benchmark.h
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	/*
	* Copyright (C) 2012 The Android Open Source Project
	*
	* 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 <stddef.h>
	#include <stdint.h>
	#include <vector>

	namespace testing {
	class Benchmark {
	public:
	Benchmark(const char* name, void (*fn)(int)) {
	Register(name, fn, NULL);
	}
	Benchmark(const char* name, void (*fn_range)(int, int)) {
	Register(name, NULL, fn_range);
	}
	Benchmark* Arg(int x);
	Benchmark* Range(int lo, int hi);
	const char* Name();
	bool ShouldRun(int argc, char* argv[]);
	void Run();
	private:
	const char* name_;
	void (*fn_)(int);
	void (*fn_range_)(int, int);
	std::vector<int> args_;
	void Register(const char* name, void (fn)(int), void (fn_range)(int, int));
	void RunRepeatedlyWithArg(int iterations, int arg);
	void RunWithArg(int arg);
	};
	} // namespace testing
	void SetBenchmarkFlopsProcessed(int64_t);
	void StopBenchmarkTiming();
	void StartBenchmarkTiming();
	#define BENCHMARK(f) \
	static ::testing::Benchmark* _benchmark_##f __attribute__((unused)) = \
	(new ::testing::Benchmark(#f, f))