Specifications

Chapter 14. Statement Reference
214
Syntax:
Syntax 1 (Defining a numeric function):
FUNCTION funcname [(dummyparameter
[,dummyparameter...])]
Syntax 2 (Defining a string function):
FUNCTION funcname [(dummyparameter
[,dummyparameter...])][[stringlength]]
Syntax 3 (Existing from the function block prematurely):
EXIT FUNCTION
Syntax 4 (Ending the function block):
END FUNCTION
Syntax 5 (Assigning a returned value):
funcname = generalexpression
Syntax 6 (Calling a function):
funcname[(realparameter[,realparameter...])]
Parameter:
funcname
•For numerics
funcname% Integer function name
funcname Real function name
•For strings
funcname$ String function name
dummyparameter
A non-array integer variable, a non-array real variable, or a non-array string vari-
able.
stringlength
An integer constant having a value from 1 to 255.
realparameter
A numeric or string expression.
User-defined function statement
FUNCTION…END FUNCTION
Names and creates user-defined function FUNCTION.