Ruby: ext/bigdecimal/bigdecimal.h File Reference


Data Structures
struct	Real
Defines
#define	SZ_NaN "NaN"
#define	SZ_INF "Infinity"
#define	SZ_PINF "+Infinity"
#define	SZ_NINF "-Infinity"
#define	VP_EXPORT static
#define	U_LONG unsigned long
#define	S_LONG long
#define	U_INT unsigned int
#define	S_INT int
#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)
#define	VP_EXCEPTION_ZERODIVIDE ((unsigned short)0x0010)
#define	VP_EXCEPTION_OP ((unsigned short)0x0020)
#define	VP_EXCEPTION_MEMORY ((unsigned short)0x0040)
#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	VP_SIGN_NaN 0
#define	VP_SIGN_POSITIVE_ZERO 1
#define	VP_SIGN_NEGATIVE_ZERO -1
#define	VP_SIGN_POSITIVE_FINITE 2
#define	VP_SIGN_NEGATIVE_FINITE -2
#define	VP_SIGN_POSITIVE_INFINITE 3
#define	VP_SIGN_NEGATIVE_INFINITE -3
#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((S_LONG)(a)->sign);else (a)->sign=-(short)Abs((S_LONG)(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)->frac[0]=(a)->Prec=(a)->exponent=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) ( ((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) ( ((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 (U_LONG mx, char *str, VALUE klass)
VP_EXPORT Real *	VpCreateRbObject (U_LONG mx, const char *str)
VP_EXPORT U_LONG	VpBaseFig (void)
VP_EXPORT U_LONG	VpDblFig (void)
VP_EXPORT U_LONG	VpBaseVal (void)
VP_EXPORT double	VpGetDoubleNaN (void)
VP_EXPORT double	VpGetDoublePosInf (void)
VP_EXPORT double	VpGetDoubleNegInf (void)
VP_EXPORT double	VpGetDoubleNegZero (void)
VP_EXPORT U_LONG	VpGetPrecLimit (void)
VP_EXPORT U_LONG	VpSetPrecLimit (U_LONG n)
VP_EXPORT int	VpIsRoundMode (unsigned long n)
VP_EXPORT unsigned long	VpGetRoundMode (void)
VP_EXPORT unsigned long	VpSetRoundMode (unsigned long n)
VP_EXPORT int	VpException (unsigned short f, const char *str, int always)
VP_EXPORT U_LONG	VpNumOfChars (Real vp, const char pszFmt)
VP_EXPORT U_LONG	VpInit (U_LONG BaseVal)
VP_EXPORT void *	VpMemAlloc (U_LONG mb)
VP_EXPORT void	VpFree (Real *pv)
VP_EXPORT Real *	VpAlloc (U_LONG mx, const char *szVal)
VP_EXPORT U_LONG	VpAsgn (Real c, Real a, int isw)
VP_EXPORT U_LONG	VpAddSub (Real c, Real a, Real *b, int operation)
VP_EXPORT U_LONG	VpMult (Real c, Real a, Real *b)
VP_EXPORT U_LONG	VpDivd (Real c, Real r, Real a, Real b)
VP_EXPORT int	VpComp (Real a, Real b)
VP_EXPORT S_LONG	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, int fFmt, int fPlus)
VP_EXPORT void	VpToFString (Real a, char psz, int fFmt, int fPlus)
VP_EXPORT int	VpCtoV (Real a, const char int_chr, U_LONG ni, const char frac, U_LONG nf, const char exp_chr, U_LONG ne)
VP_EXPORT int	VpVtoD (double d, S_LONG 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, int f, S_LONG il)
VP_EXPORT int	VpMidRound (Real *y, int f, S_LONG nf)
VP_EXPORT int	VpLeftRound (Real *y, int f, S_LONG nf)
VP_EXPORT void	VpFrac (Real y, Real x)
VP_EXPORT int	VpPower (Real y, Real x, S_INT n)
VP_EXPORT Real *	VpOne (void)