bigdecimal.h File Reference

#include "ruby/ruby.h"
#include <float.h>

Go to the source code of this file.

Data Structures
struct	Real

Macros
#define	RUBY_NO_OLD_COMPATIBILITY
#define	BDIGIT   uint16_t
#define	BDIGIT_DBL   uint32_t
#define	BDIGIT_DBL_SIGNED   int32_t
#define	SIZEOF_BDIGITS   2
#define	PRI_BDIGIT_PREFIX   "h"
#define	PRI_BDIGIT_DBL_PREFIX   ""
#define	PRIdBDIGIT   PRI_BDIGIT_PREFIX"d"
#define	PRIiBDIGIT   PRI_BDIGIT_PREFIX"i"
#define	PRIoBDIGIT   PRI_BDIGIT_PREFIX"o"
#define	PRIuBDIGIT   PRI_BDIGIT_PREFIX"u"
#define	PRIxBDIGIT   PRI_BDIGIT_PREFIX"x"
#define	PRIXBDIGIT   PRI_BDIGIT_PREFIX"X"
#define	PRIdBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"d"
#define	PRIiBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"i"
#define	PRIoBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"o"
#define	PRIuBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"u"
#define	PRIxBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"x"
#define	PRIXBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"X"
#define	vabs   abs
#define	RMPD_COMPONENT_FIGURES   4
#define	RMPD_BASE   ((BDIGIT)10000U)
#define	SZ_NaN   "NaN"
#define	SZ_INF   "Infinity"
#define	SZ_PINF   "+Infinity"
#define	SZ_NINF   "-Infinity"
#define	VP_EXPORT   static
#define	VP_EXCEPTION_ALL   ((unsigned short)0x00FF)
#define	VP_EXCEPTION_INFINITY   ((unsigned short)0x0001)
#define	VP_EXCEPTION_NaN   ((unsigned short)0x0002)
#define	VP_EXCEPTION_UNDERFLOW   ((unsigned short)0x0004)
#define	VP_EXCEPTION_OVERFLOW   ((unsigned short)0x0001) /* 0x0008) */
#define	VP_EXCEPTION_ZERODIVIDE   ((unsigned short)0x0010)
#define	VP_EXCEPTION_OP   ((unsigned short)0x0020)
#define	VP_EXCEPTION_MEMORY   ((unsigned short)0x0040)
#define	RMPD_EXCEPTION_MODE_DEFAULT   0U
#define	VP_ROUND_MODE   ((unsigned short)0x0100)
#define	VP_ROUND_UP   1
#define	VP_ROUND_DOWN   2
#define	VP_ROUND_HALF_UP   3
#define	VP_ROUND_HALF_DOWN   4
#define	VP_ROUND_CEIL   5
#define	VP_ROUND_FLOOR   6
#define	VP_ROUND_HALF_EVEN   7
#define	RMPD_ROUNDING_MODE_DEFAULT   VP_ROUND_HALF_UP
#define	VP_SIGN_NaN   0 /* NaN */
#define	VP_SIGN_POSITIVE_ZERO   1 /* Positive zero */
#define	VP_SIGN_NEGATIVE_ZERO   -1 /* Negative zero */
#define	VP_SIGN_POSITIVE_FINITE   2 /* Positive finite number */
#define	VP_SIGN_NEGATIVE_FINITE   -2 /* Negative finite number */
#define	VP_SIGN_POSITIVE_INFINITE   3 /* Positive infinite number */
#define	VP_SIGN_NEGATIVE_INFINITE   -3 /* Negative infinite number */
#define	FLEXIBLE_ARRAY_SIZE   1
#define	VpBaseFig()   rmpd_component_figures()
#define	VpDblFig()   rmpd_double_figures()
#define	VpBaseVal()   rmpd_base_value()
#define	Abs(a)   (((a)>= 0)?(a):(-(a)))
#define	Max(a, b)   (((a)>(b))?(a):(b))
#define	Min(a, b)   (((a)>(b))?(b):(a))
#define	VpMaxPrec(a)   ((a)->MaxPrec)
#define	VpPrec(a)   ((a)->Prec)
#define	VpGetFlag(a)   ((a)->flag)
#define	VpGetSign(a)   (((a)->sign>0)?1:(-1))
#define	VpChangeSign(a, s)   {if((s)>0) (a)->sign=(short)Abs((ssize_t)(a)->sign);else (a)->sign=-(short)Abs((ssize_t)(a)->sign);}
#define	VpSetSign(a, s)   {if((s)>0) (a)->sign=(short)VP_SIGN_POSITIVE_FINITE;else (a)->sign=(short)VP_SIGN_NEGATIVE_FINITE;}
#define	VpSetOne(a)   {(a)->Prec=(a)->exponent=(a)->frac[0]=1;(a)->sign=VP_SIGN_POSITIVE_FINITE;}
#define	VpIsPosZero(a)   ((a)->sign==VP_SIGN_POSITIVE_ZERO)
#define	VpIsNegZero(a)   ((a)->sign==VP_SIGN_NEGATIVE_ZERO)
#define	VpIsZero(a)   (VpIsPosZero(a) || VpIsNegZero(a))
#define	VpSetPosZero(a)   ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_ZERO)
#define	VpSetNegZero(a)   ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_ZERO)
#define	VpSetZero(a, s)   (void)(((s)>0)?VpSetPosZero(a):VpSetNegZero(a))
#define	VpIsNaN(a)   ((a)->sign==VP_SIGN_NaN)
#define	VpSetNaN(a)   ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NaN)
#define	VpIsPosInf(a)   ((a)->sign==VP_SIGN_POSITIVE_INFINITE)
#define	VpIsNegInf(a)   ((a)->sign==VP_SIGN_NEGATIVE_INFINITE)
#define	VpIsInf(a)   (VpIsPosInf(a) || VpIsNegInf(a))
#define	VpIsDef(a)   ( !(VpIsNaN(a)||VpIsInf(a)) )
#define	VpSetPosInf(a)   ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_INFINITE)
#define	VpSetNegInf(a)   ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_INFINITE)
#define	VpSetInf(a, s)   (void)(((s)>0)?VpSetPosInf(a):VpSetNegInf(a))
#define	VpHasVal(a)   (a->frac[0])
#define	VpIsOne(a)   ((a->Prec==1)&&(a->frac[0]==1)&&(a->exponent==1))
#define	VpExponent(a)   (a->exponent)

