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Celero - A C++ Benchmark Authoring Library

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31 Oct 2013Apache7 min read 47.5K   764   49  
This article discusses how to implement and use a template-based C++ benchmarking library.
#ifndef _CELERO_UTILITIES_H_
#define _CELERO_UTILITIES_H_

namespace celero
{
	///
	/// \func DoNotOptimizeAway
	///
	/// From Andrei Alexandrescu
	///
	template<class T> void DoNotOptimizeAway(T&& datum) 
	{
		#ifdef WIN32
		if(_getpid() == 1) 
		#else
		if(getpid() == 1) 
		#endif
		{
			const void* p = &datum;
			putchar(*static_cast<const char*>(p));
		}
	}

	///
	/// Quick definition of the number of microseconds per second.
	///
	const auto UsPerSec(1000000.0);

	///
	/// Define the number of samples to default to for a good stastical sample when automatically timing tests.
	///
	const auto StatisticalSample(30);
}

#endif

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License

This article, along with any associated source code and files, is licensed under The Apache License, Version 2.0


Written By
Team Leader
United States United States
John Farrier is a professional C++ software engineer that specializes in modeling, simulation, and architecture development.

Specialties:

LVC Modeling & Simulation
Software Engineering, C++11, C++98, C, C#, FORTRAN, Python
Software Performance Optimization
Software Requirements Development
Technical Project and Team Leadership

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