Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008-2012 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 | #include <Python.h> |
| 30 | #include "longintrepr.h" |
| 31 | #include "pythread.h" |
| 32 | #include "structmember.h" |
| 33 | #include "complexobject.h" |
| 34 | #include "mpdecimal.h" |
| 35 | |
| 36 | #include <stdlib.h> |
| 37 | |
| 38 | #include "docstrings.h" |
| 39 | #include "memory.h" |
| 40 | |
| 41 | |
| 42 | /* |
| 43 | * Type sizes with assertions in mpdecimal.h and pyport.h: |
| 44 | * sizeof(size_t) == sizeof(Py_ssize_t) |
| 45 | * sizeof(size_t) == sizeof(mpd_uint_t) == sizeof(mpd_ssize_t) |
| 46 | */ |
| 47 | |
| 48 | #ifdef TEST_COVERAGE |
| 49 | #undef Py_LOCAL_INLINE |
| 50 | #define Py_LOCAL_INLINE Py_LOCAL |
| 51 | #endif |
| 52 | |
| 53 | #define MPD_Float_operation MPD_Not_implemented |
| 54 | |
| 55 | #define BOUNDS_CHECK(x, MIN, MAX) x = (x < MIN || MAX < x) ? MAX : x |
| 56 | |
| 57 | |
| 58 | typedef struct { |
| 59 | PyObject_HEAD |
| 60 | mpd_t *dec; |
| 61 | } PyDecObject; |
| 62 | |
| 63 | typedef struct { |
| 64 | PyObject_HEAD |
| 65 | uint32_t *flags; |
| 66 | } PyDecSignalDictObject; |
| 67 | |
| 68 | typedef struct { |
| 69 | PyObject_HEAD |
| 70 | mpd_context_t ctx; |
| 71 | PyObject *traps; |
| 72 | PyObject *flags; |
| 73 | int capitals; |
| 74 | } PyDecContextObject; |
| 75 | |
| 76 | typedef struct { |
| 77 | PyObject_HEAD |
| 78 | PyObject *local; |
| 79 | PyObject *global; |
| 80 | } PyDecContextManagerObject; |
| 81 | |
| 82 | |
| 83 | #undef MPD |
| 84 | #undef CTX |
| 85 | static PyTypeObject PyDec_Type; |
| 86 | static PyTypeObject *PyDecSignalDict_Type; |
| 87 | static PyTypeObject PyDecContext_Type; |
| 88 | static PyTypeObject PyDecContextManager_Type; |
| 89 | #define PyDec_CheckExact(v) (Py_TYPE(v) == &PyDec_Type) |
| 90 | #define PyDec_Check(v) PyObject_TypeCheck(v, &PyDec_Type) |
| 91 | #define PyDecSignalDict_Check(v) (Py_TYPE(v) == PyDecSignalDict_Type) |
| 92 | #define PyDecContext_Check(v) PyObject_TypeCheck(v, &PyDecContext_Type) |
| 93 | #define MPD(v) (((PyDecObject *)v)->dec) |
| 94 | #define SdFlagAddr(v) (((PyDecSignalDictObject *)v)->flags) |
| 95 | #define SdFlags(v) (*((PyDecSignalDictObject *)v)->flags) |
| 96 | #define CTX(v) (&((PyDecContextObject *)v)->ctx) |
| 97 | #define CtxCaps(v) (((PyDecContextObject *)v)->capitals) |
| 98 | |
| 99 | |
| 100 | Py_LOCAL_INLINE(PyObject *) |
| 101 | incr_true(void) |
| 102 | { |
| 103 | Py_INCREF(Py_True); |
| 104 | return Py_True; |
| 105 | } |
| 106 | |
| 107 | Py_LOCAL_INLINE(PyObject *) |
| 108 | incr_false(void) |
| 109 | { |
| 110 | Py_INCREF(Py_False); |
| 111 | return Py_False; |
| 112 | } |
| 113 | |
| 114 | |
| 115 | #ifdef WITHOUT_THREADS |
| 116 | /* Default module context */ |
| 117 | static PyObject *module_context = NULL; |
| 118 | #else |
| 119 | /* Key for thread state dictionary */ |
| 120 | static PyObject *tls_context_key = NULL; |
| 121 | #endif |
| 122 | |
| 123 | /* Template for creating new thread contexts, calling Context() without |
| 124 | * arguments and initializing the module_context on first access. */ |
| 125 | static PyObject *default_context_template = NULL; |
| 126 | /* Basic and extended context templates */ |
| 127 | static PyObject *basic_context_template = NULL; |
| 128 | static PyObject *extended_context_template = NULL; |
| 129 | |
| 130 | |
| 131 | /* Error codes for functions that return signals or conditions */ |
| 132 | #define DEC_INVALID_SIGNALS (MPD_Max_status+1U) |
| 133 | #define DEC_ERR_OCCURRED (DEC_INVALID_SIGNALS<<1) |
| 134 | #define DEC_ERRORS (DEC_INVALID_SIGNALS|DEC_ERR_OCCURRED) |
| 135 | |
| 136 | typedef struct { |
| 137 | const char *name; /* condition or signal name */ |
| 138 | const char *fqname; /* fully qualified name */ |
| 139 | uint32_t flag; /* libmpdec flag */ |
| 140 | PyObject *ex; /* corresponding exception */ |
| 141 | } DecCondMap; |
| 142 | |
| 143 | /* Top level Exception; inherits from ArithmeticError */ |
| 144 | static PyObject *DecimalException = NULL; |
| 145 | |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 146 | /* Exceptions that correspond to IEEE signals */ |
| 147 | #define SUBNORMAL 5 |
| 148 | #define INEXACT 6 |
| 149 | #define ROUNDED 7 |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 150 | #define SIGNAL_MAP_LEN 9 |
| 151 | static DecCondMap signal_map[] = { |
| 152 | {"InvalidOperation", "decimal.InvalidOperation", MPD_IEEE_Invalid_operation, NULL}, |
| 153 | {"FloatOperation", "decimal.FloatOperation", MPD_Float_operation, NULL}, |
| 154 | {"DivisionByZero", "decimal.DivisionByZero", MPD_Division_by_zero, NULL}, |
| 155 | {"Overflow", "decimal.Overflow", MPD_Overflow, NULL}, |
| 156 | {"Underflow", "decimal.Underflow", MPD_Underflow, NULL}, |
| 157 | {"Subnormal", "decimal.Subnormal", MPD_Subnormal, NULL}, |
| 158 | {"Inexact", "decimal.Inexact", MPD_Inexact, NULL}, |
| 159 | {"Rounded", "decimal.Rounded", MPD_Rounded, NULL}, |
| 160 | {"Clamped", "decimal.Clamped", MPD_Clamped, NULL}, |
| 161 | {NULL} |
| 162 | }; |
| 163 | |
| 164 | /* Exceptions that inherit from InvalidOperation */ |
| 165 | static DecCondMap cond_map[] = { |
| 166 | {"InvalidOperation", "decimal.InvalidOperation", MPD_Invalid_operation, NULL}, |
| 167 | {"ConversionSyntax", "decimal.ConversionSyntax", MPD_Conversion_syntax, NULL}, |
| 168 | {"DivisionImpossible", "decimal.DivisionImpossible", MPD_Division_impossible, NULL}, |
| 169 | {"DivisionUndefined", "decimal.DivisionUndefined", MPD_Division_undefined, NULL}, |
| 170 | {"InvalidContext", "decimal.InvalidContext", MPD_Invalid_context, NULL}, |
Stefan Krah | fe17b2b | 2012-03-25 18:59:21 +0200 | [diff] [blame^] | 171 | #ifdef EXTRA_FUNCTIONALITY |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 172 | {"MallocError", "decimal.MallocError", MPD_Malloc_error, NULL}, |
Stefan Krah | fe17b2b | 2012-03-25 18:59:21 +0200 | [diff] [blame^] | 173 | #endif |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 174 | {NULL} |
| 175 | }; |
| 176 | |
| 177 | static const char *dec_signal_string[MPD_NUM_FLAGS] = { |
| 178 | "Clamped", |
| 179 | "InvalidOperation", |
| 180 | "DivisionByZero", |
| 181 | "InvalidOperation", |
| 182 | "InvalidOperation", |
| 183 | "InvalidOperation", |
| 184 | "Inexact", |
| 185 | "InvalidOperation", |
| 186 | "InvalidOperation", |
| 187 | "InvalidOperation", |
| 188 | "FloatOperation", |
| 189 | "Overflow", |
| 190 | "Rounded", |
| 191 | "Subnormal", |
| 192 | "Underflow", |
| 193 | }; |
| 194 | |
| 195 | static const char *invalid_rounding_err = |
| 196 | "valid values for rounding are:\n\ |
| 197 | [ROUND_CEILING, ROUND_FLOOR, ROUND_UP, ROUND_DOWN,\n\ |
| 198 | ROUND_HALF_UP, ROUND_HALF_DOWN, ROUND_HALF_EVEN,\n\ |
| 199 | ROUND_05UP]"; |
| 200 | |
| 201 | static const char *invalid_signals_err = |
| 202 | "valid values for signals are:\n\ |
| 203 | [InvalidOperation, FloatOperation, DivisionByZero,\n\ |
| 204 | Overflow, Underflow, Subnormal, Inexact, Rounded,\n\ |
| 205 | Clamped]"; |
| 206 | |
| 207 | #ifdef EXTRA_FUNCTIONALITY |
| 208 | static const char *invalid_flags_err = |
| 209 | "valid values for _flags or _traps are:\n\ |
| 210 | signals:\n\ |
| 211 | [DecIEEEInvalidOperation, DecFloatOperation, DecDivisionByZero,\n\ |
| 212 | DecOverflow, DecUnderflow, DecSubnormal, DecInexact, DecRounded,\n\ |
| 213 | DecClamped]\n\ |
| 214 | conditions which trigger DecIEEEInvalidOperation:\n\ |
| 215 | [DecInvalidOperation, DecConversionSyntax, DecDivisionImpossible,\n\ |
| 216 | DecDivisionUndefined, DecFpuError, DecInvalidContext, DecMallocError]"; |
| 217 | #endif |
| 218 | |
| 219 | static int |
| 220 | value_error_int(const char *mesg) |
| 221 | { |
| 222 | PyErr_SetString(PyExc_ValueError, mesg); |
| 223 | return -1; |
| 224 | } |
| 225 | |
| 226 | #ifdef CONFIG_32 |
| 227 | static PyObject * |
| 228 | value_error_ptr(const char *mesg) |
| 229 | { |
| 230 | PyErr_SetString(PyExc_ValueError, mesg); |
| 231 | return NULL; |
| 232 | } |
| 233 | #endif |
| 234 | |
| 235 | static int |
| 236 | type_error_int(const char *mesg) |
| 237 | { |
| 238 | PyErr_SetString(PyExc_TypeError, mesg); |
| 239 | return -1; |
| 240 | } |
| 241 | |
| 242 | static PyObject * |
| 243 | type_error_ptr(const char *mesg) |
| 244 | { |
| 245 | PyErr_SetString(PyExc_TypeError, mesg); |
| 246 | return NULL; |
| 247 | } |
| 248 | |
| 249 | static int |
| 250 | runtime_error_int(const char *mesg) |
| 251 | { |
| 252 | PyErr_SetString(PyExc_RuntimeError, mesg); |
| 253 | return -1; |
| 254 | } |
| 255 | #define INTERNAL_ERROR_INT(funcname) \ |
| 256 | return runtime_error_int("internal error in " funcname) |
| 257 | |
| 258 | static PyObject * |
| 259 | runtime_error_ptr(const char *mesg) |
| 260 | { |
| 261 | PyErr_SetString(PyExc_RuntimeError, mesg); |
| 262 | return NULL; |
| 263 | } |
| 264 | #define INTERNAL_ERROR_PTR(funcname) \ |
| 265 | return runtime_error_ptr("internal error in " funcname) |
| 266 | |
| 267 | static void |
| 268 | dec_traphandler(mpd_context_t *ctx UNUSED) /* GCOV_NOT_REACHED */ |
| 269 | { /* GCOV_NOT_REACHED */ |
| 270 | return; /* GCOV_NOT_REACHED */ |
| 271 | } |
| 272 | |
| 273 | static PyObject * |
| 274 | flags_as_exception(uint32_t flags) |
| 275 | { |
| 276 | DecCondMap *cm; |
| 277 | |
| 278 | for (cm = signal_map; cm->name != NULL; cm++) { |
| 279 | if (flags&cm->flag) { |
| 280 | return cm->ex; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | INTERNAL_ERROR_PTR("flags_as_exception"); /* GCOV_NOT_REACHED */ |
| 285 | } |
| 286 | |
| 287 | Py_LOCAL_INLINE(uint32_t) |
| 288 | exception_as_flag(PyObject *ex) |
| 289 | { |
| 290 | DecCondMap *cm; |
| 291 | |
| 292 | for (cm = signal_map; cm->name != NULL; cm++) { |
| 293 | if (cm->ex == ex) { |
| 294 | return cm->flag; |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | PyErr_SetString(PyExc_KeyError, invalid_signals_err); |
| 299 | return DEC_INVALID_SIGNALS; |
| 300 | } |
| 301 | |
| 302 | static PyObject * |
| 303 | flags_as_list(uint32_t flags) |
| 304 | { |
| 305 | PyObject *list; |
| 306 | DecCondMap *cm; |
| 307 | |
| 308 | list = PyList_New(0); |
| 309 | if (list == NULL) { |
| 310 | return NULL; |
| 311 | } |
| 312 | |
| 313 | for (cm = cond_map; cm->name != NULL; cm++) { |
| 314 | if (flags&cm->flag) { |
| 315 | if (PyList_Append(list, cm->ex) < 0) { |
| 316 | goto error; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | for (cm = signal_map+1; cm->name != NULL; cm++) { |
| 321 | if (flags&cm->flag) { |
| 322 | if (PyList_Append(list, cm->ex) < 0) { |
| 323 | goto error; |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | return list; |
| 329 | |
| 330 | error: |
| 331 | Py_DECREF(list); |
| 332 | return NULL; |
| 333 | } |
| 334 | |
| 335 | static PyObject * |
| 336 | signals_as_list(uint32_t flags) |
| 337 | { |
| 338 | PyObject *list; |
| 339 | DecCondMap *cm; |
| 340 | |
| 341 | list = PyList_New(0); |
| 342 | if (list == NULL) { |
| 343 | return NULL; |
| 344 | } |
| 345 | |
| 346 | for (cm = signal_map; cm->name != NULL; cm++) { |
| 347 | if (flags&cm->flag) { |
| 348 | if (PyList_Append(list, cm->ex) < 0) { |
| 349 | Py_DECREF(list); |
| 350 | return NULL; |
| 351 | } |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | return list; |
| 356 | } |
| 357 | |
| 358 | static uint32_t |
| 359 | list_as_flags(PyObject *list) |
| 360 | { |
| 361 | PyObject *item; |
| 362 | uint32_t flags, x; |
| 363 | Py_ssize_t n, j; |
| 364 | |
| 365 | assert(PyList_Check(list)); |
| 366 | |
| 367 | n = PyList_Size(list); |
| 368 | flags = 0; |
| 369 | for (j = 0; j < n; j++) { |
| 370 | item = PyList_GetItem(list, j); |
| 371 | x = exception_as_flag(item); |
| 372 | if (x & DEC_ERRORS) { |
| 373 | return x; |
| 374 | } |
| 375 | flags |= x; |
| 376 | } |
| 377 | |
| 378 | return flags; |
| 379 | } |
| 380 | |
| 381 | static PyObject * |
| 382 | flags_as_dict(uint32_t flags) |
| 383 | { |
| 384 | DecCondMap *cm; |
| 385 | PyObject *dict; |
| 386 | |
| 387 | dict = PyDict_New(); |
| 388 | if (dict == NULL) { |
| 389 | return NULL; |
| 390 | } |
| 391 | |
| 392 | for (cm = signal_map; cm->name != NULL; cm++) { |
| 393 | PyObject *b = flags&cm->flag ? Py_True : Py_False; |
| 394 | if (PyDict_SetItem(dict, cm->ex, b) < 0) { |
| 395 | Py_DECREF(dict); |
| 396 | return NULL; |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | return dict; |
| 401 | } |
| 402 | |
| 403 | static uint32_t |
| 404 | dict_as_flags(PyObject *val) |
| 405 | { |
| 406 | PyObject *b; |
| 407 | DecCondMap *cm; |
| 408 | uint32_t flags = 0; |
| 409 | int x; |
| 410 | |
| 411 | if (!PyDict_Check(val)) { |
| 412 | PyErr_SetString(PyExc_TypeError, |
| 413 | "argument must be a signal dict"); |
| 414 | return DEC_INVALID_SIGNALS; |
| 415 | } |
| 416 | |
| 417 | if (PyDict_Size(val) != SIGNAL_MAP_LEN) { |
| 418 | PyErr_SetString(PyExc_KeyError, |
| 419 | "invalid signal dict"); |
| 420 | return DEC_INVALID_SIGNALS; |
| 421 | } |
| 422 | |
| 423 | for (cm = signal_map; cm->name != NULL; cm++) { |
| 424 | b = PyDict_GetItemWithError(val, cm->ex); |
| 425 | if (b == NULL) { |
| 426 | if (PyErr_Occurred()) { |
| 427 | return DEC_ERR_OCCURRED; |
| 428 | } |
| 429 | PyErr_SetString(PyExc_KeyError, |
| 430 | "invalid signal dict"); |
| 431 | return DEC_INVALID_SIGNALS; |
| 432 | } |
| 433 | |
| 434 | x = PyObject_IsTrue(b); |
| 435 | if (x < 0) { |
| 436 | return DEC_ERR_OCCURRED; |
| 437 | } |
| 438 | if (x == 1) { |
| 439 | flags |= cm->flag; |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | return flags; |
| 444 | } |
| 445 | |
| 446 | #ifdef EXTRA_FUNCTIONALITY |
| 447 | static uint32_t |
| 448 | long_as_flags(PyObject *v) |
| 449 | { |
| 450 | long x; |
| 451 | |
| 452 | x = PyLong_AsLong(v); |
| 453 | if (x == -1 && PyErr_Occurred()) { |
| 454 | return DEC_ERR_OCCURRED; |
| 455 | } |
| 456 | if (x < 0 || x > (long)MPD_Max_status) { |
| 457 | PyErr_SetString(PyExc_TypeError, invalid_flags_err); |
| 458 | return DEC_INVALID_SIGNALS; |
| 459 | } |
| 460 | |
| 461 | return x; |
| 462 | } |
| 463 | #endif |
| 464 | |
| 465 | static int |
| 466 | dec_addstatus(PyObject *context, uint32_t status) |
| 467 | { |
| 468 | mpd_context_t *ctx = CTX(context); |
| 469 | |
| 470 | ctx->status |= status; |
Stefan Krah | fe17b2b | 2012-03-25 18:59:21 +0200 | [diff] [blame^] | 471 | if (status & (ctx->traps|MPD_Malloc_error)) { |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 472 | PyObject *ex, *siglist; |
| 473 | |
Stefan Krah | fe17b2b | 2012-03-25 18:59:21 +0200 | [diff] [blame^] | 474 | if (status & MPD_Malloc_error) { |
| 475 | PyErr_NoMemory(); |
| 476 | return 1; |
| 477 | } |
| 478 | |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 479 | ex = flags_as_exception(ctx->traps&status); |
| 480 | if (ex == NULL) { |
| 481 | return 1; /* GCOV_NOT_REACHED */ |
| 482 | } |
| 483 | siglist = flags_as_list(ctx->traps&status); |
| 484 | if (siglist == NULL) { |
| 485 | return 1; |
| 486 | } |
| 487 | |
| 488 | PyErr_SetObject(ex, siglist); |
| 489 | Py_DECREF(siglist); |
| 490 | return 1; |
| 491 | } |
| 492 | return 0; |
| 493 | } |
| 494 | |
| 495 | |
| 496 | /******************************************************************************/ |
| 497 | /* SignalDict Object */ |
| 498 | /******************************************************************************/ |
| 499 | |
| 500 | /* The SignalDict is a MutableMapping that provides access to the |
| 501 | mpd_context_t flags, which reside in the context object. When a |
| 502 | new context is created, context.traps and context.flags are |
| 503 | initialized to new SignalDicts. Once a SignalDict is tied to |
| 504 | a context, it cannot be deleted. */ |
| 505 | |
| 506 | static int |
| 507 | signaldict_init(PyObject *self, PyObject *args UNUSED, PyObject *kwds UNUSED) |
| 508 | { |
| 509 | SdFlagAddr(self) = NULL; |
| 510 | return 0; |
| 511 | } |
| 512 | |
| 513 | static Py_ssize_t |
| 514 | signaldict_len(PyObject *self UNUSED) |
| 515 | { |
| 516 | return SIGNAL_MAP_LEN; |
| 517 | } |
| 518 | |
| 519 | static PyObject *SignalTuple; |
| 520 | static PyObject * |
| 521 | signaldict_iter(PyObject *self UNUSED) |
| 522 | { |
| 523 | return PyTuple_Type.tp_iter(SignalTuple); |
| 524 | } |
| 525 | |
| 526 | static PyObject * |
| 527 | signaldict_getitem(PyObject *self, PyObject *key) |
| 528 | { |
| 529 | uint32_t flag; |
| 530 | |
| 531 | flag = exception_as_flag(key); |
| 532 | if (flag & DEC_ERRORS) { |
| 533 | return NULL; |
| 534 | } |
| 535 | |
| 536 | return SdFlags(self)&flag ? incr_true() : incr_false(); |
| 537 | } |
| 538 | |
| 539 | static int |
| 540 | signaldict_setitem(PyObject *self, PyObject *key, PyObject *value) |
| 541 | { |
| 542 | uint32_t flag; |
| 543 | int x; |
| 544 | |
| 545 | if (value == NULL) { |
| 546 | return value_error_int("signal keys cannot be deleted"); |
| 547 | } |
| 548 | |
| 549 | flag = exception_as_flag(key); |
| 550 | if (flag & DEC_ERRORS) { |
| 551 | return -1; |
| 552 | } |
| 553 | |
| 554 | x = PyObject_IsTrue(value); |
| 555 | if (x < 0) { |
| 556 | return -1; |
| 557 | } |
| 558 | |
| 559 | if (x == 1) { |
| 560 | SdFlags(self) |= flag; |
| 561 | } |
| 562 | else { |
| 563 | SdFlags(self) &= ~flag; |
| 564 | } |
| 565 | |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | static PyObject * |
