1/*
2 * Copyright (c) 2008-2020 Stefan Krah. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28
29#ifndef LIBMPDEC_MPDECIMAL_H_
30#define LIBMPDEC_MPDECIMAL_H_
31
32
33#ifndef _MSC_VER
34 #include "pyconfig.h"
35#endif
36
37#ifdef __cplusplus
38 #include <cinttypes>
39 #include <climits>
40 #include <cstdint>
41 #include <cstdio>
42 #include <cstdlib>
43 #define MPD_UINT8_C(x) (static_cast<uint8_t>(x))
44extern "C" {
45#else
46 #include <inttypes.h>
47 #include <limits.h>
48 #include <stdint.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #define MPD_UINT8_C(x) ((uint8_t)x)
52#endif
53
54
55#if (defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__)) && \
56 defined(__GNUC__) && __GNUC__ >= 4 && !defined(__INTEL_COMPILER)
57 #define MPD_PRAGMA(x) _Pragma(x)
58 #define MPD_HIDE_SYMBOLS_START "GCC visibility push(hidden)"
59 #define MPD_HIDE_SYMBOLS_END "GCC visibility pop"
60#else
61 #define MPD_PRAGMA(x)
62 #define MPD_HIDE_SYMBOLS_START
63 #define MPD_HIDE_SYMBOLS_END
64#endif
65
66#if defined(_MSC_VER)
67 #define EXTINLINE extern inline
68#else
69 #define EXTINLINE
70#endif
71
72
73/* This header file is internal for the purpose of building _decimal.so.
74 * All symbols should have local scope in the DSO. */
75MPD_PRAGMA(MPD_HIDE_SYMBOLS_START)
76
77
78/******************************************************************************/
79/* Version */
80/******************************************************************************/
81
82#define MPD_MAJOR_VERSION 2
83#define MPD_MINOR_VERSION 5
84#define MPD_MICRO_VERSION 1
85
86#define MPD_VERSION "2.5.1"
87
88#define MPD_VERSION_HEX ((MPD_MAJOR_VERSION << 24) | \
89 (MPD_MINOR_VERSION << 16) | \
90 (MPD_MICRO_VERSION << 8))
91
92const char *mpd_version(void);
93
94
95/******************************************************************************/
96/* Configuration */
97/******************************************************************************/
98
99#if defined(UNIVERSAL)
100 #if defined(CONFIG_64) || defined(CONFIG_32)
101 #error "cannot use CONFIG_64 or CONFIG_32 with UNIVERSAL."
102 #endif
103 #if defined(__ppc__)
104 #define CONFIG_32
105 #define ANSI
106 #elif defined(__ppc64__)
107 #define CONFIG_64
108 #define ANSI
109 #elif defined(__i386__)
110 #define CONFIG_32
111 #define ANSI
112 #elif defined(__x86_64__)
113 #define CONFIG_64
114 #define ASM
115 #elif defined(__arm64__)
116 #define CONFIG_64
117 #define ANSI
118 #else
119 #error "unknown architecture for universal build."
120 #endif
121#endif
122
123
124/* BEGIN CONFIG_64 */
125#if defined(CONFIG_64)
126/* types for modular and base arithmetic */
127#define MPD_UINT_MAX UINT64_MAX
128#define MPD_BITS_PER_UINT 64
129typedef uint64_t mpd_uint_t; /* unsigned mod type */
130
131#define MPD_SIZE_MAX SIZE_MAX
132typedef size_t mpd_size_t; /* unsigned size type */
133
134/* type for exp, digits, len, prec */
135#define MPD_SSIZE_MAX INT64_MAX
136#define MPD_SSIZE_MIN INT64_MIN
137typedef int64_t mpd_ssize_t;
138#define _mpd_strtossize strtoll
139
140/* decimal arithmetic */
141#define MPD_RADIX 10000000000000000000ULL /* 10**19 */
142#define MPD_RDIGITS 19
143#define MPD_MAX_POW10 19
144#define MPD_EXPDIGITS 19 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
145
146#define MPD_MAXTRANSFORM_2N 4294967296ULL /* 2**32 */
147#define MPD_MAX_PREC 999999999999999999LL
148#define MPD_MAX_PREC_LOG2 64
149#define MPD_ELIMIT 1000000000000000000LL
150#define MPD_MAX_EMAX 999999999999999999LL /* ELIMIT-1 */
151#define MPD_MIN_EMIN (-999999999999999999LL) /* -EMAX */
152#define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
153#define MPD_EXP_INF 2000000000000000001LL
154#define MPD_EXP_CLAMP (-4000000000000000001LL)
155#define MPD_MAXIMPORT 105263157894736842L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
156#define MPD_IEEE_CONTEXT_MAX_BITS 512 /* 16*(log2(MPD_MAX_EMAX / 3)-3) */
157
158/* conversion specifiers */
159#define PRI_mpd_uint_t PRIu64
160#define PRI_mpd_ssize_t PRIi64
161/* END CONFIG_64 */
162
163
164/* BEGIN CONFIG_32 */
165#elif defined(CONFIG_32)
166/* types for modular and base arithmetic */
167#define MPD_UINT_MAX UINT32_MAX
168#define MPD_BITS_PER_UINT 32
169typedef uint32_t mpd_uint_t; /* unsigned mod type */
170
171#ifndef LEGACY_COMPILER
172#define MPD_UUINT_MAX UINT64_MAX
173typedef uint64_t mpd_uuint_t; /* double width unsigned mod type */
174#endif
175
176#define MPD_SIZE_MAX SIZE_MAX
177typedef size_t mpd_size_t; /* unsigned size type */
178
179/* type for dec->len, dec->exp, ctx->prec */
180#define MPD_SSIZE_MAX INT32_MAX
181#define MPD_SSIZE_MIN INT32_MIN
182typedef int32_t mpd_ssize_t;
183#define _mpd_strtossize strtol
