SPAR/AIModule/BWTA/vendors/CGAL/CGAL/CORE/CoreDefs.h File Reference

#include <CGAL/CORE/extLong.h>

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Defines
#define	DEFAULT_CORE_LEVEL   3
	default accuracy level
#define	CORE_INFTY   (CORE_posInfty)
	short hand for positive infinity
Functions
void	setDefaultPrecision (const extLong &r, const extLong &a)
	set default composite precision [defAbsPrec, defRelPrec]
extLong	setDefaultRelPrecision (const extLong &r)
	set default relative precision
extLong	setDefaultAbsPrecision (const extLong &a)
	set default absolute precision
extLong	setDefaultInputDigits (const extLong &d)
	set default input digits (for Expr, Real)
long	setDefaultOutputDigits (long d=defOutputDigits, std::ostream &o=std::cout)
	set default output digits (for Expr, Real)
long	setDefaultBFInputDigits (long d)
	set default input digits for BigFloat
long	setDefaultBFOutputDigits (long d)
	set default output digits for BigFloat
bool	setFpFilterFlag (bool f)
	turn floating-point filter on/off
bool	setIncrementalEvalFlag (bool f)
	turn incremental evaluation flag on/off
bool	setProgressiveEvalFlag (bool f)
	turn progressive evaluation flag on/off
long	setDefInitialProgressivePrec (long n)
	set initial bit precision for progressive evaluation:
bool	setRationalReduceFlag (bool f)
	turn rational reduction flag on/off
void	CORE_init (long d)
	CORE_init(..) is the CORE initialization function.
void	setScientificFormat (std::ostream &o=std::cout)
	change to scientific output format
void	setPositionalFormat (std::ostream &o=std::cout)
	change to positional output format
Variables
bool	AbortFlag
	Abort Flag -- default value is true.
int	InvalidFlag
	Invalid Flag -- initiallly value is non-negative.
extLong	EscapePrec
	Escape Precision in bits.
long	EscapePrecFlag
	current ur when EscapePrec triggered
bool	EscapePrecWarning
	Escape Precision Warning Flag.
extLong	defRelPrec
	default Relative Precision in bits
extLong	defAbsPrec
	default Absolute Precision in bits
long	defBigFloatOutputDigits
	default # of decimal digits for conversion from a BF to string.
extLong	defInputDigits
	default input precision in digits for converting a string to a Real or Expr
long	defOutputDigits
	controls the printout precision of std::cout for Real and Expr
long	defBigFloatInputDigits
	default input precision in digits for converting a string to a BigFloat
extLong	defBFdivRelPrec
	default BigFloat Division Relative Precision
extLong	defBFsqrtAbsPrec
	default BigFloat Sqrt Absolute Precision
bool	fpFilterFlag
	floating point filter flag
bool	incrementalEvalFlag
	if true, evaluation of expressions would be incremental
bool	progressiveEvalFlag
	progressive evaluation flag
bool	rationalReduceFlag
	rational reduction flag
long	defInitialProgressivePrec
	default initial (bit) precision for AddSub Progressive Evaluation

---

Define Documentation

#define CORE_INFTY   (CORE_posInfty)

short hand for positive infinity

#define DEFAULT_CORE_LEVEL   3

default accuracy level

---

Function Documentation

void CORE_init

(

long

d

)

[inline]

CORE_init(..) is the CORE initialization function.

We recommend calling it before anything else. Originally motivated by need to get around gnu's compiler bug in which the variable "defAbsPrec" was not properly initialized. But it has other uses, e.g., overriding the default std::cout precision (most systems initializes this value to 6) to our own

extLong setDefaultAbsPrecision

(

const extLong &

a

)

[inline]

set default absolute precision

long setDefaultBFInputDigits

(

long

d

)

[inline]

set default input digits for BigFloat

long setDefaultBFOutputDigits

(

long

d

)

[inline]

set default output digits for BigFloat

extLong setDefaultInputDigits

(

const extLong &

d

)

[inline]

set default input digits (for Expr, Real)

it controls the absolute error

long setDefaultOutputDigits	(	long	d = defOutputDigits,
		std::ostream &	o = std::cout
	)		[inline]

set default output digits (for Expr, Real)

void setDefaultPrecision	(	const extLong &	r,
		const extLong &	a
	)		[inline]

set default composite precision [defAbsPrec, defRelPrec]

It determines the precision to which an Expr evaluates its (exact, implicit) constant value.

extLong setDefaultRelPrecision

(

const extLong &

r

)

[inline]

set default relative precision

long setDefInitialProgressivePrec

(

long

n

)

[inline]

set initial bit precision for progressive evaluation:

bool setFpFilterFlag

(

bool

f

)

[inline]

turn floating-point filter on/off

bool setIncrementalEvalFlag

(

bool

f

)

[inline]

turn incremental evaluation flag on/off

void setPositionalFormat

(

std::ostream &

o = std::cout

)

[inline]

change to positional output format

bool setProgressiveEvalFlag

(

bool

f

)

[inline]

turn progressive evaluation flag on/off

bool setRationalReduceFlag

(

bool

f

)

[inline]

turn rational reduction flag on/off

void setScientificFormat

(

std::ostream &

o = std::cout

)

[inline]

change to scientific output format

---

Variable Documentation

bool AbortFlag

Abort Flag -- default value is true.

The normal behavior is to abort when an invalid expression is constructed. This flag can be used to turn off this abort. In any case, an error message will be printed

extLong defAbsPrec

default Absolute Precision in bits

extLong defBFdivRelPrec

default BigFloat Division Relative Precision

extLong defBFsqrtAbsPrec

default BigFloat Sqrt Absolute Precision

long defBigFloatInputDigits

default input precision in digits for converting a string to a BigFloat

This value cannot be CORE_INFTY.

long defBigFloatOutputDigits

default # of decimal digits for conversion from a BF to string.

This value cannot be CORE_INFTY. See also defOutputDigits.

long defInitialProgressivePrec

default initial (bit) precision for AddSub Progressive Evaluation

extLong defInputDigits

default input precision in digits for converting a string to a Real or Expr

This value can be CORE_INFTY

long defOutputDigits

controls the printout precision of std::cout for Real and Expr

This value cannot be CORE_INFTY See also defBigFloatOutputDigits. (it really should be an int, as in std::cout.setprecision(int)).

extLong defRelPrec

default Relative Precision in bits

extLong EscapePrec

Escape Precision in bits.

long EscapePrecFlag

current ur when EscapePrec triggered

this flag becomes negative when default EscapePrec is applied

bool EscapePrecWarning

Escape Precision Warning Flag.

this flag is true by default, and will cause a warning to be printed when EscapePrec is reached

bool fpFilterFlag

floating point filter flag

bool incrementalEvalFlag

if true, evaluation of expressions would be incremental

int InvalidFlag

Invalid Flag -- initiallly value is non-negative.

If the Abort Flag is false, then the Invalid flag will be set to a negative value whenever an invalid expression is constructed. It is the user's responsibility to check this flag and to make it non-negative again.

bool progressiveEvalFlag

progressive evaluation flag

bool rationalReduceFlag

rational reduction flag