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Bit = {}
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function Bit.bit(p)
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return 2 ^ p
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end
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function Bit.hasBit(x, p)
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return x % (p + p) >= p
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end
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function Bit.setbit(x, p)
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return Bit.hasBit(x, p) and x or x + p
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end
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function Bit.clearbit(x, p)
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return Bit.hasBit(x, p) and x - p or x
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end |
