mpdecimal.h 39 KB

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  1. /*
  2. * Copyright (c) 2008-2016 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. #ifndef MPDECIMAL_H
  28. #define MPDECIMAL_H
  29. #ifdef __cplusplus
  30. extern "C" {
  31. #ifndef __STDC_LIMIT_MACROS
  32. #define __STDC_LIMIT_MACROS
  33. #define MPD_CLEAR_STDC_LIMIT_MACROS
  34. #endif
  35. #endif
  36. #include <stdio.h>
  37. #include <stdlib.h>
  38. #include <string.h>
  39. #include <limits.h>
  40. #include <assert.h>
  41. #include <stdint.h>
  42. #include <inttypes.h>
  43. #ifndef __GNUC_STDC_INLINE__
  44. #define __GNUC_STDC_INLINE__ 1
  45. #endif
  46. #if defined(__GNUC__) && !defined(__INTEL_COMPILER)
  47. #define UNUSED __attribute__((unused))
  48. #else
  49. #define UNUSED
  50. #endif
  51. #if (defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__)) && \
  52. defined(__GNUC__) && __GNUC__ >= 4 && !defined(__INTEL_COMPILER)
  53. #define MPD_PRAGMA(x) _Pragma(x)
  54. #define MPD_HIDE_SYMBOLS_START "GCC visibility push(hidden)"
  55. #define MPD_HIDE_SYMBOLS_END "GCC visibility pop"
  56. #else
  57. #define MPD_PRAGMA(x)
  58. #define MPD_HIDE_SYMBOLS_START
  59. #define MPD_HIDE_SYMBOLS_END
  60. #endif
  61. #if !defined(LEGACY_COMPILER)
  62. #if !defined(UINT64_MAX)
  63. /* The following #error is just a warning. If the compiler indeed does
  64. * not have uint64_t, it is perfectly safe to comment out the #error. */
  65. #error "Warning: Compiler without uint64_t. Comment out this line."
  66. #define LEGACY_COMPILER
  67. #endif
  68. #endif
  69. /******************************************************************************/
  70. /* Version */
  71. /******************************************************************************/
  72. #define MPD_MAJOR_VERSION 2
  73. #define MPD_MINOR_VERSION 4
  74. #define MPD_MICRO_VERSION 1
  75. #define MPD_VERSION "2.4.1"
  76. #define MPD_VERSION_HEX ((MPD_MAJOR_VERSION << 24) | \
  77. (MPD_MINOR_VERSION << 16) | \
  78. (MPD_MICRO_VERSION << 8))
  79. const char *mpd_version(void);
  80. /******************************************************************************/
  81. /* Configuration */
  82. /******************************************************************************/
  83. /* ABI: 64-bit */
  84. #ifdef CONFIG_32
  85. #error "cannot use CONFIG_32 with 64-bit header."
  86. #endif
  87. #ifndef CONFIG_64
  88. #define CONFIG_64
  89. #endif
  90. /* BEGIN CONFIG_64 */
  91. #if defined(CONFIG_64)
  92. /* types for modular and base arithmetic */
  93. #define MPD_UINT_MAX UINT64_MAX
  94. #define MPD_BITS_PER_UINT 64
  95. typedef uint64_t mpd_uint_t; /* unsigned mod type */
  96. #define MPD_SIZE_MAX SIZE_MAX
  97. typedef size_t mpd_size_t; /* unsigned size type */
  98. /* type for exp, digits, len, prec */
  99. #define MPD_SSIZE_MAX INT64_MAX
  100. #define MPD_SSIZE_MIN INT64_MIN
  101. typedef int64_t mpd_ssize_t;
  102. #define _mpd_strtossize strtoll
  103. /* decimal arithmetic */
  104. #define MPD_RADIX 10000000000000000000ULL /* 10**19 */
  105. #define MPD_RDIGITS 19
  106. #define MPD_MAX_POW10 19
  107. #define MPD_EXPDIGITS 19 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
  108. #define MPD_MAXTRANSFORM_2N 4294967296ULL /* 2**32 */
  109. #define MPD_MAX_PREC 999999999999999999LL
  110. #define MPD_MAX_PREC_LOG2 64
  111. #define MPD_ELIMIT 1000000000000000000LL
  112. #define MPD_MAX_EMAX 999999999999999999LL /* ELIMIT-1 */
  113. #define MPD_MIN_EMIN (-999999999999999999LL) /* -EMAX */
  114. #define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
  115. #define MPD_EXP_INF 2000000000000000001LL
  116. #define MPD_EXP_CLAMP (-4000000000000000001LL)
  117. #define MPD_MAXIMPORT 105263157894736842L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
  118. /* conversion specifiers */
  119. #define PRI_mpd_uint_t PRIu64
  120. #define PRI_mpd_ssize_t PRIi64
  121. /* END CONFIG_64 */
  122. /* BEGIN CONFIG_32 */
  123. #elif defined(CONFIG_32)
  124. /* types for modular and base arithmetic */
  125. #define MPD_UINT_MAX UINT32_MAX
  126. #define MPD_BITS_PER_UINT 32
  127. typedef uint32_t mpd_uint_t; /* unsigned mod type */
  128. #ifndef LEGACY_COMPILER
  129. #define MPD_UUINT_MAX UINT64_MAX
  130. typedef uint64_t mpd_uuint_t; /* double width unsigned mod type */
  131. #endif
  132. #define MPD_SIZE_MAX SIZE_MAX
  133. typedef size_t mpd_size_t; /* unsigned size type */
  134. /* type for dec->len, dec->exp, ctx->prec */
  135. #define MPD_SSIZE_MAX INT32_MAX
  136. #define MPD_SSIZE_MIN INT32_MIN
  137. typedef int32_t mpd_ssize_t;
  138. #define _mpd_strtossize strtol
