lua memory managment

Question

How can I free the lua stack?

Answer 1

I think you need lua_remove? I just skimmed over the manual, not sure if there's a "clear whole stack" function.

void lua_remove (lua_State *L, int index);

Removes the element at the given valid index, shifting down the elements above this index to fill the gap. Cannot be called with a pseudo-index, because a pseudo-index is not an actual stack position.

Answer 2

Basically, the only way I know for freeing the whole lua stack is calling lua_close on the lua_State instance.