mirror of
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Initial revision
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2244 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu
parent
27aff97238
commit
89646912c2
4 changed files with 5180 additions and 0 deletions
4674
ext/bigfloat/bigfloat.c
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4674
ext/bigfloat/bigfloat.c
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File diff suppressed because it is too large
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503
ext/bigfloat/bigfloat.h
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503
ext/bigfloat/bigfloat.h
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/*
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*
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* Ruby BIGFLOAT(Variable Precision) extension library.
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*
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* Version 1.1.7(2001/08/27)
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* Version 1.1.6(2001/03/28)
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*
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* Copyright(C) 1999 by Shigeo Kobayashi(shigeo@tinyforest.gr.jp)
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file
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* of this BigFloat distribution.
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*
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*/
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#ifndef ____BIG_FLOAT__H____
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#define ____BIG_FLOAT__H____
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*
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* #define VP_EXPORT other than static to let VP_ routines
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* be called from outside of this module.
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*/
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#define VP_EXPORT static
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#define U_LONG unsigned long
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#define S_LONG long
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#define U_INT unsigned int
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#define S_INT int
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/* Exception codes */
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#define VP_EXCEPTION_ALL ((unsigned short)0xFFFF)
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#define VP_EXCEPTION_INFINITY ((unsigned short)0x0001)
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#define VP_EXCEPTION_NaN ((unsigned short)0x0002)
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#define VP_EXCEPTION_UNDERFLOW ((unsigned short)0x0004)
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#define VP_EXCEPTION_OVERFLOW ((unsigned short)0x0001) /* 0x0008) */
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#define VP_EXCEPTION_ZERODIVIDE ((unsigned short)0x0001) /* 0x0010) */
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/* Following 2 exceptions cann't controlled by user */
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#define VP_EXCEPTION_OP ((unsigned short)0x0020)
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#define VP_EXCEPTION_MEMORY ((unsigned short)0x0040)
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#define VP_SIGN_NaN 0 /* NaN */
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#define VP_SIGN_POSITIVE_ZERO 1 /* Positive zero */
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#define VP_SIGN_NEGATIVE_ZERO -1 /* Negative zero */
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#define VP_SIGN_POSITIVE_FINITE 2 /* Positive finite number */
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#define VP_SIGN_NEGATIVE_FINITE -2 /* Negative finite number */
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#define VP_SIGN_POSITIVE_INFINITE 3 /* Positive infinite number */
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#define VP_SIGN_NEGATIVE_INFINITE -3 /* Negative infinite number */
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/*
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* VP representation
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* r = 0.xxxxxxxxx *BASE**exponent
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*/
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typedef struct {
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VALUE obj; /* Back pointer(VALUE) for Ruby object. */
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U_LONG MaxPrec; /* Maximum precision size */
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/* This is the actual size of pfrac[] */
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/*(frac[0] to frac[MaxPrec] are available). */
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U_LONG Prec; /* Current precision size. */
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/* This indicates how much the. */
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/* the array frac[] is actually used. */
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S_INT exponent;/* Exponent part. */
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short sign; /* Attributes of the value. */
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/*
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* ==0 : NaN
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* 1 : Positive zero
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* -1 : Negative zero
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* 2 : Positive number
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* -2 : Negative number
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* 3 : Positive infinite number
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* -3 : Negative infinite number
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*/
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short flag; /* Not used in vp_routines,space for user. */
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U_LONG frac[1]; /* Pointer to array of fraction part. */
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} Real;
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/*
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* ------------------
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* EXPORTables.