  139. /* decimal arithmetic */
  140. #define MPD_RADIX 1000000000UL /* 10**9 */
  141. #define MPD_RDIGITS 9
  142. #define MPD_MAX_POW10 9
  143. #define MPD_EXPDIGITS 10 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
  144. #define MPD_MAXTRANSFORM_2N 33554432UL /* 2**25 */
  145. #define MPD_MAX_PREC 425000000L
  146. #define MPD_MAX_PREC_LOG2 32
  147. #define MPD_ELIMIT 425000001L
  148. #define MPD_MAX_EMAX 425000000L /* ELIMIT-1 */
  149. #define MPD_MIN_EMIN (-425000000L) /* -EMAX */
  150. #define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
  151. #define MPD_EXP_INF 1000000001L /* allows for emax=999999999 in the tests */
  152. #define MPD_EXP_CLAMP (-2000000001L) /* allows for emin=-999999999 in the tests */
  153. #define MPD_MAXIMPORT 94444445L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
  154. /* conversion specifiers */
  155. #define PRI_mpd_uint_t PRIu32
  156. #define PRI_mpd_ssize_t PRIi32
  157. /* END CONFIG_32 */
  158. #else
  159. #error "define CONFIG_64 or CONFIG_32"
  160. #endif
  161. /* END CONFIG */
  162. #if MPD_SIZE_MAX != MPD_UINT_MAX
  163. #error "unsupported platform: need mpd_size_t == mpd_uint_t"
  164. #endif
  165. /******************************************************************************/
  166. /* Context */
  167. /******************************************************************************/
  168. enum {
  169. MPD_ROUND_UP, /* round away from 0 */
  170. MPD_ROUND_DOWN, /* round toward 0 (truncate) */
  171. MPD_ROUND_CEILING, /* round toward +infinity */
  172. MPD_ROUND_FLOOR, /* round toward -infinity */
  173. MPD_ROUND_HALF_UP, /* 0.5 is rounded up */
  174. MPD_ROUND_HALF_DOWN, /* 0.5 is rounded down */
  175. MPD_ROUND_HALF_EVEN, /* 0.5 is rounded to even */
  176. MPD_ROUND_05UP, /* round zero or five away from 0 */
  177. MPD_ROUND_TRUNC, /* truncate, but set infinity */
  178. MPD_ROUND_GUARD
  179. };
  180. enum { MPD_CLAMP_DEFAULT, MPD_CLAMP_IEEE_754, MPD_CLAMP_GUARD };
  181. extern const char *mpd_round_string[MPD_ROUND_GUARD];
  182. extern const char *mpd_clamp_string[MPD_CLAMP_GUARD];
  183. typedef struct mpd_context_t {
  184. mpd_ssize_t prec; /* precision */
  185. mpd_ssize_t emax; /* max positive exp */
  186. mpd_ssize_t emin; /* min negative exp */
  187. uint32_t traps; /* status events that should be trapped */
  188. uint32_t status; /* status flags */
  189. uint32_t newtrap; /* set by mpd_addstatus_raise() */
  190. int round; /* rounding mode */
  191. int clamp; /* clamp mode */
  192. int allcr; /* all functions correctly rounded */
  193. } mpd_context_t;
  194. /* Status flags */
  195. #define MPD_Clamped 0x00000001U
  196. #define MPD_Conversion_syntax 0x00000002U
  197. #define MPD_Division_by_zero 0x00000004U
  198. #define MPD_Division_impossible 0x00000008U
  199. #define MPD_Division_undefined 0x00000010U
  200. #define MPD_Fpu_error 0x00000020U
  201. #define MPD_Inexact 0x00000040U
  202. #define MPD_Invalid_context 0x00000080U
  203. #define MPD_Invalid_operation 0x00000100U
  204. #define MPD_Malloc_error 0x00000200U
  205. #define MPD_Not_implemented 0x00000400U
  206. #define MPD_Overflow 0x00000800U
  207. #define MPD_Rounded 0x00001000U
  208. #define MPD_Subnormal 0x00002000U
  209. #define MPD_Underflow 0x00004000U
  210. #define MPD_Max_status (0x00008000U-1U)
  211. /* Conditions that result in an IEEE 754 exception */
  212. #define MPD_IEEE_Invalid_operation (MPD_Conversion_syntax | \
  213. MPD_Division_impossible | \
  214. MPD_Division_undefined | \
  215. MPD_Fpu_error | \
  216. MPD_Invalid_context | \
  217. MPD_Invalid_operation | \
  218. MPD_Malloc_error) \
  219. /* Errors that require the result of an operation to be set to NaN */
  220. #define MPD_Errors (MPD_IEEE_Invalid_operation | \
  221. MPD_Division_by_zero)
  222. /* Default traps */
  223. #define MPD_Traps (MPD_IEEE_Invalid_operation | \
  224. MPD_Division_by_zero | \
  225. MPD_Overflow | \
  226. MPD_Underflow)
  227. /* Official name */
  228. #define MPD_Insufficient_storage MPD_Malloc_error
  229. /* IEEE 754 interchange format contexts */
  230. #define MPD_IEEE_CONTEXT_MAX_BITS 512 /* 16*(log2(MPD_MAX_EMAX / 3)-3) */
  231. #define MPD_DECIMAL32 32
  232. #define MPD_DECIMAL64 64
  233. #define MPD_DECIMAL128 128
  234. #define MPD_MINALLOC_MIN 2
  235. #define MPD_MINALLOC_MAX 64
  236. extern mpd_ssize_t MPD_MINALLOC;
  237. extern void (* mpd_traphandler)(mpd_context_t *);
  238. void mpd_dflt_traphandler(mpd_context_t *);
  239. void mpd_setminalloc(mpd_ssize_t n);
  240. void mpd_init(mpd_context_t *ctx, mpd_ssize_t prec);
  241. void mpd_maxcontext(mpd_context_t *ctx);
