Decimal Class Reference

#include <OnixS/CME/DropCopy/Numeric.h>

Public Member Functions
	Decimal (DecimalMantissa mantissa=0, DecimalExponent exponent=0)
	Decimal (Double value, size_t precision)
	Decimal (const Decimal &other)
DecimalMantissa	mantissa () const
void	mantissa (DecimalMantissa)
DecimalExponent	exponent () const
void	exponent (DecimalExponent)
bool	operator== (const Decimal &) const
bool	operator!= (const Decimal &) const
bool	operator< (const Decimal &) const
bool	operator> (const Decimal &) const
	operator Int32 () const
	operator UInt32 () const
	operator Int64 () const
	operator UInt64 () const
	operator Double () const
bool	toNumber (Int32 &) const
bool	toNumber (UInt32 &) const
bool	toNumber (Int64 &) const
bool	toNumber (UInt64 &) const
bool	toNumber (Double &) const
Double	toDoubleUnchecked () const
void	toString (std::string &) const
std::string	toString () const
Decimal &	operator= (const Decimal &other)

Static Public Member Functions
static Decimal	fromDoubleUnchecked (Double value, size_t precision)
static bool	tryParse (const char *buffer, size_t bufferSize, Decimal &)
static Decimal	parse (const char *buffer, size_t bufferSize)

Detailed Description

Definition at line 44 of file Numeric.h.

Constructor & Destructor Documentation

Decimal ( DecimalMantissa  mantissa = 0, DecimalExponent  exponent = 0  )

inline

Initializes instance from compound components.

Definition at line 171 of file Numeric.h.

Decimal	(	Double	value,
		size_t	precision
	)

Converts Double value to decimal.

Parameters

value	double precision floating-point value.
precision	defines conversion precision.

Decimal ( const Decimal &  other )

inline

Initializes as copy of given value.

Definition at line 177 of file Numeric.h.

Member Function Documentation

DecimalExponent exponent ( ) const

inline

Returns exponent part of decimal.

Definition at line 193 of file Numeric.h.

void exponent ( DecimalExponent  value )

inline

Updates exponent part of decimal.

Definition at line 198 of file Numeric.h.

Decimal fromDoubleUnchecked ( Double  value, size_t  precision  )

inlinestatic

Fast cast from double floating point number.

Note

For the sake of performance no range checks are done. Result may be invalid if decimal cannot be represented as double value. Warning: result may be different (less precise) from Decimal(Double, size_t) result due to performance vs precision trade-off.

Definition at line 306 of file Numeric.h.

DecimalMantissa mantissa ( ) const

inline

Returns mantissa part of decimal.

Definition at line 183 of file Numeric.h.

void mantissa ( DecimalMantissa  value )

inline

Updates mantissa part of decimal.

Definition at line 188 of file Numeric.h.

operator Double ( ) const

inline

Casts to whole floating point as regular value is casted to a smaller precision.

Exceptions

domain_error

exception on failure.

Definition at line 259 of file Numeric.h.

operator Int32 ( ) const

inline

Casts to whole integer number as regular floating point value is casted.

Exceptions

domain_error

exception on failure.

Definition at line 211 of file Numeric.h.

operator Int64 ( ) const

inline

Casts to whole integer number as regular floating point value is casted.

Exceptions

domain_error

exception on failure.

Definition at line 235 of file Numeric.h.

operator UInt32 ( ) const

inline

Casts to whole integer number as regular floating point value is casted.

Exceptions

domain_error

exception on failure.

Definition at line 223 of file Numeric.h.

operator UInt64 ( ) const

inline

Casts to whole integer number as regular floating point value is casted.

Exceptions

domain_error

exception on failure.

Definition at line 247 of file Numeric.h.

bool operator!=

(

const Decimal &

)

const

Compares two numbers.

bool operator<

(

const Decimal &

)

const

Establishes order between two values.

Decimal & operator= ( const Decimal &  other )

inline

Reinitializes instance from another one.

Definition at line 203 of file Numeric.h.

bool operator==

(

const Decimal &

)

const

Compares two numbers.

bool operator>

(

const Decimal &

)

const

Establishes order between two values.

static Decimal parse ( const char *  buffer, size_t  bufferSize  )

static

Parses decimal from string presentation.

Exceptions

std::exception

on failure.

Double toDoubleUnchecked ( ) const

inline

Fast cast to double floating point number.

Note

For the sake of performance no range checks are done. Result may be invalid if decimal cannot be represented as double value. Warning: result may be different (less precise) from toNumber(Double&) result due to performance vs precision trade-off.

Definition at line 300 of file Numeric.h.

bool toNumber

(

Int32 &

)

const

Casts to whole integer number as regular floating point value is casted.

Returns

false if conversion fails.

bool toNumber

(

UInt32 &

)

const

Casts to whole integer number as regular floating point value is casted.

Returns

false if conversion fails.

bool toNumber

(

Int64 &

)

const

Casts to whole integer number as regular floating point value is casted.

Returns

false if conversion fails.

bool toNumber

(

UInt64 &

)

const

Casts to whole integer number as regular floating point value is casted.

Returns

false if conversion fails.

bool toNumber

(

Double &

)

const

Casts to double floating point number.

Returns

false if conversion fails.

void toString

(

std::string &

)

const

Appends text presentation to given string.

std::string toString ( ) const

inline

Returns text presentation of decimal.

Definition at line 271 of file Numeric.h.

static bool tryParse ( const char *  buffer, size_t  bufferSize, Decimal &    )

static

Attempts to parse decimal value from its string/text presentation.

Returns

false on parsing failure.

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

• include/OnixS/CME/DropCopy/Numeric.h