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Message: [QUOTE="Geoff, post: 4214986"] This looks suspiciously like De Morgan's theorem but the correct expression of it would have been: !(!a || !b || !c) Why is everyone changing a logical operator into a bitwise operator for this functionality without consideration for the values of the operands? If we take the OP at face value and say, "how to short-circuit the evaluation" of: if(a && b && c) { /* Do stuff */ } It seems to me the correct answer is: { /* Do stuff */ } Because if multiple threads or parallel processors are expected to operate unconditionally on chunks of data with the same chunk of code regardless of the values of three input variables then there is no reason to initially evaluate the variables because they won't influence the order of execution. [/QUOTE]