  242. void mpd_defaultcontext(mpd_context_t *ctx);
  243. void mpd_basiccontext(mpd_context_t *ctx);
  244. int mpd_ieee_context(mpd_context_t *ctx, int bits);
  245. mpd_ssize_t mpd_getprec(const mpd_context_t *ctx);
  246. mpd_ssize_t mpd_getemax(const mpd_context_t *ctx);
  247. mpd_ssize_t mpd_getemin(const mpd_context_t *ctx);
  248. int mpd_getround(const mpd_context_t *ctx);
  249. uint32_t mpd_gettraps(const mpd_context_t *ctx);
  250. uint32_t mpd_getstatus(const mpd_context_t *ctx);
  251. int mpd_getclamp(const mpd_context_t *ctx);
  252. int mpd_getcr(const mpd_context_t *ctx);
  253. int mpd_qsetprec(mpd_context_t *ctx, mpd_ssize_t prec);
  254. int mpd_qsetemax(mpd_context_t *ctx, mpd_ssize_t emax);
  255. int mpd_qsetemin(mpd_context_t *ctx, mpd_ssize_t emin);
  256. int mpd_qsetround(mpd_context_t *ctx, int newround);
  257. int mpd_qsettraps(mpd_context_t *ctx, uint32_t flags);
  258. int mpd_qsetstatus(mpd_context_t *ctx, uint32_t flags);
  259. int mpd_qsetclamp(mpd_context_t *ctx, int c);
  260. int mpd_qsetcr(mpd_context_t *ctx, int c);
  261. void mpd_addstatus_raise(mpd_context_t *ctx, uint32_t flags);
  262. /******************************************************************************/
  263. /* Decimal Arithmetic */
  264. /******************************************************************************/
  265. /* mpd_t flags */
  266. #define MPD_POS ((uint8_t)0)
  267. #define MPD_NEG ((uint8_t)1)
  268. #define MPD_INF ((uint8_t)2)
  269. #define MPD_NAN ((uint8_t)4)
  270. #define MPD_SNAN ((uint8_t)8)
  271. #define MPD_SPECIAL (MPD_INF|MPD_NAN|MPD_SNAN)
  272. #define MPD_STATIC ((uint8_t)16)
  273. #define MPD_STATIC_DATA ((uint8_t)32)
  274. #define MPD_SHARED_DATA ((uint8_t)64)
  275. #define MPD_CONST_DATA ((uint8_t)128)
  276. #define MPD_DATAFLAGS (MPD_STATIC_DATA|MPD_SHARED_DATA|MPD_CONST_DATA)
  277. /* mpd_t */
  278. typedef struct mpd_t {
  279. uint8_t flags;
  280. mpd_ssize_t exp;
  281. mpd_ssize_t digits;
  282. mpd_ssize_t len;
  283. mpd_ssize_t alloc;
  284. mpd_uint_t *data;
  285. } mpd_t;
  286. typedef unsigned char uchar;
  287. /******************************************************************************/
  288. /* Quiet, thread-safe functions */
  289. /******************************************************************************/
  290. /* format specification */
  291. typedef struct mpd_spec_t {
  292. mpd_ssize_t min_width; /* minimum field width */
  293. mpd_ssize_t prec; /* fraction digits or significant digits */
  294. char type; /* conversion specifier */
  295. char align; /* alignment */
  296. char sign; /* sign printing/alignment */
  297. char fill[5]; /* fill character */
  298. const char *dot; /* decimal point */
  299. const char *sep; /* thousands separator */
  300. const char *grouping; /* grouping of digits */
  301. } mpd_spec_t;
  302. /* output to a string */
  303. char *mpd_to_sci(const mpd_t *dec, int fmt);
  304. char *mpd_to_eng(const mpd_t *dec, int fmt);
  305. mpd_ssize_t mpd_to_sci_size(char **res, const mpd_t *dec, int fmt);
  306. mpd_ssize_t mpd_to_eng_size(char **res, const mpd_t *dec, int fmt);
  307. int mpd_validate_lconv(mpd_spec_t *spec);
  308. int mpd_parse_fmt_str(mpd_spec_t *spec, const char *fmt, int caps);
  309. char *mpd_qformat_spec(const mpd_t *dec, const mpd_spec_t *spec, const mpd_context_t *ctx, uint32_t *status);
  310. char *mpd_qformat(const mpd_t *dec, const char *fmt, const mpd_context_t *ctx, uint32_t *status);
  311. #define MPD_NUM_FLAGS 15
  312. #define MPD_MAX_FLAG_STRING 208
  313. #define MPD_MAX_FLAG_LIST (MPD_MAX_FLAG_STRING+18)
  314. #define MPD_MAX_SIGNAL_LIST 121
  315. int mpd_snprint_flags(char *dest, int nmemb, uint32_t flags);
  316. int mpd_lsnprint_flags(char *dest, int nmemb, uint32_t flags, const char *flag_string[]);
  317. int mpd_lsnprint_signals(char *dest, int nmemb, uint32_t flags, const char *signal_string[]);
  318. /* output to a file */
  319. void mpd_fprint(FILE *file, const mpd_t *dec);
  320. void mpd_print(const mpd_t *dec);
  321. /* assignment from a string */
  322. void mpd_qset_string(mpd_t *dec, const char *s, const mpd_context_t *ctx, uint32_t *status);
  323. /* set to NaN with error flags */
  324. void mpd_seterror(mpd_t *result, uint32_t flags, uint32_t *status);
  325. /* set a special with sign and type */
  326. void mpd_setspecial(mpd_t *dec, uint8_t sign, uint8_t type);
  327. /* set coefficient to zero or all nines */
  328. void mpd_zerocoeff(mpd_t *result);
  329. void mpd_qmaxcoeff(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
  330. /* quietly assign a C integer type to an mpd_t */
  331. void mpd_qset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