Functions
VP_EXPORT Real *	VpNewRbClass (size_t mx, char const *str, VALUE klass)
VP_EXPORT Real *	VpCreateRbObject (size_t mx, const char *str)
VP_EXPORT double	VpGetDoubleNaN (void)
VP_EXPORT double	VpGetDoublePosInf (void)
VP_EXPORT double	VpGetDoubleNegInf (void)
VP_EXPORT double	VpGetDoubleNegZero (void)
VP_EXPORT size_t	VpGetPrecLimit (void)
VP_EXPORT size_t	VpSetPrecLimit (size_t n)
VP_EXPORT int	VpIsRoundMode (unsigned short n)
VP_EXPORT unsigned short	VpGetRoundMode (void)
VP_EXPORT unsigned short	VpSetRoundMode (unsigned short n)
VP_EXPORT int	VpException (unsigned short f, const char *str, int always)
VP_EXPORT size_t	VpNumOfChars (Real *vp, const char *pszFmt)
VP_EXPORT size_t	VpInit (BDIGIT BaseVal)
VP_EXPORT void *	VpMemAlloc (size_t mb)
VP_EXPORT void *	VpMemRealloc (void *ptr, size_t mb)
VP_EXPORT void	VpFree (Real *pv)
VP_EXPORT Real *	VpAlloc (size_t mx, const char *szVal, int strict_p, int exc)
VP_EXPORT size_t	VpAsgn (Real *c, Real *a, int isw)
VP_EXPORT size_t	VpAddSub (Real *c, Real *a, Real *b, int operation)
VP_EXPORT size_t	VpMult (Real *c, Real *a, Real *b)
VP_EXPORT size_t	VpDivd (Real *c, Real *r, Real *a, Real *b)
VP_EXPORT int	VpComp (Real *a, Real *b)
VP_EXPORT ssize_t	VpExponent10 (Real *a)
VP_EXPORT void	VpSzMantissa (Real *a, char *psz)
VP_EXPORT int	VpToSpecialString (Real *a, char *psz, int fPlus)
VP_EXPORT void	VpToString (Real *a, char *psz, size_t fFmt, int fPlus)
VP_EXPORT void	VpToFString (Real *a, char *psz, size_t fFmt, int fPlus)
VP_EXPORT int	VpCtoV (Real *a, const char *int_chr, size_t ni, const char *frac, size_t nf, const char *exp_chr, size_t ne)
VP_EXPORT int	VpVtoD (double *d, SIGNED_VALUE *e, Real *m)
VP_EXPORT void	VpDtoV (Real *m, double d)
VP_EXPORT int	VpSqrt (Real *y, Real *x)
VP_EXPORT int	VpActiveRound (Real *y, Real *x, unsigned short f, ssize_t il)
VP_EXPORT int	VpMidRound (Real *y, unsigned short f, ssize_t nf)
VP_EXPORT int	VpLeftRound (Real *y, unsigned short f, ssize_t nf)
VP_EXPORT void	VpFrac (Real *y, Real *x)
VP_EXPORT int	VpPower (Real *y, Real *x, SIGNED_VALUE n)
VP_EXPORT Real *	VpOne (void)

