Copying one table into another (in C)

[David Dunham <david@...>]

I'm in C, and want to copy all fields from one table into another  
one. Sort of the moral equivalent of

for k,v in pairs(a) do b.k = v end

(which I don't think is correct in Lua).

It seems like lua_next would be the way to iterate the table and get  
its keys and values -- it leaves them on the stack in such a way  
everything is ready for a call to lua_settable. But that pops the  
key, so that I can't then make the next lua_next call. (And I can't  
just push the key an extra time after lua_next, because then  
lua_settable wouldn't work.)

Am I missing something?

David Dunham   Macintosh Game Developer
GameHouse Studios     +1 206 926 5722     www.gamehouse.com
    "They said it couldn't be done but sometimes it doesn't
     work out that way." -- Casey Stengel