SET UDFPARMS

Purpose

Specify whether parameters are passed to a user-defined function by value or by reference

Syntax

SET UDFPARMS TO VALUE | REFERENCE

See Also

DO, FUNCTION, PARAMETERS, SET PROCEDURE

Description

By default, parameters are passed to UDFs by value. By setting UDFPARMS to REFERENCE, parameters will be passed to the UDF by reference. Variables that are passed by reference can have their values changed in the UDF, and the new values will be available at the scope where the variables were defined.

Example

set udfparms to value
count = 10
// Call a UDF that changes the value of count to 30
changecount(count)
? count
        10
set udfparms to reference
count = 10
// Call a UDF that changes the value of count to 30
changecount(count)
? count
        30

Products

Recital Server, Recital