Variables
VALUE	rb_cBigDecimal

Macro Definition Documentation

Abs

#define Abs

(

a

)

(((a)>= 0)?(a):(-(a)))

Definition at line 343 of file bigdecimal.h.

BDIGIT

#define BDIGIT   uint16_t

Definition at line 48 of file bigdecimal.h.

BDIGIT_DBL

#define BDIGIT_DBL   uint32_t

Definition at line 49 of file bigdecimal.h.

BDIGIT_DBL_SIGNED

#define BDIGIT_DBL_SIGNED   int32_t

Definition at line 50 of file bigdecimal.h.

FLEXIBLE_ARRAY_SIZE

#define FLEXIBLE_ARRAY_SIZE   1

Definition at line 235 of file bigdecimal.h.

Max

#define Max	(		a,
			b
	)		(((a)>(b))?(a):(b))

Definition at line 344 of file bigdecimal.h.

Min

#define Min	(		a,
			b
	)		(((a)>(b))?(b):(a))

Definition at line 345 of file bigdecimal.h.

PRI_BDIGIT_DBL_PREFIX

#define PRI_BDIGIT_DBL_PREFIX   ""

Definition at line 53 of file bigdecimal.h.

PRI_BDIGIT_PREFIX

#define PRI_BDIGIT_PREFIX   "h"

Definition at line 52 of file bigdecimal.h.

PRIdBDIGIT

#define PRIdBDIGIT   PRI_BDIGIT_PREFIX"d"

Definition at line 56 of file bigdecimal.h.

PRIdBDIGIT_DBL

#define PRIdBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"d"

Definition at line 63 of file bigdecimal.h.

PRIiBDIGIT

#define PRIiBDIGIT   PRI_BDIGIT_PREFIX"i"

Definition at line 57 of file bigdecimal.h.

PRIiBDIGIT_DBL

#define PRIiBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"i"

Definition at line 64 of file bigdecimal.h.

PRIoBDIGIT

#define PRIoBDIGIT   PRI_BDIGIT_PREFIX"o"

Definition at line 58 of file bigdecimal.h.

PRIoBDIGIT_DBL

#define PRIoBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"o"

Definition at line 65 of file bigdecimal.h.

PRIuBDIGIT

#define PRIuBDIGIT   PRI_BDIGIT_PREFIX"u"

Definition at line 59 of file bigdecimal.h.

PRIuBDIGIT_DBL

#define PRIuBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"u"

Definition at line 66 of file bigdecimal.h.

PRIxBDIGIT

#define PRIxBDIGIT   PRI_BDIGIT_PREFIX"x"

Definition at line 60 of file bigdecimal.h.

PRIXBDIGIT

#define PRIXBDIGIT   PRI_BDIGIT_PREFIX"X"

Definition at line 61 of file bigdecimal.h.

PRIxBDIGIT_DBL

#define PRIxBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"x"

Definition at line 67 of file bigdecimal.h.

PRIXBDIGIT_DBL

#define PRIXBDIGIT_DBL   PRI_BDIGIT_DBL_PREFIX"X"

Definition at line 68 of file bigdecimal.h.

RMPD_BASE

#define RMPD_BASE   ((BDIGIT)10000U)

Definition at line 175 of file bigdecimal.h.

RMPD_COMPONENT_FIGURES

#define RMPD_COMPONENT_FIGURES   4

Definition at line 174 of file bigdecimal.h.

RMPD_EXCEPTION_MODE_DEFAULT

#define RMPD_EXCEPTION_MODE_DEFAULT   0U

Definition at line 208 of file bigdecimal.h.

RMPD_ROUNDING_MODE_DEFAULT

#define RMPD_ROUNDING_MODE_DEFAULT   VP_ROUND_HALF_UP

Definition at line 220 of file bigdecimal.h.

RUBY_NO_OLD_COMPATIBILITY

#define RUBY_NO_OLD_COMPATIBILITY

Definition at line 12 of file bigdecimal.h.

