From: jglueck@... (=?ISO-8859-1?Q?Bernhard_Gl=FCck?=)
Date: 2001-07-18T02:35:37+09:00
Subject: [ruby-talk:18009] RUBY C++ Extension again

Hi again
I managed to integrate Ruby into my game engine now, but i have got
the following problem, This should be a simple test C++ Class exported
to ruby:

#define RB_METHOD(func) ((VALUE (*) ())func)
#define RB_FINALIZER(func) ((void (*)(...))func)
	
	class Simple
	{
		public:
		void Log(const char * message ) { LogDebug(("%s ID:
%u",message,m_id)); }
	
		static int id;
		int m_id;

		Simple() {	m_id = id; id ++; LogDebug(("Constructing simple")); } 
		~Simple() { LogDebug(("Destructing simple")); }
	};

	int Simple::id = 0;
	VALUE cFunc;

	static void Simple_Delete(Simple * obj)
	{
		delete obj;
	}

	static VALUE Simple_New(VALUE self)
	{
		Simple * sObj = new Simple();
		return Data_Wrap_Struct(cFunc,0,RB_FINALIZER(Simple_Delete),sObj);
	}
	
	static VALUE Simple_Log(VALUE self,VALUE string)
	{
		Simple * sObj = NULL;
		Data_Get_Struct(self,class Simple,sObj);
		
		sObj->Log(STR2CSTR(string));
		
		return string;
	}

	static void RegisterSimple()
	{
		cFunc = rb_define_class("brutus",rb_cObject);
		rb_define_method(cFunc,"log",RB_METHOD(Simple_Log),1);
		rb_define_singleton_method(cFunc,"new",RB_METHOD(Simple_New),0);
	}
	

But, a call to RegisterSimple crashes my progam....
I am using MSVC60, with teh mswin32-ruby16.dll all my modules are
linked the same as Ruby itself using Multithreaded DLL .... any ideas
on this one ?