const func integer: sum (in array integer: intElems) is func
  result
    var integer: sum is 0;
  local
    var integer: element is 0;
  begin
    for element range intElems do
      sum +:= element;
    end for;
  end func;

s := sum([] (1, 2, 3)); # Use an aggregate to generate an array.
t := sum([] (2, 3, 5, 7));