184
185/* decimal arithmetic */
186#define MPD_RADIX 1000000000UL /* 10**9 */
187#define MPD_RDIGITS 9
188#define MPD_MAX_POW10 9
189#define MPD_EXPDIGITS 10 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
190
191#define MPD_MAXTRANSFORM_2N 33554432UL /* 2**25 */
192#define MPD_MAX_PREC 425000000L
193#define MPD_MAX_PREC_LOG2 32
194#define MPD_ELIMIT 425000001L
195#define MPD_MAX_EMAX 425000000L /* ELIMIT-1 */
196#define MPD_MIN_EMIN (-425000000L) /* -EMAX */
197#define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
198#define MPD_EXP_INF 1000000001L /* allows for emax=999999999 in the tests */
199#define MPD_EXP_CLAMP (-2000000001L) /* allows for emin=-999999999 in the tests */
200#define MPD_MAXIMPORT 94444445L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
201#define MPD_IEEE_CONTEXT_MAX_BITS 256 /* 16*(log2(MPD_MAX_EMAX / 3)-3) */
202
203/* conversion specifiers */
204#define PRI_mpd_uint_t PRIu32
205#define PRI_mpd_ssize_t PRIi32
206/* END CONFIG_32 */
207
208#else
209 #error "define CONFIG_64 or CONFIG_32"
210#endif
211/* END CONFIG */
212
213
214#if MPD_SIZE_MAX != MPD_UINT_MAX
215 #error "unsupported platform: need mpd_size_t == mpd_uint_t"
216#endif
217
218
219/******************************************************************************/
220/* Context */
221/******************************************************************************/
222
223enum {
224 MPD_ROUND_UP, /* round away from 0 */
225 MPD_ROUND_DOWN, /* round toward 0 (truncate) */
226 MPD_ROUND_CEILING, /* round toward +infinity */
227 MPD_ROUND_FLOOR, /* round toward -infinity */
228 MPD_ROUND_HALF_UP, /* 0.5 is rounded up */
229 MPD_ROUND_HALF_DOWN, /* 0.5 is rounded down */
230 MPD_ROUND_HALF_EVEN, /* 0.5 is rounded to even */
231 MPD_ROUND_05UP, /* round zero or five away from 0 */
232 MPD_ROUND_TRUNC, /* truncate, but set infinity */
233 MPD_ROUND_GUARD
234};
235
236enum { MPD_CLAMP_DEFAULT, MPD_CLAMP_IEEE_754, MPD_CLAMP_GUARD };
237
238extern const char * const mpd_round_string[MPD_ROUND_GUARD];
239extern const char * const mpd_clamp_string[MPD_CLAMP_GUARD];
240
241
242typedef struct mpd_context_t {
243 mpd_ssize_t prec; /* precision */
244 mpd_ssize_t emax; /* max positive exp */
245 mpd_ssize_t emin; /* min negative exp */
246 uint32_t traps; /* status events that should be trapped */
247 uint32_t status; /* status flags */
248 uint32_t newtrap; /* set by mpd_addstatus_raise() */
249 int round; /* rounding mode */
250 int clamp; /* clamp mode */
251 int allcr; /* all functions correctly rounded */
252} mpd_context_t;
253
254
255/* Status flags */
256#define MPD_Clamped 0x00000001U
257#define MPD_Conversion_syntax 0x00000002U
258#define MPD_Division_by_zero 0x00000004U
259#define MPD_Division_impossible 0x00000008U
260#define MPD_Division_undefined 0x00000010U
261#define MPD_Fpu_error 0x00000020U
262#define MPD_Inexact 0x00000040U
263#define MPD_Invalid_context 0x00000080U
264#define MPD_Invalid_operation 0x00000100U
265#define MPD_Malloc_error 0x00000200U
266#define MPD_Not_implemented 0x00000400U
267#define MPD_Overflow 0x00000800U
268#define MPD_Rounded 0x00001000U
269#define MPD_Subnormal 0x00002000U
270#define MPD_Underflow 0x00004000U
271#define MPD_Max_status (0x00008000U-1U)
272
273/* Conditions that result in an IEEE 754 exception */
274#define MPD_IEEE_Invalid_operation (MPD_Conversion_syntax | \
275 MPD_Division_impossible | \
276 MPD_Division_undefined | \
277 MPD_Fpu_error | \
278 MPD_Invalid_context | \
279 MPD_Invalid_operation | \
280 MPD_Malloc_error) \
281
282/* Errors that require the result of an operation to be set to NaN */
283#define MPD_Errors (MPD_IEEE_Invalid_operation | \
284 MPD_Division_by_zero)
285
286/* Default traps */
287#define MPD_Traps (MPD_IEEE_Invalid_operation | \
288 MPD_Division_by_zero | \
289 MPD_Overflow | \
290 MPD_Underflow)
291
292/* Official name */
293#define MPD_Insufficient_storage MPD_Malloc_error
294
295/* IEEE 754 interchange format contexts */
296#define MPD_DECIMAL32 32
297#define MPD_DECIMAL64 64
298#define MPD_DECIMAL128 128
299
300
301#define MPD_MINALLOC_MIN 2
302#define MPD_MINALLOC_MAX 64
303extern mpd_ssize_t MPD_MINALLOC;
304extern void (* mpd_traphandler)(mpd_context_t *);
305void mpd_dflt_traphandler(mpd_context_t *);
306
307void mpd_setminalloc(mpd_ssize_t n);
308void mpd_init(mpd_context_t *ctx, mpd_ssize_t prec);
309
310void mpd_maxcontext(mpd_context_t *ctx);
311void mpd_defaultcontext(mpd_context_t *ctx);
312void mpd_basiccontext(mpd_context_t *ctx);
313int mpd_ieee_context(mpd_context_t *ctx, int bits);
314
315mpd_ssize_t mpd_getprec(const mpd_context_t *ctx);
316mpd_ssize_t mpd_getemax(const mpd_context_t *ctx);
