+
+ inline reference<T>& operator=(T* other)
+ {
+ if (value != other)
+ {
+ if (value && value->refcount_dec())
+ delete value;
+ value = other;
+ if (value)
+ value->refcount_inc();
+ }
+
+ return *this;
+ }
+
+ inline operator bool() const { return (value != NULL); }