next up previous contents index
Next: Arithmetic constraints Up: Constraints Previous: Introduction

Domain constraints

Domain constraints take the form of:

       A in D
where A is an attribute variable and D specifies a domain which is either an integer interval l..u or a list of values of some type in the form {}. The type of A and that of D must be the same.  



Neng-Fa ZHOU
Sat Apr 18 16:14:29 JST 1998