317mpd_ssize_t mpd_getemin(const mpd_context_t *ctx);
318int mpd_getround(const mpd_context_t *ctx);
319uint32_t mpd_gettraps(const mpd_context_t *ctx);
320uint32_t mpd_getstatus(const mpd_context_t *ctx);
321int mpd_getclamp(const mpd_context_t *ctx);
322int mpd_getcr(const mpd_context_t *ctx);
323
324int mpd_qsetprec(mpd_context_t *ctx, mpd_ssize_t prec);
325int mpd_qsetemax(mpd_context_t *ctx, mpd_ssize_t emax);
326int mpd_qsetemin(mpd_context_t *ctx, mpd_ssize_t emin);
327int mpd_qsetround(mpd_context_t *ctx, int newround);
328int mpd_qsettraps(mpd_context_t *ctx, uint32_t flags);
329int mpd_qsetstatus(mpd_context_t *ctx, uint32_t flags);
330int mpd_qsetclamp(mpd_context_t *ctx, int c);
331int mpd_qsetcr(mpd_context_t *ctx, int c);
332void mpd_addstatus_raise(mpd_context_t *ctx, uint32_t flags);
333
334
335/******************************************************************************/
336/* Decimal Arithmetic */
337/******************************************************************************/
338
339/* mpd_t flags */
340#define MPD_POS MPD_UINT8_C(0)
341#define MPD_NEG MPD_UINT8_C(1)
342#define MPD_INF MPD_UINT8_C(2)
343#define MPD_NAN MPD_UINT8_C(4)
344#define MPD_SNAN MPD_UINT8_C(8)
345#define MPD_SPECIAL (MPD_INF|MPD_NAN|MPD_SNAN)
346#define MPD_STATIC MPD_UINT8_C(16)
347#define MPD_STATIC_DATA MPD_UINT8_C(32)
348#define MPD_SHARED_DATA MPD_UINT8_C(64)
349#define MPD_CONST_DATA MPD_UINT8_C(128)
350#define MPD_DATAFLAGS (MPD_STATIC_DATA|MPD_SHARED_DATA|MPD_CONST_DATA)
351
352/* mpd_t */
353typedef struct mpd_t {
354 uint8_t flags;
355 mpd_ssize_t exp;
356 mpd_ssize_t digits;
357 mpd_ssize_t len;
358 mpd_ssize_t alloc;
359 mpd_uint_t *data;
360} mpd_t;
361
362
363/******************************************************************************/
364/* Triple */
365/******************************************************************************/
366
367/* status cases for getting a triple */
368enum mpd_triple_class {
369 MPD_TRIPLE_NORMAL,
370 MPD_TRIPLE_INF,
371 MPD_TRIPLE_QNAN,
372 MPD_TRIPLE_SNAN,
373 MPD_TRIPLE_ERROR,
374};
375
376typedef struct {
377 enum mpd_triple_class tag;
378 uint8_t sign;
379 uint64_t hi;
380 uint64_t lo;
381 int64_t exp;
382} mpd_uint128_triple_t;
383
384int mpd_from_uint128_triple(mpd_t *result, const mpd_uint128_triple_t *triple, uint32_t *status);
385mpd_uint128_triple_t mpd_as_uint128_triple(const mpd_t *a);
386
387
388/******************************************************************************/
389/* Quiet, thread-safe functions */
390/******************************************************************************/
391
392/* format specification */
393typedef struct mpd_spec_t {
394 mpd_ssize_t min_width; /* minimum field width */
395 mpd_ssize_t prec; /* fraction digits or significant digits */
396 char type; /* conversion specifier */
397 char align; /* alignment */
398 char sign; /* sign printing/alignment */
399 char fill[5]; /* fill character */
400 const char *dot; /* decimal point */
401 const char *sep; /* thousands separator */
402 const char *grouping; /* grouping of digits */
403} mpd_spec_t;
404
405/* output to a string */
406char *mpd_to_sci(const mpd_t *dec, int fmt);
407char *mpd_to_eng(const mpd_t *dec, int fmt);
408mpd_ssize_t mpd_to_sci_size(char **res, const mpd_t *dec, int fmt);
409mpd_ssize_t mpd_to_eng_size(char **res, const mpd_t *dec, int fmt);
410int mpd_validate_lconv(mpd_spec_t *spec);
411int mpd_parse_fmt_str(mpd_spec_t *spec, const char *fmt, int caps);
412char *mpd_qformat_spec(const mpd_t *dec, const mpd_spec_t *spec, const mpd_context_t *ctx, uint32_t *status);
413char *mpd_qformat(const mpd_t *dec, const char *fmt, const mpd_context_t *ctx, uint32_t *status);
414
415#define MPD_NUM_FLAGS 15
416#define MPD_MAX_FLAG_STRING 208
417#define MPD_MAX_FLAG_LIST (MPD_MAX_FLAG_STRING+18)
418#define MPD_MAX_SIGNAL_LIST 121
419int mpd_snprint_flags(char *dest, int nmemb, uint32_t flags);
420int mpd_lsnprint_flags(char *dest, int nmemb, uint32_t flags, const char *flag_string[]);
421int mpd_lsnprint_signals(char *dest, int nmemb, uint32_t flags, const char *signal_string[]);
422
423/* output to a file */
424void mpd_fprint(FILE *file, const mpd_t *dec);
425void mpd_print(const mpd_t *dec);
426
427/* assignment from a string */
428void mpd_qset_string(mpd_t *dec, const char *s, const mpd_context_t *ctx, uint32_t *status);
429void mpd_qset_string_exact(mpd_t *dec, const char *s, uint32_t *status);
430
431/* set to NaN with error flags */
432void mpd_seterror(mpd_t *result, uint32_t flags, uint32_t *status);
433/* set a special with sign and type */
434void mpd_setspecial(mpd_t *result, uint8_t sign, uint8_t type);
