Compute the bitwise NOT of a and then AND with b, and return 1 if the result is zero, otherwise return 0. In other words, test if all bits masked by b are also 1 in a.
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Compute the bitwise NOT of a and then AND with b, and return 1 if the result is zero, otherwise return 0. In other words, test if all bits masked by b are also 1 in a.