Function num_chunks

cpp/src/arrow/chunk_resolver.h:108–108

  int64_t logical_array_length() const { return offsets_.back(); }
  int32_t num_chunks() const { return static_cast<int32_t>(offsets_.size() - 1); }

  int64_t chunk_length(int64_t chunk_index) const {
    return offsets_[chunk_index + 1] - offsets_[chunk_index];