435/* set coefficient to zero or all nines */
436void mpd_zerocoeff(mpd_t *result);
437void mpd_qmaxcoeff(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
438
439/* quietly assign a C integer type to an mpd_t */
440void mpd_qset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
441void mpd_qset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
442void mpd_qset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
443void mpd_qset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
444#ifndef LEGACY_COMPILER
445void mpd_qset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
446void mpd_qset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
447void mpd_qset_i64_exact(mpd_t *result, int64_t a, uint32_t *status);
448void mpd_qset_u64_exact(mpd_t *result, uint64_t a, uint32_t *status);
449#endif
450
451/* quietly assign a C integer type to an mpd_t with a static coefficient */
452void mpd_qsset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
453void mpd_qsset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
454void mpd_qsset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
455void mpd_qsset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
456
457/* quietly get a C integer type from an mpd_t */
458mpd_ssize_t mpd_qget_ssize(const mpd_t *dec, uint32_t *status);
459mpd_uint_t mpd_qget_uint(const mpd_t *dec, uint32_t *status);
460mpd_uint_t mpd_qabs_uint(const mpd_t *dec, uint32_t *status);
461
462int32_t mpd_qget_i32(const mpd_t *dec, uint32_t *status);
463uint32_t mpd_qget_u32(const mpd_t *dec, uint32_t *status);
464#ifndef LEGACY_COMPILER
465int64_t mpd_qget_i64(const mpd_t *dec, uint32_t *status);
466uint64_t mpd_qget_u64(const mpd_t *dec, uint32_t *status);
467#endif
468
469/* quiet functions */
470int mpd_qcheck_nan(mpd_t *nanresult, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
471int mpd_qcheck_nans(mpd_t *nanresult, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
472void mpd_qfinalize(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
473
474const char *mpd_class(const mpd_t *a, const mpd_context_t *ctx);
475
476int mpd_qcopy(mpd_t *result, const mpd_t *a, uint32_t *status);
477int mpd_qcopy_cxx(mpd_t *result, const mpd_t *a);
478mpd_t *mpd_qncopy(const mpd_t *a);
479int mpd_qcopy_abs(mpd_t *result, const mpd_t *a, uint32_t *status);
480int mpd_qcopy_negate(mpd_t *result, const mpd_t *a, uint32_t *status);
481int mpd_qcopy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, uint32_t *status);
482
483void mpd_qand(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
484void mpd_qinvert(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
485void mpd_qlogb(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
486void mpd_qor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
487void mpd_qscaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
488void mpd_qxor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
489int mpd_same_quantum(const mpd_t *a, const mpd_t *b);
490
491void mpd_qrotate(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
492int mpd_qshiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
493mpd_uint_t mpd_qshiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
494mpd_uint_t mpd_qshiftr_inplace(mpd_t *result, mpd_ssize_t n);
495void mpd_qshift(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
496void mpd_qshiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, const mpd_context_t *ctx, uint32_t *status);
497
498int mpd_qcmp(const mpd_t *a, const mpd_t *b, uint32_t *status);
499int mpd_qcompare(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
500int mpd_qcompare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
501int mpd_cmp_total(const mpd_t *a, const mpd_t *b);
502int mpd_cmp_total_mag(const mpd_t *a, const mpd_t *b);
503int mpd_compare_total(mpd_t *result, const mpd_t *a, const mpd_t *b);
504int mpd_compare_total_mag(mpd_t *result, const mpd_t *a, const mpd_t *b);
505
506void mpd_qround_to_intx(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
507void mpd_qround_to_int(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
508void mpd_qtrunc(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
509void mpd_qfloor(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
510void mpd_qceil(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
511
512void mpd_qabs(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
513void mpd_qmax(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
514void mpd_qmax_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
515void mpd_qmin(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
516void mpd_qmin_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