| 570 | signaldict_repr(PyObject *self) |
| 571 | { |
| 572 | DecCondMap *cm; |
| 573 | const char *n[SIGNAL_MAP_LEN]; /* name */ |
| 574 | const char *b[SIGNAL_MAP_LEN]; /* bool */ |
| 575 | int i; |
| 576 | |
| 577 | assert(SIGNAL_MAP_LEN == 9); |
| 578 | |
| 579 | for (cm=signal_map, i=0; cm->name != NULL; cm++, i++) { |
| 580 | n[i] = cm->fqname; |
| 581 | b[i] = SdFlags(self)&cm->flag ? "True" : "False"; |
| 582 | } |
| 583 | return PyUnicode_FromFormat( |
| 584 | "{<class '%s'>:%s, <class '%s'>:%s, <class '%s'>:%s, " |
| 585 | "<class '%s'>:%s, <class '%s'>:%s, <class '%s'>:%s, " |
| 586 | "<class '%s'>:%s, <class '%s'>:%s, <class '%s'>:%s}", |
| 587 | n[0], b[0], n[1], b[1], n[2], b[2], |
| 588 | n[3], b[3], n[4], b[4], n[5], b[5], |
| 589 | n[6], b[6], n[7], b[7], n[8], b[8]); |
| 590 | } |
| 591 | |
| 592 | static PyObject * |
| 593 | signaldict_richcompare(PyObject *v, PyObject *w, int op) |
| 594 | { |
| 595 | PyObject *res = Py_NotImplemented; |
| 596 | |
| 597 | assert(PyDecSignalDict_Check(v)); |
| 598 | |
| 599 | if (op == Py_EQ || op == Py_NE) { |
| 600 | if (PyDecSignalDict_Check(w)) { |
| 601 | res = (SdFlags(v)==SdFlags(w)) ^ (op==Py_NE) ? Py_True : Py_False; |
| 602 | } |
| 603 | else if (PyDict_Check(w)) { |
| 604 | uint32_t flags = dict_as_flags(w); |
| 605 | if (flags & DEC_ERRORS) { |
| 606 | if (flags & DEC_INVALID_SIGNALS) { |
| 607 | /* non-comparable: Py_NotImplemented */ |
| 608 | PyErr_Clear(); |
| 609 | } |
| 610 | else { |
| 611 | return NULL; |
| 612 | } |
| 613 | } |
| 614 | else { |
| 615 | res = (SdFlags(v)==flags) ^ (op==Py_NE) ? Py_True : Py_False; |
| 616 | } |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | Py_INCREF(res); |
| 621 | return res; |
| 622 | } |
| 623 | |
| 624 | static PyObject * |
| 625 | signaldict_copy(PyObject *self) |
| 626 | { |
| 627 | return flags_as_dict(SdFlags(self)); |
| 628 | } |
| 629 | |
| 630 | |
| 631 | static PyMappingMethods signaldict_as_mapping = { |
| 632 | (lenfunc)signaldict_len, /* mp_length */ |
| 633 | (binaryfunc)signaldict_getitem, /* mp_subscript */ |
| 634 | (objobjargproc)signaldict_setitem /* mp_ass_subscript */ |
| 635 | }; |
| 636 | |
| 637 | static PyMethodDef signaldict_methods[] = { |
| 638 | { "copy", (PyCFunction)signaldict_copy, METH_NOARGS, NULL}, |
| 639 | {NULL, NULL} |
| 640 | }; |
| 641 | |
| 642 | |
| 643 | static PyTypeObject PyDecSignalDictMixin_Type = |
| 644 | { |
| 645 | PyVarObject_HEAD_INIT(0, 0) |
| 646 | "decimal.SignalDictMixin", /* tp_name */ |
| 647 | sizeof(PyDecSignalDictObject), /* tp_basicsize */ |
| 648 | 0, /* tp_itemsize */ |
| 649 | 0, /* tp_dealloc */ |
| 650 | 0, /* tp_print */ |
| 651 | (getattrfunc) 0, /* tp_getattr */ |
| 652 | (setattrfunc) 0, /* tp_setattr */ |
| 653 | 0, /* tp_reserved */ |
| 654 | (reprfunc) signaldict_repr, /* tp_repr */ |
| 655 | 0, /* tp_as_number */ |
| 656 | 0, /* tp_as_sequence */ |
| 657 | &signaldict_as_mapping, /* tp_as_mapping */ |
| 658 | PyObject_HashNotImplemented, /* tp_hash */ |
| 659 | 0, /* tp_call */ |
| 660 | (reprfunc) 0, /* tp_str */ |
| 661 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 662 | (setattrofunc) 0, /* tp_setattro */ |
| 663 | (PyBufferProcs *) 0, /* tp_as_buffer */ |
| 664 | Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE| |
| 665 | Py_TPFLAGS_HAVE_GC, /* tp_flags */ |
| 666 | 0, /* tp_doc */ |
| 667 | 0, /* tp_traverse */ |
| 668 | 0, /* tp_clear */ |
| 669 | signaldict_richcompare, /* tp_richcompare */ |
| 670 | 0, /* tp_weaklistoffset */ |
| 671 | (getiterfunc)signaldict_iter, /* tp_iter */ |
| 672 | 0, /* tp_iternext */ |
| 673 | signaldict_methods, /* tp_methods */ |
| 674 | 0, /* tp_members */ |
| 675 | 0, /* tp_getset */ |
| 676 | 0, /* tp_base */ |
| 677 | 0, /* tp_dict */ |
| 678 | 0, /* tp_descr_get */ |
| 679 | 0, /* tp_descr_set */ |
| 680 | 0, /* tp_dictoffset */ |
| 681 | (initproc)signaldict_init, /* tp_init */ |
| 682 | 0, /* tp_alloc */ |
| 683 | PyType_GenericNew, /* tp_new */ |
| 684 | }; |
| 685 | |
| 686 | |
| 687 | /******************************************************************************/ |
| 688 | /* Context Object, Part 1 */ |
| 689 | /******************************************************************************/ |
| 690 | |
| 691 | #define Dec_CONTEXT_GET_SSIZE(mem) \ |
| 692 | static PyObject * \ |
| 693 | context_get##mem(PyObject *self, void *closure UNUSED) \ |
| 694 | { \ |
| 695 | return PyLong_FromSsize_t(mpd_get##mem(CTX(self))); \ |
| 696 | } |
| 697 | |
| 698 | #define Dec_CONTEXT_GET_ULONG(mem) \ |
| 699 | static PyObject * \ |
| 700 | context_get##mem(PyObject *self, void *closure UNUSED) \ |
| 701 | { \ |
| 702 | return PyLong_FromUnsignedLong(mpd_get##mem(CTX(self))); \ |
| 703 | } |
| 704 | |
| 705 | Dec_CONTEXT_GET_SSIZE(prec) |
| 706 | Dec_CONTEXT_GET_SSIZE(emax) |
| 707 | Dec_CONTEXT_GET_SSIZE(emin) |
| 708 | Dec_CONTEXT_GET_SSIZE(round) |
| 709 | Dec_CONTEXT_GET_SSIZE(clamp) |
| 710 | |
| 711 | #ifdef EXTRA_FUNCTIONALITY |
| 712 | Dec_CONTEXT_GET_ULONG(traps) |
| 713 | Dec_CONTEXT_GET_ULONG(status) |
| 714 | #endif |
| 715 | |
| 716 | static PyObject * |
| 717 | context_getcapitals(PyObject *self, void *closure UNUSED) |
| 718 | { |
| 719 | return PyLong_FromLong(CtxCaps(self)); |
| 720 | } |
| 721 | |
| 722 | #ifdef EXTRA_FUNCTIONALITY |
| 723 | static PyObject * |
| 724 | context_getallcr(PyObject *self, void *closure UNUSED) |
| 725 | { |
| 726 | return PyLong_FromLong(mpd_getcr(CTX(self))); |
| 727 | } |
| 728 | #endif |
| 729 | |
| 730 | static PyObject * |
| 731 | context_getetiny(PyObject *self, PyObject *dummy UNUSED) |
| 732 | { |
| 733 | return PyLong_FromSsize_t(mpd_etiny(CTX(self))); |
| 734 | } |
| 735 | |
| 736 | static PyObject * |
| 737 | context_getetop(PyObject *self, PyObject *dummy UNUSED) |
| 738 | { |
| 739 | return PyLong_FromSsize_t(mpd_etop(CTX(self))); |
| 740 | } |
| 741 | |
| 742 | static int |
| 743 | context_setprec(PyObject *self, PyObject *value, void *closure UNUSED) |
| 744 | { |
| 745 | mpd_context_t *ctx; |
| 746 | mpd_ssize_t x; |
| 747 | |
| 748 | x = PyLong_AsSsize_t(value); |
| 749 | if (x == -1 && PyErr_Occurred()) { |
| 750 | return -1; |
| 751 | } |
| 752 | |
| 753 | ctx = CTX(self); |
| 754 | if (!mpd_qsetprec(ctx, x)) { |
| 755 | return value_error_int( |
| 756 | "valid range for prec is [1, MAX_PREC]"); |
| 757 | } |
| 758 | |
| 759 | return 0; |
| 760 | } |
| 761 | |
| 762 | static int |
| 763 | context_setemin(PyObject *self, PyObject *value, void *closure UNUSED) |
| 764 | { |
| 765 | mpd_context_t *ctx; |
| 766 | mpd_ssize_t x; |
| 767 | |
| 768 | x = PyLong_AsSsize_t(value); |
| 769 | if (x == -1 && PyErr_Occurred()) { |
| 770 | return -1; |
| 771 | } |
| 772 | |
| 773 | ctx = CTX(self); |
| 774 | if (!mpd_qsetemin(ctx, x)) { |
| 775 | return value_error_int( |
| 776 | "valid range for Emin is [MIN_EMIN, 0]"); |
| 777 | } |
| 778 | |
| 779 | return 0; |
| 780 | } |
| 781 | |
| 782 | static int |
| 783 | context_setemax(PyObject *self, PyObject *value, void *closure UNUSED) |
| 784 | { |
| 785 | mpd_context_t *ctx; |
| 786 | mpd_ssize_t x; |
| 787 | |
| 788 | x = PyLong_AsSsize_t(value); |
| 789 | if (x == -1 && PyErr_Occurred()) { |
| 790 | return -1; |
| 791 | } |
| 792 | |
| 793 | ctx = CTX(self); |
| 794 | if (!mpd_qsetemax(ctx, x)) { |
| 795 | return value_error_int( |
| 796 | "valid range for Emax is [0, MAX_EMAX]"); |
| 797 | } |
| 798 | |
| 799 | return 0; |
| 800 | } |
| 801 | |
| 802 | #ifdef CONFIG_32 |
| 803 | static PyObject * |
| 804 | context_unsafe_setprec(PyObject *self, PyObject *value) |
| 805 | { |
| 806 | mpd_context_t *ctx = CTX(self); |
| 807 | mpd_ssize_t x; |
| 808 | |
| 809 | x = PyLong_AsSsize_t(value); |
| 810 | if (x == -1 && PyErr_Occurred()) { |
| 811 | return NULL; |
| 812 | } |
| 813 | |
| 814 | if (x < 1 || x > 1070000000L) { |
| 815 | return value_error_ptr( |
| 816 | "valid range for unsafe prec is [1, 1070000000]"); |
| 817 | } |
| 818 | |
| 819 | ctx->prec = x; |
| 820 | Py_RETURN_NONE; |
| 821 | } |
| 822 | |
| 823 | static PyObject * |
| 824 | context_unsafe_setemin(PyObject *self, PyObject *value) |
| 825 | { |
| 826 | mpd_context_t *ctx = CTX(self); |
| 827 | mpd_ssize_t x; |
| 828 | |
| 829 | x = PyLong_AsSsize_t(value); |
| 830 | if (x == -1 && PyErr_Occurred()) { |
| 831 | return NULL; |
| 832 | } |
| 833 | |
| 834 | if (x < -1070000000L || x > 0) { |
| 835 | return value_error_ptr( |
| 836 | "valid range for unsafe emin is [-1070000000, 0]"); |
| 837 | } |
| 838 | |
| 839 | ctx->emin = x; |
| 840 | Py_RETURN_NONE; |
| 841 | } |
| 842 | |
| 843 | static PyObject * |
| 844 | context_unsafe_setemax(PyObject *self, PyObject *value) |
| 845 | { |
| 846 | mpd_context_t *ctx = CTX(self); |
| 847 | mpd_ssize_t x; |
| 848 | |
| 849 | x = PyLong_AsSsize_t(value); |
| 850 | if (x == -1 && PyErr_Occurred()) { |
| 851 | return NULL; |
| 852 | } |
| 853 | |
| 854 | if (x < 0 || x > 1070000000L) { |
| 855 | return value_error_ptr( |
| 856 | "valid range for unsafe emax is [0, 1070000000]"); |
| 857 | } |
| 858 | |
| 859 | ctx->emax = x; |
| 860 | Py_RETURN_NONE; |
| 861 | } |
| 862 | #endif |
| 863 | |
| 864 | static int |
| 865 | context_setround(PyObject *self, PyObject *value, void *closure UNUSED) |
| 866 | { |
| 867 | mpd_context_t *ctx; |
| 868 | mpd_ssize_t x; |
| 869 | |
| 870 | x = PyLong_AsSsize_t(value); |
| 871 | if (x == -1 && PyErr_Occurred()) { |
| 872 | return -1; |
| 873 | } |
| 874 | BOUNDS_CHECK(x, INT_MIN, INT_MAX); |
| 875 | |
| 876 | ctx = CTX(self); |
| 877 | if (!mpd_qsetround(ctx, (int)x)) { |
| 878 | return type_error_int(invalid_rounding_err); |
| 879 | } |
| 880 | |
| 881 | return 0; |
| 882 | } |
| 883 | |
| 884 | static int |
| 885 | context_setcapitals(PyObject *self, PyObject *value, void *closure UNUSED) |
| 886 | { |
| 887 | mpd_ssize_t x; |
| 888 | |
| 889 | x = PyLong_AsSsize_t(value); |
| 890 | if (x == -1 && PyErr_Occurred()) { |
| 891 | return -1; |
| 892 | } |
| 893 | |
| 894 | if (x != 0 && x != 1) { |
| 895 | return value_error_int( |
| 896 | "valid values for capitals are 0 or 1"); |
| 897 | } |
| 898 | CtxCaps(self) = (int)x; |
| 899 | |
| 900 | return 0; |
| 901 | } |
| 902 | |
| 903 | #ifdef EXTRA_FUNCTIONALITY |
| 904 | static int |
| 905 | context_settraps(PyObject *self, PyObject *value, void *closure UNUSED) |
| 906 | { |
| 907 | mpd_context_t *ctx; |
| 908 | uint32_t flags; |
| 909 | |
| 910 | flags = long_as_flags(value); |
| 911 | if (flags & DEC_ERRORS) { |
| 912 | return -1; |
| 913 | } |
| 914 | |
| 915 | ctx = CTX(self); |
| 916 | if (!mpd_qsettraps(ctx, flags)) { |
| 917 | INTERNAL_ERROR_INT("context_settraps"); |
| 918 | } |
| 919 | |
| 920 | return 0; |
| 921 | } |
| 922 | #endif |
| 923 | |
| 924 | static int |
| 925 | context_settraps_list(PyObject *self, PyObject *value) |
| 926 | { |
| 927 | mpd_context_t *ctx; |
| 928 | uint32_t flags; |
| 929 | |
| 930 | flags = list_as_flags(value); |
| 931 | if (flags & DEC_ERRORS) { |
| 932 | return -1; |
| 933 | } |
| 934 | |
| 935 | ctx = CTX(self); |
| 936 | if (!mpd_qsettraps(ctx, flags)) { |
| 937 | INTERNAL_ERROR_INT("context_settraps_list"); |
| 938 | } |
| 939 | |
| 940 | return 0; |
| 941 | } |
| 942 | |
| 943 | static int |
| 944 | context_settraps_dict(PyObject *self, PyObject *value) |
| 945 | { |
| 946 | mpd_context_t *ctx; |
| 947 | uint32_t flags; |
| 948 | |
| 949 | if (PyDecSignalDict_Check(value)) { |
| 950 | flags = SdFlags(value); |
| 951 | } |
| 952 | else { |
| 953 | flags = dict_as_flags(value); |
| 954 | if (flags & DEC_ERRORS) { |
| 955 | return -1; |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | ctx = CTX(self); |
| 960 | if (!mpd_qsettraps(ctx, flags)) { |
| 961 | INTERNAL_ERROR_INT("context_settraps_dict"); |
| 962 | } |
| 963 | |
| 964 | return 0; |
| 965 | } |
| 966 | |
| 967 | #ifdef EXTRA_FUNCTIONALITY |
| 968 | static int |
| 969 | context_setstatus(PyObject *self, PyObject *value, void *closure UNUSED) |
| 970 | { |
| 971 | mpd_context_t *ctx; |
| 972 | uint32_t flags; |
| 973 | |
| 974 | flags = long_as_flags(value); |
| 975 | if (flags & DEC_ERRORS) { |
| 976 | return -1; |
| 977 | } |
| 978 | |
| 979 | ctx = CTX(self); |
| 980 | if (!mpd_qsetstatus(ctx, flags)) { |
| 981 | INTERNAL_ERROR_INT("context_setstatus"); |
| 982 | } |
| 983 | |
| 984 | return 0; |
| 985 | } |
| 986 | #endif |
| 987 | |
| 988 | static int |
| 989 | context_setstatus_list(PyObject *self, PyObject *value) |
| 990 | { |
| 991 | mpd_context_t *ctx; |
| 992 | uint32_t flags; |
| 993 | |
| 994 | flags = list_as_flags(value); |
| 995 | if (flags & DEC_ERRORS) { |
| 996 | return -1; |
| 997 | } |
| 998 | |
| 999 | ctx = CTX(self); |
| 1000 | if (!mpd_qsetstatus(ctx, flags)) { |
| 1001 | INTERNAL_ERROR_INT("context_setstatus_list"); |
| 1002 | } |
| 1003 | |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | static int |
| 1008 | context_setstatus_dict(PyObject *self, PyObject *value) |
| 1009 | { |
| 1010 | mpd_context_t *ctx; |
| 1011 | uint32_t flags; |
| 1012 | |
| 1013 | if (PyDecSignalDict_Check(value)) { |
| 1014 | flags = SdFlags(value); |
| 1015 | } |
| 1016 | else { |
| 1017 | flags = dict_as_flags(value); |
| 1018 | if (flags & DEC_ERRORS) { |
| 1019 | return -1; |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | ctx = CTX(self); |
| 1024 | if (!mpd_qsetstatus(ctx, flags)) { |
| 1025 | INTERNAL_ERROR_INT("context_setstatus_dict"); |
| 1026 | } |
| 1027 | |
| 1028 | return 0; |
| 1029 | } |
| 1030 | |
| 1031 | static int |
| 1032 | context_setclamp(PyObject *self, PyObject *value, void *closure UNUSED) |
| 1033 | { |
| 1034 | mpd_context_t *ctx; |
| 1035 | mpd_ssize_t x; |
| 1036 | |
| 1037 | x = PyLong_AsSsize_t(value); |
| 1038 | if (x == -1 && PyErr_Occurred()) { |
| 1039 | return -1; |
| 1040 | } |
| 1041 | BOUNDS_CHECK(x, INT_MIN, INT_MAX); |
| 1042 | |
| 1043 | ctx = CTX(self); |
| 1044 | if (!mpd_qsetclamp(ctx, (int)x)) { |
| 1045 | return value_error_int("valid values for clamp are 0 or 1"); |
| 1046 | } |
| 1047 | |
| 1048 | return 0; |
| 1049 | } |
| 1050 | |
| 1051 | #ifdef EXTRA_FUNCTIONALITY |
| 1052 | static int |
| 1053 | context_setallcr(PyObject *self, PyObject *value, void *closure UNUSED) |
| 1054 | { |
| 1055 | mpd_context_t *ctx; |
| 1056 | mpd_ssize_t x; |
| 1057 | |
| 1058 | x = PyLong_AsSsize_t(value); |
| 1059 | if (x == -1 && PyErr_Occurred()) { |
| 1060 | return -1; |
| 1061 | } |
| 1062 | BOUNDS_CHECK(x, INT_MIN, INT_MAX); |
| 1063 | |
| 1064 | ctx = CTX(self); |
| 1065 | if (!mpd_qsetcr(ctx, (int)x)) { |
| 1066 | return value_error_int("valid values for _allcr are 0 or 1"); |
| 1067 | } |
| 1068 | |
| 1069 | return 0; |
| 1070 | } |
| 1071 | #endif |
| 1072 | |
| 1073 | static PyObject * |
| 1074 | context_getattr(PyObject *self, PyObject *name) |
| 1075 | { |
| 1076 | PyObject *retval; |
| 1077 | |
| 1078 | if (PyUnicode_Check(name)) { |
| 1079 | if (PyUnicode_CompareWithASCIIString(name, "traps") == 0) { |
| 1080 | retval = ((PyDecContextObject *)self)->traps; |
| 1081 | Py_INCREF(retval); |
| 1082 | return retval; |
| 1083 | } |
| 1084 | if (PyUnicode_CompareWithASCIIString(name, "flags") == 0) { |
| 1085 | retval = ((PyDecContextObject *)self)->flags; |
| 1086 | Py_INCREF(retval); |
| 1087 | return retval; |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | return PyObject_GenericGetAttr(self, name); |
| 1092 | } |
| 1093 | |
| 1094 | static int |
| 1095 | context_setattr(PyObject *self, PyObject *name, PyObject *value) |
| 1096 | { |
| 1097 | if (value == NULL) { |
| 1098 | PyErr_SetString(PyExc_AttributeError, |
| 1099 | "context attributes cannot be deleted"); |
| 1100 | return -1; |
| 1101 | } |
| 1102 | |
| 1103 | if (PyUnicode_Check(name)) { |
| 1104 | if (PyUnicode_CompareWithASCIIString(name, "traps") == 0) { |
| 1105 | return context_settraps_dict(self, value); |
| 1106 | } |
| 1107 | if (PyUnicode_CompareWithASCIIString(name, "flags") == 0) { |
| 1108 | return context_setstatus_dict(self, value); |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | return PyObject_GenericSetAttr(self, name, value); |
| 1113 | } |
| 1114 | |
| 1115 | static PyObject * |
| 1116 | context_clear_traps(PyObject *self, PyObject *dummy UNUSED) |
| 1117 | { |
| 1118 | CTX(self)->traps = 0; |
| 1119 | Py_RETURN_NONE; |
| 1120 | } |
| 1121 | |
| 1122 | static PyObject * |
| 1123 | context_clear_flags(PyObject *self, PyObject *dummy UNUSED) |
| 1124 | { |
| 1125 | CTX(self)->status = 0; |
| 1126 | Py_RETURN_NONE; |
| 1127 | } |
| 1128 | |
| 1129 | #define DEC_DFLT_EMAX 999999 |
| 1130 | #define DEC_DFLT_EMIN -999999 |
| 1131 | |
| 1132 | static mpd_context_t dflt_ctx = { |
| 1133 | 28, DEC_DFLT_EMAX, DEC_DFLT_EMIN, |
| 1134 | MPD_IEEE_Invalid_operation|MPD_Division_by_zero|MPD_Overflow, |
| 1135 | 0, 0, MPD_ROUND_HALF_EVEN, 0, 1 |
| 1136 | }; |
| 1137 | |
| 1138 | static PyObject * |
| 1139 | context_new(PyTypeObject *type, PyObject *args UNUSED, PyObject *kwds UNUSED) |
| 1140 | { |
| 1141 | PyDecContextObject *self = NULL; |
| 1142 | mpd_context_t *ctx; |
| 1143 | |
| 1144 | if (type == &PyDecContext_Type) { |
| 1145 | self = PyObject_New(PyDecContextObject, &PyDecContext_Type); |
| 1146 | } |
| 1147 | else { |
| 1148 | self = (PyDecContextObject *)type->tp_alloc(type, 0); |
| 1149 | } |
