The University of Colorado extended double precision package. More...

Typedefs
typedef struct EpDoubleStruct	EpDouble
	The type of extended precision floating-point numbers.

Functions
EpDouble *	EpdAlloc (void)
	Allocates an EpDouble struct.

int	EpdCmp (const void key1, const void key2)
	Compares two EpDouble struct. More...

void	EpdFree (EpDouble *epd)
	Frees an EpDouble struct.

void	EpdGetString (EpDouble const epd, char str)
	Converts an extended precision double value to a string. More...

void	EpdConvert (double value, EpDouble *epd)
	Converts double to EpDouble struct.

void	EpdMultiply (EpDouble *epd1, double value)
	Multiplies an extended precision double by a double.

void	EpdMultiply2 (EpDouble epd1, EpDouble const epd2)
	Multiplies an extended precision double by another.

void	EpdMultiply2Decimal (EpDouble epd1, EpDouble const epd2)
	Multiplies two extended precision double values.

void	EpdMultiply3 (EpDouble const epd1, EpDouble const epd2, EpDouble *epd3)
	Multiplies two extended precision double values. More...

void	EpdMultiply3Decimal (EpDouble const epd1, EpDouble const epd2, EpDouble *epd3)
	Multiplies two extended precision double values.

void	EpdDivide (EpDouble *epd1, double value)
	Divides an extended precision double by a double.

void	EpdDivide2 (EpDouble epd1, EpDouble const epd2)
	Divides an extended precision double by another.

void	EpdDivide3 (EpDouble const epd1, EpDouble const epd2, EpDouble *epd3)
	Divides two extended precision double values.

void	EpdAdd (EpDouble *epd1, double value)
	Adds a double to an extended precision double.

void	EpdAdd2 (EpDouble epd1, EpDouble const epd2)
	Adds an extended precision double to another. More...

void	EpdAdd3 (EpDouble const epd1, EpDouble const epd2, EpDouble *epd3)
	Adds two extended precision double values.

void	EpdSubtract (EpDouble *epd1, double value)
	Subtracts a double from an extended precision double.

void	EpdSubtract2 (EpDouble epd1, EpDouble const epd2)
	Subtracts an extended precision double from another.

void	EpdSubtract3 (EpDouble const epd1, EpDouble const epd2, EpDouble *epd3)
	Subtracts two extended precision double values.

void	EpdPow2 (int n, EpDouble *epd)
	Computes extended precision pow of base 2.

void	EpdPow2Decimal (int n, EpDouble *epd)
	Computes extended precision pow of base 2.

void	EpdNormalize (EpDouble *epd)
	Normalize an extended precision double value.

void	EpdNormalizeDecimal (EpDouble *epd)
	Normalize an extended precision double value.

void	EpdGetValueAndDecimalExponent (EpDouble const epd, double value, int *exponent)
	Returns value and decimal exponent of EpDouble.

int	EpdGetExponent (double value)
	Returns the exponent value of a double.

int	EpdGetExponentDecimal (double value)
	Returns the decimal exponent value of a double.

void	EpdMakeInf (EpDouble *epd, int sign)
	Makes EpDouble Inf.

void	EpdMakeZero (EpDouble *epd, int sign)
	Makes EpDouble Zero.

void	EpdMakeNan (EpDouble *epd)
	Makes EpDouble NaN.

void	EpdCopy (EpDouble const from, EpDouble to)
	Copies an EpDouble struct.

int	EpdIsInf (EpDouble const *epd)
	Checks whether the value is Inf.

int	EpdIsZero (EpDouble const *epd)
	Checks whether the value is Zero.

int	EpdIsNan (EpDouble const *epd)
	Checks whether the value is NaN.

int	EpdIsNanOrInf (EpDouble const *epd)
	Checks whether the value is NaN or Inf.

int	IsInfDouble (double value)
	Checks whether the value is Inf.

int	IsNanDouble (double value)
	Checks whether the value is NaN.

int	IsNanOrInfDouble (double value)
	Checks whether the value is NaN or Inf.

Detailed Description

The University of Colorado extended double precision package.

Arithmetic functions with extended double precision. The floating point numbers manipulated by this package use an int to hold the exponent. The significand has the same precision as a standard double.

Author: In-Ho Moon

Copyright

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the University of Colorado nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ EpdAdd2()

void EpdAdd2	(	EpDouble *	epd1,
		EpDouble const *	epd2
	)

Adds an extended precision double to another.

The sum goes in the first argument.

◆ EpdCmp()

int EpdCmp	(	const void *	key1,
		const void *	key2
	)

Compares two EpDouble struct.

Returns: 0 if the two structures hold the same value; 1 otherwise.

◆ EpdGetString()

void EpdGetString	(	EpDouble const *	epd,
		char *	str
	)

Converts an extended precision double value to a string.

Side effects The string is written at the address passed in str.

◆ EpdMultiply3()

void EpdMultiply3	(	EpDouble const *	epd1,
		EpDouble const *	epd2,
		EpDouble *	epd3
	)

Multiplies two extended precision double values.

The result goes in the third operand.