How to pass the ownership of an object to the outside of the function

Is there any method that can pass the ownership of an object created in the function on the stack memory to the outside of the function without using copy construction?

Usually, compiler will automatically call destruction to the object on the stack of a function. Therefore, if we want to create an object of a class(maybe with some specific parameters), how can we avoid wasting lots of resources copying from temp objects?

Here is one common case:

while(...){
    vectors.push_back(createObject( parameter ));
}

So when we want to create objects in a iteration with some parameters, and push them into a vector, normal value passed way will take a lot of time copying objects. I don't want to use pointer and new objects on the hipe memory as user are likely to forget delete them and consequently cause memory leak.

Well, smart pointer maybe a solution. But..less elegent, I think. hhhh

Is there any way of applying rvalue reference and move semantics to solve this problem?