Function CopyBitmap

cpp/src/arrow/util/bit_util_benchmark.cc:454–469

template <int64_t OffsetSrc, int64_t OffsetDest = 0>
static void CopyBitmap(benchmark::State& state) {  // NOLINT non-const reference
  const int64_t buffer_size = state.range(0);
  const int64_t bits_size = buffer_size * 8;
  std::shared_ptr<Buffer> buffer = CreateRandomBuffer(buffer_size);

  const uint8_t* src = buffer->data();
  const int64_t length = bits_size - OffsetSrc;

  auto copy = *AllocateEmptyBitmap(length + OffsetDest);

  for (auto _ : state) {
    internal::CopyBitmap(src, OffsetSrc, length, copy->mutable_data(), OffsetDest);
  }

  state.SetBytesProcessed(state.iterations() * buffer_size);
}

static void CopyBitmapWithoutOffset(
    benchmark::State& state) {  // NOLINT non-const reference