On 31 août 2015, at 06:11, Richard A. O'Keefe
Sorry, cliekd the wrong button. If you had troubled to read the Wikipedia article with care, you'd have seen this right at the beginning:
In computer science, a function or expression is VVVVVVVVVVVVVVVVVVVVVVVV said to have a side effect if, in addition to returning ^^^^^^^^^^^^^^^^^^^^^^^^ a value, it also modifies some state or has an observable interaction with calling functions or the outside world.
You have a function, whose purported effect is to return a value. "IN ADDITION TO" that, it has "A SUBSIDIARY CONSEQUENCE", "A SECONDARY RESULT".
In my opinion, with such interpretation there can be no documented side effects: if some effect is documented, it is purported (an probably used by someone), so not secondary. Alexey.