cygwin source question

Dave Korn dave.korn@artimi.com
Sun Jan 21 16:29:00 GMT 2007


On 21 January 2007 14:38, Christopher Layne wrote:

> I notice in some places, there are double-negates, like:
> 
> me->read_ready |= ret || !!(events & (FD_READ | FD_ACCEPT | FD_CLOSE));
> 
> What's the rationale for these? To enforce either a 0 or 1, to be directly
> in line with boolean, rather than a zero or non-zero result?

  It's a standard C idiom for that, yeh, it normalizes zero/non-zero into 0/1.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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