---

swobject.h

#ifndef SWOBJECT_H
#define SWOBJECT_H

#include <utilfuns.h>
#if !defined(__GNUC__) && !defined(_WIN32_WCE)
#else
#include <unixstr.h>
#endif

#include <defs.h>
#include <string.h>

#define SWDYNAMIC_CAST(className, object) (className *)((object)?((object->getClass()->isAssignableFrom(#className))?object:0):0)

class SWDLLEXPORT SWClass {
private:
        const char **descends;

public:
        SWClass(const char **descends) {
                this->descends = descends;
        }

        bool isAssignableFrom(const char *className) const {
                for (int i = 0; descends[i]; i++) {
                        if (!stricmp(descends[i], className))
                                return true;
                }
                return false;
        }
};

class SWObject {
protected:
        SWClass * myclass;
     
public:
        const SWClass *getClass () const {
                return myclass;
        }
};

#endif

---