Can someone explain me this code ???

Question

It is an example of recursive function from learncpp.com .
I can't understand why the output includes this:
pop 2
pop 3
pop 4
pop 5

Website link:
http://www.learncpp.com/cpp-tutorial/7-11-recursion/

Answer 1

Is there a reason why you wouldn't expect these to output, considering there is a line printing these to the output stream?

What behavior were you expecting with the pop messages?

Remember, each recursive call will [first] execute everything above the recursive call line. After the final recursive call is completed, execution will proceed below the recursion line for each call on the stack.

[UPDATED: Added word in bracket for clarity.]

Answer 2

@David

"After the final recursive call is completed, execution will proceed below the recursion line for each call on the stack."
Ok I understood it . Thanks!!!
This is a property of every recursive function right ?

Answer 3

@Junaid... As this code was written, that is the behavior. If you were attempting a different behavior, let me know and I can help with what needs to be modified.

Answer 4

@David
I was expecting this output:
First all push statements
pop 1

Just this.
But I think I understood it now properly.
Watched some videos on YouTube.
Thanks for helping brother!!😀

Answer 5

Gotcha... I'm glad I could help.

Answer 6

one time return 1,