(const T &v): store(new Store<typename RemoveConst<T>::Type>(v)) { }
+	Variant(const Variant &v): store(v.store ? v.store->clone() : 0) { }
 	~Variant() { delete store; }
 
 	template<typename T>
@@ -45,6 +48,13 @@ public:
 		return *this;
 	}
 
+	Variant &operator=(const Variant &v)
+	{
+		delete store;
+		store=(v.store ? v.store->clone() : 0);
+		return *this;
+	}
+
 	template<typename T>
 	T &value() const
 	{