1 #undef NDEBUG 2 #include <cassert> 3 #include <cstddef> 4 5 #include "benchmark/benchmark.h" 6 7 #if __cplusplus >= 201103L 8 #error C++11 or greater detected. Should be C++03. 9 #endif 10 BM_empty(benchmark::State & state)11void BM_empty(benchmark::State& state) { 12 while (state.KeepRunning()) { 13 volatile std::size_t x = state.iterations(); 14 ((void)x); 15 } 16 } 17 BENCHMARK(BM_empty); 18 19 // The new C++11 interface for args/ranges requires initializer list support. 20 // Therefore we provide the old interface to support C++03. BM_old_arg_range_interface(benchmark::State & state)21void BM_old_arg_range_interface(benchmark::State& state) { 22 assert((state.range(0) == 1 && state.range(1) == 2) || 23 (state.range(0) == 5 && state.range(1) == 6)); 24 while (state.KeepRunning()) { 25 } 26 } 27 BENCHMARK(BM_old_arg_range_interface)->ArgPair(1, 2)->RangePair(5, 5, 6, 6); 28 29 template <class T, class U> BM_template2(benchmark::State & state)30void BM_template2(benchmark::State& state) { 31 BM_empty(state); 32 } 33 BENCHMARK_TEMPLATE2(BM_template2, int, long); 34 35 template <class T> BM_template1(benchmark::State & state)36void BM_template1(benchmark::State& state) { 37 BM_empty(state); 38 } 39 BENCHMARK_TEMPLATE(BM_template1, long); 40 BENCHMARK_TEMPLATE1(BM_template1, int); 41 BM_counters(benchmark::State & state)42void BM_counters(benchmark::State& state) { 43 BM_empty(state); 44 state.counters["Foo"] = 2; 45 } 46 BENCHMARK(BM_counters); 47 48 BENCHMARK_MAIN() 49