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diff --git a/3rdparty/benchmark/src/csv_reporter.cc b/3rdparty/benchmark/src/csv_reporter.cc
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+// Copyright 2015 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "benchmark/reporter.h"
+
+#include <cstdint>
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include "string_util.h"
+#include "walltime.h"
+
+// File format reference: http://edoceo.com/utilitas/csv-file-format.
+
+namespace benchmark {
+
+bool CSVReporter::ReportContext(const Context& context) {
+ std::cerr << "Run on (" << context.num_cpus << " X " << context.mhz_per_cpu
+ << " MHz CPU " << ((context.num_cpus > 1) ? "s" : "") << ")\n";
+
+ std::cerr << LocalDateTimeString() << "\n";
+
+ if (context.cpu_scaling_enabled) {
+ std::cerr << "***WARNING*** CPU scaling is enabled, the benchmark "
+ "real time measurements may be noisy and will incure extra "
+ "overhead.\n";
+ }
+
+#ifndef NDEBUG
+ std::cerr << "***WARNING*** Library was built as DEBUG. Timings may be "
+ "affected.\n";
+#endif
+ std::cout << "name,iterations,real_time,cpu_time,bytes_per_second,"
+ "items_per_second,label\n";
+ return true;
+}
+
+void CSVReporter::ReportRuns(std::vector<Run> const& reports) {
+ if (reports.empty()) {
+ return;
+ }
+
+ std::vector<Run> reports_cp = reports;
+ if (reports.size() >= 2) {
+ Run mean_data;
+ Run stddev_data;
+ BenchmarkReporter::ComputeStats(reports, &mean_data, &stddev_data);
+ reports_cp.push_back(mean_data);
+ reports_cp.push_back(stddev_data);
+ }
+ for (auto it = reports_cp.begin(); it != reports_cp.end(); ++it) {
+ PrintRunData(*it);
+ }
+}
+
+void CSVReporter::PrintRunData(Run const& run) {
+ double const multiplier = 1e9; // nano second multiplier
+ double cpu_time = run.cpu_accumulated_time * multiplier;
+ double real_time = run.real_accumulated_time * multiplier;
+ if (run.iterations != 0) {
+ real_time = real_time / static_cast<double>(run.iterations);
+ cpu_time = cpu_time / static_cast<double>(run.iterations);
+ }
+
+ // Field with embedded double-quote characters must be doubled and the field
+ // delimited with double-quotes.
+ std::string name = run.benchmark_name;
+ ReplaceAll(&name, "\"", "\"\"");
+ std::cout << "\"" << name << "\",";
+
+ std::cout << run.iterations << ",";
+ std::cout << real_time << ",";
+ std::cout << cpu_time << ",";
+
+ if (run.bytes_per_second > 0.0) {
+ std::cout << run.bytes_per_second;
+ }
+ std::cout << ",";
+ if (run.items_per_second > 0.0) {
+ std::cout << run.items_per_second;
+ }
+ std::cout << ",";
+ if (!run.report_label.empty()) {
+ // Field with embedded double-quote characters must be doubled and the field
+ // delimited with double-quotes.
+ std::string label = run.report_label;
+ ReplaceAll(&label, "\"", "\"\"");
+ std::cout << "\"" << label << "\"";
+ }
+ std::cout << '\n';
+}
+
+} // end namespace benchmark