517void mpd_qminus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
518void mpd_qplus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
519void mpd_qnext_minus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
520void mpd_qnext_plus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
521void mpd_qnext_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
522void mpd_qquantize(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
523void mpd_qrescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
524void mpd_qrescale_fmt(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
525void mpd_qreduce(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
526void mpd_qadd(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
527void mpd_qadd_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
528void mpd_qadd_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
529void mpd_qadd_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
530void mpd_qadd_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
531void mpd_qsub(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
532void mpd_qsub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
533void mpd_qsub_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
534void mpd_qsub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
535void mpd_qsub_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
536void mpd_qmul(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
537void mpd_qmul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
538void mpd_qmul_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
539void mpd_qmul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
540void mpd_qmul_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
541void mpd_qfma(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_t *c, const mpd_context_t *ctx, uint32_t *status);
542void mpd_qdiv(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
543void mpd_qdiv_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
544void mpd_qdiv_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
545void mpd_qdiv_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
546void mpd_qdiv_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
547void mpd_qdivint(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
548void mpd_qrem(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
549void mpd_qrem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
550void mpd_qdivmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
551void mpd_qpow(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_context_t *ctx, uint32_t *status);
552void mpd_qpowmod(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_t *mod, const mpd_context_t *ctx, uint32_t *status);
553void mpd_qexp(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
554void mpd_qln10(mpd_t *result, mpd_ssize_t prec, uint32_t *status);
555void mpd_qln(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
556void mpd_qlog10(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
557void mpd_qsqrt(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
558void mpd_qinvroot(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
559
560#ifndef LEGACY_COMPILER
561void mpd_qadd_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
562void mpd_qadd_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
563void mpd_qsub_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
564void mpd_qsub_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
565void mpd_qmul_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
566void mpd_qmul_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
567void mpd_qdiv_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
568void mpd_qdiv_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
569#endif
570
571
572size_t mpd_sizeinbase(const mpd_t *a, uint32_t base);
573void mpd_qimport_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen,
574 uint8_t srcsign, uint32_t srcbase,
575 const mpd_context_t *ctx, uint32_t *status);
576void mpd_qimport_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen,
577 uint8_t srcsign, uint32_t srcbase,
578 const mpd_context_t *ctx, uint32_t *status);
579size_t mpd_qexport_u16(uint16_t **rdata, size_t rlen, uint32_t base,
580 const mpd_t *src, uint32_t *status);
581size_t mpd_qexport_u32(uint32_t **rdata, size_t rlen, uint32_t base,
582 const mpd_t *src, uint32_t *status);
583
584
585/******************************************************************************/
586/* Signalling functions */
587/******************************************************************************/
588
589char *mpd_format(const mpd_t *dec, const char *fmt, mpd_context_t *ctx);