  332. void mpd_qset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
  333. void mpd_qset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
  334. void mpd_qset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
  335. #ifndef LEGACY_COMPILER
  336. void mpd_qset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
  337. void mpd_qset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
  338. #endif
  339. /* quietly assign a C integer type to an mpd_t with a static coefficient */
  340. void mpd_qsset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
  341. void mpd_qsset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
  342. void mpd_qsset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
  343. void mpd_qsset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
  344. /* quietly get a C integer type from an mpd_t */
  345. mpd_ssize_t mpd_qget_ssize(const mpd_t *dec, uint32_t *status);
  346. mpd_uint_t mpd_qget_uint(const mpd_t *dec, uint32_t *status);
  347. mpd_uint_t mpd_qabs_uint(const mpd_t *dec, uint32_t *status);
  348. int32_t mpd_qget_i32(const mpd_t *dec, uint32_t *status);
  349. uint32_t mpd_qget_u32(const mpd_t *dec, uint32_t *status);
  350. #ifndef LEGACY_COMPILER
  351. int64_t mpd_qget_i64(const mpd_t *dec, uint32_t *status);
  352. uint64_t mpd_qget_u64(const mpd_t *dec, uint32_t *status);
  353. #endif
  354. /* quiet functions */
  355. int mpd_qcheck_nan(mpd_t *nanresult, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  356. int mpd_qcheck_nans(mpd_t *nanresult, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  357. void mpd_qfinalize(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
  358. const char *mpd_class(const mpd_t *a, const mpd_context_t *ctx);
  359. int mpd_qcopy(mpd_t *result, const mpd_t *a, uint32_t *status);
  360. mpd_t *mpd_qncopy(const mpd_t *a);
  361. int mpd_qcopy_abs(mpd_t *result, const mpd_t *a, uint32_t *status);
  362. int mpd_qcopy_negate(mpd_t *result, const mpd_t *a, uint32_t *status);
  363. int mpd_qcopy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, uint32_t *status);
  364. void mpd_qand(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  365. void mpd_qinvert(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  366. void mpd_qlogb(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  367. void mpd_qor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  368. void mpd_qscaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  369. void mpd_qxor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  370. int mpd_same_quantum(const mpd_t *a, const mpd_t *b);
  371. void mpd_qrotate(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  372. int mpd_qshiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
  373. mpd_uint_t mpd_qshiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
  374. mpd_uint_t mpd_qshiftr_inplace(mpd_t *result, mpd_ssize_t n);
  375. void mpd_qshift(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  376. void mpd_qshiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, const mpd_context_t *ctx, uint32_t *status);
  377. int mpd_qcmp(const mpd_t *a, const mpd_t *b, uint32_t *status);
  378. int mpd_qcompare(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  379. int mpd_qcompare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  380. int mpd_cmp_total(const mpd_t *a, const mpd_t *b);
  381. int mpd_cmp_total_mag(const mpd_t *a, const mpd_t *b);
  382. int mpd_compare_total(mpd_t *result, const mpd_t *a, const mpd_t *b);
  383. int mpd_compare_total_mag(mpd_t *result, const mpd_t *a, const mpd_t *b);
  384. void mpd_qround_to_intx(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  385. void mpd_qround_to_int(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  386. void mpd_qtrunc(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  387. void mpd_qfloor(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  388. void mpd_qceil(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  389. void mpd_qabs(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  390. void mpd_qmax(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  391. void mpd_qmax_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  392. void mpd_qmin(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  393. void mpd_qmin_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  394. void mpd_qminus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  395. void mpd_qplus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  396. void mpd_qnext_minus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  397. void mpd_qnext_plus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  398. void mpd_qnext_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  399. void mpd_qquantize(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  400. void mpd_qrescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
