geos::math::DD Class Reference

Wrapper for DoubleDouble higher precision mathematics operations. More...

#include <DD.h>

Public Member Functions
	DD (double p_hi, double p_lo)
	DD (double x)
	DD ()
bool	operator== (const DD &rhs) const
bool	operator!= (const DD &rhs) const
bool	operator< (const DD &rhs) const
bool	operator<= (const DD &rhs) const
bool	operator> (const DD &rhs) const
bool	operator>= (const DD &rhs) const
bool	isNaN () const
bool	isNegative () const
bool	isPositive () const
bool	isZero () const
double	doubleValue () const
double	ToDouble () const
int	intValue () const
DD	negate () const
DD	reciprocal () const
DD	floor () const
DD	ceil () const
void	selfAdd (const DD &d)
void	selfAdd (double p_hi, double p_lo)
void	selfAdd (double y)
void	selfSubtract (const DD &d)
void	selfSubtract (double p_hi, double p_lo)
void	selfSubtract (double y)
void	selfMultiply (double p_hi, double p_lo)
void	selfMultiply (const DD &d)
void	selfMultiply (double y)
void	selfDivide (double p_hi, double p_lo)
void	selfDivide (const DD &d)
void	selfDivide (double y)

Static Public Member Functions
static DD	determinant (const DD &x1, const DD &y1, const DD &x2, const DD &y2)
static DD	determinant (double x1, double y1, double x2, double y2)
static DD	abs (const DD &d)
static DD	pow (const DD &d, int exp)
static DD	trunc (const DD &d)

Private Member Functions
int	signum () const
DD	rint () const

Private Attributes
double	hi
double	lo

Static Private Attributes
static constexpr double	SPLIT = 134217729.0

Friends
DD	operator+ (const DD &lhs, const DD &rhs)
DD	operator+ (const DD &lhs, double rhs)
DD	operator- (const DD &lhs, const DD &rhs)
DD	operator- (const DD &lhs, double rhs)
DD	operator* (const DD &lhs, const DD &rhs)
DD	operator* (const DD &lhs, double rhs)
DD	operator/ (const DD &lhs, const DD &rhs)
DD	operator/ (const DD &lhs, double rhs)

Detailed Description

Wrapper for DoubleDouble higher precision mathematics operations.

Definition at line 108 of file DD.h.

Constructor & Destructor Documentation

geos::math::DD::DD ( double  p_hi, double  p_lo  )

inline

Definition at line 119 of file DD.h.

geos::math::DD::DD ( double  x )

inline

Definition at line 120 of file DD.h.

geos::math::DD::DD ( )

inline

Definition at line 121 of file DD.h.

Member Function Documentation

static DD geos::math::DD::abs ( const DD &  d )

static

DD geos::math::DD::ceil

(

)

const

static DD geos::math::DD::determinant ( const DD &  x1, const DD &  y1, const DD &  x2, const DD &  y2  )

static

static DD geos::math::DD::determinant ( double  x1, double  y1, double  x2, double  y2  )

static

double geos::math::DD::doubleValue

(

)

const

DD geos::math::DD::floor

(

)

const

int geos::math::DD::intValue

(

)

const

bool geos::math::DD::isNaN

(

)

const

bool geos::math::DD::isNegative

(

)

const

bool geos::math::DD::isPositive

(

)

const

bool geos::math::DD::isZero

(

)

const

DD geos::math::DD::negate

(

)

const

bool geos::math::DD::operator!= ( const DD &  rhs ) const

inline

Definition at line 128 of file DD.h.

References hi, and lo.

bool geos::math::DD::operator< ( const DD &  rhs ) const

inline

Definition at line 133 of file DD.h.

References hi, and lo.

bool geos::math::DD::operator<= ( const DD &  rhs ) const

inline

Definition at line 138 of file DD.h.

References hi, and lo.

bool geos::math::DD::operator== ( const DD &  rhs ) const

inline

Definition at line 123 of file DD.h.

References hi, and lo.

bool geos::math::DD::operator> ( const DD &  rhs ) const

inline

Definition at line 143 of file DD.h.

References hi, and lo.

bool geos::math::DD::operator>= ( const DD &  rhs ) const

inline

Definition at line 148 of file DD.h.

References GEOS_DLL, hi, and lo.

static DD geos::math::DD::pow ( const DD &  d, int  exp  )

static

DD geos::math::DD::reciprocal

(

)

const

DD geos::math::DD::rint ( ) const

private

void geos::math::DD::selfAdd

(

const DD &

d

)

void geos::math::DD::selfAdd	(	double	p_hi,
		double	p_lo
	)

void geos::math::DD::selfAdd

(

double

y

)

void geos::math::DD::selfDivide	(	double	p_hi,
		double	p_lo
	)

void geos::math::DD::selfDivide

(

const DD &

d

)

void geos::math::DD::selfDivide

(

double

y

)

void geos::math::DD::selfMultiply	(	double	p_hi,
		double	p_lo
	)

void geos::math::DD::selfMultiply

(

const DD &

d

)

void geos::math::DD::selfMultiply

(

double

y

)

void geos::math::DD::selfSubtract

(

const DD &

d

)

void geos::math::DD::selfSubtract	(	double	p_hi,
		double	p_lo
	)

void geos::math::DD::selfSubtract

(

double

y

)

int geos::math::DD::signum ( ) const

private

double geos::math::DD::ToDouble ( ) const

inline

Definition at line 173 of file DD.h.

static DD geos::math::DD::trunc ( const DD &  d )

static

Friends And Related Function Documentation

DD operator* ( const DD &  lhs, const DD &  rhs  )

friend

DD operator* ( const DD &  lhs, double  rhs  )

friend

DD operator+ ( const DD &  lhs, const DD &  rhs  )

friend

DD operator+ ( const DD &  lhs, double  rhs  )

friend

DD operator- ( const DD &  lhs, const DD &  rhs  )

friend

DD operator- ( const DD &  lhs, double  rhs  )

friend

DD operator/ ( const DD &  lhs, const DD &  rhs  )

friend

DD operator/ ( const DD &  lhs, double  rhs  )

friend

Member Data Documentation

double geos::math::DD::hi

private

Definition at line 111 of file DD.h.

Referenced by operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

double geos::math::DD::lo

private

Definition at line 112 of file DD.h.

Referenced by operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

constexpr double geos::math::DD::SPLIT = 134217729.0

staticprivate

Definition at line 110 of file DD.h.

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

• DD.h