Function MergeLevelHistogram

cpp/src/parquet/size_statistics.cc:36–40

namespace {

void MergeLevelHistogram(std::span<int64_t> histogram, std::span<const int64_t> other) {
  ARROW_DCHECK_EQ(histogram.size(), other.size());
  std::transform(histogram.begin(), histogram.end(), other.begin(), histogram.begin(),
                 std::plus<>());
}

}  // namespace