utility/tests/HashPair_benchmark.cpp

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 **/

#include <functional>
#include <utility>

#include "utility/HashPair.hpp"

#include "benchmark/benchmark.h"

static void BM_HashDouble(benchmark::State &state) {  // NOLINT(runtime/references)
  struct std::hash<double> h;
  double value = 0.42;
  while (state.KeepRunning()) {
    h(value);
  }
}
BENCHMARK(BM_HashDouble);

static void BM_HashPairDoubleDouble(benchmark::State &state) {  // NOLINT(runtime/references)
  struct std::hash<std::pair<double, double>> h;
  std::pair<double, double> pair = std::make_pair(0.42, 0.42);
  while (state.KeepRunning()) {
    h(pair);
  }
}
BENCHMARK(BM_HashPairDoubleDouble);

int main(int argc, char **argv) {
  benchmark::Initialize(&argc, argv);
  benchmark::RunSpecifiedBenchmarks();
  return 0;
}