mirror of
https://github.com/google/benchmark.git
synced 2024-12-27 04:50:19 +08:00
bd721f9859
* 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
91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
#include <cassert>
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#include <climits>
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#include <cmath>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "benchmark/benchmark.h"
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// Tests that we can specify the min time with
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// --benchmark_min_time=<NUM> (no suffix needed) OR
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// --benchmark_min_time=<NUM>s
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namespace {
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// This is from benchmark.h
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typedef int64_t IterationCount;
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class TestReporter : public benchmark::ConsoleReporter {
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public:
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virtual bool ReportContext(const Context& context) BENCHMARK_OVERRIDE {
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return ConsoleReporter::ReportContext(context);
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};
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virtual void ReportRuns(const std::vector<Run>& report) BENCHMARK_OVERRIDE {
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assert(report.size() == 1);
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ConsoleReporter::ReportRuns(report);
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};
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virtual void ReportRunsConfig(double min_time, bool /* has_explicit_iters */,
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IterationCount /* iters */) BENCHMARK_OVERRIDE {
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min_times_.push_back(min_time);
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}
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TestReporter() {}
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virtual ~TestReporter() {}
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const std::vector<double>& GetMinTimes() const { return min_times_; }
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private:
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std::vector<double> min_times_;
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};
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bool AlmostEqual(double a, double b) {
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return std::fabs(a - b) < std::numeric_limits<double>::epsilon();
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}
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void DoTestHelper(int* argc, const char** argv, double expected) {
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benchmark::Initialize(argc, const_cast<char**>(argv));
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TestReporter test_reporter;
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const size_t returned_count =
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benchmark::RunSpecifiedBenchmarks(&test_reporter, "BM_MyBench");
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assert(returned_count == 1);
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// Check the min_time
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const std::vector<double>& min_times = test_reporter.GetMinTimes();
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assert(!min_times.empty() && AlmostEqual(min_times[0], expected));
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}
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} // end namespace
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static void BM_MyBench(benchmark::State& state) {
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for (auto s : state) {
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}
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}
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BENCHMARK(BM_MyBench);
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int main(int argc, char** argv) {
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// Make a fake argv and append the new --benchmark_min_time=<foo> to it.
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int fake_argc = argc + 1;
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const char** fake_argv = new const char*[fake_argc];
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for (int i = 0; i < argc; ++i) fake_argv[i] = argv[i];
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const char* no_suffix = "--benchmark_min_time=4";
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const char* with_suffix = "--benchmark_min_time=4.0s";
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double expected = 4.0;
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fake_argv[argc] = no_suffix;
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DoTestHelper(&fake_argc, fake_argv, expected);
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fake_argv[argc] = with_suffix;
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DoTestHelper(&fake_argc, fake_argv, expected);
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delete[] fake_argv;
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return 0;
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}
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