Re: lua_pushlightuserdata fed with NULL pointer

[GrayFace <sergroj@...>]

On 24.10.2010 19:27, Shmuel Zeigerman wrote:
> 1. lua_pushstring(L, NULL) is equivalent to lua_pushnil(L).
> 2. lua_pushlightuserdata(L, NULL) pushes light userdata with null value.
>
> I would suggest (for Lua 5.2) making case 2 above to behave as case 1, 
> since there is no (easy) way to find out from Lua script if it was the 
> null pointer.
Someone may be using light userdata for integer values, like array indexes.

On a side note, I'm used to NULL char* being an empty string. That's how 
empty strings are represented in Delphi.

--
Best regards,
Sergey Rozhenko                 mailto:sergroj@mail.ru