  401. void mpd_qrescale_fmt(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
  402. void mpd_qreduce(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  403. void mpd_qadd(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  404. void mpd_qadd_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
  405. void mpd_qadd_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
  406. void mpd_qadd_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
  407. void mpd_qadd_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
  408. void mpd_qsub(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  409. void mpd_qsub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
  410. void mpd_qsub_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
  411. void mpd_qsub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
  412. void mpd_qsub_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
  413. void mpd_qmul(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  414. void mpd_qmul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
  415. void mpd_qmul_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
  416. void mpd_qmul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
  417. void mpd_qmul_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
  418. void 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);
  419. void mpd_qdiv(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  420. void mpd_qdiv_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
  421. void mpd_qdiv_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
  422. void mpd_qdiv_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
  423. void mpd_qdiv_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
  424. void mpd_qdivint(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  425. void mpd_qrem(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  426. void mpd_qrem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  427. void mpd_qdivmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
  428. void mpd_qpow(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_context_t *ctx, uint32_t *status);
  429. void 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);
  430. void mpd_qexp(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  431. void mpd_qln10(mpd_t *result, mpd_ssize_t prec, uint32_t *status);
  432. void mpd_qln(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  433. void mpd_qlog10(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  434. void mpd_qsqrt(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  435. void mpd_qinvroot(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
  436. #ifndef LEGACY_COMPILER
  437. void mpd_qadd_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
  438. void mpd_qadd_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
  439. void mpd_qsub_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
  440. void mpd_qsub_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
  441. void mpd_qmul_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
  442. void mpd_qmul_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
  443. void mpd_qdiv_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
  444. void mpd_qdiv_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
  445. #endif
  446. size_t mpd_sizeinbase(const mpd_t *a, uint32_t base);
  447. void mpd_qimport_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen,
  448. uint8_t srcsign, uint32_t srcbase,
  449. const mpd_context_t *ctx, uint32_t *status);
  450. void mpd_qimport_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen,
  451. uint8_t srcsign, uint32_t srcbase,
  452. const mpd_context_t *ctx, uint32_t *status);
  453. size_t mpd_qexport_u16(uint16_t **rdata, size_t rlen, uint32_t base,
  454. const mpd_t *src, uint32_t *status);
  455. size_t mpd_qexport_u32(uint32_t **rdata, size_t rlen, uint32_t base,
  456. const mpd_t *src, uint32_t *status);
  457. /******************************************************************************/
  458. /* Signalling functions */
  459. /******************************************************************************/
  460. char *mpd_format(const mpd_t *dec, const char *fmt, mpd_context_t *ctx);
  461. void mpd_import_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
  462. void mpd_import_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
