Function VisitBits

cpp/src/arrow/util/bitmap_visit.h:32–39

// GenerateBits.
template <class Visitor>
void VisitBits(const uint8_t* bitmap, int64_t start_offset, int64_t length,
               Visitor&& visit) {
  BitmapReader reader(bitmap, start_offset, length);
  for (int64_t index = 0; index < length; ++index) {
    visit(reader.IsSet());
    reader.Next();
  }
}

// Like VisitBits(), but unrolls its main loop for better performance.
template <class Visitor>