Extracted from Pike v7.6 release 93 at 2006-10-04.
pike.ida.liu.se
[Top]
ADT
ADT.Relation
ADT.Relation.Binary

Method ADT.Relation.Binary()->`<=()


Method `<=

mixed `<=(object rel)

Description

The expression `rel1 <= rel2' returns true if every relation entry in rel1 is also present in rel2.