VALUE_IN

 
SYNTAX:
 
FUNCTION VALUE IN ( C       :  AGGREGATE OF GENERIC:GEN;
                                         V       :  GENERIC:GEN )  : LOGICAL;
 
The value in function returns a logical value depending on whether or not a particular value
is a member of an aggregation.
Parameters :
 C is an aggregation of any type.
 V is an expression that is assignment compatible with the base type of C.