| 1150 | |
| 1151 | if (self == NULL) { |
| 1152 | return NULL; |
| 1153 | } |
| 1154 | |
| 1155 | self->traps = PyObject_CallObject((PyObject *)PyDecSignalDict_Type, NULL); |
| 1156 | if (self->traps == NULL) { |
| 1157 | self->flags = NULL; |
| 1158 | Py_DECREF(self); |
| 1159 | return NULL; |
| 1160 | } |
| 1161 | self->flags = PyObject_CallObject((PyObject *)PyDecSignalDict_Type, NULL); |
| 1162 | if (self->flags == NULL) { |
| 1163 | Py_DECREF(self); |
| 1164 | return NULL; |
| 1165 | } |
| 1166 | |
| 1167 | ctx = CTX(self); |
| 1168 | |
| 1169 | if (default_context_template) { |
| 1170 | *ctx = *CTX(default_context_template); |
| 1171 | } |
| 1172 | else { |
| 1173 | *ctx = dflt_ctx; |
| 1174 | } |
| 1175 | |
| 1176 | SdFlagAddr(self->traps) = &ctx->traps; |
| 1177 | SdFlagAddr(self->flags) = &ctx->status; |
| 1178 | |
| 1179 | CtxCaps(self) = 1; |
| 1180 | |
| 1181 | return (PyObject *)self; |
| 1182 | } |
| 1183 | |
| 1184 | static void |
| 1185 | context_dealloc(PyDecContextObject *self) |
| 1186 | { |
| 1187 | Py_XDECREF(self->traps); |
| 1188 | Py_XDECREF(self->flags); |
| 1189 | Py_TYPE(self)->tp_free(self); |
| 1190 | } |
| 1191 | |
| 1192 | static int |
| 1193 | getround(PyObject *v) |
| 1194 | { |
| 1195 | const char *s; |
| 1196 | long x; |
| 1197 | int i; |
| 1198 | |
| 1199 | if (PyLong_Check(v)) { |
| 1200 | x = PyLong_AsLong(v); |
| 1201 | if (x == -1 && PyErr_Occurred()) { |
| 1202 | return -1; |
| 1203 | } |
| 1204 | BOUNDS_CHECK(x, 0, INT_MAX); |
| 1205 | return (int)x; |
| 1206 | } |
| 1207 | else if (PyUnicode_Check(v)) { |
| 1208 | for (i = 0; i < MPD_ROUND_GUARD; i++) { |
| 1209 | s = mpd_round_string[i]; |
| 1210 | if (PyUnicode_CompareWithASCIIString(v, s) == 0) { |
| 1211 | return i; |
| 1212 | } |
| 1213 | } |
| 1214 | } |
| 1215 | |
| 1216 | return type_error_int("invalid rounding mode"); |
| 1217 | } |
| 1218 | |
| 1219 | static int |
| 1220 | context_init(PyObject *self, PyObject *args, PyObject *kwds) |
| 1221 | { |
| 1222 | static char *kwlist[] = { |
| 1223 | "prec", "rounding", "Emin", "Emax", "capitals", "clamp", |
| 1224 | "flags", "traps", NULL |
| 1225 | }; |
| 1226 | PyObject *rounding = NULL; |
| 1227 | PyObject *traps = NULL; |
| 1228 | PyObject *status = NULL; |
| 1229 | mpd_context_t *ctx, t; |
| 1230 | int capitals = 1; |
| 1231 | int ret; |
| 1232 | |
| 1233 | assert(PyTuple_Check(args)); |
| 1234 | ctx = CTX(self); |
| 1235 | |
| 1236 | t = *ctx; |
| 1237 | if (!PyArg_ParseTupleAndKeywords( |
| 1238 | args, kwds, |
| 1239 | "|nOnniiOO", kwlist, |
| 1240 | &t.prec, &rounding, &t.emin, &t.emax, &capitals, &t.clamp, |
| 1241 | &status, &traps |
| 1242 | )) { |
| 1243 | return -1; |
| 1244 | } |
| 1245 | if (rounding != NULL) { |
| 1246 | t.round = getround(rounding); |
| 1247 | if (t.round < 0) { |
| 1248 | return -1; |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | if (!mpd_qsetprec(ctx, t.prec) || |
| 1253 | !mpd_qsetemin(ctx, t.emin) || |
| 1254 | !mpd_qsetemax(ctx, t.emax) || |
| 1255 | !mpd_qsetclamp(ctx, t.clamp)) { |
| 1256 | return value_error_int("invalid context"); |
| 1257 | } |
| 1258 | if (!mpd_qsetround(ctx, t.round) || |
| 1259 | !mpd_qsettraps(ctx, t.traps) || |
| 1260 | !mpd_qsetstatus(ctx, t.status)) { |
| 1261 | return type_error_int("invalid context"); |
| 1262 | } |
| 1263 | |
| 1264 | if (capitals != 0 && capitals != 1) { |
| 1265 | return value_error_int("invalid context"); |
| 1266 | } |
| 1267 | CtxCaps(self) = capitals; |
| 1268 | |
| 1269 | if (traps != NULL) { |
| 1270 | if (PyList_Check(traps)) { |
| 1271 | ret = context_settraps_list(self, traps); |
| 1272 | } |
| 1273 | #ifdef EXTRA_FUNCTIONALITY |
| 1274 | else if (PyLong_Check(traps)) { |
| 1275 | ret = context_settraps(self, traps, NULL); |
| 1276 | } |
| 1277 | #endif |
| 1278 | else { |
| 1279 | ret = context_settraps_dict(self, traps); |
| 1280 | } |
| 1281 | if (ret < 0) { |
| 1282 | return ret; |
| 1283 | } |
| 1284 | } |
| 1285 | if (status != NULL) { |
| 1286 | if (PyList_Check(status)) { |
| 1287 | ret = context_setstatus_list(self, status); |
| 1288 | } |
| 1289 | #ifdef EXTRA_FUNCTIONALITY |
| 1290 | else if (PyLong_Check(status)) { |
| 1291 | ret = context_setstatus(self, status, NULL); |
| 1292 | } |
| 1293 | #endif |
| 1294 | else { |
| 1295 | ret = context_setstatus_dict(self, status); |
| 1296 | } |
| 1297 | if (ret < 0) { |
| 1298 | return ret; |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | return 0; |
| 1303 | } |
| 1304 | |
| 1305 | static PyObject * |
| 1306 | context_repr(PyDecContextObject *self) |
| 1307 | { |
| 1308 | mpd_context_t *ctx; |
| 1309 | char flags[MPD_MAX_SIGNAL_LIST]; |
| 1310 | char traps[MPD_MAX_SIGNAL_LIST]; |
| 1311 | int n, mem; |
| 1312 | |
| 1313 | assert(PyDecContext_Check(self)); |
| 1314 | ctx = CTX(self); |
| 1315 | |
| 1316 | mem = MPD_MAX_SIGNAL_LIST; |
| 1317 | n = mpd_lsnprint_signals(flags, mem, ctx->status, dec_signal_string); |
| 1318 | if (n < 0 || n >= mem) { |
| 1319 | INTERNAL_ERROR_PTR("context_repr"); |
| 1320 | } |
| 1321 | |
| 1322 | n = mpd_lsnprint_signals(traps, mem, ctx->traps, dec_signal_string); |
| 1323 | if (n < 0 || n >= mem) { |
| 1324 | INTERNAL_ERROR_PTR("context_repr"); |
| 1325 | } |
| 1326 | |
| 1327 | return PyUnicode_FromFormat( |
| 1328 | "Context(prec=%zd, rounding=%s, Emin=%zd, Emax=%zd, " |
| 1329 | "capitals=%d, clamp=%d, flags=%s, traps=%s)", |
| 1330 | ctx->prec, mpd_round_string[ctx->round], ctx->emin, ctx->emax, |
| 1331 | self->capitals, ctx->clamp, flags, traps); |
| 1332 | } |
| 1333 | |
| 1334 | static void |
| 1335 | init_basic_context(PyObject *v) |
| 1336 | { |
| 1337 | mpd_context_t ctx = dflt_ctx; |
| 1338 | |
| 1339 | ctx.prec = 9; |
| 1340 | ctx.traps |= (MPD_Underflow|MPD_Clamped); |
| 1341 | ctx.round = MPD_ROUND_HALF_UP; |
| 1342 | |
| 1343 | *CTX(v) = ctx; |
| 1344 | CtxCaps(v) = 1; |
| 1345 | } |
| 1346 | |
| 1347 | static void |
| 1348 | init_extended_context(PyObject *v) |
| 1349 | { |
| 1350 | mpd_context_t ctx = dflt_ctx; |
| 1351 | |
| 1352 | ctx.prec = 9; |
| 1353 | ctx.traps = 0; |
| 1354 | |
| 1355 | *CTX(v) = ctx; |
| 1356 | CtxCaps(v) = 1; |
| 1357 | } |
| 1358 | |
| 1359 | #ifdef EXTRA_FUNCTIONALITY |
| 1360 | /* Factory function for creating IEEE interchange format contexts */ |
| 1361 | static PyObject * |
| 1362 | ieee_context(PyObject *dummy UNUSED, PyObject *v) |
| 1363 | { |
| 1364 | PyObject *context; |
| 1365 | mpd_ssize_t bits; |
| 1366 | mpd_context_t ctx; |
| 1367 | |
| 1368 | bits = PyLong_AsSsize_t(v); |
| 1369 | if (bits == -1 && PyErr_Occurred()) { |
| 1370 | return NULL; |
| 1371 | } |
| 1372 | if (bits <= 0 || bits > INT_MAX) { |
| 1373 | goto error; |
| 1374 | } |
| 1375 | if (mpd_ieee_context(&ctx, (int)bits) < 0) { |
| 1376 | goto error; |
| 1377 | } |
| 1378 | |
| 1379 | context = PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL); |
| 1380 | if (context == NULL) { |
| 1381 | return NULL; |
| 1382 | } |
| 1383 | *CTX(context) = ctx; |
| 1384 | |
| 1385 | return context; |
| 1386 | |
| 1387 | error: |
| 1388 | PyErr_Format(PyExc_ValueError, |
| 1389 | "argument must be a multiple of 32, with a maximum of %d", |
| 1390 | MPD_IEEE_CONTEXT_MAX_BITS); |
| 1391 | |
| 1392 | return NULL; |
| 1393 | } |
| 1394 | #endif |
| 1395 | |
| 1396 | static PyObject * |
| 1397 | context_copy(PyObject *self) |
| 1398 | { |
| 1399 | PyObject *copy; |
| 1400 | |
| 1401 | copy = PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL); |
| 1402 | if (copy == NULL) { |
| 1403 | return NULL; |
| 1404 | } |
| 1405 | |
| 1406 | *CTX(copy) = *CTX(self); |
| 1407 | CTX(copy)->newtrap = 0; |
| 1408 | CtxCaps(copy) = CtxCaps(self); |
| 1409 | |
| 1410 | return copy; |
| 1411 | } |
| 1412 | |
| 1413 | static PyObject * |
| 1414 | context_reduce(PyObject *self, PyObject *args UNUSED) |
| 1415 | { |
| 1416 | PyObject *flags; |
| 1417 | PyObject *traps; |
| 1418 | PyObject *ret; |
| 1419 | mpd_context_t *ctx; |
| 1420 | |
| 1421 | ctx = CTX(self); |
| 1422 | |
| 1423 | flags = signals_as_list(ctx->status); |
| 1424 | if (flags == NULL) { |
| 1425 | return NULL; |
| 1426 | } |
| 1427 | traps = signals_as_list(ctx->traps); |
| 1428 | if (traps == NULL) { |
| 1429 | Py_DECREF(flags); |
| 1430 | return NULL; |
| 1431 | } |
| 1432 | |
| 1433 | ret = Py_BuildValue( |
| 1434 | "O(nsnniiOO)", |
| 1435 | Py_TYPE(self), |
| 1436 | ctx->prec, mpd_round_string[ctx->round], ctx->emin, ctx->emax, |
| 1437 | CtxCaps(self), ctx->clamp, flags, traps |
| 1438 | ); |
| 1439 | |
| 1440 | Py_DECREF(flags); |
| 1441 | Py_DECREF(traps); |
| 1442 | return ret; |
| 1443 | } |
| 1444 | |
| 1445 | |
| 1446 | static PyGetSetDef context_getsets [] = |
| 1447 | { |
| 1448 | { "prec", (getter)context_getprec, (setter)context_setprec, NULL, NULL}, |
| 1449 | { "Emax", (getter)context_getemax, (setter)context_setemax, NULL, NULL}, |
| 1450 | { "Emin", (getter)context_getemin, (setter)context_setemin, NULL, NULL}, |
| 1451 | { "rounding", (getter)context_getround, (setter)context_setround, NULL, NULL}, |
| 1452 | { "capitals", (getter)context_getcapitals, (setter)context_setcapitals, NULL, NULL}, |
| 1453 | { "clamp", (getter)context_getclamp, (setter)context_setclamp, NULL, NULL}, |
| 1454 | #ifdef EXTRA_FUNCTIONALITY |
| 1455 | { "_allcr", (getter)context_getallcr, (setter)context_setallcr, NULL, NULL}, |
| 1456 | { "_traps", (getter)context_gettraps, (setter)context_settraps, NULL, NULL}, |
| 1457 | { "_flags", (getter)context_getstatus, (setter)context_setstatus, NULL, NULL}, |
| 1458 | #endif |
| 1459 | {NULL} |
| 1460 | }; |
| 1461 | |
| 1462 | |
| 1463 | #define CONTEXT_CHECK(obj) \ |
| 1464 | if (!PyDecContext_Check(obj)) { \ |
| 1465 | PyErr_SetString(PyExc_TypeError, \ |
| 1466 | "argument must be a context"); \ |
| 1467 | return NULL; \ |
| 1468 | } |
| 1469 | |
| 1470 | #define CONTEXT_CHECK_VA(obj) \ |
| 1471 | if (!PyDecContext_Check(obj)) { \ |
| 1472 | PyErr_SetString(PyExc_TypeError, \ |
| 1473 | "optional argument must be a context"); \ |
| 1474 | return NULL; \ |
| 1475 | } |
| 1476 | |
| 1477 | |
| 1478 | /******************************************************************************/ |
| 1479 | /* Global, thread local and temporary contexts */ |
| 1480 | /******************************************************************************/ |
| 1481 | |
| 1482 | #ifdef WITHOUT_THREADS |
| 1483 | /* Return borrowed reference to the current context. When compiled |
| 1484 | * without threads, this is always the module context. */ |
| 1485 | static int module_context_set = 0; |
| 1486 | static PyObject * |
| 1487 | current_context(void) |
| 1488 | { |
| 1489 | /* In decimal.py, the module context is automatically initialized |
| 1490 | * from the DefaultContext when it is first accessed. This |
| 1491 | * complicates the code and has a speed penalty of 1-2%. */ |
| 1492 | if (module_context_set) { |
| 1493 | return module_context; |
| 1494 | } |
| 1495 | |
| 1496 | *CTX(module_context) = *CTX(default_context_template); |
| 1497 | module_context_set = 1; |
| 1498 | return module_context; |
| 1499 | } |
| 1500 | |
| 1501 | /* ctxobj := borrowed reference to the current context */ |
| 1502 | #define CURRENT_CONTEXT(ctxobj) \ |
| 1503 | ctxobj = current_context() |
| 1504 | |
| 1505 | /* ctx := pointer to the mpd_context_t struct of the current context */ |
| 1506 | #define CURRENT_CONTEXT_ADDR(ctx) \ |
| 1507 | ctx = CTX(current_context()) |
| 1508 | |
| 1509 | /* Return current context, increment reference */ |
| 1510 | static PyObject * |
| 1511 | PyDec_GetCurrentContext(void) |
| 1512 | { |
| 1513 | PyObject *context; |
| 1514 | |
| 1515 | CURRENT_CONTEXT(context); |
| 1516 | |
| 1517 | Py_INCREF(context); |
| 1518 | return context; |
| 1519 | } |
| 1520 | |
| 1521 | /* Set the module context to a new context, decrement old reference */ |
| 1522 | static PyObject * |
| 1523 | PyDec_SetCurrentContext(PyObject *self UNUSED, PyObject *v) |
| 1524 | { |
| 1525 | CONTEXT_CHECK(v); |
| 1526 | |
| 1527 | /* If the new context is one of the templates, make a copy. |
| 1528 | * This is the current behavior of decimal.py. */ |
| 1529 | if (v == default_context_template || |
| 1530 | v == basic_context_template || |
| 1531 | v == extended_context_template) { |
| 1532 | v = context_copy(v); |
| 1533 | if (v == NULL) { |
| 1534 | return NULL; |
| 1535 | } |
| 1536 | } |
| 1537 | else { |
| 1538 | Py_INCREF(v); |
| 1539 | } |
| 1540 | |
| 1541 | Py_XDECREF(module_context); |
| 1542 | module_context = v; |
| 1543 | module_context_set = 1; |
| 1544 | Py_RETURN_NONE; |
| 1545 | } |
| 1546 | #else |
| 1547 | /* |
| 1548 | * Thread local storage currently has a speed penalty of about 16%. |
| 1549 | * All functions that map Python's arithmetic operators to mpdecimal |
| 1550 | * functions have to look up the current context for each and every |
| 1551 | * operation. |
| 1552 | */ |
| 1553 | |
| 1554 | /* Return borrowed reference to thread local context. */ |
| 1555 | static PyObject * |
| 1556 | current_context(void) |
| 1557 | { |
| 1558 | PyObject *dict = NULL; |
| 1559 | PyObject *tl_context = NULL; |
| 1560 | |
| 1561 | dict = PyThreadState_GetDict(); |
| 1562 | if (dict == NULL) { |
| 1563 | PyErr_SetString(PyExc_RuntimeError, |
| 1564 | "cannot get thread state"); |
| 1565 | return NULL; |
| 1566 | } |
| 1567 | |
| 1568 | tl_context = PyDict_GetItemWithError(dict, tls_context_key); |
| 1569 | if (tl_context != NULL) { |
| 1570 | /* We already have a thread local context and |
| 1571 | * return a borrowed reference. */ |
| 1572 | CONTEXT_CHECK(tl_context); |
| 1573 | return tl_context; |
| 1574 | } |
| 1575 | if (PyErr_Occurred()) { |
| 1576 | return NULL; |
| 1577 | } |
| 1578 | |
| 1579 | /* Otherwise, set up a new thread local context. */ |
| 1580 | tl_context = context_copy(default_context_template); |
| 1581 | if (tl_context == NULL) { |
| 1582 | return NULL; |
| 1583 | } |
| 1584 | if (PyDict_SetItem(dict, tls_context_key, tl_context) < 0) { |
| 1585 | Py_DECREF(tl_context); |
| 1586 | return NULL; |
| 1587 | } |
| 1588 | Py_DECREF(tl_context); |
| 1589 | |
| 1590 | /* refcount is 1 */ |
| 1591 | return tl_context; |
| 1592 | } |
| 1593 | |
| 1594 | /* ctxobj := borrowed reference to the current context */ |
| 1595 | #define CURRENT_CONTEXT(ctxobj) \ |
| 1596 | ctxobj = current_context(); \ |
| 1597 | if (ctxobj == NULL) { \ |
Stefan Krah | 7cc5521 | 2012-03-21 20:21:20 +0100 | [diff] [blame] | 1598 | return NULL; \ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 1599 | } |
| 1600 | |
| 1601 | /* ctx := pointer to the mpd_context_t struct of the current context */ |
| 1602 | #define CURRENT_CONTEXT_ADDR(ctx) { \ |
| 1603 | PyObject *_c_t_x_o_b_j = current_context(); \ |
| 1604 | if (_c_t_x_o_b_j == NULL) { \ |
Stefan Krah | 7cc5521 | 2012-03-21 20:21:20 +0100 | [diff] [blame] | 1605 | return NULL; \ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 1606 | } \ |
| 1607 | ctx = CTX(_c_t_x_o_b_j); \ |
| 1608 | } |
| 1609 | |
| 1610 | /* Return current context, increment reference */ |
| 1611 | static PyObject * |
| 1612 | PyDec_GetCurrentContext(void) |
| 1613 | { |
| 1614 | PyObject *context; |
| 1615 | |
| 1616 | context = current_context(); |
| 1617 | if (context == NULL) { |
| 1618 | return NULL; |
| 1619 | } |
| 1620 | |
| 1621 | Py_INCREF(context); |
| 1622 | return context; |
| 1623 | } |
| 1624 | |
| 1625 | /* Set the thread local context to a new context, decrement old reference */ |
| 1626 | static PyObject * |
| 1627 | PyDec_SetCurrentContext(PyObject *self UNUSED, PyObject *v) |
| 1628 | { |
| 1629 | PyObject *dict; |
| 1630 | |
| 1631 | CONTEXT_CHECK(v); |
| 1632 | |
| 1633 | dict = PyThreadState_GetDict(); |
| 1634 | if (dict == NULL) { |
| 1635 | PyErr_SetString(PyExc_RuntimeError, |
| 1636 | "cannot get thread state"); |
| 1637 | return NULL; |
| 1638 | } |
| 1639 | |
| 1640 | /* If the new context is one of the templates, make a copy. |
| 1641 | * This is the current behavior of decimal.py. */ |
| 1642 | if (v == default_context_template || |
| 1643 | v == basic_context_template || |
| 1644 | v == extended_context_template) { |
| 1645 | v = context_copy(v); |
| 1646 | if (v == NULL) { |
| 1647 | return NULL; |
| 1648 | } |
| 1649 | } |
| 1650 | else { |
| 1651 | Py_INCREF(v); |
| 1652 | } |
| 1653 | |
| 1654 | if (PyDict_SetItem(dict, tls_context_key, v) < 0) { |
| 1655 | Py_DECREF(v); |
| 1656 | return NULL; |
| 1657 | } |
| 1658 | |
| 1659 | Py_DECREF(v); |
| 1660 | Py_RETURN_NONE; |
| 1661 | } |
| 1662 | #endif |
| 1663 | |
| 1664 | /* Context manager object for the 'with' statement. The manager |
| 1665 | * owns one reference to the global (outer) context and one |
| 1666 | * to the local (inner) context. */ |
| 1667 | static PyObject * |
| 1668 | ctxmanager_new(PyTypeObject *type UNUSED, PyObject *args) |
| 1669 | { |
| 1670 | PyDecContextManagerObject *self; |
| 1671 | PyObject *local; |
| 1672 | PyObject *global; |
| 1673 | |
| 1674 | CURRENT_CONTEXT(global); |
| 1675 | local = global; |
| 1676 | if (!PyArg_ParseTuple(args, "|O", &local)) { |
| 1677 | return NULL; |
| 1678 | } |
| 1679 | CONTEXT_CHECK_VA(local); |
| 1680 | |
| 1681 | self = PyObject_New(PyDecContextManagerObject, |
| 1682 | &PyDecContextManager_Type); |
