List and list elements, where are stored?

Question

Given this piece of code:

#include 
(void) someFunction(void) {
    list  l;
    l.push_back(1);
}

• Where are t

Answer 1

The answer you selected is incorrect about 1 thing...

returning a list does not call the list's copy constructor.

list func()
{
  list res; // &res returns 0x7fff183f0900
  res.push_back(10);
  return res;
}

list l = func();   // &l also returns 0x7fff183f0900 (no copy)

You can double check this by printing &res in the function and &l outside the function.

The compiler is optimized to pass through returned objects without making copies, otherwise every single non-pointer object returned would be copied, which would be insane.