internal::Double Class Reference

Public Member Functions
	Double ()
	Double (double d)
	Double (uint64_t u)
double	Value () const
uint64_t	Uint64Value () const
double	NextPositiveDouble () const
bool	Sign () const
uint64_t	Significand () const
int	Exponent () const
bool	IsNan () const
bool	IsInf () const
bool	IsNanOrInf () const
bool	IsNormal () const
bool	IsZero () const
uint64_t	IntegerSignificand () const
int	IntegerExponent () const
uint64_t	ToBias () const

Static Public Member Functions
static unsigned	EffectiveSignificandSize (int order)

Private Attributes
union {
double   d_
uint64_t   u_
};

Static Private Attributes
static const int	kSignificandSize = 52
static const int	kExponentBias = 0x3FF
static const int	kDenormalExponent = 1 - kExponentBias
static const uint64_t	kSignMask = RAPIDJSON_UINT64_C2(0x80000000, 0x00000000)
static const uint64_t	kExponentMask = RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000)
static const uint64_t	kSignificandMask = RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF)
static const uint64_t	kHiddenBit = RAPIDJSON_UINT64_C2(0x00100000, 0x00000000)

Constructor & Destructor Documentation

internal::Double::Double ( )

inline

Referenced by NextPositiveDouble().

internal::Double::Double ( double  d )

inline

internal::Double::Double ( uint64_t  u )

inline

Member Function Documentation

double internal::Double::Value ( ) const

inline

References d_.

Referenced by internal::StrtodBigInteger().

uint64_t internal::Double::Uint64Value ( ) const

inline

References u_.

double internal::Double::NextPositiveDouble ( ) const

inline

References Double(), RAPIDJSON_ASSERT, Sign(), and u_.

Referenced by internal::StrtodBigInteger().

bool internal::Double::Sign ( ) const

inline

References kSignMask, and u_.

Referenced by internal::dtoa(), and NextPositiveDouble().

uint64_t internal::Double::Significand ( ) const

inline

References kSignificandMask, and u_.

Referenced by IntegerSignificand(), IsInf(), IsNan(), IsNormal(), and internal::StrtodBigInteger().

int internal::Double::Exponent ( ) const

inline

References kExponentBias, kExponentMask, kSignificandSize, and u_.

Referenced by IntegerExponent().

bool internal::Double::IsNan ( ) const

inline

References kExponentMask, Significand(), and u_.

bool internal::Double::IsInf ( ) const

inline

References kExponentMask, Significand(), and u_.

bool internal::Double::IsNanOrInf ( ) const

inline

References kExponentMask, and u_.

bool internal::Double::IsNormal ( ) const

inline

References kExponentMask, Significand(), and u_.

Referenced by IntegerExponent(), and IntegerSignificand().

bool internal::Double::IsZero ( ) const

inline

References kExponentMask, kSignificandMask, and u_.

Referenced by internal::dtoa().

uint64_t internal::Double::IntegerSignificand ( ) const

inline

References IsNormal(), kHiddenBit, and Significand().

Referenced by internal::CheckWithinHalfULP().

int internal::Double::IntegerExponent ( ) const

inline

References Exponent(), IsNormal(), kDenormalExponent, and kSignificandSize.

Referenced by internal::CheckWithinHalfULP().

uint64_t internal::Double::ToBias ( ) const

inline

References kSignMask, and u_.

static unsigned internal::Double::EffectiveSignificandSize ( int  order )

inlinestatic

Referenced by internal::StrtodDiyFp().

Member Data Documentation

const int internal::Double::kSignificandSize = 52

staticprivate

Referenced by Exponent(), and IntegerExponent().

const int internal::Double::kExponentBias = 0x3FF

staticprivate

Referenced by Exponent().

const int internal::Double::kDenormalExponent = 1 - kExponentBias

staticprivate

Referenced by IntegerExponent().

const uint64_t internal::Double::kSignMask = RAPIDJSON_UINT64_C2(0x80000000, 0x00000000)

staticprivate

Referenced by Sign(), and ToBias().

const uint64_t internal::Double::kExponentMask = RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000)

staticprivate

Referenced by Exponent(), IsInf(), IsNan(), IsNanOrInf(), IsNormal(), and IsZero().

const uint64_t internal::Double::kSignificandMask = RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF)

staticprivate

Referenced by IsZero(), and Significand().

const uint64_t internal::Double::kHiddenBit = RAPIDJSON_UINT64_C2(0x00100000, 0x00000000)

staticprivate

Referenced by IntegerSignificand().

double internal::Double::d_

Referenced by Value().

uint64_t internal::Double::u_

Referenced by Exponent(), IsInf(), IsNan(), IsNanOrInf(), IsNormal(), IsZero(), NextPositiveDouble(), Sign(), Significand(), ToBias(), and Uint64Value().

union { ... }

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

• ieee754.h