IeeeMath Class Reference

Functions for IEEE 754 floating point operations. More...

#include <IeeeMath.h>

List of all members.

Static Public Member Functions
template<class T>
static bool	isNaN (T x)
	Determines if a number is a NaN.

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Detailed Description

Functions for IEEE 754 floating point operations.

Definition at line 45 of file IeeeMath.h.

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Member Function Documentation

template<class T>

bool IeeeMath::isNaN

(

T

x

)

[inline, static]

Determines if a number is a NaN.

It checks for both signaling NaNs and quiet NaNs.

Parameters:

x

determines if this number is NaN

Returns:

true if x is NaN and false otherwise.

It seems difficult to get a portable version of this function. your mileage may vary!

Hopefully this function won't give any more false positives.

Definition at line 35 of file IeeeMath.cpp.

Referenced by QMCDouble::add(), QMCMikesBracketingStepLengthSelector::bracket(), QMCSCFJastrow::calculate_Modified_Grad_PsiRatio(), QMCWalker::calculateMoveAcceptanceProbability(), QMCRun::calculatePopulationSizeBiasCorrectionFactor(), QMCThreeBodyJastrow::collectForPair(), Williamson2CorrelationFunction::evaluate(), QMCEigenSearch::get_a_diag(), QMCEigenSearch::getParameters(), QMCDouble::isNotValid(), QMCWalkerData::isSingular(), QMCObjectiveFunctionResult::mikes_penalty_scaler(), QMCCorrelatedSamplingVMCOptimization::optimize(), QMCWalker::processPropagation(), QMCWalker::reweight_walker(), QMCObjectiveFunctionResult::set_energy_ave(), QMCObjectiveFunctionResult::set_energy_var(), QMCObjectiveFunctionResult::set_log_weights_ave(), QMCObjectiveFunctionResult::set_log_weights_var(), and QMCWalker::setR().

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The documentation for this class was generated from the following files:

• IeeeMath.h
• IeeeMath.cpp