"it shall not be used as the operand of a unary * operator that is evaluated" he doesn't use the * operator on it, he just calculates its position. If he were

"it shall not be used as the operand of a unary * operator that is evaluated" he doesn't use the * operator on it, he just calculates its position. If he were to access it (ie, use it with *) then that would be breaking the rule