请帮我翻译这句话:
黄汉 2002-10-29 08:46:33 The template class describes an object that stores a pointer to an allocated object of type Type* that ensures that the object to which it points gets destroyed automatically when control leaves a block.
这是类auto_ptr的说明,请问这句话是什么意思?关键是“when control leaves a block”这几个。