#include #include #include #include #include static constexpr frozen::set Keywords{ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62 }; static auto const* volatile Some = &Keywords; static void BM_IntInFzSet(benchmark::State& state) { for (auto _ : state) { for(auto kw : *Some) { volatile bool status = Keywords.count(kw); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntInFzSet); static const std::set Keywords_(Keywords.begin(), Keywords.end()); static void BM_IntInStdSet(benchmark::State& state) { for (auto _ : state) { for(auto kw : *Some) { volatile bool status = Keywords_.count(kw); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntInStdSet); static const std::array Keywords__{{ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62 }}; static void BM_IntInStdArray(benchmark::State& state) { for (auto _ : state) { for(auto kw : *Some) { volatile bool status = std::find(Keywords__.begin(), Keywords__.end(), kw) != Keywords__.end(); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntInStdArray); static const int SomeInts[32] = { 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63 }; static auto const * volatile SomeIntsPtr = &SomeInts; static void BM_IntNotInFzSet(benchmark::State& state) { for (auto _ : state) { for(auto kw : *SomeIntsPtr) { volatile bool status = Keywords.count(kw); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntNotInFzSet); static void BM_IntNotInStdSet(benchmark::State& state) { for (auto _ : state) { for(auto kw : *SomeIntsPtr) { volatile bool status = Keywords_.count(kw); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntNotInStdSet); static void BM_IntNotInStdArray(benchmark::State& state) { for (auto _ : state) { for(auto kw : *SomeIntsPtr) { volatile bool status = std::find(Keywords__.begin(), Keywords__.end(), kw) != Keywords__.end(); benchmark::DoNotOptimize(status); } } } BENCHMARK(BM_IntNotInStdArray);