Re: Returning data from C functions called using "loadlib".

[Aaron Newell <add_aaron_2_x@...>]

Thanks but that doesnt seem to work:

extract from c file:
 static int functionFromCLibrary(lua_State* L)
 {
  int a = (int)lua_tonumber(L, -1);
  printf("cfunction: %d\n", a);
  a = a + 1;
  printf("cfunction now: %d\n", a);
  return a;
 }

lua command prompt:
> yes = 1
> print(yes) 
1
> yesyes = functionFromCLibrary(yes)
> print(yesyes)
function: 0x1033b0

It doesnt seem to be returning my number. Just a
pointer to the c function.


> Date: Mon, 30 Aug 2004 17:40:21 -0500
> From: Rici Lake <lua@ricilake.net>
> Subject: Re: Returning data from C functions called
> using "loadlib".
> To: Lua list <lua@bazar2.conectiva.com.br>
> 
> If what you mean is:
> 
>    local a = 3
>    cfunction(a)
>    -- now a has magically become 5
> 
> Then you can't do it, in Lua or any sensible
> language ;)
> (Well, we all have our biases.)
> In Lua, all arguments are passed by value.
> 
> Do this:
> 
> a = cfunction()


	
	
		
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