/*
     * Initialize bytes to start of the object's string rep if the caller
     * didn't pass anything else.
     */

    if (bytes == NULL) {
	if (interp == NULL && endPtrPtr == NULL) {
	    if (TclHasIntRep(objPtr, &tclDictType)) {
		/* A dict can never be a (single) number */
		return TCL_ERROR;
	    }
	    if (TclHasIntRep(objPtr, &tclListType)) {
		int length;
		/* A list can only be a (single) number if its length == 1 */
		TclListObjLength(NULL, objPtr, &length);
		if (length != 1) {
		    return TCL_ERROR;
		}
	    }