SIZEOF_BDIGITS

#define SIZEOF_BDIGITS   2

Definition at line 51 of file bigdecimal.h.

SZ_INF

#define SZ_INF   "Infinity"

Definition at line 186 of file bigdecimal.h.

SZ_NaN

#define SZ_NaN   "NaN"

Definition at line 185 of file bigdecimal.h.

SZ_NINF

#define SZ_NINF   "-Infinity"

Definition at line 188 of file bigdecimal.h.

SZ_PINF

#define SZ_PINF   "+Infinity"

Definition at line 187 of file bigdecimal.h.

vabs

#define vabs   abs

Definition at line 155 of file bigdecimal.h.

VP_EXCEPTION_ALL

#define VP_EXCEPTION_ALL   ((unsigned short)0x00FF)

Definition at line 197 of file bigdecimal.h.

VP_EXCEPTION_INFINITY

#define VP_EXCEPTION_INFINITY   ((unsigned short)0x0001)

Definition at line 198 of file bigdecimal.h.

VP_EXCEPTION_MEMORY

#define VP_EXCEPTION_MEMORY   ((unsigned short)0x0040)

Definition at line 206 of file bigdecimal.h.

VP_EXCEPTION_NaN

#define VP_EXCEPTION_NaN   ((unsigned short)0x0002)

Definition at line 199 of file bigdecimal.h.

VP_EXCEPTION_OP

#define VP_EXCEPTION_OP   ((unsigned short)0x0020)

Definition at line 205 of file bigdecimal.h.

VP_EXCEPTION_OVERFLOW

#define VP_EXCEPTION_OVERFLOW   ((unsigned short)0x0001) /* 0x0008) */

Definition at line 201 of file bigdecimal.h.

VP_EXCEPTION_UNDERFLOW

#define VP_EXCEPTION_UNDERFLOW   ((unsigned short)0x0004)

Definition at line 200 of file bigdecimal.h.

VP_EXCEPTION_ZERODIVIDE

#define VP_EXCEPTION_ZERODIVIDE   ((unsigned short)0x0010)

Definition at line 202 of file bigdecimal.h.

VP_EXPORT

#define VP_EXPORT   static

Definition at line 194 of file bigdecimal.h.

VP_ROUND_CEIL

#define VP_ROUND_CEIL   5

Definition at line 216 of file bigdecimal.h.

VP_ROUND_DOWN

#define VP_ROUND_DOWN   2

Definition at line 213 of file bigdecimal.h.

VP_ROUND_FLOOR

#define VP_ROUND_FLOOR   6

Definition at line 217 of file bigdecimal.h.

VP_ROUND_HALF_DOWN

#define VP_ROUND_HALF_DOWN   4

Definition at line 215 of file bigdecimal.h.

VP_ROUND_HALF_EVEN

#define VP_ROUND_HALF_EVEN   7

Definition at line 218 of file bigdecimal.h.

VP_ROUND_HALF_UP

#define VP_ROUND_HALF_UP   3

Definition at line 214 of file bigdecimal.h.

VP_ROUND_MODE

#define VP_ROUND_MODE   ((unsigned short)0x0100)

Definition at line 211 of file bigdecimal.h.

VP_ROUND_UP

#define VP_ROUND_UP   1

Definition at line 212 of file bigdecimal.h.

VP_SIGN_NaN

#define VP_SIGN_NaN   0 /* NaN */

Definition at line 222 of file bigdecimal.h.

VP_SIGN_NEGATIVE_FINITE

#define VP_SIGN_NEGATIVE_FINITE   -2 /* Negative finite number */

Definition at line 226 of file bigdecimal.h.

VP_SIGN_NEGATIVE_INFINITE

#define VP_SIGN_NEGATIVE_INFINITE   -3 /* Negative infinite number */

Definition at line 228 of file bigdecimal.h.

VP_SIGN_NEGATIVE_ZERO

#define VP_SIGN_NEGATIVE_ZERO   -1 /* Negative zero */

Definition at line 224 of file bigdecimal.h.

VP_SIGN_POSITIVE_FINITE

#define VP_SIGN_POSITIVE_FINITE   2 /* Positive finite number */

Definition at line 225 of file bigdecimal.h.

VP_SIGN_POSITIVE_INFINITE

#define VP_SIGN_POSITIVE_INFINITE   3 /* Positive infinite number */

Definition at line 227 of file bigdecimal.h.

VP_SIGN_POSITIVE_ZERO

#define VP_SIGN_POSITIVE_ZERO   1 /* Positive zero */

Definition at line 223 of file bigdecimal.h.

VpBaseFig

#define VpBaseFig

(

)

rmpd_component_figures()

Definition at line 283 of file bigdecimal.h.

VpBaseVal

#define VpBaseVal

(

)

rmpd_base_value()

Definition at line 285 of file bigdecimal.h.

VpChangeSign

#define VpChangeSign	(		a,
			s
	)		{if((s)>0) (a)->sign=(short)Abs((ssize_t)(a)->sign);else (a)->sign=-(short)Abs((ssize_t)(a)->sign);}

Definition at line 356 of file bigdecimal.h.

VpDblFig

#define VpDblFig

(

)

rmpd_double_figures()

Definition at line 284 of file bigdecimal.h.

VpExponent

#define VpExponent

(

a

)

(a->exponent)

Definition at line 385 of file bigdecimal.h.

VpGetFlag

#define VpGetFlag

(

a

)

((a)->flag)

Definition at line 349 of file bigdecimal.h.

VpGetSign

#define VpGetSign

(

a

)

(((a)->sign>0)?1:(-1))

Definition at line 354 of file bigdecimal.h.

VpHasVal

#define VpHasVal

(

a

)

(a->frac[0])

Definition at line 383 of file bigdecimal.h.

VpIsDef

#define VpIsDef

(

a

)

( !(VpIsNaN(a)||VpIsInf(a)) )

Definition at line 379 of file bigdecimal.h.

VpIsInf

#define VpIsInf

(

a

)

(VpIsPosInf(a) || VpIsNegInf(a))

Definition at line 378 of file bigdecimal.h.

VpIsNaN

#define VpIsNaN

(

a

)

((a)->sign==VP_SIGN_NaN)

Definition at line 372 of file bigdecimal.h.

VpIsNegInf

#define VpIsNegInf

(

a

)

((a)->sign==VP_SIGN_NEGATIVE_INFINITE)

Definition at line 377 of file bigdecimal.h.

VpIsNegZero

#define VpIsNegZero

(

a

)

((a)->sign==VP_SIGN_NEGATIVE_ZERO)

Definition at line 365 of file bigdecimal.h.

VpIsOne

#define VpIsOne

(

a

)

((a->Prec==1)&&(a->frac[0]==1)&&(a->exponent==1))

Definition at line 384 of file bigdecimal.h.

VpIsPosInf

#define VpIsPosInf

(

a

)

((a)->sign==VP_SIGN_POSITIVE_INFINITE)

Definition at line 376 of file bigdecimal.h.

VpIsPosZero

#define VpIsPosZero

(

a

)

((a)->sign==VP_SIGN_POSITIVE_ZERO)

Definition at line 364 of file bigdecimal.h.

VpIsZero

#define VpIsZero

(

a

)

(VpIsPosZero(a) || VpIsNegZero(a))

Definition at line 366 of file bigdecimal.h.

VpMaxPrec

#define VpMaxPrec

(

a

)

((a)->MaxPrec)

Definition at line 347 of file bigdecimal.h.

VpPrec

#define VpPrec

(

a

)

((a)->Prec)

Definition at line 348 of file bigdecimal.h.

VpSetInf

#define VpSetInf	(		a,
			s
	)		(void)(((s)>0)?VpSetPosInf(a):VpSetNegInf(a))

Definition at line 382 of file bigdecimal.h.

VpSetNaN

#define VpSetNaN

(

a

)

((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NaN)

Definition at line 373 of file bigdecimal.h.

VpSetNegInf

#define VpSetNegInf

(

a

)

((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_INFINITE)

Definition at line 381 of file bigdecimal.h.

VpSetNegZero

#define VpSetNegZero

(

a

)

((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_ZERO)

Definition at line 368 of file bigdecimal.h.

VpSetOne

#define VpSetOne

(

a

)

{(a)->Prec=(a)->exponent=(a)->frac[0]=1;(a)->sign=VP_SIGN_POSITIVE_FINITE;}

Definition at line 361 of file bigdecimal.h.

VpSetPosInf

#define VpSetPosInf

(

a

)

((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_INFINITE)

Definition at line 380 of file bigdecimal.h.

VpSetPosZero

#define VpSetPosZero

(

a

)

((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_ZERO)

Definition at line 367 of file bigdecimal.h.

VpSetSign

#define VpSetSign	(		a,
			s
	)		{if((s)>0) (a)->sign=(short)VP_SIGN_POSITIVE_FINITE;else (a)->sign=(short)VP_SIGN_NEGATIVE_FINITE;}

Definition at line 358 of file bigdecimal.h.

VpSetZero

#define VpSetZero	(		a,
			s
	)		(void)(((s)>0)?VpSetPosZero(a):VpSetNegZero(a))

Definition at line 369 of file bigdecimal.h.

Function Documentation

VpActiveRound()

VP_EXPORT int VpActiveRound	(	Real *	y,
		Real *	x,
		unsigned short	f,
		ssize_t	il
	)

Definition at line 6305 of file bigdecimal.c.

References f, VpAsgn(), and VpMidRound().

VpAddSub()

VP_EXPORT size_t VpAddSub	(	Real *	c,
		Real *	a,
		Real *	b,
		int	operation
	)

Definition at line 4388 of file bigdecimal.c.

References BDIGIT.

Referenced by VpSqrt().

VpAlloc()

VP_EXPORT Real* VpAlloc	(	size_t	mx,
		const char *	szVal,
		int	strict_p,
		int	exc
	)

Definition at line 4111 of file bigdecimal.c.

References BASE_FIG, buf, ISDIGIT, ISSPACE, Max, Real::MaxPrec, ne, NULL, PRIsVALUE, rb_eArgError, rb_raise(), rb_str_new2, rb_str_resize(), rb_str_tmp_new(), rmpd_parse_special_string(), RSTRING_PTR, str, strlen(), VpAllocReal, VpCtoV(), VpGetPrecLimit(), and VpSetZero.

Referenced by VpPower(), and VpSqrt().

VpAsgn()

VP_EXPORT size_t VpAsgn	(	Real *	c,
		Real *	a,
		int	isw
	)

Definition at line 4344 of file bigdecimal.c.

References BDIGIT, Real::exponent, Real::frac, Real::MaxPrec, memcpy, Real::Prec, VpGetSign, VpIsInf, VpIsNaN, VpIsZero, VpSetInf, VpSetNaN, and VpSetSign.

Referenced by VpActiveRound(), VpFrac(), VpPower(), and VpSqrt().

VpComp()

VP_EXPORT int VpComp	(	Real *	a,
		Real *	b
	)

Definition at line 5225 of file bigdecimal.c.

References Real::exponent, Real::frac, Real::Prec, Real::sign, VpGetSign, VpIsDef, VpIsNaN, and VpIsZero.

VpCreateRbObject()

VP_EXPORT Real* VpCreateRbObject	(	size_t	mx,
		const char *	str
	)

Definition at line 655 of file bigdecimal.c.

References rb_cBigDecimal, str, and VpNewRbClass().

VpCtoV()

VP_EXPORT int VpCtoV	(	Real *	a,
		const char *	int_chr,
		size_t	ni,
		const char *	frac,
		size_t	nf,
		const char *	exp_chr,
		size_t	ne
	)

Definition at line 5663 of file bigdecimal.c.

Referenced by VpAlloc().

VpDivd()

VP_EXPORT size_t VpDivd	(	Real *	c,
		Real *	r,
		Real *	a,
		Real *	b
	)

Definition at line 4972 of file bigdecimal.c.

References BDIGIT, BDIGIT_DBL, and VpSetNaN.

Referenced by VpPower(), and VpSqrt().

VpDtoV()

VP_EXPORT void VpDtoV	(	Real *	m,
		double	d
	)

Definition at line 5887 of file bigdecimal.c.

References BASE, BDIGIT, Real::exponent, Real::frac, isinf(), isnan, Real::MaxPrec, ne, Real::Prec, SIGNED_VALUE, VpSetNaN, VpSetNegInf, VpSetPosInf, VpSetSign, and VpSetZero.

Referenced by VpSqrt().

VpException()

VP_EXPORT int VpException	(	unsigned short	f,
		const char *	str,
		int	always
	)

Definition at line 3809 of file bigdecimal.c.

Referenced by VpMemAlloc(), VpMemRealloc(), and VpSqrt().

VpExponent10()

VP_EXPORT ssize_t VpExponent10

(

Real *

a

)

Definition at line 5450 of file bigdecimal.c.

References BASE1, BASE_FIG, Real::exponent, Real::frac, and VpHasVal.

VpFrac()

VP_EXPORT void VpFrac	(	Real *	y,
		Real *	x
	)

Definition at line 6400 of file bigdecimal.c.

References Real::exponent, Real::frac, Real::MaxPrec, Min, Real::Prec, VpAsgn(), VpGetSign, VpHasVal, VpSetSign, and VpSetZero.

VpFree()

VP_EXPORT void VpFree

(

Real *

pv

)

Definition at line 3599 of file bigdecimal.c.

References NULL, and xfree.

VpGetDoubleNaN()

VP_EXPORT double VpGetDoubleNaN

(

void

)

Definition at line 3774 of file bigdecimal.c.

References nan().

Referenced by VpVtoD().

VpGetDoubleNegInf()

VP_EXPORT double VpGetDoubleNegInf

(

void

)

Definition at line 3786 of file bigdecimal.c.

References HUGE_VAL.

Referenced by VpVtoD().

VpGetDoubleNegZero()

VP_EXPORT double VpGetDoubleNegZero

(

void

)

Definition at line 3792 of file bigdecimal.c.

Referenced by VpInit(), and VpVtoD().

VpGetDoublePosInf()

VP_EXPORT double VpGetDoublePosInf

(

void

)

Definition at line 3780 of file bigdecimal.c.

References HUGE_VAL.

Referenced by VpVtoD().

VpGetPrecLimit()

VP_EXPORT size_t VpGetPrecLimit

(

void

)

Definition at line 3664 of file bigdecimal.c.

References rb_thread_current(), and rb_thread_local_aref().

Referenced by VpAlloc(), and VpSetPrecLimit().

VpGetRoundMode()

VP_EXPORT unsigned short VpGetRoundMode

(

void

)

Definition at line 3699 of file bigdecimal.c.

References rb_thread_current(), and rb_thread_local_aref().

Referenced by VpSetRoundMode().

VpInit()

VP_EXPORT size_t VpInit

(

BDIGIT

BaseVal

)

Definition at line 3980 of file bigdecimal.c.

References VpGetDoubleNegZero().

VpIsRoundMode()

VP_EXPORT int VpIsRoundMode

(

unsigned short

n

)

Definition at line 3715 of file bigdecimal.c.

References VP_ROUND_CEIL, VP_ROUND_DOWN, VP_ROUND_FLOOR, VP_ROUND_HALF_DOWN, VP_ROUND_HALF_EVEN, VP_ROUND_HALF_UP, and VP_ROUND_UP.

Referenced by VpSetRoundMode().

VpLeftRound()

VP_EXPORT int VpLeftRound	(	Real *	y,
		unsigned short	f,
		ssize_t	nf
	)

Definition at line 6290 of file bigdecimal.c.

References BASE_FIG, BDIGIT, f, Real::frac, VpExponent, VpHasVal, and VpMidRound().

VpMemAlloc()

VP_EXPORT void* VpMemAlloc

(

size_t

mb

)

Definition at line 3575 of file bigdecimal.c.

References VP_EXCEPTION_MEMORY, VpException(), and xmalloc.

VpMemRealloc()

VP_EXPORT void* VpMemRealloc	(	void *	ptr,
		size_t	mb
	)

Definition at line 3589 of file bigdecimal.c.

References ptr, VP_EXCEPTION_MEMORY, VpException(), and xrealloc.

VpMidRound()

VP_EXPORT int VpMidRound	(	Real *	y,
		unsigned short	f,
		ssize_t	nf
	)

Definition at line 6128 of file bigdecimal.c.

References BASE, BASE_FIG, BDIGIT, BIGDECIMAL_NEGATIVE_P, BIGDECIMAL_POSITIVE_P, div, Real::exponent, f, Real::frac, Real::Prec, VP_ROUND_CEIL, VP_ROUND_DOWN, VP_ROUND_FLOOR, VP_ROUND_HALF_DOWN, VP_ROUND_HALF_EVEN, VP_ROUND_HALF_UP, VP_ROUND_UP, VpGetSign, and VpSetZero.

Referenced by VpActiveRound(), and VpLeftRound().

VpMult()

VP_EXPORT size_t VpMult	(	Real *	c,
		Real *	a,
		Real *	b
	)

Definition at line 4843 of file bigdecimal.c.

References BDIGIT, and BDIGIT_DBL.

Referenced by VpPower(), and VpSqrt().

VpNewRbClass()

VP_EXPORT Real* VpNewRbClass	(	size_t	mx,
		char const *	str,
		VALUE	klass
	)

Definition at line 644 of file bigdecimal.c.

References TypedData_Wrap_Struct.

Referenced by VpCreateRbObject().

VpNumOfChars()

VP_EXPORT size_t VpNumOfChars	(	Real *	vp,
		const char *	pszFmt
	)

Definition at line 3936 of file bigdecimal.c.

