Исправление vM, (текущая версия) :
Точнее, in-out:
A function can assign values to formal arguments. These values are returned to the calling program when the RETURN or END statements are executed in the function subprogram. https://docs.oracle.com/cd/E19957-01/805-4939/6j4m0vn9h/index.html
Исходная версия vM, :
Точнее, [b]in-out[/b]:
[quote]A function [b]can assign values to formal arguments[/b]. These values are [b]returned to the calling program[/b] when the RETURN or END statements are executed in the function subprogram. [/quote] https://docs.oracle.com/cd/E19957-01/805-4939/6j4m0vn9h/index.html