| 1683 | if (self == NULL) { |
| 1684 | return NULL; |
| 1685 | } |
| 1686 | |
| 1687 | self->local = context_copy(local); |
| 1688 | if (self->local == NULL) { |
| 1689 | self->global = NULL; |
| 1690 | Py_DECREF(self); |
| 1691 | return NULL; |
| 1692 | } |
| 1693 | self->global = global; |
| 1694 | Py_INCREF(self->global); |
| 1695 | |
| 1696 | return (PyObject *)self; |
| 1697 | } |
| 1698 | |
| 1699 | static void |
| 1700 | ctxmanager_dealloc(PyDecContextManagerObject *self) |
| 1701 | { |
| 1702 | Py_XDECREF(self->local); |
| 1703 | Py_XDECREF(self->global); |
| 1704 | PyObject_Del(self); |
| 1705 | } |
| 1706 | |
| 1707 | static PyObject * |
| 1708 | ctxmanager_set_local(PyDecContextManagerObject *self, PyObject *args UNUSED) |
| 1709 | { |
| 1710 | PyObject *ret; |
| 1711 | |
| 1712 | ret = PyDec_SetCurrentContext(NULL, self->local); |
| 1713 | if (ret == NULL) { |
| 1714 | return NULL; |
| 1715 | } |
| 1716 | Py_DECREF(ret); |
| 1717 | |
| 1718 | Py_INCREF(self->local); |
| 1719 | return self->local; |
| 1720 | } |
| 1721 | |
| 1722 | static PyObject * |
| 1723 | ctxmanager_restore_global(PyDecContextManagerObject *self, |
| 1724 | PyObject *args UNUSED) |
| 1725 | { |
| 1726 | PyObject *ret; |
| 1727 | |
| 1728 | ret = PyDec_SetCurrentContext(NULL, self->global); |
| 1729 | if (ret == NULL) { |
| 1730 | return NULL; |
| 1731 | } |
| 1732 | Py_DECREF(ret); |
| 1733 | |
| 1734 | Py_RETURN_NONE; |
| 1735 | } |
| 1736 | |
| 1737 | |
| 1738 | static PyMethodDef ctxmanager_methods[] = { |
| 1739 | {"__enter__", (PyCFunction)ctxmanager_set_local, METH_NOARGS, NULL}, |
| 1740 | {"__exit__", (PyCFunction)ctxmanager_restore_global, METH_VARARGS, NULL}, |
| 1741 | {NULL, NULL} |
| 1742 | }; |
| 1743 | |
| 1744 | static PyTypeObject PyDecContextManager_Type = |
| 1745 | { |
| 1746 | PyVarObject_HEAD_INIT(NULL, 0) |
| 1747 | "decimal.ContextManager", /* tp_name */ |
| 1748 | sizeof(PyDecContextManagerObject), /* tp_basicsize */ |
| 1749 | 0, /* tp_itemsize */ |
| 1750 | (destructor) ctxmanager_dealloc, /* tp_dealloc */ |
| 1751 | 0, /* tp_print */ |
| 1752 | (getattrfunc) 0, /* tp_getattr */ |
| 1753 | (setattrfunc) 0, /* tp_setattr */ |
| 1754 | 0, /* tp_compare */ |
| 1755 | (reprfunc) 0, /* tp_repr */ |
| 1756 | 0, /* tp_as_number */ |
| 1757 | 0, /* tp_as_sequence */ |
| 1758 | 0, /* tp_as_mapping */ |
| 1759 | 0, /* tp_hash */ |
| 1760 | 0, /* tp_call */ |
| 1761 | 0, /* tp_str */ |
| 1762 | (getattrofunc) PyObject_GenericGetAttr, /* tp_getattro */ |
| 1763 | (setattrofunc) 0, /* tp_setattro */ |
| 1764 | (PyBufferProcs *) 0, /* tp_as_buffer */ |
| 1765 | Py_TPFLAGS_DEFAULT, /* tp_flags */ |
| 1766 | 0, /* tp_doc */ |
| 1767 | 0, /* tp_traverse */ |
| 1768 | 0, /* tp_clear */ |
| 1769 | 0, /* tp_richcompare */ |
| 1770 | 0, /* tp_weaklistoffset */ |
| 1771 | 0, /* tp_iter */ |
| 1772 | 0, /* tp_iternext */ |
| 1773 | ctxmanager_methods, /* tp_methods */ |
| 1774 | }; |
| 1775 | |
| 1776 | |
| 1777 | /******************************************************************************/ |
| 1778 | /* New Decimal Object */ |
| 1779 | /******************************************************************************/ |
| 1780 | |
| 1781 | static PyObject * |
| 1782 | PyDecType_New(PyTypeObject *type) |
| 1783 | { |
| 1784 | PyObject *dec; |
| 1785 | |
| 1786 | if (type == &PyDec_Type) { |
| 1787 | dec = (PyObject *)PyObject_New(PyDecObject, &PyDec_Type); |
| 1788 | } |
| 1789 | else { |
| 1790 | dec = type->tp_alloc(type, 0); |
| 1791 | } |
| 1792 | if (dec == NULL) { |
| 1793 | return NULL; |
| 1794 | } |
| 1795 | |
| 1796 | MPD(dec) = mpd_qnew(); |
| 1797 | if (MPD(dec) == NULL) { |
| 1798 | Py_DECREF(dec); |
| 1799 | PyErr_NoMemory(); |
| 1800 | return NULL; |
| 1801 | } |
| 1802 | |
| 1803 | return dec; |
| 1804 | } |
| 1805 | #define dec_alloc() PyDecType_New(&PyDec_Type) |
| 1806 | |
| 1807 | static void |
| 1808 | dec_dealloc(PyObject *dec) |
| 1809 | { |
| 1810 | if (MPD(dec)) { |
| 1811 | mpd_del(MPD(dec)); |
| 1812 | } |
| 1813 | Py_TYPE(dec)->tp_free(dec); |
| 1814 | } |
| 1815 | |
| 1816 | |
| 1817 | /******************************************************************************/ |
| 1818 | /* Conversions to Decimal */ |
| 1819 | /******************************************************************************/ |
| 1820 | |
| 1821 | Py_LOCAL_INLINE(int) |
| 1822 | is_space(enum PyUnicode_Kind kind, void *data, Py_ssize_t pos) |
| 1823 | { |
| 1824 | Py_UCS4 ch = PyUnicode_READ(kind, data, pos); |
| 1825 | return Py_UNICODE_ISSPACE(ch); |
| 1826 | } |
| 1827 | |
| 1828 | /* Return the ASCII representation of a numeric Unicode string. The numeric |
| 1829 | string may contain ascii characters in the range [1, 127], any Unicode |
| 1830 | space and any unicode digit. If strip_ws is true, leading and trailing |
| 1831 | whitespace is stripped. |
| 1832 | |
| 1833 | Return NULL if malloc fails and an empty string if invalid characters |
| 1834 | are found. */ |
| 1835 | static char * |
| 1836 | numeric_as_ascii(const PyObject *u, int strip_ws) |
| 1837 | { |
| 1838 | enum PyUnicode_Kind kind; |
| 1839 | void *data; |
| 1840 | Py_UCS4 ch; |
| 1841 | char *res, *cp; |
| 1842 | Py_ssize_t j, len; |
| 1843 | int d; |
| 1844 | |
| 1845 | assert(PyUnicode_IS_READY(u)); |
| 1846 | |
| 1847 | kind = PyUnicode_KIND(u); |
| 1848 | data = PyUnicode_DATA(u); |
| 1849 | len = PyUnicode_GET_LENGTH(u); |
| 1850 | |
| 1851 | cp = res = PyMem_Malloc(len+1); |
| 1852 | if (res == NULL) { |
| 1853 | PyErr_NoMemory(); |
| 1854 | return NULL; |
| 1855 | } |
| 1856 | |
| 1857 | j = 0; |
| 1858 | if (strip_ws) { |
| 1859 | while (len > 0 && is_space(kind, data, len-1)) { |
| 1860 | len--; |
| 1861 | } |
| 1862 | while (j < len && is_space(kind, data, j)) { |
| 1863 | j++; |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | for (; j < len; j++) { |
| 1868 | ch = PyUnicode_READ(kind, data, j); |
| 1869 | if (0 < ch && ch <= 127) { |
| 1870 | *cp++ = ch; |
| 1871 | continue; |
| 1872 | } |
| 1873 | if (Py_UNICODE_ISSPACE(ch)) { |
| 1874 | *cp++ = ' '; |
| 1875 | continue; |
| 1876 | } |
| 1877 | d = Py_UNICODE_TODECIMAL(ch); |
| 1878 | if (d < 0) { |
| 1879 | /* empty string triggers ConversionSyntax */ |
| 1880 | *res = '\0'; |
| 1881 | return res; |
| 1882 | } |
| 1883 | *cp++ = '0' + d; |
| 1884 | } |
| 1885 | *cp = '\0'; |
| 1886 | return res; |
| 1887 | } |
| 1888 | |
| 1889 | /* Return a new PyDecObject or a subtype from a C string. Use the context |
| 1890 | during conversion. */ |
| 1891 | static PyObject * |
| 1892 | PyDecType_FromCString(PyTypeObject *type, const char *s, |
| 1893 | PyObject *context) |
| 1894 | { |
| 1895 | PyObject *dec; |
| 1896 | uint32_t status = 0; |
| 1897 | |
| 1898 | dec = PyDecType_New(type); |
| 1899 | if (dec == NULL) { |
| 1900 | return NULL; |
| 1901 | } |
| 1902 | |
| 1903 | mpd_qset_string(MPD(dec), s, CTX(context), &status); |
| 1904 | if (dec_addstatus(context, status)) { |
| 1905 | Py_DECREF(dec); |
| 1906 | return NULL; |
| 1907 | } |
| 1908 | return dec; |
| 1909 | } |
| 1910 | |
| 1911 | /* Return a new PyDecObject or a subtype from a C string. Attempt exact |
| 1912 | conversion. If the operand cannot be converted exactly, set |
| 1913 | InvalidOperation. */ |
| 1914 | static PyObject * |
| 1915 | PyDecType_FromCStringExact(PyTypeObject *type, const char *s, |
| 1916 | PyObject *context) |
| 1917 | { |
| 1918 | PyObject *dec; |
| 1919 | uint32_t status = 0; |
| 1920 | mpd_context_t maxctx; |
| 1921 | |
| 1922 | dec = PyDecType_New(type); |
| 1923 | if (dec == NULL) { |
| 1924 | return NULL; |
| 1925 | } |
| 1926 | |
| 1927 | mpd_maxcontext(&maxctx); |
| 1928 | |
| 1929 | mpd_qset_string(MPD(dec), s, &maxctx, &status); |
| 1930 | if (status & (MPD_Inexact|MPD_Rounded)) { |
| 1931 | /* we want exact results */ |
| 1932 | mpd_seterror(MPD(dec), MPD_Invalid_operation, &status); |
| 1933 | } |
| 1934 | status &= MPD_Errors; |
| 1935 | if (dec_addstatus(context, status)) { |
| 1936 | Py_DECREF(dec); |
| 1937 | return NULL; |
| 1938 | } |
| 1939 | |
| 1940 | return dec; |
| 1941 | } |
| 1942 | |
| 1943 | /* Return a new PyDecObject or a subtype from a PyUnicodeObject. */ |
| 1944 | static PyObject * |
| 1945 | PyDecType_FromUnicode(PyTypeObject *type, const PyObject *u, |
| 1946 | PyObject *context) |
| 1947 | { |
| 1948 | PyObject *dec; |
| 1949 | char *s; |
| 1950 | |
| 1951 | s = numeric_as_ascii(u, 0); |
| 1952 | if (s == NULL) { |
| 1953 | return NULL; |
| 1954 | } |
| 1955 | |
| 1956 | dec = PyDecType_FromCString(type, s, context); |
| 1957 | PyMem_Free(s); |
| 1958 | return dec; |
| 1959 | } |
| 1960 | |
| 1961 | /* Return a new PyDecObject or a subtype from a PyUnicodeObject. Attempt exact |
| 1962 | * conversion. If the conversion is not exact, fail with InvalidOperation. |
| 1963 | * Allow leading and trailing whitespace in the input operand. */ |
| 1964 | static PyObject * |
| 1965 | PyDecType_FromUnicodeExactWS(PyTypeObject *type, const PyObject *u, |
| 1966 | PyObject *context) |
| 1967 | { |
| 1968 | PyObject *dec; |
| 1969 | char *s; |
| 1970 | |
| 1971 | s = numeric_as_ascii(u, 1); |
| 1972 | if (s == NULL) { |
| 1973 | return NULL; |
| 1974 | } |
| 1975 | |
| 1976 | dec = PyDecType_FromCStringExact(type, s, context); |
| 1977 | PyMem_Free(s); |
| 1978 | return dec; |
| 1979 | } |
| 1980 | |
| 1981 | /* Set PyDecObject from triple without any error checking. */ |
| 1982 | Py_LOCAL_INLINE(void) |
| 1983 | _dec_settriple(PyObject *dec, uint8_t sign, uint32_t v, mpd_ssize_t exp) |
| 1984 | { |
| 1985 | |
| 1986 | #ifdef CONFIG_64 |
| 1987 | MPD(dec)->data[0] = v; |
| 1988 | MPD(dec)->len = 1; |
| 1989 | #else |
| 1990 | uint32_t q, r; |
| 1991 | q = v / MPD_RADIX; |
| 1992 | r = v - q * MPD_RADIX; |
| 1993 | MPD(dec)->data[1] = q; |
| 1994 | MPD(dec)->data[0] = r; |
| 1995 | MPD(dec)->len = q ? 2 : 1; |
| 1996 | #endif |
| 1997 | mpd_set_flags(MPD(dec), sign); |
| 1998 | MPD(dec)->exp = exp; |
| 1999 | mpd_setdigits(MPD(dec)); |
| 2000 | } |
| 2001 | |
| 2002 | /* Return a new PyDecObject from an mpd_ssize_t. */ |
| 2003 | static PyObject * |
| 2004 | PyDecType_FromSsize(PyTypeObject *type, mpd_ssize_t v, PyObject *context) |
| 2005 | { |
| 2006 | PyObject *dec; |
| 2007 | uint32_t status = 0; |
| 2008 | |
| 2009 | dec = PyDecType_New(type); |
| 2010 | if (dec == NULL) { |
| 2011 | return NULL; |
| 2012 | } |
| 2013 | |
| 2014 | mpd_qset_ssize(MPD(dec), v, CTX(context), &status); |
| 2015 | if (dec_addstatus(context, status)) { |
| 2016 | Py_DECREF(dec); |
| 2017 | return NULL; |
| 2018 | } |
| 2019 | return dec; |
| 2020 | } |
| 2021 | |
| 2022 | /* Return a new PyDecObject from an mpd_ssize_t. Conversion is exact. */ |
| 2023 | static PyObject * |
| 2024 | PyDecType_FromSsizeExact(PyTypeObject *type, mpd_ssize_t v, PyObject *context) |
| 2025 | { |
| 2026 | PyObject *dec; |
| 2027 | uint32_t status = 0; |
| 2028 | mpd_context_t maxctx; |
| 2029 | |
| 2030 | dec = PyDecType_New(type); |
| 2031 | if (dec == NULL) { |
| 2032 | return NULL; |
| 2033 | } |
| 2034 | |
| 2035 | mpd_maxcontext(&maxctx); |
| 2036 | |
| 2037 | mpd_qset_ssize(MPD(dec), v, &maxctx, &status); |
| 2038 | if (dec_addstatus(context, status)) { |
| 2039 | Py_DECREF(dec); |
| 2040 | return NULL; |
| 2041 | } |
| 2042 | return dec; |
| 2043 | } |
| 2044 | |
| 2045 | /* Convert from a PyLongObject. The context is not modified; flags set |
| 2046 | during conversion are accumulated in the status parameter. */ |
| 2047 | static PyObject * |
| 2048 | dec_from_long(PyTypeObject *type, const PyObject *v, |
| 2049 | const mpd_context_t *ctx, uint32_t *status) |
| 2050 | { |
| 2051 | PyObject *dec; |
| 2052 | PyLongObject *l = (PyLongObject *)v; |
| 2053 | Py_ssize_t ob_size; |
| 2054 | size_t len; |
| 2055 | uint8_t sign; |
| 2056 | |
| 2057 | dec = PyDecType_New(type); |
| 2058 | if (dec == NULL) { |
| 2059 | return NULL; |
| 2060 | } |
| 2061 | |
| 2062 | ob_size = Py_SIZE(l); |
| 2063 | if (ob_size == 0) { |
| 2064 | _dec_settriple(dec, MPD_POS, 0, 0); |
| 2065 | return dec; |
| 2066 | } |
| 2067 | |
| 2068 | if (ob_size < 0) { |
| 2069 | len = -ob_size; |
| 2070 | sign = MPD_NEG; |
| 2071 | } |
| 2072 | else { |
| 2073 | len = ob_size; |
| 2074 | sign = MPD_POS; |
| 2075 | } |
| 2076 | |
| 2077 | if (len == 1) { |
| 2078 | _dec_settriple(dec, sign, *l->ob_digit, 0); |
| 2079 | mpd_qfinalize(MPD(dec), ctx, status); |
| 2080 | return dec; |
| 2081 | } |
| 2082 | |
| 2083 | #if PYLONG_BITS_IN_DIGIT == 30 |
| 2084 | mpd_qimport_u32(MPD(dec), l->ob_digit, len, sign, PyLong_BASE, |
| 2085 | ctx, status); |
| 2086 | #elif PYLONG_BITS_IN_DIGIT == 15 |
| 2087 | mpd_qimport_u16(MPD(dec), l->ob_digit, len, sign, PyLong_BASE, |
| 2088 | ctx, status); |
| 2089 | #else |
| 2090 | #error "PYLONG_BITS_IN_DIGIT should be 15 or 30" |
| 2091 | #endif |
| 2092 | |
| 2093 | return dec; |
| 2094 | } |
| 2095 | |
| 2096 | /* Return a new PyDecObject from a PyLongObject. Use the context for |
| 2097 | conversion. */ |
| 2098 | static PyObject * |
| 2099 | PyDecType_FromLong(PyTypeObject *type, const PyObject *pylong, |
| 2100 | PyObject *context) |
| 2101 | { |
| 2102 | PyObject *dec; |
| 2103 | uint32_t status = 0; |
| 2104 | |
| 2105 | dec = dec_from_long(type, pylong, CTX(context), &status); |
| 2106 | if (dec == NULL) { |
| 2107 | return NULL; |
| 2108 | } |
| 2109 | |
| 2110 | if (dec_addstatus(context, status)) { |
| 2111 | Py_DECREF(dec); |
| 2112 | return NULL; |
| 2113 | } |
| 2114 | |
| 2115 | return dec; |
| 2116 | } |
| 2117 | |
| 2118 | /* Return a new PyDecObject from a PyLongObject. Use a maximum context |
| 2119 | for conversion. If the conversion is not exact, set InvalidOperation. */ |
| 2120 | static PyObject * |
| 2121 | PyDecType_FromLongExact(PyTypeObject *type, const PyObject *pylong, |
| 2122 | PyObject *context) |
| 2123 | { |
| 2124 | PyObject *dec; |
| 2125 | uint32_t status = 0; |
| 2126 | mpd_context_t maxctx; |
| 2127 | |
| 2128 | mpd_maxcontext(&maxctx); |
| 2129 | dec = dec_from_long(type, pylong, &maxctx, &status); |
| 2130 | if (dec == NULL) { |
| 2131 | return NULL; |
| 2132 | } |
| 2133 | |
| 2134 | if (status & (MPD_Inexact|MPD_Rounded)) { |
| 2135 | /* we want exact results */ |
| 2136 | mpd_seterror(MPD(dec), MPD_Invalid_operation, &status); |
| 2137 | } |
| 2138 | status &= MPD_Errors; |
| 2139 | if (dec_addstatus(context, status)) { |
| 2140 | Py_DECREF(dec); |
| 2141 | return NULL; |
| 2142 | } |
| 2143 | |
| 2144 | return dec; |
| 2145 | } |
| 2146 | |
| 2147 | /* Return a PyDecObject or a subtype from a PyFloatObject. |
| 2148 | Conversion is exact. */ |
| 2149 | static PyObject * |
| 2150 | PyDecType_FromFloatExact(PyTypeObject *type, PyObject *v, |
| 2151 | PyObject *context) |
| 2152 | { |
| 2153 | PyObject *dec, *tmp; |
| 2154 | PyObject *n, *d, *n_d; |
| 2155 | mpd_ssize_t k; |
| 2156 | double x; |
| 2157 | int sign; |
| 2158 | mpd_t *d1, *d2; |
| 2159 | uint32_t status = 0; |
| 2160 | mpd_context_t maxctx; |
| 2161 | |
| 2162 | |
| 2163 | assert(PyType_IsSubtype(type, &PyDec_Type)); |
| 2164 | |
| 2165 | if (PyLong_Check(v)) { |
| 2166 | return PyDecType_FromLongExact(type, v, context); |
| 2167 | } |
| 2168 | if (!PyFloat_Check(v)) { |
| 2169 | PyErr_SetString(PyExc_TypeError, |
| 2170 | "argument must be int of float"); |
| 2171 | return NULL; |
| 2172 | } |
| 2173 | |
| 2174 | x = PyFloat_AsDouble(v); |
| 2175 | if (x == -1.0 && PyErr_Occurred()) { |
| 2176 | return NULL; |
| 2177 | } |
| 2178 | sign = (copysign(1.0, x) == 1.0) ? 0 : 1; |
| 2179 | |
| 2180 | if (Py_IS_NAN(x) || Py_IS_INFINITY(x)) { |
| 2181 | dec = PyDecType_New(type); |
| 2182 | if (dec == NULL) { |
| 2183 | return NULL; |
| 2184 | } |
| 2185 | if (Py_IS_NAN(x)) { |
| 2186 | /* decimal.py calls repr(float(+-nan)), |
| 2187 | * which always gives a positive result. */ |
| 2188 | mpd_setspecial(MPD(dec), MPD_POS, MPD_NAN); |
| 2189 | } |
| 2190 | else { |
| 2191 | mpd_setspecial(MPD(dec), sign, MPD_INF); |
| 2192 | } |
| 2193 | return dec; |
| 2194 | } |
| 2195 | |
| 2196 | /* absolute value of the float */ |
| 2197 | tmp = PyObject_CallMethod(v, "__abs__", NULL); |
| 2198 | if (tmp == NULL) { |
| 2199 | return NULL; |
| 2200 | } |
| 2201 | |
| 2202 | /* float as integer ratio: numerator/denominator */ |
| 2203 | n_d = PyObject_CallMethod(tmp, "as_integer_ratio", NULL); |
| 2204 | Py_DECREF(tmp); |
| 2205 | if (n_d == NULL) { |
| 2206 | return NULL; |
| 2207 | } |
| 2208 | n = PyTuple_GET_ITEM(n_d, 0); |
| 2209 | d = PyTuple_GET_ITEM(n_d, 1); |
| 2210 | |
| 2211 | tmp = PyObject_CallMethod(d, "bit_length", NULL); |
| 2212 | if (tmp == NULL) { |
| 2213 | Py_DECREF(n_d); |
| 2214 | return NULL; |
| 2215 | } |
| 2216 | k = PyLong_AsSsize_t(tmp); |
| 2217 | Py_DECREF(tmp); |
| 2218 | if (k == -1 && PyErr_Occurred()) { |
| 2219 | Py_DECREF(n_d); |
| 2220 | return NULL; |
| 2221 | } |
| 2222 | k--; |
| 2223 | |
| 2224 | dec = PyDecType_FromLongExact(type, n, context); |
| 2225 | Py_DECREF(n_d); |
| 2226 | if (dec == NULL) { |
| 2227 | return NULL; |
| 2228 | } |
| 2229 | |
| 2230 | d1 = mpd_qnew(); |
| 2231 | if (d1 == NULL) { |
| 2232 | Py_DECREF(dec); |
| 2233 | PyErr_NoMemory(); |
| 2234 | return NULL; |
| 2235 | } |
| 2236 | d2 = mpd_qnew(); |
| 2237 | if (d2 == NULL) { |
| 2238 | mpd_del(d1); |
