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Optimize floatutils #191

Merged
merged 11 commits into from
Apr 6, 2020
Merged

Optimize floatutils #191

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b2ec361
implement float utils, create timing script
yuvaljacoby Oct 9, 2019
4b02204
inline
yuvaljacoby Oct 14, 2019
c960333
add property, multiple compare
yuvaljacoby Oct 16, 2019
7e09e8e
optimize float_utils
yuvaljacoby Oct 16, 2019
366ab2c
cosmetics
yuvaljacoby Oct 16, 2019
758f80f
move all oneliners to h file
yuvaljacoby Nov 13, 2019
49e7f38
isnan and isinf don't compile in h file
yuvaljacoby Nov 13, 2019
5b11f2b
Merge branch 'master' of https://github.com/NeuralNetworkVerification…
yuvaljacoby Mar 28, 2020
ee4153f
use original is_zero function
yuvaljacoby Mar 30, 2020
691f954
clean up
yuvaljacoby Apr 6, 2020
b9058bd
Merge branch 'optimize_floatutils' of https://github.com/yuvaljacoby/…
yuvaljacoby Apr 6, 2020
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15 changes: 0 additions & 15 deletions src/common/FloatUtils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -49,26 +49,11 @@ bool FloatUtils::areDisequal( double x, double y, double epsilon )
return !areEqual( x, y, epsilon );
}

bool FloatUtils::isZero( double x, double epsilon )
{
return ( -epsilon <= x ) && ( x <= epsilon );
}

double FloatUtils::roundToZero( double x, double epsilon )
{
return isZero( x, epsilon ) ? 0.0 : x;
}

bool FloatUtils::isPositive( double x, double epsilon )
{
return ( !isZero( x, epsilon ) ) && ( x > 0.0 );
}

bool FloatUtils::isNegative( double x, double epsilon )
{
return ( !isZero( x, epsilon ) ) && ( x < 0.0 );
}

bool FloatUtils::isFinite( double x )
{
return ( x != infinity() ) && ( x != negativeInfinity() );
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22 changes: 19 additions & 3 deletions src/common/FloatUtils.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,21 +18,37 @@

#include "GlobalConfiguration.h"
#include "MString.h"
#include "Debug.h"
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#include <cfloat>

class FloatUtils
{
public:
inline static bool isZero( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS )
{
ASSERT( epsilon > 0 );
double lower = -epsilon;
double upper = epsilon;
return ( x - upper ) * ( x - lower ) <= 0;
}
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inline static bool isPositive( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS )
{
ASSERT( epsilon > 0 );
return x > epsilon;
}
inline static bool isNegative( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS )
{
ASSERT( epsilon > 0 );
return x < -epsilon;
}

static bool areEqual( double x, double y, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static double abs( double x );
static bool areDisequal( double x,
double y,
double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool isZero( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static double roundToZero( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool isPositive( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool isNegative( double x, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool gt( double x, double y, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool gte( double x, double y, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
static bool lt( double x, double y, double epsilon = GlobalConfiguration::DEFAULT_EPSILON_FOR_COMPARISONS );
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