TBitSet = seq[ElemType]

ElemSize = 8

proc bitSetIn(x: TBitSet; e: BiggestInt): bool {...}{.raises: [], tags: [].}

proc bitSetIncl(x: var TBitSet; elem: BiggestInt) {...}{.raises: [], tags: [].}

proc bitSetExcl(x: var TBitSet; elem: BiggestInt) {...}{.raises: [], tags: [].}

proc bitSetInit(b: var TBitSet; length: int) {...}{.raises: [], tags: [].}

proc bitSetUnion(x: var TBitSet; y: TBitSet) {...}{.raises: [], tags: [].}

proc bitSetDiff(x: var TBitSet; y: TBitSet) {...}{.raises: [], tags: [].}

proc bitSetSymDiff(x: var TBitSet; y: TBitSet) {...}{.raises: [], tags: [].}

proc bitSetIntersect(x: var TBitSet; y: TBitSet) {...}{.raises: [], tags: [].}

proc bitSetEquals(x, y: TBitSet): bool {...}{.raises: [], tags: [].}

proc bitSetContains(x, y: TBitSet): bool {...}{.raises: [], tags: [].}

proc bitSetCard(x: TBitSet): BiggestInt {...}{.raises: [], tags: [].}