Method count

ext/include/llvm/ADT/SparseBitVector.h:799–807

  }

  unsigned count() const {
    unsigned BitCount = 0;
    for (ElementListConstIter Iter = Elements.begin();
         Iter != Elements.end();
         ++Iter)
      BitCount += Iter->count();

    return BitCount;
  }

  iterator begin() const {
    return iterator(this);