  463. size_t mpd_export_u16(uint16_t **rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
  464. size_t mpd_export_u32(uint32_t **rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
  465. void mpd_finalize(mpd_t *result, mpd_context_t *ctx);
  466. int mpd_check_nan(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  467. int mpd_check_nans(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  468. void mpd_set_string(mpd_t *result, const char *s, mpd_context_t *ctx);
  469. void mpd_maxcoeff(mpd_t *result, mpd_context_t *ctx);
  470. void mpd_sset_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
  471. void mpd_sset_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
  472. void mpd_sset_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
  473. void mpd_sset_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
  474. void mpd_set_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
  475. void mpd_set_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
  476. void mpd_set_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
  477. void mpd_set_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
  478. #ifndef LEGACY_COMPILER
  479. void mpd_set_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
  480. void mpd_set_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
  481. #endif
  482. mpd_ssize_t mpd_get_ssize(const mpd_t *a, mpd_context_t *ctx);
  483. mpd_uint_t mpd_get_uint(const mpd_t *a, mpd_context_t *ctx);
  484. mpd_uint_t mpd_abs_uint(const mpd_t *a, mpd_context_t *ctx);
  485. int32_t mpd_get_i32(const mpd_t *a, mpd_context_t *ctx);
  486. uint32_t mpd_get_u32(const mpd_t *a, mpd_context_t *ctx);
  487. #ifndef LEGACY_COMPILER
  488. int64_t mpd_get_i64(const mpd_t *a, mpd_context_t *ctx);
  489. uint64_t mpd_get_u64(const mpd_t *a, mpd_context_t *ctx);
  490. #endif
  491. void mpd_and(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  492. void mpd_copy(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  493. void mpd_canonical(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  494. void mpd_copy_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  495. void mpd_copy_negate(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  496. void mpd_copy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  497. void mpd_invert(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  498. void mpd_logb(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  499. void mpd_or(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  500. void mpd_rotate(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  501. void mpd_scaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  502. void mpd_shiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
  503. mpd_uint_t mpd_shiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
  504. void mpd_shiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
  505. void mpd_shift(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  506. void mpd_xor(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  507. void mpd_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  508. int mpd_cmp(const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  509. int mpd_compare(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  510. int mpd_compare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  511. void mpd_add(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  512. void mpd_add_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
  513. void mpd_add_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
  514. void mpd_add_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
  515. void mpd_add_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
  516. void mpd_sub(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  517. void mpd_sub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
  518. void mpd_sub_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
  519. void mpd_sub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
  520. void mpd_sub_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
  521. void mpd_div(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  522. void mpd_div_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
  523. void mpd_div_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
  524. void mpd_div_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
  525. void mpd_div_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
  526. void mpd_divmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  527. void mpd_divint(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  528. void mpd_exp(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  529. void mpd_fma(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_t *c, mpd_context_t *ctx);