| 2239 | Py_DECREF(dec); |
| 2240 | PyErr_NoMemory(); |
| 2241 | return NULL; |
| 2242 | } |
| 2243 | |
| 2244 | mpd_maxcontext(&maxctx); |
| 2245 | mpd_qset_uint(d1, 5, &maxctx, &status); |
| 2246 | mpd_qset_ssize(d2, k, &maxctx, &status); |
| 2247 | mpd_qpow(d1, d1, d2, &maxctx, &status); |
| 2248 | if (dec_addstatus(context, status)) { |
| 2249 | mpd_del(d1); |
| 2250 | mpd_del(d2); |
| 2251 | Py_DECREF(dec); |
| 2252 | return NULL; |
| 2253 | } |
| 2254 | |
| 2255 | /* result = n * 5**k */ |
| 2256 | mpd_qmul(MPD(dec), MPD(dec), d1, &maxctx, &status); |
| 2257 | mpd_del(d1); |
| 2258 | mpd_del(d2); |
| 2259 | if (dec_addstatus(context, status)) { |
| 2260 | Py_DECREF(dec); |
| 2261 | return NULL; |
| 2262 | } |
| 2263 | /* result = +- n * 5**k * 10**-k */ |
| 2264 | mpd_set_sign(MPD(dec), sign); |
| 2265 | MPD(dec)->exp = -k; |
| 2266 | |
| 2267 | return dec; |
| 2268 | } |
| 2269 | |
| 2270 | static PyObject * |
| 2271 | PyDecType_FromFloat(PyTypeObject *type, PyObject *v, |
| 2272 | PyObject *context) |
| 2273 | { |
| 2274 | PyObject *dec; |
| 2275 | uint32_t status = 0; |
| 2276 | |
| 2277 | dec = PyDecType_FromFloatExact(type, v, context); |
| 2278 | if (dec == NULL) { |
| 2279 | return NULL; |
| 2280 | } |
| 2281 | |
| 2282 | mpd_qfinalize(MPD(dec), CTX(context), &status); |
| 2283 | if (dec_addstatus(context, status)) { |
| 2284 | Py_DECREF(dec); |
| 2285 | return NULL; |
| 2286 | } |
| 2287 | |
| 2288 | return dec; |
| 2289 | } |
| 2290 | |
| 2291 | static PyObject * |
| 2292 | sequence_as_tuple(PyObject *v, PyObject *ex, const char *mesg) |
| 2293 | { |
| 2294 | if (PyTuple_Check(v)) { |
| 2295 | Py_INCREF(v); |
| 2296 | return v; |
| 2297 | } |
| 2298 | if (PyList_Check(v)) { |
| 2299 | return PyList_AsTuple(v); |
| 2300 | } |
| 2301 | |
| 2302 | PyErr_SetString(ex, mesg); |
| 2303 | return NULL; |
| 2304 | } |
| 2305 | |
| 2306 | /* Return a new C string representation of a DecimalTuple. */ |
| 2307 | static char * |
| 2308 | dectuple_as_str(PyObject *dectuple) |
| 2309 | { |
| 2310 | PyObject *digits = NULL, *tmp; |
| 2311 | char *decstring = NULL; |
| 2312 | char sign_special[6]; |
| 2313 | char *cp; |
| 2314 | long sign, l; |
| 2315 | mpd_ssize_t exp = 0; |
| 2316 | Py_ssize_t i, mem, tsize; |
| 2317 | int n; |
| 2318 | |
| 2319 | assert(PyTuple_Check(dectuple)); |
| 2320 | |
| 2321 | if (PyTuple_Size(dectuple) != 3) { |
| 2322 | PyErr_SetString(PyExc_ValueError, |
| 2323 | "argument must be a sequence of length 3"); |
| 2324 | goto error; |
| 2325 | } |
| 2326 | |
| 2327 | /* sign */ |
| 2328 | tmp = PyTuple_GET_ITEM(dectuple, 0); |
| 2329 | if (!PyLong_Check(tmp)) { |
| 2330 | PyErr_SetString(PyExc_ValueError, |
| 2331 | "sign must be an integer with the value 0 or 1"); |
| 2332 | goto error; |
| 2333 | } |
| 2334 | sign = PyLong_AsLong(tmp); |
| 2335 | if (sign == -1 && PyErr_Occurred()) { |
| 2336 | goto error; |
| 2337 | } |
| 2338 | if (sign != 0 && sign != 1) { |
| 2339 | PyErr_SetString(PyExc_ValueError, |
| 2340 | "sign must be an integer with the value 0 or 1"); |
| 2341 | goto error; |
| 2342 | } |
| 2343 | sign_special[0] = sign ? '-' : '+'; |
| 2344 | sign_special[1] = '\0'; |
| 2345 | |
| 2346 | /* exponent or encoding for a special number */ |
| 2347 | tmp = PyTuple_GET_ITEM(dectuple, 2); |
| 2348 | if (PyUnicode_Check(tmp)) { |
| 2349 | /* special */ |
| 2350 | if (PyUnicode_CompareWithASCIIString(tmp, "F") == 0) { |
| 2351 | strcat(sign_special, "Inf"); |
| 2352 | } |
| 2353 | else if (PyUnicode_CompareWithASCIIString(tmp, "n") == 0) { |
| 2354 | strcat(sign_special, "NaN"); |
| 2355 | } |
| 2356 | else if (PyUnicode_CompareWithASCIIString(tmp, "N") == 0) { |
| 2357 | strcat(sign_special, "sNaN"); |
| 2358 | } |
| 2359 | else { |
| 2360 | PyErr_SetString(PyExc_ValueError, |
| 2361 | "string argument in the third position " |
| 2362 | "must be 'F', 'n' or 'N'"); |
| 2363 | goto error; |
| 2364 | } |
| 2365 | } |
| 2366 | else { |
| 2367 | /* exponent */ |
| 2368 | if (!PyLong_Check(tmp)) { |
| 2369 | PyErr_SetString(PyExc_ValueError, |
| 2370 | "exponent must be an integer"); |
| 2371 | goto error; |
| 2372 | } |
| 2373 | exp = PyLong_AsSsize_t(tmp); |
| 2374 | if (exp == -1 && PyErr_Occurred()) { |
| 2375 | goto error; |
| 2376 | } |
| 2377 | } |
| 2378 | |
| 2379 | /* coefficient */ |
| 2380 | digits = sequence_as_tuple(PyTuple_GET_ITEM(dectuple, 1), |
| 2381 | PyExc_ValueError, "coefficient must be a tuple of digits"); |
| 2382 | if (digits == NULL) { |
| 2383 | goto error; |
| 2384 | } |
| 2385 | |
| 2386 | tsize = PyTuple_Size(digits); |
| 2387 | /* [sign][coeffdigits+1][E][-][expdigits+1]['\0'] */ |
| 2388 | mem = 1 + tsize + 3 + MPD_EXPDIGITS + 2; |
| 2389 | cp = decstring = PyMem_Malloc(mem); |
| 2390 | if (decstring == NULL) { |
| 2391 | PyErr_NoMemory(); |
| 2392 | goto error; |
| 2393 | } |
| 2394 | |
| 2395 | n = snprintf(cp, mem, "%s", sign_special); |
| 2396 | if (n < 0 || n >= mem) { |
| 2397 | PyErr_SetString(PyExc_RuntimeError, |
| 2398 | "internal error in dec_sequence_as_str"); |
| 2399 | goto error; |
| 2400 | } |
| 2401 | cp += n; |
| 2402 | |
| 2403 | if (tsize == 0 && sign_special[1] == '\0') { |
| 2404 | /* empty tuple: zero coefficient, except for special numbers */ |
| 2405 | *cp++ = '0'; |
| 2406 | } |
| 2407 | for (i = 0; i < tsize; i++) { |
| 2408 | tmp = PyTuple_GET_ITEM(digits, i); |
| 2409 | if (!PyLong_Check(tmp)) { |
| 2410 | PyErr_SetString(PyExc_ValueError, |
| 2411 | "coefficient must be a tuple of digits"); |
| 2412 | goto error; |
| 2413 | } |
| 2414 | l = PyLong_AsLong(tmp); |
| 2415 | if (l == -1 && PyErr_Occurred()) { |
| 2416 | goto error; |
| 2417 | } |
| 2418 | if (l < 0 || l > 9) { |
| 2419 | PyErr_SetString(PyExc_ValueError, |
| 2420 | "coefficient must be a tuple of digits"); |
| 2421 | goto error; |
| 2422 | } |
| 2423 | *cp++ = (char)l + '0'; |
| 2424 | } |
| 2425 | *cp = '\0'; |
| 2426 | |
| 2427 | if (sign_special[1] == '\0') { |
| 2428 | /* not a special number */ |
| 2429 | *cp++ = 'E'; |
| 2430 | n = snprintf(cp, MPD_EXPDIGITS+1, "%" PRI_mpd_ssize_t, exp); |
| 2431 | if (n < 0 || n >= MPD_EXPDIGITS+1) { |
| 2432 | PyErr_SetString(PyExc_RuntimeError, |
| 2433 | "internal error in dec_sequence_as_str"); |
| 2434 | goto error; |
| 2435 | } |
| 2436 | } |
| 2437 | |
| 2438 | Py_XDECREF(digits); |
| 2439 | return decstring; |
| 2440 | |
| 2441 | |
| 2442 | error: |
| 2443 | Py_XDECREF(digits); |
| 2444 | if (decstring) PyMem_Free(decstring); |
| 2445 | return NULL; |
| 2446 | } |
| 2447 | |
| 2448 | /* Currently accepts tuples and lists. */ |
| 2449 | static PyObject * |
| 2450 | PyDecType_FromSequence(PyTypeObject *type, PyObject *v, |
| 2451 | PyObject *context) |
| 2452 | { |
| 2453 | PyObject *dectuple; |
| 2454 | PyObject *dec; |
| 2455 | char *s; |
| 2456 | |
| 2457 | dectuple = sequence_as_tuple(v, PyExc_TypeError, |
| 2458 | "argument must be a tuple or list"); |
| 2459 | if (dectuple == NULL) { |
| 2460 | return NULL; |
| 2461 | } |
| 2462 | |
| 2463 | s = dectuple_as_str(dectuple); |
| 2464 | Py_DECREF(dectuple); |
| 2465 | if (s == NULL) { |
| 2466 | return NULL; |
| 2467 | } |
| 2468 | |
| 2469 | dec = PyDecType_FromCString(type, s, context); |
| 2470 | |
| 2471 | PyMem_Free(s); |
| 2472 | return dec; |
| 2473 | } |
| 2474 | |
| 2475 | /* Currently accepts tuples and lists. */ |
| 2476 | static PyObject * |
| 2477 | PyDecType_FromSequenceExact(PyTypeObject *type, PyObject *v, |
| 2478 | PyObject *context) |
| 2479 | { |
| 2480 | PyObject *dectuple; |
| 2481 | PyObject *dec; |
| 2482 | char *s; |
| 2483 | |
| 2484 | dectuple = sequence_as_tuple(v, PyExc_TypeError, |
| 2485 | "argument must be a tuple or list"); |
| 2486 | if (dectuple == NULL) { |
| 2487 | return NULL; |
| 2488 | } |
| 2489 | |
| 2490 | s = dectuple_as_str(dectuple); |
| 2491 | Py_DECREF(dectuple); |
| 2492 | if (s == NULL) { |
| 2493 | return NULL; |
| 2494 | } |
| 2495 | |
| 2496 | dec = PyDecType_FromCStringExact(type, s, context); |
| 2497 | |
| 2498 | PyMem_Free(s); |
| 2499 | return dec; |
| 2500 | } |
| 2501 | |
| 2502 | #define PyDec_FromCString(str, context) \ |
| 2503 | PyDecType_FromCString(&PyDec_Type, str, context) |
| 2504 | #define PyDec_FromCStringExact(str, context) \ |
| 2505 | PyDecType_FromCStringExact(&PyDec_Type, str, context) |
| 2506 | |
| 2507 | #define PyDec_FromUnicode(unicode, context) \ |
| 2508 | PyDecType_FromUnicode(&PyDec_Type, unicode, context) |
| 2509 | #define PyDec_FromUnicodeExact(unicode, context) \ |
| 2510 | PyDecType_FromUnicodeExact(&PyDec_Type, unicode, context) |
| 2511 | #define PyDec_FromUnicodeExactWS(unicode, context) \ |
| 2512 | PyDecType_FromUnicodeExactWS(&PyDec_Type, unicode, context) |
| 2513 | |
| 2514 | #define PyDec_FromSsize(v, context) \ |
| 2515 | PyDecType_FromSsize(&PyDec_Type, v, context) |
| 2516 | #define PyDec_FromSsizeExact(v, context) \ |
| 2517 | PyDecType_FromSsizeExact(&PyDec_Type, v, context) |
| 2518 | |
| 2519 | #define PyDec_FromLong(pylong, context) \ |
| 2520 | PyDecType_FromLong(&PyDec_Type, pylong, context) |
| 2521 | #define PyDec_FromLongExact(pylong, context) \ |
| 2522 | PyDecType_FromLongExact(&PyDec_Type, pylong, context) |
| 2523 | |
| 2524 | #define PyDec_FromFloat(pyfloat, context) \ |
| 2525 | PyDecType_FromFloat(&PyDec_Type, pyfloat, context) |
| 2526 | #define PyDec_FromFloatExact(pyfloat, context) \ |
| 2527 | PyDecType_FromFloatExact(&PyDec_Type, pyfloat, context) |
| 2528 | |
| 2529 | #define PyDec_FromSequence(sequence, context) \ |
| 2530 | PyDecType_FromSequence(&PyDec_Type, sequence, context) |
| 2531 | #define PyDec_FromSequenceExact(sequence, context) \ |
| 2532 | PyDecType_FromSequenceExact(&PyDec_Type, sequence, context) |
| 2533 | |
| 2534 | /* class method */ |
| 2535 | static PyObject * |
| 2536 | dec_from_float(PyObject *dec, PyObject *pyfloat) |
| 2537 | { |
| 2538 | PyObject *context; |
| 2539 | |
| 2540 | CURRENT_CONTEXT(context); |
| 2541 | return PyDecType_FromFloatExact((PyTypeObject *)dec, pyfloat, context); |
| 2542 | } |
| 2543 | |
| 2544 | /* create_decimal_from_float */ |
| 2545 | static PyObject * |
| 2546 | ctx_from_float(PyObject *context, PyObject *v) |
| 2547 | { |
| 2548 | return PyDec_FromFloat(v, context); |
| 2549 | } |
| 2550 | |
| 2551 | /* Apply the context to the input operand. Return a new PyDecObject. */ |
| 2552 | static PyObject * |
| 2553 | dec_apply(PyObject *v, PyObject *context) |
| 2554 | { |
| 2555 | PyObject *result; |
| 2556 | uint32_t status = 0; |
| 2557 | |
| 2558 | result = dec_alloc(); |
| 2559 | if (result == NULL) { |
| 2560 | return NULL; |
| 2561 | } |
| 2562 | |
| 2563 | mpd_qcopy(MPD(result), MPD(v), &status); |
| 2564 | if (dec_addstatus(context, status)) { |
| 2565 | Py_DECREF(result); |
| 2566 | return NULL; |
| 2567 | } |
| 2568 | |
| 2569 | mpd_qfinalize(MPD(result), CTX(context), &status); |
| 2570 | if (dec_addstatus(context, status)) { |
| 2571 | Py_DECREF(result); |
| 2572 | return NULL; |
| 2573 | } |
| 2574 | |
| 2575 | return result; |
| 2576 | } |
| 2577 | |
| 2578 | /* 'v' can have any type accepted by the Decimal constructor. Attempt |
| 2579 | an exact conversion. If the result does not meet the restrictions |
| 2580 | for an mpd_t, fail with InvalidOperation. */ |
| 2581 | static PyObject * |
| 2582 | PyDecType_FromObjectExact(PyTypeObject *type, PyObject *v, PyObject *context) |
| 2583 | { |
| 2584 | if (v == NULL) { |
| 2585 | return PyDecType_FromSsizeExact(type, 0, context); |
| 2586 | } |
| 2587 | else if (PyDec_Check(v)) { |
| 2588 | Py_INCREF(v); |
| 2589 | return v; |
| 2590 | } |
| 2591 | else if (PyUnicode_Check(v)) { |
| 2592 | return PyDecType_FromUnicodeExactWS(type, v, context); |
| 2593 | } |
| 2594 | else if (PyLong_Check(v)) { |
| 2595 | return PyDecType_FromLongExact(type, v, context); |
| 2596 | } |
| 2597 | else if (PyTuple_Check(v) || PyList_Check(v)) { |
| 2598 | return PyDecType_FromSequenceExact(type, v, context); |
| 2599 | } |
| 2600 | else if (PyFloat_Check(v)) { |
| 2601 | if (dec_addstatus(context, MPD_Float_operation)) { |
| 2602 | return NULL; |
| 2603 | } |
| 2604 | return PyDecType_FromFloatExact(type, v, context); |
| 2605 | } |
| 2606 | else { |
| 2607 | PyErr_Format(PyExc_TypeError, |
| 2608 | "conversion from %s to Decimal is not supported", |
| 2609 | v->ob_type->tp_name); |
| 2610 | return NULL; |
| 2611 | } |
| 2612 | } |
| 2613 | |
| 2614 | /* The context is used during conversion. This function is the |
| 2615 | equivalent of context.create_decimal(). */ |
| 2616 | static PyObject * |
| 2617 | PyDec_FromObject(PyObject *v, PyObject *context) |
| 2618 | { |
| 2619 | if (v == NULL) { |
| 2620 | return PyDec_FromSsize(0, context); |
| 2621 | } |
| 2622 | else if (PyDec_Check(v)) { |
| 2623 | mpd_context_t *ctx = CTX(context); |
| 2624 | if (mpd_isnan(MPD(v)) && |
| 2625 | MPD(v)->digits > ctx->prec - ctx->clamp) { |
| 2626 | /* Special case: too many NaN payload digits */ |
| 2627 | PyObject *result; |
| 2628 | if (dec_addstatus(context, MPD_Conversion_syntax)) { |
| 2629 | return NULL; |
| 2630 | } |
| 2631 | result = dec_alloc(); |
| 2632 | if (result == NULL) { |
| 2633 | return NULL; |
| 2634 | } |
| 2635 | mpd_setspecial(MPD(result), MPD_POS, MPD_NAN); |
| 2636 | return result; |
| 2637 | } |
| 2638 | return dec_apply(v, context); |
| 2639 | } |
| 2640 | else if (PyUnicode_Check(v)) { |
| 2641 | return PyDec_FromUnicode(v, context); |
| 2642 | } |
| 2643 | else if (PyLong_Check(v)) { |
| 2644 | return PyDec_FromLong(v, context); |
| 2645 | } |
| 2646 | else if (PyTuple_Check(v) || PyList_Check(v)) { |
| 2647 | return PyDec_FromSequence(v, context); |
| 2648 | } |
| 2649 | else if (PyFloat_Check(v)) { |
| 2650 | if (dec_addstatus(context, MPD_Float_operation)) { |
| 2651 | return NULL; |
| 2652 | } |
| 2653 | return PyDec_FromFloat(v, context); |
| 2654 | } |
| 2655 | else { |
| 2656 | PyErr_Format(PyExc_TypeError, |
| 2657 | "conversion from %s to Decimal is not supported", |
| 2658 | v->ob_type->tp_name); |
| 2659 | return NULL; |
| 2660 | } |
| 2661 | } |
| 2662 | |
| 2663 | static PyObject * |
| 2664 | dec_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| 2665 | { |
| 2666 | static char *kwlist[] = {"value", "context", NULL}; |
| 2667 | PyObject *v = NULL; |
| 2668 | PyObject *context; |
| 2669 | |
| 2670 | CURRENT_CONTEXT(context); |
| 2671 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO", kwlist, |
| 2672 | &v, &context)) { |
| 2673 | return NULL; |
| 2674 | } |
| 2675 | CONTEXT_CHECK_VA(context); |
| 2676 | |
| 2677 | return PyDecType_FromObjectExact(type, v, context); |
| 2678 | } |
| 2679 | |
| 2680 | static PyObject * |
| 2681 | ctx_create_decimal(PyObject *context, PyObject *args) |
| 2682 | { |
| 2683 | PyObject *v = NULL; |
| 2684 | |
| 2685 | if (!PyArg_ParseTuple(args, "|O", &v)) { |
| 2686 | return NULL; |
| 2687 | } |
| 2688 | |
| 2689 | return PyDec_FromObject(v, context); |
| 2690 | } |
| 2691 | |
| 2692 | |
| 2693 | /******************************************************************************/ |
| 2694 | /* Implicit conversions to Decimal */ |
| 2695 | /******************************************************************************/ |
| 2696 | |
| 2697 | /* Try to convert PyObject v to a new PyDecObject conv. If the conversion |
| 2698 | fails, set conv to NULL (exception is set). If the conversion is not |
| 2699 | implemented, set conv to Py_NotImplemented. */ |
| 2700 | #define NOT_IMPL 0 |
| 2701 | #define TYPE_ERR 1 |
| 2702 | Py_LOCAL_INLINE(int) |
| 2703 | convert_op(int type_err, PyObject **conv, PyObject *v, PyObject *context) |
| 2704 | { |
| 2705 | |
| 2706 | if (PyDec_Check(v)) { |
| 2707 | *conv = v; |
| 2708 | Py_INCREF(v); |
| 2709 | return 1; |
| 2710 | } |
| 2711 | if (PyLong_Check(v)) { |
| 2712 | *conv = PyDec_FromLongExact(v, context); |
| 2713 | if (*conv == NULL) { |
| 2714 | return 0; |
| 2715 | } |
| 2716 | return 1; |
| 2717 | } |
| 2718 | |
| 2719 | if (type_err) { |
| 2720 | PyErr_Format(PyExc_TypeError, |
| 2721 | "conversion from %s to Decimal is not supported", |
| 2722 | v->ob_type->tp_name); |
| 2723 | } |
| 2724 | else { |
| 2725 | Py_INCREF(Py_NotImplemented); |
| 2726 | *conv = Py_NotImplemented; |
| 2727 | } |
| 2728 | return 0; |
| 2729 | } |
| 2730 | |
| 2731 | /* Return NotImplemented for unsupported types. */ |
| 2732 | #define CONVERT_OP(a, v, context) \ |
| 2733 | if (!convert_op(NOT_IMPL, a, v, context)) { \ |
| 2734 | return *(a); \ |
| 2735 | } |
| 2736 | |
| 2737 | #define CONVERT_BINOP(a, b, v, w, context) \ |
| 2738 | if (!convert_op(NOT_IMPL, a, v, context)) { \ |
| 2739 | return *(a); \ |
| 2740 | } \ |
| 2741 | if (!convert_op(NOT_IMPL, b, w, context)) { \ |
| 2742 | Py_DECREF(*(a)); \ |
| 2743 | return *(b); \ |
| 2744 | } |
| 2745 | |
| 2746 | #define CONVERT_TERNOP(a, b, c, v, w, x, context) \ |
| 2747 | if (!convert_op(NOT_IMPL, a, v, context)) { \ |
| 2748 | return *(a); \ |
| 2749 | } \ |
| 2750 | if (!convert_op(NOT_IMPL, b, w, context)) { \ |
| 2751 | Py_DECREF(*(a)); \ |
| 2752 | return *(b); \ |
| 2753 | } \ |
| 2754 | if (!convert_op(NOT_IMPL, c, x, context)) { \ |
| 2755 | Py_DECREF(*(a)); \ |
| 2756 | Py_DECREF(*(b)); \ |
| 2757 | return *(c); \ |
| 2758 | } |
| 2759 | |
| 2760 | /* Raise TypeError for unsupported types. */ |
| 2761 | #define CONVERT_OP_RAISE(a, v, context) \ |
| 2762 | if (!convert_op(TYPE_ERR, a, v, context)) { \ |
| 2763 | return NULL; \ |
| 2764 | } |
| 2765 | |
| 2766 | #define CONVERT_BINOP_RAISE(a, b, v, w, context) \ |
| 2767 | if (!convert_op(TYPE_ERR, a, v, context)) { \ |
| 2768 | return NULL; \ |
| 2769 | } \ |
| 2770 | if (!convert_op(TYPE_ERR, b, w, context)) { \ |
| 2771 | Py_DECREF(*(a)); \ |
| 2772 | return NULL; \ |
| 2773 | } |
| 2774 | |
| 2775 | #define CONVERT_TERNOP_RAISE(a, b, c, v, w, x, context) \ |
| 2776 | if (!convert_op(TYPE_ERR, a, v, context)) { \ |
| 2777 | return NULL; \ |
| 2778 | } \ |
| 2779 | if (!convert_op(TYPE_ERR, b, w, context)) { \ |
| 2780 | Py_DECREF(*(a)); \ |
| 2781 | return NULL; \ |
| 2782 | } \ |
| 2783 | if (!convert_op(TYPE_ERR, c, x, context)) { \ |
| 2784 | Py_DECREF(*(a)); \ |
| 2785 | Py_DECREF(*(b)); \ |
| 2786 | return NULL; \ |
| 2787 | } |
| 2788 | |
| 2789 | |
| 2790 | /******************************************************************************/ |
| 2791 | /* Implicit conversions to Decimal for comparison */ |
| 2792 | /******************************************************************************/ |
| 2793 | |
| 2794 | /* Convert rationals for comparison */ |
| 2795 | static PyObject *Rational = NULL; |
| 2796 | static PyObject * |
| 2797 | multiply_by_denominator(PyObject *v, PyObject *r, PyObject *context) |
| 2798 | { |
| 2799 | PyObject *result; |
| 2800 | PyObject *tmp = NULL; |
| 2801 | PyObject *denom = NULL; |
| 2802 | uint32_t status = 0; |
| 2803 | mpd_context_t maxctx; |
| 2804 | mpd_ssize_t exp; |
| 2805 | mpd_t *vv; |
| 2806 | |
| 2807 | /* v is not special, r is a rational */ |
| 2808 | tmp = PyObject_GetAttrString(r, "denominator"); |
| 2809 | if (tmp == NULL) { |
| 2810 | return NULL; |
| 2811 | } |
| 2812 | denom = PyDec_FromLongExact(tmp, context); |
| 2813 | Py_DECREF(tmp); |
| 2814 | if (denom == NULL) { |
| 2815 | return NULL; |
| 2816 | } |
| 2817 | |
| 2818 | vv = mpd_qncopy(MPD(v)); |
| 2819 | if (vv == NULL) { |
| 2820 | Py_DECREF(denom); |
| 2821 | PyErr_NoMemory(); |
| 2822 | return NULL; |
| 2823 | } |
| 2824 | result = dec_alloc(); |
| 2825 | if (result == NULL) { |
| 2826 | Py_DECREF(denom); |
| 2827 | mpd_del(vv); |
| 2828 | return NULL; |
| 2829 | } |
| 2830 | |
| 2831 | mpd_maxcontext(&maxctx); |
| 2832 | /* Prevent Overflow in the following multiplication. The result of |
| 2833 | the multiplication is only used in mpd_qcmp, which can handle |
| 2834 | values that are technically out of bounds, like (for 32-bit) |
| 2835 | 99999999999999999999...99999999e+425000000. */ |
| 2836 | exp = vv->exp; |
| 2837 | vv->exp = 0; |
| 2838 | mpd_qmul(MPD(result), vv, MPD(denom), &maxctx, &status); |
| 2839 | MPD(result)->exp = exp; |
| 2840 | |
| 2841 | Py_DECREF(denom); |
| 2842 | mpd_del(vv); |
| 2843 | /* If any status has been accumulated during the multiplication, |
| 2844 | the result is invalid. This is very unlikely, since even the |
| 2845 | 32-bit version supports 425000000 digits. */ |
| 2846 | if (status) { |
| 2847 | PyErr_SetString(PyExc_ValueError, |
| 2848 | "exact conversion for comparison failed"); |
| 2849 | Py_DECREF(result); |
| 2850 | return NULL; |
| 2851 | } |
| 2852 | |
| 2853 | return result; |
| 2854 | } |
| 2855 | |
| 2856 | static PyObject * |
| 2857 | numerator_as_decimal(PyObject *r, PyObject *context) |
| 2858 | { |
| 2859 | PyObject *tmp, *num; |
| 2860 | |
| 2861 | tmp = PyObject_GetAttrString(r, "numerator"); |
| 2862 | if (tmp == NULL) { |
| 2863 | return NULL; |
| 2864 | } |
| 2865 | |
| 2866 | num = PyDec_FromLongExact(tmp, context); |
| 2867 | Py_DECREF(tmp); |
| 2868 | return num; |
| 2869 | } |
| 2870 | |
| 2871 | /* Convert v and w for comparison. v is a Decimal. If w is a Rational, both |
| 2872 | v and w have to be transformed. Return 1 for success, with new references |
| 2873 | to the converted objects in vcmp and wcmp. Return 0 for failure. In that |
| 2874 | case wcmp is either NULL or Py_NotImplemented (new reference) and vcmp |
| 2875 | is undefined. */ |
| 2876 | static int |
| 2877 | convert_op_cmp(PyObject **vcmp, PyObject **wcmp, PyObject *v, PyObject *w, |
| 2878 | int op, PyObject *context) |
| 2879 | { |
| 2880 | mpd_context_t *ctx = CTX(context); |
| 2881 | |
| 2882 | *vcmp = v; |
| 2883 | |
| 2884 | if (PyDec_Check(w)) { |
| 2885 | Py_INCREF(w); |
| 2886 | *wcmp = w; |
| 2887 | } |
| 2888 | else if (PyLong_Check(w)) { |
| 2889 | *wcmp = PyDec_FromLongExact(w, context); |
| 2890 | } |
| 2891 | else if (PyFloat_Check(w)) { |
| 2892 | if (op != Py_EQ && op != Py_NE && |
| 2893 | dec_addstatus(context, MPD_Float_operation)) { |
| 2894 | *wcmp = NULL; |
| 2895 | } |
| 2896 | else { |
| 2897 | ctx->status |= MPD_Float_operation; |
| 2898 | *wcmp = PyDec_FromFloatExact(w, context); |
| 2899 | } |
| 2900 | } |
| 2901 | else if (PyComplex_Check(w) && (op == Py_EQ || op == Py_NE)) { |
| 2902 | Py_complex c = PyComplex_AsCComplex(w); |
| 2903 | if (c.real == -1.0 && PyErr_Occurred()) { |
| 2904 | *wcmp = NULL; |
| 2905 | } |
| 2906 | else if (c.imag == 0.0) { |
| 2907 | PyObject *tmp = PyFloat_FromDouble(c.real); |
| 2908 | if (tmp == NULL) { |
| 2909 | *wcmp = NULL; |
| 2910 | } |
| 2911 | else { |
| 2912 | ctx->status |= MPD_Float_operation; |
| 2913 | *wcmp = PyDec_FromFloatExact(tmp, context); |
| 2914 | Py_DECREF(tmp); |
| 2915 | } |
| 2916 | } |
| 2917 | else { |
| 2918 | Py_INCREF(Py_NotImplemented); |
| 2919 | *wcmp = Py_NotImplemented; |
| 2920 | } |
| 2921 | } |
| 2922 | else if (PyObject_IsInstance(w, Rational)) { |
| 2923 | *wcmp = numerator_as_decimal(w, context); |
| 2924 | if (*wcmp && !mpd_isspecial(MPD(v))) { |
| 2925 | *vcmp = multiply_by_denominator(v, w, context); |
| 2926 | if (*vcmp == NULL) { |
| 2927 | Py_CLEAR(*wcmp); |
| 2928 | } |
| 2929 | } |
| 2930 | } |
| 2931 | else { |
| 2932 | Py_INCREF(Py_NotImplemented); |
| 2933 | *wcmp = Py_NotImplemented; |
| 2934 | } |
| 2935 | |
| 2936 | if (*wcmp == NULL || *wcmp == Py_NotImplemented) { |
| 2937 | return 0; |
| 2938 | } |
| 2939 | if (*vcmp == v) { |
| 2940 | Py_INCREF(v); |
| 2941 | } |
| 2942 | return 1; |
| 2943 | } |
| 2944 | |
| 2945 | #define CONVERT_BINOP_CMP(vcmp, wcmp, v, w, op, ctx) \ |
| 2946 | if (!convert_op_cmp(vcmp, wcmp, v, w, op, ctx)) { \ |
| 2947 | return *(wcmp); \ |
| 2948 | } \ |
| 2949 | |
| 2950 | |
| 2951 | /******************************************************************************/ |
| 2952 | /* Conversions from decimal */ |
| 2953 | /******************************************************************************/ |
| 2954 | |
| 2955 | static PyObject * |
| 2956 | unicode_fromascii(const char *s, Py_ssize_t size) |
| 2957 | { |
| 2958 | PyObject *res; |
| 2959 | |
| 2960 | res = PyUnicode_New(size, 127); |
| 2961 | if (res == NULL) { |
| 2962 | return NULL; |
| 2963 | } |
| 2964 | |
| 2965 | memcpy(PyUnicode_1BYTE_DATA(res), s, size); |
| 2966 | return res; |
| 2967 | } |
| 2968 | |
| 2969 | /* PyDecObject as a string. The default module context is only used for |
| 2970 | the value of 'capitals'. */ |
| 2971 | static PyObject * |
| 2972 | dec_str(PyObject *dec) |
| 2973 | { |
| 2974 | PyObject *res, *context; |
| 2975 | mpd_ssize_t size; |
| 2976 | char *cp; |
| 2977 | |
| 2978 | CURRENT_CONTEXT(context); |
| 2979 | size = mpd_to_sci_size(&cp, MPD(dec), CtxCaps(context)); |
| 2980 | if (size < 0) { |
| 2981 | PyErr_NoMemory(); |
| 2982 | return NULL; |
| 2983 | } |
| 2984 | |
| 2985 | res = unicode_fromascii(cp, size); |
| 2986 | mpd_free(cp); |
| 2987 | return res; |
| 2988 | } |
| 2989 | |
| 2990 | /* Representation of a PyDecObject. */ |
| 2991 | static PyObject * |
| 2992 | dec_repr(PyObject *dec) |
| 2993 | { |
| 2994 | PyObject *res, *context; |
| 2995 | char *cp; |
| 2996 | |
| 2997 | CURRENT_CONTEXT(context); |
| 2998 | cp = mpd_to_sci(MPD(dec), CtxCaps(context)); |
| 2999 | if (cp == NULL) { |
| 3000 | PyErr_NoMemory(); |
| 3001 | return NULL; |
| 3002 | } |
| 3003 | |
| 3004 | res = PyUnicode_FromFormat("Decimal('%s')", cp); |
| 3005 | mpd_free(cp); |
| 3006 | return res; |
| 3007 | } |
| 3008 | |
| 3009 | /* Convert decimal_point or thousands_sep, which may be multibyte or in |
| 3010 | the range [128, 255], to a UTF8 string. */ |
| 3011 | static PyObject * |
| 3012 | dotsep_as_utf8(const char *s) |
| 3013 | { |
| 3014 | PyObject *utf8; |
| 3015 | PyObject *tmp; |
| 3016 | wchar_t buf[2]; |
| 3017 | size_t n; |
| 3018 | |
| 3019 | n = mbstowcs(buf, s, 2); |
| 3020 | if (n != 1) { /* Issue #7442 */ |
| 3021 | PyErr_SetString(PyExc_ValueError, |
| 3022 | "invalid decimal point or unsupported " |
| 3023 | "combination of LC_CTYPE and LC_NUMERIC"); |
| 3024 | return NULL; |
| 3025 | } |
| 3026 | tmp = PyUnicode_FromWideChar(buf, n); |
| 3027 | if (tmp == NULL) { |
| 3028 | return NULL; |
| 3029 | } |
| 3030 | utf8 = PyUnicode_AsUTF8String(tmp); |
| 3031 | Py_DECREF(tmp); |
| 3032 | return utf8; |
| 3033 | } |
| 3034 | |
| 3035 | /* Formatted representation of a PyDecObject. */ |
| 3036 | static PyObject * |
| 3037 | dec_format(PyObject *dec, PyObject *args) |
| 3038 | { |
| 3039 | PyObject *result = NULL; |
| 3040 | PyObject *override = NULL; |
| 3041 | PyObject *dot = NULL; |
| 3042 | PyObject *sep = NULL; |
| 3043 | PyObject *grouping = NULL; |
| 3044 | PyObject *fmt = NULL; |
| 3045 | PyObject *fmtarg; |
| 3046 | PyObject *context; |
| 3047 | mpd_spec_t spec; |
| 3048 | char *decstring= NULL; |
| 3049 | uint32_t status = 0; |
| 3050 | size_t n; |
| 3051 | |
| 3052 | |
| 3053 | CURRENT_CONTEXT(context); |
| 3054 | if (!PyArg_ParseTuple(args, "O|O", &fmtarg, &override)) { |
| 3055 | return NULL; |
| 3056 | } |
| 3057 | |
| 3058 | if (PyUnicode_Check(fmtarg)) { |
| 3059 | fmt = PyUnicode_AsUTF8String(fmtarg); |
| 3060 | if (fmt == NULL) { |
| 3061 | return NULL; |
| 3062 | } |
| 3063 | } |
| 3064 | else { |
| 3065 | PyErr_SetString(PyExc_TypeError, |
| 3066 | "format arg must be str"); |
| 3067 | return NULL; |
| 3068 | } |
| 3069 | |
| 3070 | if (!mpd_parse_fmt_str(&spec, PyBytes_AS_STRING(fmt), |
| 3071 | CtxCaps(context))) { |
| 3072 | PyErr_SetString(PyExc_ValueError, |
| 3073 | "invalid format string"); |
| 3074 | goto finish; |
| 3075 | } |
| 3076 | if (override) { |
| 3077 | /* Values for decimal_point, thousands_sep and grouping can |
| 3078 | be explicitly specified in the override dict. These values |
| 3079 | take precedence over the values obtained from localeconv() |
| 3080 | in mpd_parse_fmt_str(). The feature is not documented and |
| 3081 | is only used in test_decimal. */ |
| 3082 | if (!PyDict_Check(override)) { |
| 3083 | PyErr_SetString(PyExc_TypeError, |
| 3084 | "optional argument must be a dict"); |
| 3085 | goto finish; |
| 3086 | } |
| 3087 | if ((dot = PyDict_GetItemString(override, "decimal_point"))) { |
| 3088 | if ((dot = PyUnicode_AsUTF8String(dot)) == NULL) { |
| 3089 | goto finish; |
| 3090 | } |
| 3091 | spec.dot = PyBytes_AS_STRING(dot); |
| 3092 | } |
| 3093 | if ((sep = PyDict_GetItemString(override, "thousands_sep"))) { |
| 3094 | if ((sep = PyUnicode_AsUTF8String(sep)) == NULL) { |
| 3095 | goto finish; |
| 3096 | } |
| 3097 | spec.sep = PyBytes_AS_STRING(sep); |
| 3098 | } |
| 3099 | if ((grouping = PyDict_GetItemString(override, "grouping"))) { |
| 3100 | if ((grouping = PyUnicode_AsUTF8String(grouping)) == NULL) { |
| 3101 | goto finish; |
| 3102 | } |
| 3103 | spec.grouping = PyBytes_AS_STRING(grouping); |
| 3104 | } |
| 3105 | if (mpd_validate_lconv(&spec) < 0) { |
| 3106 | PyErr_SetString(PyExc_ValueError, |
| 3107 | "invalid override dict"); |
| 3108 | goto finish; |
| 3109 | } |
| 3110 | } |
| 3111 | else { |
| 3112 | n = strlen(spec.dot); |
| 3113 | if (n > 1 || (n == 1 && !isascii((uchar)spec.dot[0]))) { |
| 3114 | /* fix locale dependent non-ascii characters */ |
| 3115 | dot = dotsep_as_utf8(spec.dot); |
| 3116 | if (dot == NULL) { |
| 3117 | goto finish; |
| 3118 | } |
| 3119 | spec.dot = PyBytes_AS_STRING(dot); |
| 3120 | } |
| 3121 | n = strlen(spec.sep); |
| 3122 | if (n > 1 || (n == 1 && !isascii((uchar)spec.sep[0]))) { |
| 3123 | /* fix locale dependent non-ascii characters */ |
| 3124 | sep = dotsep_as_utf8(spec.sep); |
| 3125 | if (sep == NULL) { |
| 3126 | goto finish; |
| 3127 | } |
| 3128 | spec.sep = PyBytes_AS_STRING(sep); |
| 3129 | } |
| 3130 | } |
| 3131 | |
| 3132 | |
| 3133 | decstring = mpd_qformat_spec(MPD(dec), &spec, CTX(context), &status); |
| 3134 | if (decstring == NULL) { |
| 3135 | dec_addstatus(context, status); |
| 3136 | goto finish; |
| 3137 | } |
| 3138 | result = PyUnicode_DecodeUTF8(decstring, strlen(decstring), NULL); |
| 3139 | |
| 3140 | |
| 3141 | finish: |
| 3142 | Py_XDECREF(grouping); |
| 3143 | Py_XDECREF(sep); |
| 3144 | Py_XDECREF(dot); |
| 3145 | Py_XDECREF(fmt); |
| 3146 | if (decstring) mpd_free(decstring); |
| 3147 | return result; |
| 3148 | } |
| 3149 | |
| 3150 | /* Return a PyLongObject from a PyDecObject, using the specified rounding |
| 3151 | * mode. The context precision is not observed. */ |
| 3152 | static PyObject * |
| 3153 | dec_as_long(PyObject *dec, PyObject *context, int round) |
| 3154 | { |
| 3155 | PyLongObject *pylong; |
| 3156 | size_t maxsize, n; |
| 3157 | Py_ssize_t i; |
| 3158 | mpd_t *x; |
| 3159 | mpd_context_t workctx; |
| 3160 | uint32_t status = 0; |
| 3161 | |
| 3162 | if (mpd_isspecial(MPD(dec))) { |
| 3163 | if (mpd_isnan(MPD(dec))) { |
| 3164 | PyErr_SetString(PyExc_ValueError, |
| 3165 | "cannot convert NaN to integer"); |
| 3166 | } |
| 3167 | else { |
| 3168 | PyErr_SetString(PyExc_OverflowError, |
| 3169 | "cannot convert Infinity to integer"); |
| 3170 | } |
| 3171 | return NULL; |
| 3172 | } |
| 3173 | |
| 3174 | x = mpd_qnew(); |
| 3175 | if (x == NULL) { |
| 3176 | PyErr_NoMemory(); |
| 3177 | return NULL; |
| 3178 | } |
| 3179 | workctx = *CTX(context); |
| 3180 | workctx.round = round; |
| 3181 | mpd_qround_to_int(x, MPD(dec), &workctx, &status); |
| 3182 | if (dec_addstatus(context, status)) { |
| 3183 | mpd_del(x); |
| 3184 | return NULL; |
| 3185 | } |
| 3186 | |
| 3187 | maxsize = mpd_sizeinbase(x, PyLong_BASE); |
| 3188 | if (maxsize > PY_SSIZE_T_MAX) { |
| 3189 | mpd_del(x); |
| 3190 | PyErr_NoMemory(); |
| 3191 | return NULL; |
| 3192 | } |
| 3193 | pylong = _PyLong_New(maxsize); |
| 3194 | if (pylong == NULL) { |
| 3195 | mpd_del(x); |
| 3196 | return NULL; |
| 3197 | } |
| 3198 | |
| 3199 | status = 0; |
| 3200 | #if PYLONG_BITS_IN_DIGIT == 30 |
| 3201 | n = mpd_qexport_u32(pylong->ob_digit, maxsize, PyLong_BASE, x, &status); |
| 3202 | #elif PYLONG_BITS_IN_DIGIT == 15 |
| 3203 | n = mpd_qexport_u16(pylong->ob_digit, maxsize, PyLong_BASE, x, &status); |
| 3204 | #else |
| 3205 | #error "PYLONG_BITS_IN_DIGIT should be 15 or 30" |
| 3206 | #endif |
| 3207 | if (dec_addstatus(context, status)) { |
| 3208 | Py_DECREF((PyObject *) pylong); |
| 3209 | mpd_del(x); |
| 3210 | return NULL; |
| 3211 | } |
| 3212 | |
| 3213 | i = n; |
| 3214 | while ((i > 0) && (pylong->ob_digit[i-1] == 0)) { |
| 3215 | i--; |
| 3216 | } |
| 3217 | |
| 3218 | Py_SIZE(pylong) = i; |
| 3219 | if (mpd_isnegative(x) && !mpd_iszero(x)) { |
| 3220 | Py_SIZE(pylong) = -i; |
| 3221 | } |
| 3222 | |
| 3223 | mpd_del(x); |
| 3224 | return (PyObject *) pylong; |
| 3225 | } |
| 3226 | |
| 3227 | static PyObject * |
| 3228 | PyDec_ToIntegralValue(PyObject *dec, PyObject *args, PyObject *kwds) |
| 3229 | { |
| 3230 | static char *kwlist[] = {"rounding", "context", NULL}; |
| 3231 | PyObject *result; |
| 3232 | PyObject *context; |
| 3233 | uint32_t status = 0; |
| 3234 | mpd_context_t workctx; |
| 3235 | int round = -1; |
| 3236 | |
| 3237 | CURRENT_CONTEXT(context); |
| 3238 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, |
| 3239 | &round, &context)) { |
| 3240 | return NULL; |
| 3241 | } |
| 3242 | CONTEXT_CHECK_VA(context); |
| 3243 | |
| 3244 | workctx = *CTX(context); |
| 3245 | if (round >= 0) { |
| 3246 | if (!mpd_qsetround(&workctx, round)) { |
| 3247 | return type_error_ptr(invalid_rounding_err); |
| 3248 | } |
| 3249 | } |
| 3250 | |
| 3251 | result = dec_alloc(); |
| 3252 | if (result == NULL) { |
| 3253 | return NULL; |
| 3254 | } |
| 3255 | |
| 3256 | mpd_qround_to_int(MPD(result), MPD(dec), &workctx, &status); |
| 3257 | if (dec_addstatus(context, status)) { |
| 3258 | Py_DECREF(result); |
| 3259 | return NULL; |
| 3260 | } |
| 3261 | |
| 3262 | return result; |
| 3263 | } |
| 3264 | |
| 3265 | static PyObject * |
| 3266 | PyDec_ToIntegralExact(PyObject *dec, PyObject *args, PyObject *kwds) |
| 3267 | { |
| 3268 | static char *kwlist[] = {"rounding", "context", NULL}; |
| 3269 | PyObject *result; |
| 3270 | PyObject *context; |
| 3271 | uint32_t status = 0; |
| 3272 | mpd_context_t workctx; |
| 3273 | int round = -1; |
| 3274 | |
| 3275 | CURRENT_CONTEXT(context); |
| 3276 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, |
| 3277 | &round, &context)) { |
| 3278 | return NULL; |
| 3279 | } |
| 3280 | CONTEXT_CHECK_VA(context); |
| 3281 | |
| 3282 | workctx = *CTX(context); |
| 3283 | if (round >= 0) { |
| 3284 | if (!mpd_qsetround(&workctx, round)) { |
| 3285 | return type_error_ptr(invalid_rounding_err); |
| 3286 | } |
| 3287 | } |
| 3288 | |
| 3289 | result = dec_alloc(); |
| 3290 | if (result == NULL) { |
| 3291 | return NULL; |
| 3292 | } |
| 3293 | |
| 3294 | mpd_qround_to_intx(MPD(result), MPD(dec), &workctx, &status); |
| 3295 | if (dec_addstatus(context, status)) { |
| 3296 | Py_DECREF(result); |
| 3297 | return NULL; |
| 3298 | } |
| 3299 | |
| 3300 | return result; |
| 3301 | } |
| 3302 | |
| 3303 | static PyObject * |
| 3304 | PyDec_AsFloat(PyObject *dec) |
| 3305 | { |
| 3306 | PyObject *f, *s; |
| 3307 | |
| 3308 | s = dec_str(dec); |
| 3309 | if (s == NULL) { |
| 3310 | return NULL; |
| 3311 | } |
| 3312 | |
| 3313 | f = PyFloat_FromString(s); |
| 3314 | Py_DECREF(s); |
| 3315 | |
| 3316 | return f; |
| 3317 | } |
| 3318 | |
| 3319 | static PyObject * |
| 3320 | PyDec_Round(PyObject *dec, PyObject *args) |
| 3321 | { |
| 3322 | PyObject *result; |
| 3323 | PyObject *x = NULL; |
| 3324 | uint32_t status = 0; |
| 3325 | PyObject *context; |
| 3326 | |
| 3327 | |
| 3328 | CURRENT_CONTEXT(context); |
| 3329 | if (!PyArg_ParseTuple(args, "|O", &x)) { |
| 3330 | return NULL; |
| 3331 | } |
| 3332 | |
| 3333 | if (x) { |
| 3334 | mpd_uint_t dq[1] = {1}; |
| 3335 | mpd_t q = {MPD_STATIC|MPD_CONST_DATA,0,1,1,1,dq}; |
| 3336 | mpd_ssize_t y; |
| 3337 | |
| 3338 | if (!PyLong_Check(x)) { |
| 3339 | PyErr_SetString(PyExc_TypeError, |
| 3340 | "optional arg must be an integer"); |
| 3341 | return NULL; |
| 3342 | } |
| 3343 | |
| 3344 | y = PyLong_AsSsize_t(x); |
| 3345 | if (y == -1 && PyErr_Occurred()) { |
| 3346 | return NULL; |
| 3347 | } |
| 3348 | result = dec_alloc(); |
| 3349 | if (result == NULL) { |
| 3350 | return NULL; |
| 3351 | } |
| 3352 | |
| 3353 | q.exp = (y == MPD_SSIZE_MIN) ? MPD_SSIZE_MAX : -y; |
| 3354 | mpd_qquantize(MPD(result), MPD(dec), &q, CTX(context), &status); |
| 3355 | if (dec_addstatus(context, status)) { |
| 3356 | Py_DECREF(result); |
| 3357 | return NULL; |
| 3358 | } |
| 3359 | |
| 3360 | return result; |
| 3361 | } |
| 3362 | else { |
| 3363 | return dec_as_long(dec, context, MPD_ROUND_HALF_EVEN); |
| 3364 | } |
| 3365 | } |
| 3366 | |
| 3367 | PyObject *DecimalTuple = NULL; |
| 3368 | /* Return the DecimalTuple representation of a PyDecObject. */ |
| 3369 | static PyObject * |
| 3370 | PyDec_AsTuple(PyObject *dec, PyObject *dummy UNUSED) |
| 3371 | { |
| 3372 | PyObject *result = NULL; |
| 3373 | PyObject *sign = NULL; |
| 3374 | PyObject *coeff = NULL; |
| 3375 | PyObject *expt = NULL; |
| 3376 | PyObject *tmp = NULL; |
| 3377 | mpd_t *x = NULL; |
| 3378 | char *intstring = NULL; |
| 3379 | Py_ssize_t intlen, i; |
| 3380 | |
| 3381 | |
| 3382 | x = mpd_qncopy(MPD(dec)); |
| 3383 | if (x == NULL) { |
| 3384 | PyErr_NoMemory(); |
| 3385 | goto out; |
| 3386 | } |
| 3387 | |
| 3388 | sign = PyLong_FromUnsignedLong(mpd_sign(MPD(dec))); |
| 3389 | if (sign == NULL) { |
| 3390 | goto out; |
| 3391 | } |
| 3392 | |
| 3393 | if (mpd_isinfinite(x)) { |
| 3394 | expt = PyUnicode_FromString("F"); |
| 3395 | if (expt == NULL) { |
| 3396 | goto out; |
| 3397 | } |
| 3398 | /* decimal.py has non-compliant infinity payloads. */ |
| 3399 | coeff = Py_BuildValue("(i)", 0); |
| 3400 | if (coeff == NULL) { |
| 3401 | goto out; |
| 3402 | } |
| 3403 | } |
| 3404 | else { |
| 3405 | if (mpd_isnan(x)) { |
| 3406 | expt = PyUnicode_FromString(mpd_isqnan(x)?"n":"N"); |
| 3407 | } |
| 3408 | else { |
| 3409 | expt = PyLong_FromSsize_t(MPD(dec)->exp); |
| 3410 | } |
| 3411 | if (expt == NULL) { |
| 3412 | goto out; |
| 3413 | } |
| 3414 | |
| 3415 | /* coefficient is defined */ |
| 3416 | if (x->len > 0) { |
| 3417 | |
| 3418 | /* make an integer */ |
| 3419 | x->exp = 0; |
| 3420 | /* clear NaN and sign */ |
| 3421 | mpd_clear_flags(x); |
| 3422 | intstring = mpd_to_sci(x, 1); |
| 3423 | if (intstring == NULL) { |
| 3424 | PyErr_NoMemory(); |
| 3425 | goto out; |
| 3426 | } |
| 3427 | |
| 3428 | intlen = strlen(intstring); |
| 3429 | coeff = PyTuple_New(intlen); |
| 3430 | if (coeff == NULL) { |
| 3431 | goto out; |
| 3432 | } |
| 3433 | |
| 3434 | for (i = 0; i < intlen; i++) { |
| 3435 | tmp = PyLong_FromLong(intstring[i]-'0'); |
| 3436 | if (tmp == NULL) { |
| 3437 | goto out; |
| 3438 | } |
| 3439 | PyTuple_SET_ITEM(coeff, i, tmp); |
| 3440 | } |
| 3441 | } |
| 3442 | else { |
| 3443 | coeff = PyTuple_New(0); |
| 3444 | if (coeff == NULL) { |
| 3445 | goto out; |
| 3446 | } |
| 3447 | } |
| 3448 | } |
| 3449 | |
| 3450 | result = PyObject_CallFunctionObjArgs(DecimalTuple, |
| 3451 | sign, coeff, expt, NULL); |
| 3452 | |
| 3453 | out: |
| 3454 | if (x) mpd_del(x); |
| 3455 | if (intstring) mpd_free(intstring); |
| 3456 | Py_XDECREF(sign); |
| 3457 | Py_XDECREF(coeff); |
| 3458 | Py_XDECREF(expt); |
| 3459 | return result; |
| 3460 | } |
| 3461 | |
| 3462 | |
| 3463 | /******************************************************************************/ |
| 3464 | /* Macros for converting mpdecimal functions to Decimal methods */ |
| 3465 | /******************************************************************************/ |
| 3466 | |
| 3467 | /* Unary number method that uses the default module context. */ |
| 3468 | #define Dec_UnaryNumberMethod(MPDFUNC) \ |
| 3469 | static PyObject * \ |
| 3470 | nm_##MPDFUNC(PyObject *self) \ |
| 3471 | { \ |
| 3472 | PyObject *result; \ |
| 3473 | PyObject *context; \ |
| 3474 | uint32_t status = 0; \ |
| 3475 | \ |
| 3476 | CURRENT_CONTEXT(context); \ |
| 3477 | if ((result = dec_alloc()) == NULL) { \ |
| 3478 | return NULL; \ |
| 3479 | } \ |
| 3480 | \ |
| 3481 | MPDFUNC(MPD(result), MPD(self), CTX(context), &status); \ |
| 3482 | if (dec_addstatus(context, status)) { \ |
| 3483 | Py_DECREF(result); \ |
| 3484 | return NULL; \ |
| 3485 | } \ |
| 3486 | \ |
| 3487 | return result; \ |
| 3488 | } |
| 3489 | |
| 3490 | /* Binary number method that uses default module context. */ |
| 3491 | #define Dec_BinaryNumberMethod(MPDFUNC) \ |
| 3492 | static PyObject * \ |
| 3493 | nm_##MPDFUNC(PyObject *self, PyObject *other) \ |
| 3494 | { \ |
| 3495 | PyObject *a, *b; \ |
| 3496 | PyObject *result; \ |
| 3497 | PyObject *context; \ |
| 3498 | uint32_t status = 0; \ |
| 3499 | \ |
| 3500 | CURRENT_CONTEXT(context) ; \ |
| 3501 | CONVERT_BINOP(&a, &b, self, other, context); \ |
| 3502 | \ |
| 3503 | if ((result = dec_alloc()) == NULL) { \ |
| 3504 | Py_DECREF(a); \ |
| 3505 | Py_DECREF(b); \ |
| 3506 | return NULL; \ |
| 3507 | } \ |
| 3508 | \ |
| 3509 | MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ |
| 3510 | Py_DECREF(a); \ |
| 3511 | Py_DECREF(b); \ |
| 3512 | if (dec_addstatus(context, status)) { \ |
| 3513 | Py_DECREF(result); \ |
| 3514 | return NULL; \ |
| 3515 | } \ |
| 3516 | \ |
| 3517 | return result; \ |
| 3518 | } |
| 3519 | |
| 3520 | /* Boolean function without a context arg. */ |
| 3521 | #define Dec_BoolFunc(MPDFUNC) \ |
| 3522 | static PyObject * \ |
| 3523 | dec_##MPDFUNC(PyObject *self, PyObject *dummy UNUSED) \ |
| 3524 | { \ |
| 3525 | return MPDFUNC(MPD(self)) ? incr_true() : incr_false(); \ |
| 3526 | } |
| 3527 | |
| 3528 | /* Boolean function with an optional context arg. */ |
| 3529 | #define Dec_BoolFuncVA(MPDFUNC) \ |
| 3530 | static PyObject * \ |
| 3531 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3532 | { \ |
| 3533 | static char *kwlist[] = {"context", NULL}; \ |
| 3534 | PyObject *context; \ |
| 3535 | \ |
| 3536 | CURRENT_CONTEXT(context); \ |
| 3537 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, \ |
| 3538 | &context)) { \ |
| 3539 | return NULL; \ |
| 3540 | } \ |
| 3541 | CONTEXT_CHECK_VA(context); \ |
| 3542 | \ |
| 3543 | return MPDFUNC(MPD(self), CTX(context)) ? incr_true() : incr_false(); \ |
| 3544 | } |
| 3545 | |
| 3546 | /* Unary function with an optional context arg. */ |
| 3547 | #define Dec_UnaryFuncVA(MPDFUNC) \ |
| 3548 | static PyObject * \ |
| 3549 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3550 | { \ |
| 3551 | static char *kwlist[] = {"context", NULL}; \ |
| 3552 | PyObject *result; \ |
| 3553 | PyObject *context; \ |
| 3554 | uint32_t status = 0; \ |
| 3555 | \ |
| 3556 | CURRENT_CONTEXT(context); \ |
| 3557 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, \ |
| 3558 | &context)) { \ |
| 3559 | return NULL; \ |
| 3560 | } \ |
| 3561 | CONTEXT_CHECK_VA(context); \ |
| 3562 | \ |
| 3563 | if ((result = dec_alloc()) == NULL) { \ |
| 3564 | return NULL; \ |
| 3565 | } \ |
| 3566 | \ |
| 3567 | MPDFUNC(MPD(result), MPD(self), CTX(context), &status); \ |
| 3568 | if (dec_addstatus(context, status)) { \ |
| 3569 | Py_DECREF(result); \ |
| 3570 | return NULL; \ |
| 3571 | } \ |
| 3572 | \ |
| 3573 | return result; \ |
| 3574 | } |
| 3575 | |
| 3576 | /* Unary function with an optional context arg. The actual MPDFUNC |
| 3577 | only takes a status parameter. */ |
| 3578 | #define Dec_UnaryFuncVA_NO_CTX(MPDFUNC) \ |
| 3579 | static PyObject * \ |
| 3580 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3581 | { \ |
| 3582 | static char *kwlist[] = {"context", NULL}; \ |
| 3583 | PyObject *result; \ |
| 3584 | PyObject *context; \ |
| 3585 | uint32_t status = 0; \ |
| 3586 | \ |
| 3587 | CURRENT_CONTEXT(context); \ |
| 3588 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, \ |
| 3589 | &context)) { \ |
| 3590 | return NULL; \ |
| 3591 | } \ |
| 3592 | CONTEXT_CHECK_VA(context); \ |
| 3593 | \ |
| 3594 | if ((result = dec_alloc()) == NULL) { \ |
| 3595 | return NULL; \ |
| 3596 | } \ |
| 3597 | \ |
| 3598 | MPDFUNC(MPD(result), MPD(self), &status); \ |
| 3599 | if (dec_addstatus(context, status)) { \ |
| 3600 | Py_DECREF(result); \ |
| 3601 | return NULL; \ |
| 3602 | } \ |
| 3603 | \ |
| 3604 | return result; \ |
| 3605 | } |
| 3606 | |
| 3607 | /* Binary function with an optional context arg. */ |
| 3608 | #define Dec_BinaryFuncVA(MPDFUNC) \ |
| 3609 | static PyObject * \ |
| 3610 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3611 | { \ |
| 3612 | static char *kwlist[] = {"other", "context", NULL}; \ |
| 3613 | PyObject *other, *context; \ |
| 3614 | PyObject *a, *b; \ |
| 3615 | PyObject *result; \ |
| 3616 | uint32_t status = 0; \ |
| 3617 | \ |
| 3618 | CURRENT_CONTEXT(context); \ |
| 3619 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, \ |
| 3620 | &other, &context)) { \ |
| 3621 | return NULL; \ |
| 3622 | } \ |
| 3623 | CONTEXT_CHECK_VA(context); \ |
| 3624 | CONVERT_BINOP_RAISE(&a, &b, self, other, context); \ |
| 3625 | \ |
| 3626 | if ((result = dec_alloc()) == NULL) { \ |
| 3627 | Py_DECREF(a); \ |
| 3628 | Py_DECREF(b); \ |
| 3629 | return NULL; \ |
| 3630 | } \ |
| 3631 | \ |
| 3632 | MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ |
| 3633 | Py_DECREF(a); \ |
| 3634 | Py_DECREF(b); \ |
| 3635 | if (dec_addstatus(context, status)) { \ |
| 3636 | Py_DECREF(result); \ |
| 3637 | return NULL; \ |
| 3638 | } \ |
| 3639 | \ |
| 3640 | return result; \ |
| 3641 | } |
| 3642 | |
| 3643 | /* Binary function with an optional context arg. Actual MPDFUNC does |
| 3644 | NOT take a context. The context is used to record InvalidOperation |
| 3645 | if the second operand cannot be converted exactly. */ |
| 3646 | #define Dec_BinaryFuncVA_NO_CTX(MPDFUNC) \ |
| 3647 | static PyObject * \ |
| 3648 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3649 | { \ |
| 3650 | static char *kwlist[] = {"other", "context", NULL}; \ |
| 3651 | PyObject *other, *context; \ |
| 3652 | PyObject *a, *b; \ |
| 3653 | PyObject *result; \ |
| 3654 | \ |
| 3655 | CURRENT_CONTEXT(context); \ |
| 3656 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, \ |
| 3657 | &other, &context)) { \ |
| 3658 | return NULL; \ |
| 3659 | } \ |
| 3660 | CONTEXT_CHECK_VA(context); \ |
| 3661 | CONVERT_BINOP_RAISE(&a, &b, self, other, context); \ |
| 3662 | \ |
| 3663 | if ((result = dec_alloc()) == NULL) { \ |
| 3664 | Py_DECREF(a); \ |
| 3665 | Py_DECREF(b); \ |
| 3666 | return NULL; \ |
| 3667 | } \ |
| 3668 | \ |
| 3669 | MPDFUNC(MPD(result), MPD(a), MPD(b)); \ |
| 3670 | Py_DECREF(a); \ |
| 3671 | Py_DECREF(b); \ |
| 3672 | \ |
| 3673 | return result; \ |
| 3674 | } |
| 3675 | |
| 3676 | /* Ternary function with an optional context arg. */ |
| 3677 | #define Dec_TernaryFuncVA(MPDFUNC) \ |
| 3678 | static PyObject * \ |
| 3679 | dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ |
| 3680 | { \ |
| 3681 | static char *kwlist[] = {"other", "third", "context", NULL}; \ |
| 3682 | PyObject *other, *third, *context; \ |
| 3683 | PyObject *a, *b, *c; \ |
| 3684 | PyObject *result; \ |
| 3685 | uint32_t status = 0; \ |
| 3686 | \ |
| 3687 | CURRENT_CONTEXT(context); \ |
| 3688 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O", kwlist, \ |
| 3689 | &other, &third, &context)) { \ |
| 3690 | return NULL; \ |
| 3691 | } \ |
| 3692 | CONTEXT_CHECK_VA(context); \ |
| 3693 | CONVERT_TERNOP_RAISE(&a, &b, &c, self, other, third, context); \ |
| 3694 | \ |
| 3695 | if ((result = dec_alloc()) == NULL) { \ |
| 3696 | Py_DECREF(a); \ |
| 3697 | Py_DECREF(b); \ |
| 3698 | Py_DECREF(c); \ |
| 3699 | return NULL; \ |
| 3700 | } \ |
| 3701 | \ |
| 3702 | MPDFUNC(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); \ |
| 3703 | Py_DECREF(a); \ |
| 3704 | Py_DECREF(b); \ |
| 3705 | Py_DECREF(c); \ |
| 3706 | if (dec_addstatus(context, status)) { \ |
| 3707 | Py_DECREF(result); \ |
| 3708 | return NULL; \ |
| 3709 | } \ |
| 3710 | \ |
| 3711 | return result; \ |
| 3712 | } |
| 3713 | |
| 3714 | |
| 3715 | /**********************************************/ |
| 3716 | /* Number methods */ |
| 3717 | /**********************************************/ |
| 3718 | |
| 3719 | Dec_UnaryNumberMethod(mpd_qminus) |
| 3720 | Dec_UnaryNumberMethod(mpd_qplus) |
| 3721 | Dec_UnaryNumberMethod(mpd_qabs) |
| 3722 | |
| 3723 | Dec_BinaryNumberMethod(mpd_qadd) |
| 3724 | Dec_BinaryNumberMethod(mpd_qsub) |
| 3725 | Dec_BinaryNumberMethod(mpd_qmul) |
| 3726 | Dec_BinaryNumberMethod(mpd_qdiv) |
| 3727 | Dec_BinaryNumberMethod(mpd_qrem) |
| 3728 | Dec_BinaryNumberMethod(mpd_qdivint) |
| 3729 | |
| 3730 | static PyObject * |
| 3731 | nm_dec_as_long(PyObject *dec) |
| 3732 | { |
| 3733 | PyObject *context; |
| 3734 | |
| 3735 | CURRENT_CONTEXT(context); |
| 3736 | return dec_as_long(dec, context, MPD_ROUND_DOWN); |
| 3737 | } |
| 3738 | |
| 3739 | static int |
| 3740 | nm_nonzero(PyDecObject *v) |
| 3741 | { |
| 3742 | return !mpd_iszero(v->dec); |
| 3743 | } |
| 3744 | |
| 3745 | static PyObject * |
| 3746 | nm_mpd_qdivmod(PyObject *v, PyObject *w) |
| 3747 | { |
| 3748 | PyObject *a, *b; |
| 3749 | PyObject *q, *r; |
| 3750 | PyObject *context; |
| 3751 | uint32_t status = 0; |
| 3752 | PyObject *ret; |
| 3753 | |
| 3754 | CURRENT_CONTEXT(context); |
| 3755 | CONVERT_BINOP(&a, &b, v, w, context); |
| 3756 | |
| 3757 | q = dec_alloc(); |
| 3758 | if (q == NULL) { |
| 3759 | Py_DECREF(a); |
| 3760 | Py_DECREF(b); |
| 3761 | return NULL; |
| 3762 | } |
| 3763 | r = dec_alloc(); |
| 3764 | if (r == NULL) { |
| 3765 | Py_DECREF(a); |
| 3766 | Py_DECREF(b); |
| 3767 | Py_DECREF(q); |
| 3768 | return NULL; |
| 3769 | } |
| 3770 | |
| 3771 | mpd_qdivmod(MPD(q), MPD(r), MPD(a), MPD(b), CTX(context), &status); |
| 3772 | Py_DECREF(a); |
| 3773 | Py_DECREF(b); |
| 3774 | if (dec_addstatus(context, status)) { |
| 3775 | Py_DECREF(r); |
| 3776 | Py_DECREF(q); |
| 3777 | return NULL; |
| 3778 | } |
| 3779 | |
| 3780 | ret = Py_BuildValue("(OO)", q, r); |
| 3781 | Py_DECREF(r); |
| 3782 | Py_DECREF(q); |
| 3783 | return ret; |
| 3784 | } |
| 3785 | |
| 3786 | static mpd_uint_t data_zero[1] = {0}; |
| 3787 | static const mpd_t zero = {MPD_STATIC|MPD_CONST_DATA, 0, 1, 1, 1, data_zero}; |
| 3788 | |
| 3789 | static PyObject * |
| 3790 | nm_mpd_qpow(PyObject *base, PyObject *exp, PyObject *mod) |
| 3791 | { |
| 3792 | PyObject *a, *b, *c = NULL; |
| 3793 | PyObject *result; |
| 3794 | PyObject *context; |
| 3795 | uint32_t status = 0; |
| 3796 | |
| 3797 | CURRENT_CONTEXT(context); |
| 3798 | CONVERT_BINOP(&a, &b, base, exp, context); |
| 3799 | |
| 3800 | if (mod != Py_None) { |
| 3801 | if (!convert_op(NOT_IMPL, &c, mod, context)) { |
| 3802 | Py_DECREF(a); |
| 3803 | Py_DECREF(b); |
| 3804 | return c; |
| 3805 | } |
| 3806 | } |
| 3807 | |
| 3808 | result = dec_alloc(); |
| 3809 | if (result == NULL) { |
| 3810 | Py_DECREF(a); |
| 3811 | Py_DECREF(b); |
| 3812 | Py_XDECREF(c); |
| 3813 | return NULL; |
| 3814 | } |
| 3815 | |
| 3816 | if (c == NULL) { |
| 3817 | mpd_qpow(MPD(result), MPD(a), MPD(b), |
| 3818 | CTX(context), &status); |
| 3819 | } |
| 3820 | else { |
| 3821 | mpd_qpowmod(MPD(result), MPD(a), MPD(b), MPD(c), |
| 3822 | CTX(context), &status); |
| 3823 | status = (status == MPD_Clamped) ? 0 : status; |
| 3824 | /* remove ideal exponent for compatibility with decimal.py */ |
| 3825 | mpd_qquantize(MPD(result), MPD(result), &zero, |
| 3826 | CTX(context), &status); |
| 3827 | Py_DECREF(c); |
| 3828 | } |
| 3829 | Py_DECREF(a); |
| 3830 | Py_DECREF(b); |
| 3831 | if (dec_addstatus(context, status)) { |
| 3832 | Py_DECREF(result); |
| 3833 | return NULL; |
| 3834 | } |
| 3835 | |
| 3836 | return result; |
| 3837 | } |
| 3838 | |
| 3839 | |
| 3840 | /******************************************************************************/ |
| 3841 | /* Decimal Methods */ |
| 3842 | /******************************************************************************/ |
| 3843 | |
| 3844 | /* Unary arithmetic functions, optional context arg */ |
