Add line when end of the window is reached using curses?

I have a small repl app using curses but I'm facing a problem to add new lines when end of window is reach. Output looks like the following, being --- the window limits:

---
REPL> :dothis
====>  Well done!
REPL> :dothat
====>  OK, done
REPL> :dothatagain====>  All right...REPL> // can't add more lines :(
---

How do I addstr when end of window is reached just like a normal terminal buffer? I don't need to scroll back, just write a trail of lines. Is there any window setting to get an infinite vertical window?

Answers in any common language are fine (C preferred)

Solution

After some research on curses native API I noticed there is a int scrollok(WINDOW *win, bool bf); function:

scrollok(*window, true);

I didn't find the function before because the curses biding library I was using didn't have this function implemented so I just made a wrapper for it. Conclusion is to always look at the native curses API when using external language API bidings.