Re: Does LUA switch the C stack?

[Axel Mamode <axel@...>]

Lothar Scholz wrote:
> Does LUA switch the C stack in any way when using coroutines? I'm 99%
> sure the answer is no because it can't be done with ANSI C.
>   
No. The luavm in general does not use the C stack for much. The 
exception is coroutines (where there is a recursive call to the vm for 
resume, and a return for yield) and C calls (well, obviously, you have 
to call the C function with some C stack space).

As you mentioned, it is all ANSI C, no raw manipulation of the C stack 
is involved.


For more information, see The implementation of Lua 5.0, by R. 
Ierusalimschy, L. H. de Figueiredo, W. Celes:
http://www.tecgraf.puc-rio.br/~lhf/ftp/doc/jucs05.pdf
Page 11 talks about exactly that.