>>Right, I understand. My point is, that the code in this article seems to be incorrect.
>
>
>I posted a comment to the blog post asking him to explain it. We'll see if he will.
>

In my comment above I meant WiKi's article, not Sergey's. I added my case to that article.

Will see how Sergey explains what he meant in his article by reference to OS().

BTW, I don't see your comment - are they moderated?