Functions
const int	roundToNearestInt (const double input)
const size_t	roundToNearestSizeT (const double input)
const char *	todaysDateAndTime ()
const std::string	size_t_to_s (size_t num)
void	openFile (std::fstream &fs, const std::string &filename, const std::fstream::openmode openmode)
const size_t	countDataPoints (std::fstream &fs)
	Find the number of numeric data points in file.
const bool	fileExists (const std::string &filename)
const bool	roughlyEqual (const double a, const double b, const double tolerance)
	Compares 2 doubles. Are they within (a * tolerance) of each other?
const double &	highest (const double &a, const double &b)
const double &	lowest (const double &a, const double &b)
const size_t &	largest (const size_t &a, const size_t &b)
const size_t &	smallest (const size_t &a, const size_t &b)
const bool	within (const double a, const double b, const double diff)
const bool	between (const double bound1, const double bound2, const double sample)
const std::string	secondsToTime (const size_t seconds)
const bool	sameSign (const double &a, const double &b)
	Returns true if `a` and `b` are the same sign. Zero is assumed to be positive.
void	fatalError (const std::string &message)

Function Documentation

const bool Utils::between	(	const double	bound1,
		const double	bound2,
		const double	sample
	)

Returns:: true if sample is between bound1 and bound2.

Definition at line 185 of file Utils.cpp.

Referenced by AggregateData::findSpike(), AggregateData::findTime(), and within().

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const size_t Utils::countDataPoints ( std::fstream & fs )

Find the number of numeric data points in file.

Returns:: number of data points.

Definition at line 74 of file Utils.cpp.

Referenced by AggregateData::loadCurrentCostData(), and Array< Sample_t >::loadData().

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void Utils::fatalError ( const std::string & message )

Definition at line 229 of file Utils.cpp.

Referenced by PowerStateGraph::disaggregate(), Array< Sample_t >::dumpToFile(), AggregateData::findTime(), AggregateData::loadCurrentCostData(), Device::loadSignatures(), main(), openFile(), and Array< Sample_t >::setSize().

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const bool Utils::fileExists ( const std::string & filename )

Returns:: true if 'filename' exists

Definition at line 98 of file Utils.cpp.

Referenced by AggregateData::loadCurrentCostData(), Device::loadSignatures(), and GNUplot::plot().

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const double & Utils::highest	(	const double &	a,
		const double &	b
	)

Returns:: the larger of the two values

Definition at line 119 of file Utils.cpp.

Referenced by PowerStateGraph::mostSimilarVertex(), and PowerStateGraph::rejectSpike().

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const size_t & Utils::largest	(	const size_t &	a,
		const size_t &	b
	)

Returns:: the larger of the two values

Definition at line 144 of file Utils.cpp.

const double & Utils::lowest	(	const double &	a,
		const double &	b
	)

Definition at line 130 of file Utils.cpp.

void Utils::openFile	(	std::fstream &	fs,
		const std::string &	filename,
		const std::fstream::openmode	openmode
	)

Definition at line 55 of file Utils.cpp.

References fatalError().

Referenced by PowerStateGraph::displayAndPlotFingerprintList(), PowerStateSequence::dumpToFile(), AggregateData::loadCurrentCostData(), Signature::Signature(), Device::trainPowerStateGraph(), and Signature::updatePowerStates().

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const bool Utils::roughlyEqual	(	const double	a,
		const double	b,
		const double	tolerance
	)

Compares 2 doubles. Are they within (a * tolerance) of each other?

Parameters:

tolerance usually a fraction between 0 and 1.

Definition at line 107 of file Utils.cpp.

Referenced by Signature::getDeltaSpikes().

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const int Utils::roundToNearestInt ( const double input )

Definition at line 15 of file Utils.cpp.

Referenced by Signature::getPowerState(), Histogram::Histogram(), and Statistic< Sample_t >::Statistic().

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const size_t Utils::roundToNearestSizeT ( const double input )

Definition at line 20 of file Utils.cpp.

const bool Utils::sameSign	(	const double &	a,
		const double &	b
	)

Returns true if a and b are the same sign. Zero is assumed to be positive.

Definition at line 221 of file Utils.cpp.

Referenced by AggregateData::findSpike(), and PowerStateGraph::updateOrInsertEdge().

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const std::string Utils::secondsToTime ( const size_t seconds )

Definition at line 206 of file Utils.cpp.

References size_t_to_s().

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const std::string Utils::size_t_to_s ( size_t num )

Definition at line 42 of file Utils.cpp.

Referenced by PowerStateGraph::displayAndPlotFingerprintList(), Signature::drawHistWithStateBars(), Histogram::getBaseFilename(), Array< Sample_t >::getBaseFilename(), Array< Sample_t >::getSmoothedGradOfHistFilename(), and secondsToTime().

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const size_t & Utils::smallest	(	const size_t &	a,
		const size_t &	b
	)

Definition at line 155 of file Utils.cpp.

const char * Utils::todaysDateAndTime ( )

Returns:: statically allocated time and date formated like "Tue Feb 1 21:39:46 2001 \n\0". For more details, see p188 of The Linux Programming Interface

Definition at line 36 of file Utils.cpp.

Referenced by PowerStateSequence::dumpToFile().

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const bool Utils::within	(	const double	a,
		const double	b,
		const double	diff
	)

Returns:: true if a and and within diff of each other.

Definition at line 171 of file Utils.cpp.

References between().

Referenced by PowerStateGraph::mostSimilarVertex(), PowerStateGraph::rejectSpike(), and PowerStateGraph::updateOrInsertEdge().

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Utils Namespace Reference

Functions

Function Documentation