/
	double doubleValue;	/*   - a double-precision floating value. */
	void *otherValuePtr;	/*   - another, type-specific value,
	                       not used internally any more. */
	Tcl_WideInt wideValue;	/*   - a long long value. */
	struct {		/*   - internal rep as two pointers.
				 *     the main use of which is a bignum's
				 *     tightly packed fields, where the alloc,
				 *     used and signum flags are packed into
				 *     ptr2 with everything else hung off ptr1. */
	    void *ptr1;
	    void *ptr2;
	} twoPtrValue;
	struct {		/*   - internal rep as a pointer and a long,
	                       not used internally any more. */
	    void *ptr;
	    unsigned long value;
	} ptrAndLongRep;
    } internalRep;
} Tcl_Obj;

/*
 * Macros to increment and decrement a Tcl_Obj's reference count, and to test
 * whether an object is shared (i.e. has reference count > 1). Note: clients
 * should use Tcl_DecrRefCount() when they are finished using an object, and
 * should never call TclFreeObj() directly. TclFreeObj() is only defined and
 * made public in tcl.h to support Tcl_DecrRefCount's macro definition.
 */

void		Tcl_IncrRefCount(Tcl_Obj *objPtr);
void		Tcl_DecrRefCount(Tcl_Obj *objPtr);
int		Tcl_IsShared(Tcl_Obj *objPtr);