Function std_copy

cpp/src/arrow/util/range_benchmark.cc:55–63

For comparison: pure copy without any changes

// For comparison: pure copy without any changes
void std_copy(benchmark::State& state) {
  auto source = generate_junk(kSize);
  std::vector<int> target(kSize);

  for (auto _ : state) {
    std::copy(source.begin(), source.end(), target.begin());
  }
  state.SetItemsProcessed(state.iterations() * kSize);
}

BENCHMARK(std_copy);