[josefx]

As far as I understood the document Google could have argued to have individual members of the class action dismissed based on qualifications after discovery concluded. The "in person interview" was just the initial requirement to join the class action and not a guarantee that they would remain part of it. The article I linked already mentioned 269 and that dropped to 227 in the bloomberg article linked by the guardian, so around a sixt no longer qualified for one reason or the other.

> leaves all the zero bits alone, changes all the one bits into zero bits, and returns the result.

Unless you have a weird integer implementation there is no way to avoid touching individual bits. So if( x ) x = 0; return x; is the best I can come up with.

[dmitrygr]

The best answer is just return 0

[josefx]

With the 20 second duration you mention in a different comment that makes more sense. I think I spend more time just overthinking on the requirments.