590void mpd_import_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
591void mpd_import_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
592size_t mpd_export_u16(uint16_t **rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
593size_t mpd_export_u32(uint32_t **rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
594void mpd_finalize(mpd_t *result, mpd_context_t *ctx);
595int mpd_check_nan(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
596int mpd_check_nans(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
597void mpd_set_string(mpd_t *result, const char *s, mpd_context_t *ctx);
598void mpd_maxcoeff(mpd_t *result, mpd_context_t *ctx);
599void mpd_sset_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
600void mpd_sset_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
601void mpd_sset_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
602void mpd_sset_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
603void mpd_set_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
604void mpd_set_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
605void mpd_set_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
606void mpd_set_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
607#ifndef LEGACY_COMPILER
608void mpd_set_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
609void mpd_set_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
610#endif
611mpd_ssize_t mpd_get_ssize(const mpd_t *a, mpd_context_t *ctx);
612mpd_uint_t mpd_get_uint(const mpd_t *a, mpd_context_t *ctx);
613mpd_uint_t mpd_abs_uint(const mpd_t *a, mpd_context_t *ctx);
614int32_t mpd_get_i32(const mpd_t *a, mpd_context_t *ctx);
615uint32_t mpd_get_u32(const mpd_t *a, mpd_context_t *ctx);
616#ifndef LEGACY_COMPILER
617int64_t mpd_get_i64(const mpd_t *a, mpd_context_t *ctx);
618uint64_t mpd_get_u64(const mpd_t *a, mpd_context_t *ctx);
619#endif
620void mpd_and(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
621void mpd_copy(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
622void mpd_canonical(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
623void mpd_copy_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
624void mpd_copy_negate(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
625void mpd_copy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
626void mpd_invert(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
627void mpd_logb(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
628void mpd_or(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
629void mpd_rotate(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
630void mpd_scaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
631void mpd_shiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
632mpd_uint_t mpd_shiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
633void mpd_shiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
634void mpd_shift(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
635void mpd_xor(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
636void mpd_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
637int mpd_cmp(const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
638int mpd_compare(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
639int mpd_compare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
640void mpd_add(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
641void mpd_add_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
642void mpd_add_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
643void mpd_add_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
644void mpd_add_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
645void mpd_sub(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
646void mpd_sub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
647void mpd_sub_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
648void mpd_sub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
649void mpd_sub_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
650void mpd_div(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
651void mpd_div_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
652void mpd_div_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
653void mpd_div_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
654void mpd_div_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
655void mpd_divmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
656void mpd_divint(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
657void mpd_exp(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
658void mpd_fma(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_t *c, mpd_context_t *ctx);
