25.5.1 Defining a function with a variable number of arguments
The args
command returns the list of arguments of a function.
-
args takes no arguments.
- args (or args(NULL)) returns a list of the
arguments of the current function, starting with the name of the
function at index 0.
Note that args() will not work, the command must be called as
args or args(NULL). You can also use
(args)[0] to get the name of the function and
(args)[1] to get the first argument, etc., but the
parentheses about args is mandatory.
Examples
| testargs():={ local y; y:=args; return y[1]; }:;
testargs(12,5) |
As another example, enter the function:
| total():={
local s,a;
a:=args;
s:=0;
for (k:=1;k<size(a);k++) {
s:=s+a[k];
}
return s;
} |
then: