[Swig-user] Arrays of objects

[Leonid Z. <lz...@il...>]

Hi,

I'm attempting to use SWIG to allow me to easily call C++ native code from
C# managed code. I had a problem with getting SWIG to generate the correct
method signatures when I try to pass an array of user-defined objects as a
parameter.  Here's the basic setup:

cppcode.hpp - 

class A {
	private:
		double *values;
		int values_len;
	public:
		void setValues(double *data, int data_len);
};

class B {
	private:
		A *objects;
		int objects_len;
	public:
		void setObjects(A *data, int data_len);
};

cppcode.i - 

%include "arrays_csharp.i";
%module CPPCode
%{
#include "cppcode.hpp"
$};

%csmethodmodifiers A::setValues "public unsafe";
%apply double FIXED[] {double *data};

class A {
	public:
		void setValues(double *data, int data_len);
};

%csmethodmodifiers B::setObjects "public unsafe";
%apply A FIXED[] {A *data};

class B {
	public:
		void setObjects(A *data, int data_len);
};


What happens when I run SWIG on this is that the C# class definition for A
is generated correctly, with setValues taking an array of doubles; however,
the C# class definition for B is not generated correctly - A *data in
setObjects becomes a single instance of type A, not an array.  Is there any
way for me to force SWIG to generate the correct method signature?

--
Best Regards,
Leonid Zamdborg
Institute for Genomic Biology
University of Illinois at Urbana-Champaign