659void mpd_ln(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
660void mpd_log10(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
661void mpd_max(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
662void mpd_max_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
663void mpd_min(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
664void mpd_min_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
665void mpd_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
666void mpd_mul(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
667void mpd_mul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
668void mpd_mul_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
669void mpd_mul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
670void mpd_mul_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
671void mpd_next_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
672void mpd_next_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
673void mpd_next_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
674void mpd_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
675void mpd_pow(mpd_t *result, const mpd_t *base, const mpd_t *exp, mpd_context_t *ctx);
676void mpd_powmod(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_t *mod, mpd_context_t *ctx);
677void mpd_quantize(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
678void mpd_rescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, mpd_context_t *ctx);
679void mpd_reduce(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
680void mpd_rem(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
681void mpd_rem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
682void mpd_round_to_intx(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
683void mpd_round_to_int(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
684void mpd_trunc(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
685void mpd_floor(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
686void mpd_ceil(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
687void mpd_sqrt(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
688void mpd_invroot(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
689
690#ifndef LEGACY_COMPILER
691void mpd_add_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
692void mpd_add_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
693void mpd_sub_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
694void mpd_sub_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
695void mpd_div_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
696void mpd_div_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
697void mpd_mul_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
698void mpd_mul_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
699#endif
700
701
702/******************************************************************************/
703/* Configuration specific */
704/******************************************************************************/
705
706#ifdef CONFIG_64
707void mpd_qsset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
708void mpd_qsset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
709void mpd_sset_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
710void mpd_sset_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
711#endif
712
713
714/******************************************************************************/
715/* Get attributes of a decimal */
716/******************************************************************************/
717
718EXTINLINE mpd_ssize_t mpd_adjexp(const mpd_t *dec);
719EXTINLINE mpd_ssize_t mpd_etiny(const mpd_context_t *ctx);
720EXTINLINE mpd_ssize_t mpd_etop(const mpd_context_t *ctx);
721EXTINLINE mpd_uint_t mpd_msword(const mpd_t *dec);
722EXTINLINE int mpd_word_digits(mpd_uint_t word);
723/* most significant digit of a word */
724EXTINLINE mpd_uint_t mpd_msd(mpd_uint_t word);
725/* least significant digit of a word */
726EXTINLINE mpd_uint_t mpd_lsd(mpd_uint_t word);
727/* coefficient size needed to store 'digits' */
728EXTINLINE mpd_ssize_t mpd_digits_to_size(mpd_ssize_t digits);
729/* number of digits in the exponent, undefined for MPD_SSIZE_MIN */
730EXTINLINE int mpd_exp_digits(mpd_ssize_t exp);
731EXTINLINE int mpd_iscanonical(const mpd_t *dec);
732EXTINLINE int mpd_isfinite(const mpd_t *dec);
733EXTINLINE int mpd_isinfinite(const mpd_t *dec);
734EXTINLINE int mpd_isinteger(const mpd_t *dec);
735EXTINLINE int mpd_isnan(const mpd_t *dec);
736EXTINLINE int mpd_isnegative(const mpd_t *dec);
737EXTINLINE int mpd_ispositive(const mpd_t *dec);
738EXTINLINE int mpd_isqnan(const mpd_t *dec);
