Re: [Swig-user] Help needed!

[David P. <dpi...@me...>]

Hi All:

I am swigging a c project to C# now.

In my c project, i have two structure definition for A and B
typedef structure A{ C* file, double x, double y, ...}
typedef structure B{double x, double y, double z}
and a function declaration A* foo(int size, B* array);

How to swig the c project?

What i did is:
1) in the .i file, use
%include <windows.i>
%include <typemaps.i>
%include <carrays.i>
%include <arrays_csharp.i>
%include <cpointer.i>
%include "typecasts.h"
%include <libcstl.i>

%array_class(double, doubleArray);
%array_class(EQUIV, equivArray);
%array_class(int, intArray);
%array_class(float, floatArray);
%array_class(B, BArray);
...
...
2) call function foo at c# project in the way
BArrary b = new BArray(10);
// init element
A a = new A();
a = foo(B.cast());

3) all the code compile well but give "AccessViolation" error in the foo calling.  b looks like is ok.  error happened at a.  I am not clear how to process A in this situation. Anybody can
give some clues?

This code should not compile in the first place. The foo() function takes two parameters, but you only passed one parameter.