UniBasic Commands Reference - Rocket Software

Parameters
The following table describes each parameter of the syntax.
Parameter Description
function.name Specifies the name of the function (for documentation purposes
only). It need not be the same as the name used to call the
function.
You must include this function’s cataloged file name in the
DEFFUN statement in the calling program.
(MAT arg.1 ,MAT
arg.2...)
Examples
Specifies the arguments to be passed from the calling program.
Arguments must be enclosed in parentheses and separated by
commas. Precede an argument with MAT to indicate that the
argument is an array. Up to 254 arguments can be passed.
RETURN var Returns control to the calling program. Can pass back an
argument.
FUNCTION Parameters
The following function performs calculations on a dimensioned array, returning
values in the function arguments and return value, r. The name of the cataloged file
that contains this function definition is yourfunc. This name must be used in the
DEFFUN statement in the calling program. Notice that the function definition uses
yet a different name (anotherfunc). The name anotherfunc is not referenced
anywhere.
FUNCTION anotherfunc(a, MAT b, c) ;* Start function
definition.
DIM b(-1) ;* Declare array.
r = 0 ;* Initialize return value.
c = 1 ;* Initialize value passed
back.
FOR i = 1 TO a ;* To the upper bound passed
in:
r += b(i) ;* Sum array members.
c *= b(i) ;* Multiply array members.
NEXT i
RETURN r ;* Return value.
FUNCTION 1-279