  530. void mpd_ln(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  531. void mpd_log10(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  532. void mpd_max(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  533. void mpd_max_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  534. void mpd_min(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  535. void mpd_min_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  536. void mpd_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  537. void mpd_mul(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  538. void mpd_mul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
  539. void mpd_mul_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
  540. void mpd_mul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
  541. void mpd_mul_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
  542. void mpd_next_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  543. void mpd_next_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  544. void mpd_next_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  545. void mpd_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  546. void mpd_pow(mpd_t *result, const mpd_t *base, const mpd_t *exp, mpd_context_t *ctx);
  547. void mpd_powmod(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_t *mod, mpd_context_t *ctx);
  548. void mpd_quantize(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  549. void mpd_rescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, mpd_context_t *ctx);
  550. void mpd_reduce(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  551. void mpd_rem(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  552. void mpd_rem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
  553. void mpd_round_to_intx(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  554. void mpd_round_to_int(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  555. void mpd_trunc(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  556. void mpd_floor(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  557. void mpd_ceil(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  558. void mpd_sqrt(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  559. void mpd_invroot(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
  560. #ifndef LEGACY_COMPILER
  561. void mpd_add_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
  562. void mpd_add_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
  563. void mpd_sub_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
  564. void mpd_sub_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
  565. void mpd_div_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
  566. void mpd_div_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
  567. void mpd_mul_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
  568. void mpd_mul_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
  569. #endif
  570. /******************************************************************************/
  571. /* Configuration specific */
  572. /******************************************************************************/
  573. #ifdef CONFIG_64
  574. void mpd_qsset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
  575. void mpd_qsset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
  576. void mpd_sset_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
  577. void mpd_sset_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
  578. #endif
  579. /******************************************************************************/
  580. /* Get attributes of a decimal */
  581. /******************************************************************************/
  582. mpd_ssize_t mpd_adjexp(const mpd_t *dec);
  583. mpd_ssize_t mpd_etiny(const mpd_context_t *ctx);
  584. mpd_ssize_t mpd_etop(const mpd_context_t *ctx);
  585. mpd_uint_t mpd_msword(const mpd_t *dec);
  586. int mpd_word_digits(mpd_uint_t word);
  587. /* most significant digit of a word */
  588. mpd_uint_t mpd_msd(mpd_uint_t word);
  589. /* least significant digit of a word */
  590. mpd_uint_t mpd_lsd(mpd_uint_t word);
  591. /* coefficient size needed to store 'digits' */
  592. mpd_ssize_t mpd_digits_to_size(mpd_ssize_t digits);
  593. /* number of digits in the exponent, undefined for MPD_SSIZE_MIN */
  594. int mpd_exp_digits(mpd_ssize_t exp);
  595. int mpd_iscanonical(const mpd_t *dec UNUSED);
  596. int mpd_isfinite(const mpd_t *dec);
  597. int mpd_isinfinite(const mpd_t *dec);
  598. int mpd_isinteger(const mpd_t *dec);
  599. int mpd_isnan(const mpd_t *dec);
  600. int mpd_isnegative(const mpd_t *dec);
