Re: call_function causes my program to crash

I'd guess its the lua syntactic sugar of <class:method> v. <class.method> .
 When you use the ':'(colon) operator in lua it infers the object to act on
is the first arg passed to the method, just like 'this' in c++ is passed by
the compiler.  When you call it, it would appear that you are not passing
the object that Update() should act on.  When it tries, I'd bet you get a
SEGV or other nasty because the stack in lua holds some random address
pointing to a whose-i-jigger.
I could be completely off here...but I'm others will chime in w/ the
solution.

-tom

On Sun, Aug 9, 2009 at 5:34 PM, Secretive Loon <[email protected]>wrote:

> I've successfully used call_function to call Lua functions before and
> didn't have a problem. I think it's because they were of global scope like:int
> sum = luabind::call_function<int>( L, "add", 2, 3 );
>
> but the one I'm trying to do now is like this, with a different scope:
> luabind::call_function<void>( L, "CNPC_Nurse:Update" );
>
> -- Here's the Lua code that I'm trying to call (in a different file from
> the C++, of course)
> function CNPC_Nurse:Update()
> Msg( "\nIn Nurse:Update" )
> end
>
> // these came earlier in the file as the above C++ code
> luabind::module( L ) [
> luabind::class_<CNPC_Nurse>( "CNPC_Nurse" )
> ];
>
> When I run it, it crashes the application without a message. I've narrowed
> it down to the call_function line causes the problem. Any idea why the
> "CNPC_Nurse:Update" call breaks it?
>
> Thanks :)
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
> _______________________________________________
> luabind-user mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/luabind-user
>
>

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day 
trial. Simplify your report design, integration and deployment - and focus on 
what you do best, core application coding. Discover what's new with 
Crystal Reports now.  http://p.sf.net/sfu/bobj-july

_______________________________________________
luabind-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/luabind-user