Re: swig and arrays as class members

[Mark Gossage <mark@...>]

> I have a class which has arrays as members, the wrapper code is 
> generated with swig, but when I try to access the array elements I got 
> an error saying that the array is an userdata. Can this be solved or 
> should I change the array for some auxiliar class with accessor
> methods?

Hello Luo Hei,
Just treat it like a normal SWIG wrappered array.
SWIG considers an array to be just another pointer.
SWIG will not do a conversion from lua table<->C array for you.
The best way to overcome this is to use carray.i
Something like this:

%module demo;
%include "carrays.i"
%array_class(int,iarr)

%inline %{    
class A
{
public:
    int arr[10];
};    
%}
================
require "demo"
a=demo.A()
arr=demo.iarr_frompointer(a.arr)
print(arr[0],arr[1],arr[2])
===============
The
 iarr_frompointer function converts a C array(pointer) 
into a simple wrappered class which overloads the [] operator.

Thats my preference.
Regards,
Mark

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