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* ------------------
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*/
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VP_EXPORT Real *
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#ifdef HAVE_STDARG_PROTOTYPES
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VpNewRbClass(U_LONG mx,char *str,VALUE klass);
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#else
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VpNewRbClass();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT Real *
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#ifdef HAVE_STDARG_PROTOTYPES
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VpCreateRbObject(U_LONG mx,char *str);
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#else
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VpCreateRbObject();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT S_LONG VpBaseFig();
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VP_EXPORT S_LONG VpDblFig();
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VP_EXPORT U_LONG VpBaseVal();
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/* Zero,Inf,NaN (isinf(),isnan() used to check) */
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VP_EXPORT double VpGetDoubleNaN();
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VP_EXPORT double VpGetDoublePosInf();
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VP_EXPORT double VpGetDoubleNegInf();
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VP_EXPORT double VpGetDoubleNegZero();
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/* These 2 functions added at v1.1.7 */
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VP_EXPORT U_LONG VpGetPrecLimit();
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#ifdef HAVE_STDARG_PROTOTYPES
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VP_EXPORT U_LONG VpSetPrecLimit(U_LONG n);
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#else
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VP_EXPORT U_LONG VpSetPrecLimit();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpException(unsigned short f,char *str,int always);
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#else
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VpException();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpIsNegDoubleZero(double v);
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#else
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VpIsNegDoubleZero();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT U_LONG
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#ifdef HAVE_STDARG_PROTOTYPES
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VpNumOfChars(Real *vp);
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#else
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VpNumOfChars();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT U_LONG
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#ifdef HAVE_STDARG_PROTOTYPES
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VpInit(U_LONG BaseVal);
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#else
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VpInit();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpFree(Real *pv);
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#else
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VpFree();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT Real *
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#ifdef HAVE_STDARG_PROTOTYPES
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VpAlloc(U_LONG mx, char *szVal);
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#else
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VpAlloc();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpAsgn(Real *c,Real *a,int isw);
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#else
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VpAsgn();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpAddSub(Real *c,Real *a,Real *b,int operation);
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#else
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VpAddSub();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpMult(Real *c,Real *a,Real *b);
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#else
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VpMult();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpDivd(Real *c,Real *r,Real *a,Real *b);
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#else
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VpDivd(c, r, a, b);
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpComp(Real *a,Real *b);
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#else
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VpComp();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT S_LONG
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#ifdef HAVE_STDARG_PROTOTYPES
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VpExponent10(Real *a);
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#else
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VpExponent10();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpSzMantissa(Real *a,char *psz);
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#else
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VpSzMantissa();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpToString(Real *a,char *psz,int fFmt);
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#else
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VpToString();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpCtoV(Real *a,char *int_chr,U_LONG ni,char *frac,U_LONG nf,char *exp_chr,U_LONG ne);
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#else
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VpCtoV();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpVtoD(double *d,U_LONG *e,Real *m);
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#else
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VpVtoD();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpDtoV(Real *m,double d);
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#else
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VpDtoV();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpItoV(Real *m,S_INT ival);
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#else
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VpItoV();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpSqrt(Real *y,Real *x);
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#else
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VpSqrt();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpRound(Real *y,Real *x,int sw,int f,int il);
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#else
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VpRound();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpFrac(Real *y,Real *x);
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#else
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VpFrac();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpPower(Real *y,Real *x,S_INT n);
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#else
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VpPower();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpPai(Real *y);
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#else
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VpPai();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpExp1(Real *y);
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#else
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VpExp1();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpExp(Real *y,Real *x);
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#else
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VpExp();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT void
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#ifdef HAVE_STDARG_PROTOTYPES
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VpSinCos(Real *psin,Real *pcos,Real *x);
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#else
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VpSinCos();
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#endif /* HAVE_STDARG_PROTOTYPES */
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VP_EXPORT int
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#ifdef HAVE_STDARG_PROTOTYPES
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VPrint(FILE *fp,char *cntl_chr,Real *a);
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#else
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VPrint();
