Double Class Reference

#include <double.h>

Public Member Functions
	Double ()
	Double (double d)
	Double (uint64_t d64)
	Double (DiyFp diy_fp)
DiyFp	AsDiyFp () const
DiyFp	AsNormalizedDiyFp () const
uint64_t	AsUint64 () const
double	NextDouble () const
int	Exponent () const
uint64_t	Significand () const
bool	IsDenormal () const
bool	IsSpecial () const
bool	IsInfinite () const
int	Sign () const
DiyFp	UpperBoundary () const
void	NormalizedBoundaries (DiyFp *out_m_minus, DiyFp *out_m_plus) const
double	value () const

Static Public Member Functions
static int	SignificandSizeForOrderOfMagnitude (int order)

Static Public Attributes
static const uint64_t	kSignMask = V8_2PART_UINT64_C(0x80000000, 00000000)
static const uint64_t	kExponentMask = V8_2PART_UINT64_C(0x7FF00000, 00000000)
static const uint64_t	kSignificandMask
static const uint64_t	kHiddenBit = V8_2PART_UINT64_C(0x00100000, 00000000)
static const int	kPhysicalSignificandSize = 52
static const int	kSignificandSize = 53

Detailed Description

Definition at line 41 of file double.h.

Constructor & Destructor Documentation

Double ( )

inline

Definition at line 51 of file double.h.

Referenced by Double::NextDouble().

Double ( double  d )

inlineexplicit

Definition at line 52 of file double.h.

Double ( uint64_t  d64 )

inlineexplicit

Definition at line 53 of file double.h.

Double ( DiyFp  diy_fp )

inlineexplicit

Definition at line 54 of file double.h.

Member Function Documentation

DiyFp AsDiyFp ( ) const

inline

Definition at line 59 of file double.h.

References ASSERT, Double::Exponent(), Double::IsSpecial(), Double::Sign(), and Double::Significand().

Referenced by Double::NormalizedBoundaries(), and TEST().

DiyFp AsNormalizedDiyFp ( ) const

inline

Definition at line 66 of file double.h.

References ASSERT, Double::Exponent(), Double::kHiddenBit, DiyFp::kSignificandSize, Double::kSignificandSize, Double::Significand(), and Double::value().

Referenced by TEST().

uint64_t AsUint64 ( ) const

inline

Definition at line 83 of file double.h.

Referenced by Double::Exponent(), Double::IsDenormal(), Double::IsInfinite(), Double::IsSpecial(), Double::Sign(), and Double::Significand().

int Exponent ( ) const

inline

Definition at line 101 of file double.h.

References Double::AsUint64(), Double::IsDenormal(), Double::kExponentMask, and Double::kPhysicalSignificandSize.

Referenced by Double::AsDiyFp(), Double::AsNormalizedDiyFp(), v8::internal::BignumDtoa(), v8::internal::DoubleToInt32(), v8::internal::FastFixedDtoa(), and Double::UpperBoundary().

bool IsDenormal ( ) const

inline

Definition at line 121 of file double.h.

References Double::AsUint64(), and Double::kExponentMask.

Referenced by Double::Exponent(), and Double::Significand().

bool IsInfinite ( ) const

inline

Definition at line 133 of file double.h.

References Double::AsUint64(), Double::kExponentMask, and Double::kSignificandMask.

bool IsSpecial ( ) const

inline

Definition at line 128 of file double.h.

References Double::AsUint64(), and Double::kExponentMask.

Referenced by Double::AsDiyFp().

double NextDouble ( ) const

inline

Definition at line 88 of file double.h.

References Double::Double(), Double::Sign(), and Double::Significand().

Referenced by TEST().

void NormalizedBoundaries ( DiyFp *  out_m_minus, DiyFp *  out_m_plus  ) const

inline

Definition at line 155 of file double.h.

References Double::AsDiyFp(), ASSERT, DiyFp::e(), DiyFp::f(), Double::kHiddenBit, DiyFp::Normalize(), DiyFp::set_e(), DiyFp::set_f(), and Double::value().

Referenced by TEST().

int Sign ( ) const

inline

Definition at line 139 of file double.h.

References Double::AsUint64(), and Double::kSignMask.

Referenced by Double::AsDiyFp(), v8::internal::DoubleToInt32(), Double::NextDouble(), and Double::UpperBoundary().

uint64_t Significand ( ) const

inline

Definition at line 110 of file double.h.

References Double::AsUint64(), Double::IsDenormal(), Double::kHiddenBit, and Double::kSignificandMask.

Referenced by Double::AsDiyFp(), Double::AsNormalizedDiyFp(), v8::internal::BignumDtoa(), v8::internal::DoubleToInt32(), v8::internal::FastFixedDtoa(), Double::NextDouble(), and Double::UpperBoundary().

static int SignificandSizeForOrderOfMagnitude ( int  order )

inlinestatic

Definition at line 186 of file double.h.

References Double::kSignificandSize.

DiyFp UpperBoundary ( ) const

inline

Definition at line 146 of file double.h.

References ASSERT, Double::Exponent(), Double::Sign(), and Double::Significand().

double value ( ) const

inline

Definition at line 178 of file double.h.

References v8::internal::uint64_to_double().

Referenced by Double::AsNormalizedDiyFp(), Double::NormalizedBoundaries(), and TEST().

Field Documentation

const uint64_t kExponentMask = V8_2PART_UINT64_C(0x7FF00000, 00000000)

static

Definition at line 44 of file double.h.

Referenced by Double::Exponent(), Double::IsDenormal(), Double::IsInfinite(), and Double::IsSpecial().

const uint64_t kHiddenBit = V8_2PART_UINT64_C(0x00100000, 00000000)

static

Definition at line 47 of file double.h.

Referenced by Double::AsNormalizedDiyFp(), Double::NormalizedBoundaries(), and Double::Significand().

const int kPhysicalSignificandSize = 52

static

Definition at line 48 of file double.h.

Referenced by Double::Exponent().

const uint64_t kSignificandMask

static

Initial value:

=
      V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF)

Definition at line 45 of file double.h.

Referenced by Double::IsInfinite(), and Double::Significand().

const int kSignificandSize = 53

static

Definition at line 49 of file double.h.

Referenced by Double::AsNormalizedDiyFp(), v8::internal::DoubleToInt32(), and Double::SignificandSizeForOrderOfMagnitude().

const uint64_t kSignMask = V8_2PART_UINT64_C(0x80000000, 00000000)

static

Definition at line 43 of file double.h.

Referenced by Double::Sign(), and v8::internal::SignedZero().

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

• src/double.h