Function UnaryOp

cpp/src/arrow/util/decimal_benchmark.cc:246–263

}

static void UnaryOp(benchmark::State& state) {  // NOLINT non-const reference
  std::vector<BasicDecimal128> v;
  for (int x = 0; x < kValueSize; x++) {
    v.emplace_back(100 + x, 100 + x);
  }

  static_assert(kValueSize % 2 == 0,
                "kValueSize needs to be a multiple of 2 to avoid out-of-bounds accesses");
  for (auto _ : state) {
    for (int x = 0; x < kValueSize; x += 2) {
      auto abs = v[x].Abs();
      benchmark::DoNotOptimize(abs);
      auto negate = v[x + 1].Negate();
      benchmark::DoNotOptimize(negate);
    }
  }
  state.SetItemsProcessed(state.iterations() * kValueSize);
}

static void Constants(benchmark::State& state) {  // NOLINT non-const reference
  BasicDecimal128 d1(-546, 123), d2(-123, 456);