References BASE_FIG, Real::exponent, NULL, Real::Prec, SIGNED_VALUE, and VpIsDef.

VpOne()

VP_EXPORT Real* VpOne

(

void

)

Definition at line 4008 of file bigdecimal.c.

VpPower()

VP_EXPORT int VpPower	(	Real *	y,
		Real *	x,
		SIGNED_VALUE	n
	)

Definition at line 6448 of file bigdecimal.c.

References BASE_FIG, BIGDECIMAL_POSITIVE_P, Real::exponent, Real::frac, Real::MaxPrec, NULL, Real::Prec, SIGNED_VALUE, VpAlloc(), VpAsgn(), VpDivd(), VpGetSign, VpIsInf, VpIsNaN, VpIsPosInf, VpIsZero, VpMult(), VpSetInf, VpSetNaN, VpSetOne, VpSetSign, and VpSetZero.

VpSetPrecLimit()

VP_EXPORT size_t VpSetPrecLimit

(

size_t

n

)

Definition at line 3680 of file bigdecimal.c.

References rmpd_set_thread_local_precision_limit, and VpGetPrecLimit().

VpSetRoundMode()

VP_EXPORT unsigned short VpSetRoundMode

(

unsigned short

n

)

Definition at line 3733 of file bigdecimal.c.

References rmpd_set_thread_local_rounding_mode, VpGetRoundMode(), and VpIsRoundMode().

VpSqrt()

VP_EXPORT int VpSqrt	(	Real *	y,
		Real *	x
	)

Definition at line 6019 of file bigdecimal.c.

References BASE, BASE_FIG, BIGDECIMAL_NEGATIVE_P, DBLE_FIG, Real::exponent, f, if(), maxnr, Real::MaxPrec, Min, NULL, SIGNED_VALUE, VP_EXCEPTION_OP, VpAddSub(), VpAlloc(), VpAsgn(), VpDivd(), VpDtoV(), VpException(), VpIsNaN, VpIsOne, VpIsPosInf, VpIsZero, VpMult(), VpSetNaN, VpSetOne, and VpVtoD().

VpSzMantissa()

VP_EXPORT void VpSzMantissa	(	Real *	a,
		char *	psz
	)

Definition at line 5467 of file bigdecimal.c.

References BASE1, BDIGIT_DBL, BIGDECIMAL_NEGATIVE_P, Real::frac, Real::Prec, strlen(), SZ_INF, SZ_NaN, SZ_NINF, VpIsNaN, VpIsNegInf, VpIsPosInf, VpIsPosZero, and VpIsZero.

VpToFString()

VP_EXPORT void VpToFString	(	Real *	a,
		char *	psz,
		size_t	fFmt,
		int	fPlus
	)

Definition at line 5597 of file bigdecimal.c.

References BASE, BASE1, BASE_FIG, BDIGIT, BIGDECIMAL_NEGATIVE_P, Real::exponent, Real::frac, Real::Prec, strlen(), and VpToSpecialString().

VpToSpecialString()

VP_EXPORT int VpToSpecialString	(	Real *	a,
		char *	psz,
		int	fPlus
	)

Definition at line 5514 of file bigdecimal.c.

References SZ_INF, SZ_NaN, SZ_NINF, VpIsNaN, VpIsNegInf, VpIsPosInf, VpIsPosZero, and VpIsZero.

Referenced by VpToFString().

VpToString()

VP_EXPORT void VpToString	(	Real *	a,
		char *	psz,
		size_t	fFmt,
		int	fPlus
	)

Definition at line 5549 of file bigdecimal.c.

References BDIGIT.

VpVtoD()

VP_EXPORT int VpVtoD	(	double *	d,
		SIGNED_VALUE *	e,
		Real *	m
	)

Definition at line 5823 of file bigdecimal.c.

References BASE, BASE_FIG, DBLE_FIG, div, Real::exponent, f, Real::frac, Min, Real::Prec, SIGNED_VALUE, VpGetDoubleNaN(), VpGetDoubleNegInf(), VpGetDoubleNegZero(), VpGetDoublePosInf(), VpGetSign, VpIsNaN, VpIsNegInf, VpIsNegZero, VpIsPosInf, and VpIsPosZero.

Referenced by VpSqrt().

Variable Documentation

rb_cBigDecimal

VALUE rb_cBigDecimal

extern

Definition at line 45 of file bigdecimal.c.

Referenced by VpCreateRbObject().