Ruby
2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
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9 #ifndef RUBY_BIG_DECIMAL_H
10 #define RUBY_BIG_DECIMAL_H 1
12 #define RUBY_NO_OLD_COMPATIBILITY
19 # define RB_UNUSED_VAR(x) x __attribute__ ((unused))
21 # define RB_UNUSED_VAR(x) x
32 #undef BDIGIT_DBL_SIGNED
33 #undef PRI_BDIGIT_PREFIX
34 #undef PRI_BDIGIT_DBL_PREFIX
37 # define BDIGIT uint32_t
38 # define BDIGIT_DBL uint64_t
39 # define BDIGIT_DBL_SIGNED int64_t
40 # define SIZEOF_BDIGITS 4
41 # define PRI_BDIGIT_PREFIX ""
43 # define PRI_BDIGIT_DBL_PREFIX PRI_LL_PREFIX
45 # define PRI_BDIGIT_DBL_PREFIX "l"
48 # define BDIGIT uint16_t
49 # define BDIGIT_DBL uint32_t
50 # define BDIGIT_DBL_SIGNED int32_t
51 # define SIZEOF_BDIGITS 2
52 # define PRI_BDIGIT_PREFIX "h"
53 # define PRI_BDIGIT_DBL_PREFIX ""
56 #define PRIdBDIGIT PRI_BDIGIT_PREFIX"d"
57 #define PRIiBDIGIT PRI_BDIGIT_PREFIX"i"
58 #define PRIoBDIGIT PRI_BDIGIT_PREFIX"o"
59 #define PRIuBDIGIT PRI_BDIGIT_PREFIX"u"
60 #define PRIxBDIGIT PRI_BDIGIT_PREFIX"x"
61 #define PRIXBDIGIT PRI_BDIGIT_PREFIX"X"
63 #define PRIdBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"d"
64 #define PRIiBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"i"
65 #define PRIoBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"o"
66 #define PRIuBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"u"
67 #define PRIxBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"x"
68 #define PRIXBDIGIT_DBL PRI_BDIGIT_DBL_PREFIX"X"
70 #if defined(__cplusplus)
104 # ifndef HAVE_ISFINITE
105 # define HAVE_ISFINITE 1
106 # define isfinite(x) finite(x)
110 #ifndef FIX_CONST_VALUE_PTR
111 # if defined(__fcc__) || defined(__fcc_version) || \
112 defined(__FCC__) || defined(__FCC_VERSION)
114 # define FIX_CONST_VALUE_PTR(x) ((const VALUE *)(x))
116 # define FIX_CONST_VALUE_PTR(x) (x)
120 #ifndef HAVE_RB_ARRAY_CONST_PTR
121 static inline const VALUE *
122 rb_array_const_ptr(
VALUE a)
129 #ifndef RARRAY_CONST_PTR
130 # define RARRAY_CONST_PTR(a) rb_array_const_ptr(a)
134 # define RARRAY_AREF(a, i) (RARRAY_CONST_PTR(a)[i])
137 #ifndef HAVE_RB_SYM2STR
147 # define RB_ST2FIX(h) LONG2FIX((long)(h))
148 # define ST2FIX(h) RB_ST2FIX(h)
154 #if SIZEOF_VALUE <= SIZEOF_INT
156 #elif SIZEOF_VALUE <= SIZEOF_LONG
158 #elif SIZEOF_VALUE <= SIZEOF_LONG_LONG
164 #if 0 || SIZEOF_BDIGITS >= 16
165 # define RMPD_COMPONENT_FIGURES 38
166 # define RMPD_BASE ((BDIGIT)100000000000000000000000000000000000000U)
167 #elif SIZEOF_BDIGITS >= 8
168 # define RMPD_COMPONENT_FIGURES 19
169 # define RMPD_BASE ((BDIGIT)10000000000000000000U)
170 #elif SIZEOF_BDIGITS >= 4
171 # define RMPD_COMPONENT_FIGURES 9
172 # define RMPD_BASE ((BDIGIT)1000000000U)
173 #elif SIZEOF_BDIGITS >= 2
174 # define RMPD_COMPONENT_FIGURES 4
175 # define RMPD_BASE ((BDIGIT)10000U)
177 # define RMPD_COMPONENT_FIGURES 2
178 # define RMPD_BASE ((BDIGIT)100U)
