Returning a class

Hello! I wanted to write code which will handle such operations in the script: CSomeClass class; class = Master.FindSub(...); I don't know if I did that properly, because I'm receiving some not very pleasant errors. Here is what I did: Master class:

class CMaster
{
public:
	CMaster(){};
	~CMaster(){};

	CSomeClass FindSub( int index )
	{
		CSomeClass cl;
		return cl;
	}
};

Here I register CSomeClass:

	r = ScriptEngine->RegisterObjectType("CSomeClass", sizeof(CSomeClass), asOBJ_CLASS_CDA);assert(r>=0);
	r=ScriptEngine->RegisterObjectBehaviour("CSomeClass", asBEHAVE_CONSTRUCT, "void f()", asFUNCTIONPR(Constructor, (CSomeClass*), void), asCALL_CDECL_OBJLAST); assert(r >= 0);
	r=ScriptEngine->RegisterObjectBehaviour("CSomeClass", asBEHAVE_DESTRUCT, "void f()", asFUNCTIONPR(Destructor, (CSomeClass&), void), asCALL_CDECL_OBJLAST); assert(r >= 0);
	r=ScriptEngine->RegisterObjectBehaviour("CSomeClass", asBEHAVE_ADDREF, "void f()", asMETHOD(CSomeClass, AddRef), asCALL_THISCALL); assert(r >= 0);
	r=ScriptEngine->RegisterObjectBehaviour("CSomeClass", asBEHAVE_RELEASE, "void f()", asMETHOD(CSomeClass, Release), asCALL_THISCALL); assert(r >= 0);

Here is it's declaration:

class CSomeClass
{
public:	
	CSomeClass(): refcount(1) {};
	~CSomeClass()
	{
	}
	void AddRef(){refcount++;}
	void Release(){ if(--refcount == 0) delete this;}
private:
	int refcount;
};

Here I register the CMaster class:

	r = ScriptEngine->RegisterObjectType("CMaster",sizeof(CMaster), asCALL_CDECL);assert(r >= 0);
	r = ScriptEngine->RegisterGlobalProperty("CMaster Master", (void*)&Master); assert(r>=0);
	r = ScriptEngine->RegisterObjectMethod("CMaster", "CSomeClass FindSub(int index)", asMETHOD(CMaster,FindSub), asCALL_THISCALL);assert(r >= 0);

Then when I perform: CSomeClass class; class = Master.FindSub(...); I get some heap allocation errors. P.S. I hope I remembered to put everything that is of any use here. Regards, Black Dot