Re: table.remove in C api?

[Javier Guerra <javier@...>]

On Fri, Aug 21, 2009 at 2:47 PM, Chris Camacho<c.camacho@ntlworld.com> wrote:
> I have a table indexed by pointers (lightuserdata) with userdata values
> to allow me to look up pointers and return userdata to Lua
>
> However in the userdata's __gc method I need to remove the
> pointer key from the table, there seems to be no analogue of
> table.remove(t,i) in lua's C api - or am I missing something obvious

table.remove(t [,pos])  is handy for working with the array part of a
table, not the hash part where you're storing your userdatas (since
they're indexed by lightuserdatas and not small consecutive indexes).

for the hash part, simply assign nil:   t(yourlightuserdata)=nil

in C, use lua_pushnil() and lua_settable() or lua_rawset()

-- 
Javier