186 #define SZ_INF "Infinity"
187 #define SZ_PINF "+Infinity"
188 #define SZ_NINF "-Infinity"
194 #define VP_EXPORT static
197 #define VP_EXCEPTION_ALL ((unsigned short)0x00FF)
198 #define VP_EXCEPTION_INFINITY ((unsigned short)0x0001)
199 #define VP_EXCEPTION_NaN ((unsigned short)0x0002)
200 #define VP_EXCEPTION_UNDERFLOW ((unsigned short)0x0004)
201 #define VP_EXCEPTION_OVERFLOW ((unsigned short)0x0001)
202 #define VP_EXCEPTION_ZERODIVIDE ((unsigned short)0x0010)
205 #define VP_EXCEPTION_OP ((unsigned short)0x0020)
206 #define VP_EXCEPTION_MEMORY ((unsigned short)0x0040)
208 #define RMPD_EXCEPTION_MODE_DEFAULT 0U
211 #define VP_ROUND_MODE ((unsigned short)0x0100)
212 #define VP_ROUND_UP 1
213 #define VP_ROUND_DOWN 2
214 #define VP_ROUND_HALF_UP 3
215 #define VP_ROUND_HALF_DOWN 4
216 #define VP_ROUND_CEIL 5
217 #define VP_ROUND_FLOOR 6
218 #define VP_ROUND_HALF_EVEN 7
220 #define RMPD_ROUNDING_MODE_DEFAULT VP_ROUND_HALF_UP
222 #define VP_SIGN_NaN 0
223 #define VP_SIGN_POSITIVE_ZERO 1
224 #define VP_SIGN_NEGATIVE_ZERO -1
225 #define VP_SIGN_POSITIVE_FINITE 2
226 #define VP_SIGN_NEGATIVE_FINITE -2
227 #define VP_SIGN_POSITIVE_INFINITE 3
228 #define VP_SIGN_NEGATIVE_INFINITE -3
230 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
231 #define FLEXIBLE_ARRAY_SIZE
232 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
233 #define FLEXIBLE_ARRAY_SIZE 0
235 #define FLEXIBLE_ARRAY_SIZE 1
277 rmpd_base_value(
void) {
return RMPD_BASE; }
281 rmpd_double_figures(
void) {
return 1+
DBL_DIG; }
283 #define VpBaseFig() rmpd_component_figures()
284 #define VpDblFig() rmpd_double_figures()
285 #define VpBaseVal() rmpd_base_value()
322 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);
343 #define Abs(a) (((a)>= 0)?(a):(-(a)))
344 #define Max(a, b) (((a)>(b))?(a):(b))
345 #define Min(a, b) (((a)>(b))?(b):(a))
347 #define VpMaxPrec(a) ((a)->MaxPrec)
348 #define VpPrec(a) ((a)->Prec)
349 #define VpGetFlag(a) ((a)->flag)
354 #define VpGetSign(a) (((a)->sign>0)?1:(-1))
356 #define VpChangeSign(a,s) {if((s)>0) (a)->sign=(short)Abs((ssize_t)(a)->sign);else (a)->sign=-(short)Abs((ssize_t)(a)->sign);}
358 #define VpSetSign(a,s) {if((s)>0) (a)->sign=(short)VP_SIGN_POSITIVE_FINITE;else (a)->sign=(short)VP_SIGN_NEGATIVE_FINITE;}
361 #define VpSetOne(a) {(a)->Prec=(a)->exponent=(a)->frac[0]=1;(a)->sign=VP_SIGN_POSITIVE_FINITE;}
364 #define VpIsPosZero(a) ((a)->sign==VP_SIGN_POSITIVE_ZERO)
365 #define VpIsNegZero(a) ((a)->sign==VP_SIGN_NEGATIVE_ZERO)
366 #define VpIsZero(a) (VpIsPosZero(a) || VpIsNegZero(a))
367 #define VpSetPosZero(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_ZERO)
368 #define VpSetNegZero(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_ZERO)
369 #define VpSetZero(a,s) (void)(((s)>0)?VpSetPosZero(a):VpSetNegZero(a))
372 #define VpIsNaN(a) ((a)->sign==VP_SIGN_NaN)
