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 11#ifdef BENCHMARK_HAS_CXX11 12#error C++11 or greater detected by the library. BENCHMARK_HAS_CXX11 is defined. 13#endif 14 15void BM_empty(benchmark::State& state) { 16 while (state.KeepRunning()) { 17 volatile std::size_t x = state.iterations(); 18 ((void)x); 19 } 20} 21BENCHMARK(BM_empty); 22 23// The new C++11 interface for args/ranges requires initializer list support. 24// Therefore we provide the old interface to support C++03. 25void BM_old_arg_range_interface(benchmark::State& state) { 26 assert((state.range(0) == 1 && state.range(1) == 2) || 27 (state.range(0) == 5 && state.range(1) == 6)); 28 while (state.KeepRunning()) { 29 } 30} 31BENCHMARK(BM_old_arg_range_interface)->ArgPair(1, 2)->RangePair(5, 5, 6, 6); 32 33template <class T, class U> 34void BM_template2(benchmark::State& state) { 35 BM_empty(state); 36} 37BENCHMARK_TEMPLATE2(BM_template2, int, long); 38 39template <class T> 40void BM_template1(benchmark::State& state) { 41 BM_empty(state); 42} 43BENCHMARK_TEMPLATE(BM_template1, long); 44BENCHMARK_TEMPLATE1(BM_template1, int); 45 46template <class T> 47struct BM_Fixture : public ::benchmark::Fixture { 48}; 49 50BENCHMARK_TEMPLATE_F(BM_Fixture, BM_template1, long)(benchmark::State& state) { 51 BM_empty(state); 52} 53BENCHMARK_TEMPLATE1_F(BM_Fixture, BM_template2, int)(benchmark::State& state) { 54 BM_empty(state); 55} 56 57void BM_counters(benchmark::State& state) { 58 BM_empty(state); 59 state.counters["Foo"] = 2; 60} 61BENCHMARK(BM_counters); 62 63BENCHMARK_MAIN(); 64