How do I return hundreds of values from a C++ function?

Question

In C++, whenever a function creates many (hundreds or thousands of) values, I used to have the caller pass an array that my function then fills with the output values:

Answer 1

I'd use something like

std::auto_ptr > computeValues(int input);
{
   std::auto_ptr > r(new std::vector);
   r->push_back(...) // Hundreds of these
   return r;
}

No copying overhead in the return or risk of leaking (if you use auto_ptr correctly in the caller).