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