Method set

ppcc/adlib/bitset.h:84–87

    return new BitSet(this);
  }
  void set(Int i) {
    require(i < _bits, "index out of range");
    _data[index(i)] |= bit(i);
  }
  void clear(Int i) {
    require(i < _bits, "index out of range");
    _data[index(i)] &= ~bit(i);