fix set method of variant

alib2std/src/extensions/variant.hpp

@@ -639,7 +639,7 @@ public:
 	template < typename T >
 	void set ( typename std::enable_if < ext::is_in<T, Ts...>::value && ! std::is_same < void, T >::value, T >::type && value ) {
 		helper_t::destroy(this->type_id, &this->data);
-		new (&this->data) T(value);
+		new ( & this->data ) T ( std::move ( value ) );
 		this->type_id = ext::type_index ( typeid ( T ) );
 	}
@@ -654,7 +654,7 @@ public:
 	template < typename T >
 	void set ( const typename std::enable_if < ext::is_in<T, Ts...>::value && ! std::is_same < void, T >::value, T >::type & value ) {
 		helper_t::destroy(this->type_id, &this->data);
-		new (&this->data) T(std::move(value));
+		new ( & this->data ) T ( value );
 		this->type_id = ext::type_index ( typeid ( T ) );
 	}