checkpnt.h

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#ifndef checkpoint_h
#define checkpoint_h

#define CKPT(arg1,arg2) if (!arg1.xdr(arg2)) { return false;}

class Checkpoint {
public:
    Checkpoint();
    virtual ~Checkpoint();
        
    static Checkpoint* instance();
    
    bool out(); // true means to file, false means from file
    bool xdr(long&);
    bool xdr(Object*&);
};

#endif