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
BM_empty(benchmark::State & state)15 void BM_empty(benchmark::State& state) {
16 while (state.KeepRunning()) {
17 volatile benchmark::IterationCount x = state.iterations();
18 ((void)x);
19 }
20 }
21 BENCHMARK(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.
BM_old_arg_range_interface(benchmark::State & state)25 void 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 }
31 BENCHMARK(BM_old_arg_range_interface)->ArgPair(1, 2)->RangePair(5, 5, 6, 6);
32
33 template <class T, class U>
BM_template2(benchmark::State & state)34 void BM_template2(benchmark::State& state) {
35 BM_empty(state);
36 }
37 BENCHMARK_TEMPLATE2(BM_template2, int, long);
38
39 template <class T>
BM_template1(benchmark::State & state)40 void BM_template1(benchmark::State& state) {
41 BM_empty(state);
42 }
43 BENCHMARK_TEMPLATE(BM_template1, long);
44 BENCHMARK_TEMPLATE1(BM_template1, int);
45
46 template <class T>
47 struct BM_Fixture : public ::benchmark::Fixture {
48 };
49
BENCHMARK_TEMPLATE_F(BM_Fixture,BM_template1,long)50 BENCHMARK_TEMPLATE_F(BM_Fixture, BM_template1, long)(benchmark::State& state) {
51 BM_empty(state);
52 }
BENCHMARK_TEMPLATE1_F(BM_Fixture,BM_template2,int)53 BENCHMARK_TEMPLATE1_F(BM_Fixture, BM_template2, int)(benchmark::State& state) {
54 BM_empty(state);
55 }
56
BM_counters(benchmark::State & state)57 void BM_counters(benchmark::State& state) {
58 BM_empty(state);
59 state.counters["Foo"] = 2;
60 }
61 BENCHMARK(BM_counters);
62
63 BENCHMARK_MAIN();
64