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On Mon, 7 May 2001, J . A . Magallon wrote: > > On 05.07 Helge Hafting wrote: > > > > !0 is 1. !(anything else) is 0. It is zero and one, not > > zero and "non-zero". So a !! construction gives zero if you have > > zero, and one if you had anything else. There's no doubt about it. > > > > > Isn't this asking for trouble with the optimizer ? It could kill both > !!. Using that is like trusting on a certain struct padding-alignment. > It isn't, or rather it can't. Because !!x is not x unless x is one or zero. Anuradha - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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