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#endif /* HAVE_STDARG_PROTOTYPES */
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/*
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* ------------------
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* static routines.
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* ------------------
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*/
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static int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpIsDefOP(Real *c,Real *a,Real *b,int sw);
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#else
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VpIsDefOP();
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#endif /* HAVE_STDARG_PROTOTYPES */
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static int
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#ifdef HAVE_STDARG_PROTOTYPES
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AddExponent(Real *a,S_INT n);
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#else
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AddExponent();
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#endif /* HAVE_STDARG_PROTOTYPES */
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static void *
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#ifdef HAVE_STDARG_PROTOTYPES
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VpMemAlloc(U_LONG mb);
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#else
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VpMemAlloc();
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#endif /* HAVE_STDARG_PROTOTYPES */
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|
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static unsigned short VpGetException();
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|
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static void
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#ifdef HAVE_STDARG_PROTOTYPES
|
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VpSetException(unsigned short f);
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#else
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VpSetException();
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static int
|
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#ifdef HAVE_STDARG_PROTOTYPES
|
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MemCmp( unsigned char *a,unsigned char *b,int n);
|
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#else
|
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MemCmp(a,b,n);
|
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpAddAbs(Real *a,Real *b,Real *c);
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#else
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VpAddAbs();
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static int
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#ifdef HAVE_STDARG_PROTOTYPES
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VpSubAbs(Real *a,Real *b,Real *c);
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#else
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VpSubAbs();
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static U_LONG
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#ifdef HAVE_STDARG_PROTOTYPES
|
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VpSetPTR(Real *a,Real *b,Real *c,U_LONG *a_pos,U_LONG *b_pos,U_LONG *c_pos,U_LONG *av,U_LONG *bv);
|
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#else
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VpSetPTR();
|
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static int
|
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#ifdef HAVE_STDARG_PROTOTYPES
|
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VpNmlz(Real *a);
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#else
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VpNmlz();
|
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static void
|
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#ifdef HAVE_STDARG_PROTOTYPES
|
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VpFormatSt(char *psz,S_INT fFmt);
|
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#else
|
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VpFormatSt();
|
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#endif /* HAVE_STDARG_PROTOTYPES */
|
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|
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static int
|
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#ifdef HAVE_STDARG_PROTOTYPES
|
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VpRdup(Real *m);
|
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#else
|
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VpRdup();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static U_LONG
|
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#ifdef HAVE_STDARG_PROTOTYPES
|
||||
SkipWhiteChar(char *szVal);
|
||||
#else
|
||||
SkipWhiteChar();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static U_LONG
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
GetAddSubPrec(Real *a,Real *b);
|
||||
#else
|
||||
GetAddSubPrec();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static S_INT
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
GetPositiveInt(VALUE v);
|
||||
#else
|
||||
GetPositiveInt();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static Real *
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
GetVpValue(VALUE v,int must);
|
||||
#else
|
||||
GetVpValue();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static VALUE
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
ToValue(Real *p);
|
||||
#else
|
||||
ToValue();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static S_INT
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
BigFloatCmp(VALUE self,VALUE r);
|
||||
#else
|
||||
BigFloatCmp();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static VALUE
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
BigFloat_divide(Real **c,Real **res,Real **div,VALUE self,VALUE r);
|
||||
#else
|
||||
BigFloat_divide();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
static VALUE
|
||||
#ifdef HAVE_STDARG_PROTOTYPES
|
||||
BigFloat_DoDivmod(VALUE self,VALUE r,Real **div,Real **mod);
|
||||
#else
|
||||
BigFloat_DoDivmod();
|
||||
#endif /* HAVE_STDARG_PROTOTYPES */
|
||||
|
||||
/*
|
||||
* ------------------
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||||
* MACRO definitions.
|
||||
* ------------------
|
||||
*/
|
||||
#define Abs(a) (((a)>= 0)?(a):(-(a)))
|
||||
#define Max(a, b) (((a)>(b))?(a):(b))
|
||||
#define Min(a, b) (((a)>(b))?(b):(a))
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|
||||
#define IsWhiteChar(ch) (((ch==' ')||(ch=='\n')||(ch=='\t')||(ch=='\b'))?1:0)
|
||||
|
||||
#define VpMaxPrec(a) ((a)->MaxPrec)
|
||||
#define VpPrec(a) ((a)->Prec)
|
||||
#define VpGetFlag(a) ((a)->flag)
|
||||
|
||||
/* Sign */
|
||||
|
||||
/* VpGetSign(a) returns 1,-1 if a>0,a<0 respectively */
|
||||
#define VpGetSign(a) (((a)->sign>0)?1:(-1))
|
||||
/* Change sign of a to a>0,a<0 if s = 1,-1 respectively */
|
||||
#define VpChangeSign(a,s) {if((s)>0) (a)->sign=(short)Abs((S_LONG)(a)->sign);else (a)->sign=-(short)Abs((S_LONG)(a)->sign);}
|
||||
/* Sets sign of a to a>0,a<0 if s = 1,-1 respectively */
|
||||
#define VpSetSign(a,s) {if((s)>0) (a)->sign=(short)VP_SIGN_POSITIVE_FINITE;else (a)->sign=(short)VP_SIGN_NEGATIVE_FINITE;}
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||||
|
||||
/* 1 */
|
||||
#define VpSetOne(a) {(a)->frac[0]=(a)->exponent=(a)->Prec=1;(a)->sign=VP_SIGN_POSITIVE_FINITE;}
|
||||
|
||||
/* ZEROs */
|
||||
#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) )
|
||||
|
||||
/* NaN */
|
||||
#define VpIsNaN(a) ((a)->sign==VP_SIGN_NaN)
|
||||
#define VpSetNaN(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NaN)
|
||||
|
||||
/* Infinity */
|
||||
#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) )
|
||||
|
||||
#ifdef _DEBUG
|
||||
int VpVarCheck(Real * v);
|
||||
#endif /* _DEBUG */
|
||||
|
||||
#if defined(__cplusplus)
|
||||
} /* extern "C" { */
|
||||
#endif
|
||||
#endif //____BIG_FLOAT__H____
|
||||
1
ext/bigfloat/depend
Normal file
1
ext/bigfloat/depend
Normal file
|
|
@ -0,0 +1 @@
|
|||
bigfloat.o: bigfloat.c bigfloat.h $(hdrdir)/ruby.h
|
||||
2
ext/bigfloat/extconf.rb
Normal file
2
ext/bigfloat/extconf.rb
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
require 'mkmf'
|
||||
create_makefile('BigFloat')
|
||||
Loading…
Reference in a new issue