You're replying to a comment by Chris.

Chris Permalink
April 20, 2010, 12:48

I just stumbled on this today. Even though the original posts were a year ago, I thought I'd clarify that it looks like John Doe was expecting the hack to be: x & ~1 (e.g. specifically unsetting the lowest-order bit). I'm pretty sure he missed the goal being to unset the lowest order _set_ bit.

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