373 #define VpSetNaN(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NaN)
376 #define VpIsPosInf(a) ((a)->sign==VP_SIGN_POSITIVE_INFINITE)
377 #define VpIsNegInf(a) ((a)->sign==VP_SIGN_NEGATIVE_INFINITE)
378 #define VpIsInf(a) (VpIsPosInf(a) || VpIsNegInf(a))
379 #define VpIsDef(a) ( !(VpIsNaN(a)||VpIsInf(a)) )
380 #define VpSetPosInf(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_INFINITE)
381 #define VpSetNegInf(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_INFINITE)
382 #define VpSetInf(a,s) (void)(((s)>0)?VpSetPosInf(a):VpSetNegInf(a))
383 #define VpHasVal(a) (a->frac[0])
384 #define VpIsOne(a) ((a->Prec==1)&&(a->frac[0]==1)&&(a->exponent==1))
385 #define VpExponent(a) (a->exponent)
386 #ifdef BIGDECIMAL_DEBUG
387 int VpVarCheck(
Real *
v);
390 #if defined(__cplusplus)
VP_EXPORT size_t VpGetPrecLimit(void)
VP_EXPORT size_t VpAsgn(Real *c, Real *a, int isw)
#define FIX_CONST_VALUE_PTR(x)
VP_EXPORT void * VpMemRealloc(void *ptr, size_t mb)
VP_EXPORT void VpSzMantissa(Real *a, char *psz)
VP_EXPORT size_t VpNumOfChars(Real *vp, const char *pszFmt)
VP_EXPORT int VpException(unsigned short f, const char *str, int always)
VP_EXPORT unsigned short VpSetRoundMode(unsigned short n)
#define RMPD_COMPONENT_FIGURES
VP_EXPORT size_t VpDivd(Real *c, Real *r, Real *a, Real *b)
VP_EXPORT void * VpMemAlloc(size_t mb)
VP_EXPORT void VpToFString(Real *a, char *psz, size_t fFmt, int fPlus)
VP_EXPORT int VpVtoD(double *d, SIGNED_VALUE *e, Real *m)
VP_EXPORT void VpFree(Real *pv)
VP_EXPORT double VpGetDoubleNegZero(void)
VP_EXPORT size_t VpSetPrecLimit(size_t n)
VP_EXPORT Real * VpAlloc(size_t mx, const char *szVal, int strict_p, int exc)
VP_EXPORT int VpIsRoundMode(unsigned short n)
VP_EXPORT double VpGetDoubleNegInf(void)
VP_EXPORT int VpComp(Real *a, Real *b)
VP_EXPORT int VpToSpecialString(Real *a, char *psz, int fPlus)
VP_EXPORT int VpSqrt(Real *y, Real *x)
VP_EXPORT int VpPower(Real *y, Real *x, SIGNED_VALUE n)
VP_EXPORT Real * VpOne(void)
VP_EXPORT void VpToString(Real *a, char *psz, size_t fFmt, int fPlus)
VP_EXPORT void VpDtoV(Real *m, double d)
VP_EXPORT Real * VpNewRbClass(size_t mx, char const *str, VALUE klass)
VP_EXPORT size_t VpInit(BDIGIT BaseVal)
VP_EXPORT size_t VpAddSub(Real *c, Real *a, Real *b, int operation)
VP_EXPORT ssize_t VpExponent10(Real *a)
VP_EXPORT void VpFrac(Real *y, Real *x)
VP_EXPORT int VpMidRound(Real *y, unsigned short f, ssize_t nf)
char str[HTML_ESCAPE_MAX_LEN+1]
VP_EXPORT int VpLeftRound(Real *y, unsigned short f, ssize_t nf)
VP_EXPORT double VpGetDoubleNaN(void)
VP_EXPORT int VpActiveRound(Real *y, Real *x, unsigned short f, ssize_t il)
VP_EXPORT Real * VpCreateRbObject(size_t mx, const char *str)
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 double VpGetDoublePosInf(void)
VP_EXPORT unsigned short VpGetRoundMode(void)
#define FLEXIBLE_ARRAY_SIZE
VP_EXPORT size_t VpMult(Real *c, Real *a, Real *b)