#ifndef __Cons_h
#define __Cons_h
#include "SchemeObject.h"

@interface Cons: SchemeObject
{
    SchemeObject *car, *cdr;
}
+ (id) newWithCar: (SchemeObject *) a cdr: (SchemeObject *) d;
- (id) initWithCar: (SchemeObject *) a cdr: (SchemeObject *) d;
- (SchemeObject *) car;
- (void) car: (SchemeObject *) a;
- (SchemeObject *) cdr;
- (void) cdr: (SchemeObject *) d;
@end

@extern Cons *cons (SchemeObject *car, SchemeObject *cdr);
@extern BOOL isList (SchemeObject *ls);
@extern int length (SchemeObject *foo);

#endif //__Cons_h
