Re: Memoizing Functions - yet another attempt

[Philipp Janda <siffiejoe@...>]

Am 16.12.2013 02:04 schröbte Sven Olsen:
> The argument tree approach can also be expanded to handle nil argument or
> nil return values; though doing so requires a small C-api function.
>
>    static int count_args(lua_State * L) {
>      lua_pushnumber(L,lua_gettop(L));
>      return 1;
>    }

This is pretty much what `select( '#', ... )` does[1] ...

  [1]: http://www.lua.org/source/5.2/lbaselib.c.html#luaB_select

> -Sven

Philipp