739EXTINLINE int mpd_issigned(const mpd_t *dec);
740EXTINLINE int mpd_issnan(const mpd_t *dec);
741EXTINLINE int mpd_isspecial(const mpd_t *dec);
742EXTINLINE int mpd_iszero(const mpd_t *dec);
743/* undefined for special numbers */
744EXTINLINE int mpd_iszerocoeff(const mpd_t *dec);
745EXTINLINE int mpd_isnormal(const mpd_t *dec, const mpd_context_t *ctx);
746EXTINLINE int mpd_issubnormal(const mpd_t *dec, const mpd_context_t *ctx);
747/* odd word */
748EXTINLINE int mpd_isoddword(mpd_uint_t word);
749/* odd coefficient */
750EXTINLINE int mpd_isoddcoeff(const mpd_t *dec);
751/* odd decimal, only defined for integers */
752int mpd_isodd(const mpd_t *dec);
753/* even decimal, only defined for integers */
754int mpd_iseven(const mpd_t *dec);
755/* 0 if dec is positive, 1 if dec is negative */
756EXTINLINE uint8_t mpd_sign(const mpd_t *dec);
757/* 1 if dec is positive, -1 if dec is negative */
758EXTINLINE int mpd_arith_sign(const mpd_t *dec);
759EXTINLINE long mpd_radix(void);
760EXTINLINE int mpd_isdynamic(const mpd_t *dec);
761EXTINLINE int mpd_isstatic(const mpd_t *dec);
762EXTINLINE int mpd_isdynamic_data(const mpd_t *dec);
763EXTINLINE int mpd_isstatic_data(const mpd_t *dec);
764EXTINLINE int mpd_isshared_data(const mpd_t *dec);
765EXTINLINE int mpd_isconst_data(const mpd_t *dec);
766EXTINLINE mpd_ssize_t mpd_trail_zeros(const mpd_t *dec);
767
768
769/******************************************************************************/
770/* Set attributes of a decimal */
771/******************************************************************************/
772
773/* set number of decimal digits in the coefficient */
774EXTINLINE void mpd_setdigits(mpd_t *result);
775EXTINLINE void mpd_set_sign(mpd_t *result, uint8_t sign);
776/* copy sign from another decimal */
777EXTINLINE void mpd_signcpy(mpd_t *result, const mpd_t *a);
778EXTINLINE void mpd_set_infinity(mpd_t *result);
779EXTINLINE void mpd_set_qnan(mpd_t *result);
780EXTINLINE void mpd_set_snan(mpd_t *result);
781EXTINLINE void mpd_set_negative(mpd_t *result);
782EXTINLINE void mpd_set_positive(mpd_t *result);
783EXTINLINE void mpd_set_dynamic(mpd_t *result);
784EXTINLINE void mpd_set_static(mpd_t *result);
785EXTINLINE void mpd_set_dynamic_data(mpd_t *result);
786EXTINLINE void mpd_set_static_data(mpd_t *result);
787EXTINLINE void mpd_set_shared_data(mpd_t *result);
788EXTINLINE void mpd_set_const_data(mpd_t *result);
789EXTINLINE void mpd_clear_flags(mpd_t *result);
790EXTINLINE void mpd_set_flags(mpd_t *result, uint8_t flags);
791EXTINLINE void mpd_copy_flags(mpd_t *result, const mpd_t *a);
792
793
794/******************************************************************************/
795/* Error Macros */
796/******************************************************************************/
797
798#define mpd_err_fatal(...) \
799 do {fprintf(stderr, "%s:%d: error: ", __FILE__, __LINE__); \
800 fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
801 abort(); \
802 } while (0)
803#define mpd_err_warn(...) \
804 do {fprintf(stderr, "%s:%d: warning: ", __FILE__, __LINE__); \
805 fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
806 } while (0)
807
808
809/******************************************************************************/
810/* Memory handling */
811/******************************************************************************/
812
813extern void *(* mpd_mallocfunc)(size_t size);
814extern void *(* mpd_callocfunc)(size_t nmemb, size_t size);
815extern void *(* mpd_reallocfunc)(void *ptr, size_t size);
816extern void (* mpd_free)(void *ptr);
817
818void *mpd_callocfunc_em(size_t nmemb, size_t size);
819
820void *mpd_alloc(mpd_size_t nmemb, mpd_size_t size);
821void *mpd_calloc(mpd_size_t nmemb, mpd_size_t size);
822void *mpd_realloc(void *ptr, mpd_size_t nmemb, mpd_size_t size, uint8_t *err);
823void *mpd_sh_alloc(mpd_size_t struct_size, mpd_size_t nmemb, mpd_size_t size);
824
825mpd_t *mpd_qnew(void);
826mpd_t *mpd_new(mpd_context_t *ctx);
827mpd_t *mpd_qnew_size(mpd_ssize_t nwords);
828EXTINLINE void mpd_del(mpd_t *dec);
829
830EXTINLINE void mpd_uint_zero(mpd_uint_t *dest, mpd_size_t len);
831EXTINLINE int mpd_qresize(mpd_t *result, mpd_ssize_t nwords, uint32_t *status);
832EXTINLINE int mpd_qresize_zero(mpd_t *result, mpd_ssize_t nwords, uint32_t *status);
833EXTINLINE void mpd_minalloc(mpd_t *result);
834
835int mpd_resize(mpd_t *result, mpd_ssize_t nwords, mpd_context_t *ctx);
836int mpd_resize_zero(mpd_t *result, mpd_ssize_t nwords, mpd_context_t *ctx);
837
838
839MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */
840
841
842#ifdef __cplusplus
843} /* END extern "C" */
844#endif
845
846
847#endif /* LIBMPDEC_MPDECIMAL_H_ */
848