UniBasic Commands Reference - Rocket Software

DEFFUN
Syntax
DEFFUN function.name [([MAT] arg.1[,[MAT]arg.2]...)]
[CALLING catalog.name]
Description
The UniBasic DEFFUN command declares a user-written function, making the
function available in a UniBasic program. You must declare the function before you
can use it in a program.
Note: You also must define the function with the UniBasic FUNCTION command in
a separately cataloged file before you can call it.
Function Naming
The function name used in the DEFFUN statement must be the same as the name of
the cataloged file that contains the FUNCTION statement. Either of the following
statements declares the function cataloged under the name func.name:
1-197 UniBasic Commands Reference
DEFFUN func.name(arg, arg,...)
DEFFUN name(arg, arg,...) CALLING func.name
Within the calling program, the name used in the DEFFUN statement and the name
used to call the function must be the same. This does not need to be the same name
as the cataloged program file or the name used in the FUNCTION statement.