benchmark/test/benchmark_min_time_flag_iters_test.cc
Yury Fedorov bd721f9859
Removing warnings appearing with C++20 / CLang 15 (#1542)
* Removing warnings appearing with C++20 / CLang 15

```
[ 70%] Building CXX object _deps/benchmark-build/test/CMakeFiles/benchmark_min_time_flag_time_test.dir/benchmark_min_time_flag_time_test.cc.o
/home/xxx/cpp/_deps/benchmark-src/test/benchmark_min_time_flag_time_test.cc:31:55: warning: unused parameter 'has_explicit_iters' [-Wunused-parameter]
  virtual void ReportRunsConfig(double min_time, bool has_explicit_iters,
                                                      ^
/home/xxx/cpp/_deps/benchmark-src/test/benchmark_min_time_flag_time_test.cc:32:48: warning: unused parameter 'iters' [-Wunused-parameter]
                                IterationCount iters) BENCHMARK_OVERRIDE {
                                               ^
2 warnings generated.
```

```
[ 70%] Building CXX object _deps/benchmark-build/test/CMakeFiles/benchmark_min_time_flag_iters_test.dir/benchmark_min_time_flag_iters_test.cc.o
/home/xxx/cpp/_deps/benchmark-src/test/benchmark_min_time_flag_iters_test.cc:22:36: warning: implicit conversion loses integer precision: 'const benchmark::IterationCount' (aka 'const long') to 'std::vector<int>::value_type' (aka 'int') [-Wshorten-64-to-32]
    iter_nums_.push_back(report[0].iterations);
               ~~~~~~~~~ ~~~~~~~~~~^~~~~~~~~~
1 warning generated.
```

* Refactoring to get the proper type of collection

* Refactoring to get the proper type of collection

* clang format

* bug fix in main
2023-02-13 11:18:07 +00:00

67 lines
1.7 KiB
C++

#include <cassert>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <string>
#include <vector>
#include "benchmark/benchmark.h"
// Tests that we can specify the number of iterations with
// --benchmark_min_time=<NUM>x.
namespace {
class TestReporter : public benchmark::ConsoleReporter {
public:
virtual bool ReportContext(const Context& context) BENCHMARK_OVERRIDE {
return ConsoleReporter::ReportContext(context);
};
virtual void ReportRuns(const std::vector<Run>& report) BENCHMARK_OVERRIDE {
assert(report.size() == 1);
iter_nums_.push_back(report[0].iterations);
ConsoleReporter::ReportRuns(report);
};
TestReporter() {}
virtual ~TestReporter() {}
const std::vector<benchmark::IterationCount>& GetIters() const {
return iter_nums_;
}
private:
std::vector<benchmark::IterationCount> iter_nums_;
};
} // end namespace
static void BM_MyBench(benchmark::State& state) {
for (auto s : state) {
}
}
BENCHMARK(BM_MyBench);
int main(int argc, char** argv) {
// Make a fake argv and append the new --benchmark_min_time=<foo> to it.
int fake_argc = argc + 1;
const char** fake_argv = new const char*[fake_argc];
for (int i = 0; i < argc; ++i) fake_argv[i] = argv[i];
fake_argv[argc] = "--benchmark_min_time=4x";
benchmark::Initialize(&fake_argc, const_cast<char**>(fake_argv));
TestReporter test_reporter;
const size_t returned_count =
benchmark::RunSpecifiedBenchmarks(&test_reporter, "BM_MyBench");
assert(returned_count == 1);
// Check the executed iters.
const std::vector<benchmark::IterationCount> iters = test_reporter.GetIters();
assert(!iters.empty() && iters[0] == 4);
delete[] fake_argv;
return 0;
}