From: Daniel Berger <djberg96@...>
Date: 2006-12-05T05:39:32+09:00
Subject: Swig, Ruby, C++ question

Hi all,

Solaris 10
swig 1.3.21
Sun Studio 11

I'm trying my hand at SWIG here.  I've read over
http://www.swig.org/Doc1.3/Ruby.html, but I'm confused as to how to
setup the interface file so that I get a class.  I don't want a
module, if possible.

Anyway, given the following .h file:

// polygon.h
class Rectangle {
   int x, y;

   public:
      void set_values(int,int);
      int area();
};

int Rectangle::area(){
   return x * y;
}

void Rectangle::set_values (int a, int b) {
  x = a;
  y = b;
}

I created a simple interface file (polygon.i):

%module polygon

Then I ran swig like this:

swig -c++ -ruby polygon.i

That generates the file, but it only contains a Polygon module.
There's no Rectangle class or methods.

What am I doing wrong here?  And, is there any way to just generate a
Rectangle class without a Polygon module?

Thanks,

Dan

PS - I tried to find the tutorial that Lyle Johnson gave back in 2002,
but I can't find a good link.  Anyone have one handy?