n := 0
	wasSpace := 1
	// setBits is used to track which bits are set in the bytes of s.
	setBits := uint8(0)
	for i := 0; i < len(s); i++ {
		r := s[i]
		setBits |= r
		isSpace := int(asciiSpace[r])
		n += wasSpace & ^isSpace
		wasSpace = isSpace
	}

	if setBits >= utf8.RuneSelf {
		// Some runes in the input slice are not ASCII.

    }

    @Override
    public Iterator<Set<E>> iterator() {
      return new AbstractIndexedListIterator<Set<E>>(size()) {
        @Override
        protected Set<E> get(int setBits) {
          return new SubSet<>(inputSet, setBits);
        }
      };
    }

    @Override
    public boolean contains(@Nullable Object obj) {
      if (obj instanceof Set) {
        Set<?> set = (Set<?>) obj;

:= n.Bits() x.reset(len(limbs)) for i := range limbs { x.limbs[i] = uint(limbs[i]) } return x } func (n *Nat) asBig() *big.Int { bits := make([]big.Word, len(n.limbs)) for i := range n.limbs { bits[i] = big.Word(n.limbs[i]) } return new(big.Int).SetBits(bits) } func (n *Nat) String() string { var limbs []string for i := range n.limbs { limbs = append(limbs, fmt.Sprintf("%016X", n.limbs[len(n.limbs)-1-i])) } return "{" + strings.Join(limbs, " ") + "}" } // Generate generates an even nat. It's used...

:= n.Bits() x.reset(len(limbs)) for i := range limbs { x.limbs[i] = uint(limbs[i]) } return x } func (n *Nat) asBig() *big.Int { bits := make([]big.Word, len(n.limbs)) for i := range n.limbs { bits[i] = big.Word(n.limbs[i]) } return new(big.Int).SetBits(bits) } func (n *Nat) String() string { var limbs []string for i := range n.limbs { limbs = append(limbs, fmt.Sprintf("%016X", n.limbs[len(n.limbs)-1-i])) } return "{" + strings.Join(limbs, " ") + "}" } // Generate generates an even nat. It's used...

pkg math/big, method (*Int) Scan(fmt.ScanState, int32) error
pkg math/big, method (*Int) Set(*Int) *Int
pkg math/big, method (*Int) SetBit(*Int, int, uint) *Int
pkg math/big, method (*Int) SetBits([]Word) *Int
pkg math/big, method (*Int) SetBytes([]uint8) *Int
pkg math/big, method (*Int) SetInt64(int64) *Int
pkg math/big, method (*Int) SetString(string, int) (*Int, bool)
pkg math/big, method (*Int) Sign() int