  601. int mpd_ispositive(const mpd_t *dec);
  602. int mpd_isqnan(const mpd_t *dec);
  603. int mpd_issigned(const mpd_t *dec);
  604. int mpd_issnan(const mpd_t *dec);
  605. int mpd_isspecial(const mpd_t *dec);
  606. int mpd_iszero(const mpd_t *dec);
  607. /* undefined for special numbers */
  608. int mpd_iszerocoeff(const mpd_t *dec);
  609. int mpd_isnormal(const mpd_t *dec, const mpd_context_t *ctx);
  610. int mpd_issubnormal(const mpd_t *dec, const mpd_context_t *ctx);
  611. /* odd word */
  612. int mpd_isoddword(mpd_uint_t word);
  613. /* odd coefficient */
  614. int mpd_isoddcoeff(const mpd_t *dec);
  615. /* odd decimal, only defined for integers */
  616. int mpd_isodd(const mpd_t *dec);
  617. /* even decimal, only defined for integers */
  618. int mpd_iseven(const mpd_t *dec);
  619. /* 0 if dec is positive, 1 if dec is negative */
  620. uint8_t mpd_sign(const mpd_t *dec);
  621. /* 1 if dec is positive, -1 if dec is negative */
  622. int mpd_arith_sign(const mpd_t *dec);
  623. long mpd_radix(void);
  624. int mpd_isdynamic(const mpd_t *dec);
  625. int mpd_isstatic(const mpd_t *dec);
  626. int mpd_isdynamic_data(const mpd_t *dec);
  627. int mpd_isstatic_data(const mpd_t *dec);
  628. int mpd_isshared_data(const mpd_t *dec);
  629. int mpd_isconst_data(const mpd_t *dec);
  630. mpd_ssize_t mpd_trail_zeros(const mpd_t *dec);
  631. /******************************************************************************/
  632. /* Set attributes of a decimal */
  633. /******************************************************************************/
  634. /* set number of decimal digits in the coefficient */
  635. void mpd_setdigits(mpd_t *result);
  636. void mpd_set_sign(mpd_t *result, uint8_t sign);
  637. /* copy sign from another decimal */
  638. void mpd_signcpy(mpd_t *result, const mpd_t *a);
  639. void mpd_set_infinity(mpd_t *result);
  640. void mpd_set_qnan(mpd_t *result);
  641. void mpd_set_snan(mpd_t *result);
  642. void mpd_set_negative(mpd_t *result);
  643. void mpd_set_positive(mpd_t *result);
  644. void mpd_set_dynamic(mpd_t *result);
  645. void mpd_set_static(mpd_t *result);
  646. void mpd_set_dynamic_data(mpd_t *result);
  647. void mpd_set_static_data(mpd_t *result);
  648. void mpd_set_shared_data(mpd_t *result);
  649. void mpd_set_const_data(mpd_t *result);
  650. void mpd_clear_flags(mpd_t *result);
  651. void mpd_set_flags(mpd_t *result, uint8_t flags);
  652. void mpd_copy_flags(mpd_t *result, const mpd_t *a);
  653. /******************************************************************************/
  654. /* Error Macros */
  655. /******************************************************************************/
  656. #define mpd_err_fatal(...) \
  657. do {fprintf(stderr, "%s:%d: error: ", __FILE__, __LINE__); \
  658. fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
  659. abort(); \
  660. } while (0)
  661. #define mpd_err_warn(...) \
  662. do {fprintf(stderr, "%s:%d: warning: ", __FILE__, __LINE__); \
  663. fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
  664. } while (0)
  665. /******************************************************************************/
  666. /* Memory handling */
  667. /******************************************************************************/
  668. extern void *(* mpd_mallocfunc)(size_t size);
  669. extern void *(* mpd_callocfunc)(size_t nmemb, size_t size);
  670. extern void *(* mpd_reallocfunc)(void *ptr, size_t size);
  671. extern void (* mpd_free)(void *ptr);
  672. void *mpd_callocfunc_em(size_t nmemb, size_t size);
  673. void *mpd_alloc(mpd_size_t nmemb, mpd_size_t size);
  674. void *mpd_calloc(mpd_size_t nmemb, mpd_size_t size);
  675. void *mpd_realloc(void *ptr, mpd_size_t nmemb, mpd_size_t size, uint8_t *err);
  676. void *mpd_sh_alloc(mpd_size_t struct_size, mpd_size_t nmemb, mpd_size_t size);
  677. mpd_t *mpd_qnew(void);
  678. mpd_t *mpd_new(mpd_context_t *ctx);
  679. mpd_t *mpd_qnew_size(mpd_ssize_t size);
  680. void mpd_del(mpd_t *dec);
  681. void mpd_uint_zero(mpd_uint_t *dest, mpd_size_t len);
  682. int mpd_qresize(mpd_t *result, mpd_ssize_t size, uint32_t *status);
  683. int mpd_qresize_zero(mpd_t *result, mpd_ssize_t size, uint32_t *status);
  684. void mpd_minalloc(mpd_t *result);
  685. int mpd_resize(mpd_t *result, mpd_ssize_t size, mpd_context_t *ctx);
  686. int mpd_resize_zero(mpd_t *result, mpd_ssize_t size, mpd_context_t *ctx);
  687. #ifdef __cplusplus
  688. #ifdef MPD_CLEAR_STDC_LIMIT_MACROS
  689. #undef MPD_CLEAR_STDC_LIMIT_MACROS
  690. #undef __STDC_LIMIT_MACROS
  691. #endif
  692. } /* END extern "C" */
  693. #endif
  694. #endif /* MPDECIMAL_H */