| 3845 | Dec_UnaryFuncVA(mpd_qexp) |
| 3846 | Dec_UnaryFuncVA(mpd_qln) |
| 3847 | Dec_UnaryFuncVA(mpd_qlog10) |
| 3848 | Dec_UnaryFuncVA(mpd_qnext_minus) |
| 3849 | Dec_UnaryFuncVA(mpd_qnext_plus) |
| 3850 | Dec_UnaryFuncVA(mpd_qreduce) |
| 3851 | Dec_UnaryFuncVA(mpd_qsqrt) |
| 3852 | |
| 3853 | /* Binary arithmetic functions, optional context arg */ |
| 3854 | Dec_BinaryFuncVA(mpd_qcompare) |
| 3855 | Dec_BinaryFuncVA(mpd_qcompare_signal) |
| 3856 | Dec_BinaryFuncVA(mpd_qmax) |
| 3857 | Dec_BinaryFuncVA(mpd_qmax_mag) |
| 3858 | Dec_BinaryFuncVA(mpd_qmin) |
| 3859 | Dec_BinaryFuncVA(mpd_qmin_mag) |
| 3860 | Dec_BinaryFuncVA(mpd_qnext_toward) |
| 3861 | Dec_BinaryFuncVA(mpd_qrem_near) |
| 3862 | |
| 3863 | /* Ternary arithmetic functions, optional context arg */ |
| 3864 | Dec_TernaryFuncVA(mpd_qfma) |
| 3865 | |
| 3866 | /* Boolean functions, no context arg */ |
| 3867 | Dec_BoolFunc(mpd_iscanonical) |
| 3868 | Dec_BoolFunc(mpd_isfinite) |
| 3869 | Dec_BoolFunc(mpd_isinfinite) |
| 3870 | Dec_BoolFunc(mpd_isnan) |
| 3871 | Dec_BoolFunc(mpd_isqnan) |
| 3872 | Dec_BoolFunc(mpd_issnan) |
| 3873 | Dec_BoolFunc(mpd_issigned) |
| 3874 | Dec_BoolFunc(mpd_iszero) |
| 3875 | |
| 3876 | /* Boolean functions, optional context arg */ |
| 3877 | Dec_BoolFuncVA(mpd_isnormal) |
| 3878 | Dec_BoolFuncVA(mpd_issubnormal) |
| 3879 | |
| 3880 | /* Unary functions, no context arg */ |
| 3881 | static PyObject * |
| 3882 | dec_mpd_adjexp(PyObject *self, PyObject *dummy UNUSED) |
| 3883 | { |
| 3884 | mpd_ssize_t retval; |
| 3885 | |
| 3886 | if (mpd_isspecial(MPD(self))) { |
| 3887 | retval = 0; |
| 3888 | } |
| 3889 | else { |
| 3890 | retval = mpd_adjexp(MPD(self)); |
| 3891 | } |
| 3892 | |
| 3893 | return PyLong_FromSsize_t(retval); |
| 3894 | } |
| 3895 | |
| 3896 | static PyObject * |
| 3897 | dec_canonical(PyObject *self, PyObject *dummy UNUSED) |
| 3898 | { |
| 3899 | Py_INCREF(self); |
| 3900 | return self; |
| 3901 | } |
| 3902 | |
| 3903 | static PyObject * |
| 3904 | dec_conjugate(PyObject *self, PyObject *dummy UNUSED) |
| 3905 | { |
| 3906 | Py_INCREF(self); |
| 3907 | return self; |
| 3908 | } |
| 3909 | |
| 3910 | static PyObject * |
| 3911 | dec_mpd_radix(PyObject *self UNUSED, PyObject *dummy UNUSED) |
| 3912 | { |
| 3913 | PyObject *result; |
| 3914 | |
| 3915 | result = dec_alloc(); |
| 3916 | if (result == NULL) { |
| 3917 | return NULL; |
| 3918 | } |
| 3919 | |
| 3920 | _dec_settriple(result, MPD_POS, 10, 0); |
| 3921 | return result; |
| 3922 | } |
| 3923 | |
| 3924 | /* Unary functions, optional context arg for conversion errors */ |
| 3925 | Dec_UnaryFuncVA_NO_CTX(mpd_qcopy_abs) |
| 3926 | Dec_UnaryFuncVA_NO_CTX(mpd_qcopy_negate) |
| 3927 | |
| 3928 | /* Unary functions, optional context arg */ |
| 3929 | Dec_UnaryFuncVA(mpd_qinvert) |
| 3930 | Dec_UnaryFuncVA(mpd_qlogb) |
| 3931 | |
| 3932 | static PyObject * |
| 3933 | dec_mpd_class(PyObject *self, PyObject *args, PyObject *kwds) |
| 3934 | { |
| 3935 | static char *kwlist[] = {"context", NULL}; |
| 3936 | PyObject *context; |
| 3937 | const char *cp; |
| 3938 | |
| 3939 | CURRENT_CONTEXT(context); |
| 3940 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, |
| 3941 | &context)) { |
| 3942 | return NULL; |
| 3943 | } |
| 3944 | CONTEXT_CHECK_VA(context); |
| 3945 | |
| 3946 | cp = mpd_class(MPD(self), CTX(context)); |
| 3947 | return PyUnicode_FromString(cp); |
| 3948 | } |
| 3949 | |
| 3950 | static PyObject * |
| 3951 | dec_mpd_to_eng(PyObject *self, PyObject *args, PyObject *kwds) |
| 3952 | { |
| 3953 | static char *kwlist[] = {"context", NULL}; |
| 3954 | PyObject *result; |
| 3955 | PyObject *context; |
| 3956 | mpd_ssize_t size; |
| 3957 | char *s; |
| 3958 | |
| 3959 | CURRENT_CONTEXT(context); |
| 3960 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, |
| 3961 | &context)) { |
| 3962 | return NULL; |
| 3963 | } |
| 3964 | CONTEXT_CHECK_VA(context); |
| 3965 | |
| 3966 | size = mpd_to_eng_size(&s, MPD(self), CtxCaps(context)); |
| 3967 | if (size < 0) { |
| 3968 | PyErr_NoMemory(); |
| 3969 | return NULL; |
| 3970 | } |
| 3971 | |
| 3972 | result = unicode_fromascii(s, size); |
| 3973 | mpd_free(s); |
| 3974 | |
| 3975 | return result; |
| 3976 | } |
| 3977 | |
| 3978 | /* Binary functions, optional context arg for conversion errors */ |
| 3979 | Dec_BinaryFuncVA_NO_CTX(mpd_compare_total) |
| 3980 | Dec_BinaryFuncVA_NO_CTX(mpd_compare_total_mag) |
| 3981 | |
| 3982 | static PyObject * |
| 3983 | dec_mpd_qcopy_sign(PyObject *self, PyObject *args, PyObject *kwds) |
| 3984 | { |
| 3985 | static char *kwlist[] = {"other", "context", NULL}; |
| 3986 | PyObject *other, *context; |
| 3987 | PyObject *a, *b; |
| 3988 | PyObject *result; |
| 3989 | uint32_t status = 0; |
| 3990 | |
| 3991 | CURRENT_CONTEXT(context); |
| 3992 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, |
| 3993 | &other, &context)) { |
| 3994 | return NULL; |
| 3995 | } |
| 3996 | CONTEXT_CHECK_VA(context); |
| 3997 | CONVERT_BINOP_RAISE(&a, &b, self, other, context); |
| 3998 | |
| 3999 | result = dec_alloc(); |
| 4000 | if (result == NULL) { |
| 4001 | Py_DECREF(a); |
| 4002 | Py_DECREF(b); |
| 4003 | return NULL; |
| 4004 | } |
| 4005 | |
| 4006 | mpd_qcopy_sign(MPD(result), MPD(a), MPD(b), &status); |
| 4007 | Py_DECREF(a); |
| 4008 | Py_DECREF(b); |
| 4009 | if (dec_addstatus(context, status)) { |
| 4010 | Py_DECREF(result); |
| 4011 | return NULL; |
| 4012 | } |
| 4013 | |
| 4014 | return result; |
| 4015 | } |
| 4016 | |
| 4017 | static PyObject * |
| 4018 | dec_mpd_same_quantum(PyObject *self, PyObject *args, PyObject *kwds) |
| 4019 | { |
| 4020 | static char *kwlist[] = {"other", "context", NULL}; |
| 4021 | PyObject *other, *context; |
| 4022 | PyObject *a, *b; |
| 4023 | PyObject *result; |
| 4024 | |
| 4025 | CURRENT_CONTEXT(context); |
| 4026 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, |
| 4027 | &other, &context)) { |
| 4028 | return NULL; |
| 4029 | } |
| 4030 | CONTEXT_CHECK_VA(context); |
| 4031 | CONVERT_BINOP_RAISE(&a, &b, self, other, context); |
| 4032 | |
| 4033 | result = mpd_same_quantum(MPD(a), MPD(b)) ? incr_true() : incr_false(); |
| 4034 | Py_DECREF(a); |
| 4035 | Py_DECREF(b); |
| 4036 | |
| 4037 | return result; |
| 4038 | } |
| 4039 | |
| 4040 | /* Binary functions, optional context arg */ |
| 4041 | Dec_BinaryFuncVA(mpd_qand) |
| 4042 | Dec_BinaryFuncVA(mpd_qor) |
| 4043 | Dec_BinaryFuncVA(mpd_qxor) |
| 4044 | |
| 4045 | Dec_BinaryFuncVA(mpd_qrotate) |
| 4046 | Dec_BinaryFuncVA(mpd_qscaleb) |
| 4047 | Dec_BinaryFuncVA(mpd_qshift) |
| 4048 | |
| 4049 | static PyObject * |
| 4050 | dec_mpd_qquantize(PyObject *v, PyObject *args, PyObject *kwds) |
| 4051 | { |
| 4052 | static char *kwlist[] = {"exp", "rounding", "context", NULL}; |
| 4053 | PyObject *w, *context; |
| 4054 | PyObject *a, *b; |
| 4055 | PyObject *result; |
| 4056 | uint32_t status = 0; |
| 4057 | mpd_context_t workctx; |
| 4058 | int round = -1; |
| 4059 | |
| 4060 | CURRENT_CONTEXT(context); |
| 4061 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|iO", kwlist, |
| 4062 | &w, &round, &context)) { |
| 4063 | return NULL; |
| 4064 | } |
| 4065 | CONTEXT_CHECK_VA(context); |
| 4066 | |
| 4067 | workctx = *CTX(context); |
| 4068 | if (round >= 0) { |
| 4069 | if (!mpd_qsetround(&workctx, round)) { |
| 4070 | return type_error_ptr(invalid_rounding_err); |
| 4071 | } |
| 4072 | } |
| 4073 | |
| 4074 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); |
| 4075 | |
| 4076 | result = dec_alloc(); |
| 4077 | if (result == NULL) { |
| 4078 | Py_DECREF(a); |
| 4079 | Py_DECREF(b); |
| 4080 | return NULL; |
| 4081 | } |
| 4082 | |
| 4083 | mpd_qquantize(MPD(result), MPD(a), MPD(b), &workctx, &status); |
| 4084 | Py_DECREF(a); |
| 4085 | Py_DECREF(b); |
| 4086 | if (dec_addstatus(context, status)) { |
| 4087 | Py_DECREF(result); |
| 4088 | return NULL; |
| 4089 | } |
| 4090 | |
| 4091 | return result; |
| 4092 | } |
| 4093 | |
| 4094 | /* Special methods */ |
| 4095 | static PyObject * |
| 4096 | dec_richcompare(PyObject *v, PyObject *w, int op) |
| 4097 | { |
| 4098 | PyObject *a; |
| 4099 | PyObject *b; |
| 4100 | PyObject *context; |
| 4101 | uint32_t status = 0; |
| 4102 | int a_issnan, b_issnan; |
| 4103 | int r; |
| 4104 | |
| 4105 | assert(PyDec_Check(v)); |
| 4106 | |
| 4107 | CURRENT_CONTEXT(context); |
| 4108 | CONVERT_BINOP_CMP(&a, &b, v, w, op, context); |
| 4109 | |
| 4110 | a_issnan = mpd_issnan(MPD(a)); |
| 4111 | b_issnan = mpd_issnan(MPD(b)); |
| 4112 | |
| 4113 | r = mpd_qcmp(MPD(a), MPD(b), &status); |
| 4114 | Py_DECREF(a); |
| 4115 | Py_DECREF(b); |
| 4116 | if (r == INT_MAX) { |
| 4117 | /* sNaNs or op={le,ge,lt,gt} always signal. */ |
| 4118 | if (a_issnan || b_issnan || (op != Py_EQ && op != Py_NE)) { |
| 4119 | if (dec_addstatus(context, status)) { |
| 4120 | return NULL; |
| 4121 | } |
| 4122 | } |
| 4123 | /* qNaN comparison with op={eq,ne} or comparison |
| 4124 | * with InvalidOperation disabled. */ |
| 4125 | return (op == Py_NE) ? incr_true() : incr_false(); |
| 4126 | } |
| 4127 | |
| 4128 | switch (op) { |
| 4129 | case Py_EQ: |
| 4130 | r = (r == 0); |
| 4131 | break; |
| 4132 | case Py_NE: |
| 4133 | r = (r != 0); |
| 4134 | break; |
| 4135 | case Py_LE: |
| 4136 | r = (r <= 0); |
| 4137 | break; |
| 4138 | case Py_GE: |
| 4139 | r = (r >= 0); |
| 4140 | break; |
| 4141 | case Py_LT: |
| 4142 | r = (r == -1); |
| 4143 | break; |
| 4144 | case Py_GT: |
| 4145 | r = (r == 1); |
| 4146 | break; |
| 4147 | } |
| 4148 | |
| 4149 | return PyBool_FromLong(r); |
| 4150 | } |
| 4151 | |
| 4152 | /* __ceil__ */ |
| 4153 | static PyObject * |
| 4154 | dec_ceil(PyObject *self, PyObject *dummy UNUSED) |
| 4155 | { |
| 4156 | PyObject *context; |
| 4157 | |
| 4158 | CURRENT_CONTEXT(context); |
| 4159 | return dec_as_long(self, context, MPD_ROUND_CEILING); |
| 4160 | } |
| 4161 | |
| 4162 | /* __complex__ */ |
| 4163 | static PyObject * |
| 4164 | dec_complex(PyObject *self, PyObject *dummy UNUSED) |
| 4165 | { |
| 4166 | PyObject *f; |
| 4167 | double x; |
| 4168 | |
| 4169 | f = PyDec_AsFloat(self); |
| 4170 | if (f == NULL) { |
| 4171 | return NULL; |
| 4172 | } |
| 4173 | |
| 4174 | x = PyFloat_AsDouble(f); |
| 4175 | Py_DECREF(f); |
| 4176 | if (x == -1.0 && PyErr_Occurred()) { |
| 4177 | return NULL; |
| 4178 | } |
| 4179 | |
| 4180 | return PyComplex_FromDoubles(x, 0); |
| 4181 | } |
| 4182 | |
| 4183 | /* __copy__ and __deepcopy__ */ |
| 4184 | static PyObject * |
| 4185 | dec_copy(PyObject *self, PyObject *dummy UNUSED) |
| 4186 | { |
| 4187 | Py_INCREF(self); |
| 4188 | return self; |
| 4189 | } |
| 4190 | |
| 4191 | /* __floor__ */ |
| 4192 | static PyObject * |
| 4193 | dec_floor(PyObject *self, PyObject *dummy UNUSED) |
| 4194 | { |
| 4195 | PyObject *context; |
| 4196 | |
| 4197 | CURRENT_CONTEXT(context); |
| 4198 | return dec_as_long(self, context, MPD_ROUND_FLOOR); |
| 4199 | } |
| 4200 | |
| 4201 | /* Always uses the module context */ |
| 4202 | static Py_hash_t |
| 4203 | dec_hash(PyObject *v) |
| 4204 | { |
| 4205 | #if defined(CONFIG_64) && _PyHASH_BITS == 61 |
| 4206 | /* 2**61 - 1 */ |
| 4207 | mpd_uint_t p_data[1] = {2305843009213693951ULL}; |
| 4208 | mpd_t p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 19, 1, 1, p_data}; |
| 4209 | /* Inverse of 10 modulo p */ |
| 4210 | mpd_uint_t inv10_p_data[2] = {2075258708292324556ULL}; |
| 4211 | mpd_t inv10_p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, |
| 4212 | 0, 19, 1, 1, inv10_p_data}; |
| 4213 | #elif defined(CONFIG_32) && _PyHASH_BITS == 31 |
| 4214 | /* 2**31 - 1 */ |
| 4215 | mpd_uint_t p_data[2] = {147483647UL, 2}; |
| 4216 | mpd_t p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 10, 2, 2, p_data}; |
| 4217 | /* Inverse of 10 modulo p */ |
| 4218 | mpd_uint_t inv10_p_data[2] = {503238553UL, 1}; |
| 4219 | mpd_t inv10_p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, |
| 4220 | 0, 10, 2, 2, inv10_p_data}; |
| 4221 | #else |
| 4222 | #error "No valid combination of CONFIG_64, CONFIG_32 and _PyHASH_BITS" |
| 4223 | #endif |
| 4224 | const Py_hash_t py_hash_inf = 314159; |
| 4225 | const Py_hash_t py_hash_nan = 0; |
| 4226 | mpd_uint_t ten_data[1] = {10}; |
| 4227 | mpd_t ten = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, |
| 4228 | 0, 2, 1, 1, ten_data}; |
| 4229 | Py_hash_t result; |
| 4230 | mpd_t *exp_hash = NULL; |
| 4231 | mpd_t *tmp = NULL; |
| 4232 | mpd_ssize_t exp; |
| 4233 | uint32_t status = 0; |
| 4234 | mpd_context_t maxctx; |
| 4235 | PyObject *context; |
| 4236 | |
| 4237 | |
| 4238 | context = current_context(); |
| 4239 | if (context == NULL) { |
| 4240 | return -1; |
| 4241 | } |
| 4242 | |
| 4243 | if (mpd_isspecial(MPD(v))) { |
| 4244 | if (mpd_issnan(MPD(v))) { |
| 4245 | PyErr_SetString(PyExc_TypeError, |
| 4246 | "Cannot hash a signaling NaN value"); |
| 4247 | return -1; |
| 4248 | } |
| 4249 | else if (mpd_isnan(MPD(v))) { |
| 4250 | return py_hash_nan; |
| 4251 | } |
| 4252 | else { |
| 4253 | return py_hash_inf * mpd_arith_sign(MPD(v)); |
| 4254 | } |
| 4255 | } |
| 4256 | |
| 4257 | mpd_maxcontext(&maxctx); |
| 4258 | exp_hash = mpd_qnew(); |
| 4259 | if (exp_hash == NULL) { |
| 4260 | goto malloc_error; |
| 4261 | } |
| 4262 | tmp = mpd_qnew(); |
| 4263 | if (tmp == NULL) { |
| 4264 | goto malloc_error; |
| 4265 | } |
| 4266 | |
| 4267 | /* |
| 4268 | * exp(v): exponent of v |
| 4269 | * int(v): coefficient of v |
| 4270 | */ |
| 4271 | exp = MPD(v)->exp; |
| 4272 | if (exp >= 0) { |
| 4273 | /* 10**exp(v) % p */ |
| 4274 | mpd_qsset_ssize(tmp, exp, &maxctx, &status); |
| 4275 | mpd_qpowmod(exp_hash, &ten, tmp, &p, &maxctx, &status); |
| 4276 | } |
| 4277 | else { |
| 4278 | /* inv10_p**(-exp(v)) % p */ |
| 4279 | mpd_qsset_ssize(tmp, -exp, &maxctx, &status); |
| 4280 | mpd_qpowmod(exp_hash, &inv10_p, tmp, &p, &maxctx, &status); |
| 4281 | } |
| 4282 | |
| 4283 | /* hash = (int(v) * exp_hash) % p */ |
| 4284 | if (!mpd_qcopy(tmp, MPD(v), &status)) { |
| 4285 | goto malloc_error; |
| 4286 | } |
| 4287 | tmp->exp = 0; |
| 4288 | mpd_set_positive(tmp); |
| 4289 | mpd_qmul(tmp, tmp, exp_hash, &maxctx, &status); |
| 4290 | mpd_qrem(tmp, tmp, &p, &maxctx, &status); |
| 4291 | |
| 4292 | result = mpd_qget_ssize(tmp, &status); |
| 4293 | result = mpd_ispositive(MPD(v)) ? result : -result; |
| 4294 | result = (result == -1) ? -2 : result; |
| 4295 | |
| 4296 | if (status != 0) { |
| 4297 | status |= MPD_Invalid_operation; |
| 4298 | if (dec_addstatus(context, status)) { |
| 4299 | result = -1; |
| 4300 | goto finish; |
| 4301 | } |
| 4302 | } |
| 4303 | |
| 4304 | |
| 4305 | finish: |
| 4306 | if (exp_hash) mpd_del(exp_hash); |
| 4307 | if (tmp) mpd_del(tmp); |
| 4308 | return result; |
| 4309 | |
| 4310 | malloc_error: |
| 4311 | PyErr_NoMemory(); |
| 4312 | result = -1; |
| 4313 | goto finish; |
| 4314 | } |
| 4315 | |
| 4316 | /* __reduce__ */ |
| 4317 | static PyObject * |
| 4318 | dec_reduce(PyObject *self, PyObject *dummy UNUSED) |
| 4319 | { |
| 4320 | PyObject *result, *str; |
| 4321 | |
| 4322 | str = dec_str(self); |
| 4323 | if (str == NULL) { |
| 4324 | return NULL; |
| 4325 | } |
| 4326 | |
| 4327 | result = Py_BuildValue("O(O)", Py_TYPE(self), str); |
| 4328 | Py_DECREF(str); |
| 4329 | |
| 4330 | return result; |
| 4331 | } |
| 4332 | |
| 4333 | /* __trunc__ */ |
| 4334 | static PyObject * |
| 4335 | dec_trunc(PyObject *self, PyObject *dummy UNUSED) |
| 4336 | { |
| 4337 | PyObject *context; |
| 4338 | |
| 4339 | CURRENT_CONTEXT(context); |
| 4340 | return dec_as_long(self, context, MPD_ROUND_DOWN); |
| 4341 | } |
| 4342 | |
| 4343 | /* real and imag */ |
| 4344 | static PyObject * |
| 4345 | dec_real(PyObject *self, void *closure UNUSED) |
| 4346 | { |
| 4347 | Py_INCREF(self); |
| 4348 | return self; |
| 4349 | } |
| 4350 | |
| 4351 | static PyObject * |
| 4352 | dec_imag(PyObject *self UNUSED, void *closure UNUSED) |
| 4353 | { |
| 4354 | PyObject *result; |
| 4355 | |
| 4356 | result = dec_alloc(); |
| 4357 | if (result == NULL) { |
| 4358 | return NULL; |
| 4359 | } |
| 4360 | |
| 4361 | _dec_settriple(result, MPD_POS, 0, 0); |
| 4362 | return result; |
| 4363 | } |
| 4364 | |
| 4365 | |
| 4366 | static PyGetSetDef dec_getsets [] = |
| 4367 | { |
| 4368 | { "real", (getter)dec_real, NULL, NULL, NULL}, |
| 4369 | { "imag", (getter)dec_imag, NULL, NULL, NULL}, |
| 4370 | {NULL} |
| 4371 | }; |
| 4372 | |
| 4373 | static PyNumberMethods dec_number_methods = |
| 4374 | { |
| 4375 | (binaryfunc) nm_mpd_qadd, |
| 4376 | (binaryfunc) nm_mpd_qsub, |
| 4377 | (binaryfunc) nm_mpd_qmul, |
| 4378 | (binaryfunc) nm_mpd_qrem, |
| 4379 | (binaryfunc) nm_mpd_qdivmod, |
| 4380 | (ternaryfunc) nm_mpd_qpow, |
| 4381 | (unaryfunc) nm_mpd_qminus, |
| 4382 | (unaryfunc) nm_mpd_qplus, |
| 4383 | (unaryfunc) nm_mpd_qabs, |
| 4384 | (inquiry) nm_nonzero, |
| 4385 | (unaryfunc) 0, /* no bit-complement */ |
| 4386 | (binaryfunc) 0, /* no shiftl */ |
| 4387 | (binaryfunc) 0, /* no shiftr */ |
| 4388 | (binaryfunc) 0, /* no bit-and */ |
| 4389 | (binaryfunc) 0, /* no bit-xor */ |
| 4390 | (binaryfunc) 0, /* no bit-ior */ |
| 4391 | (unaryfunc) nm_dec_as_long, |
| 4392 | 0, /* nb_reserved */ |
| 4393 | (unaryfunc) PyDec_AsFloat, |
| 4394 | 0, /* binaryfunc nb_inplace_add; */ |
| 4395 | 0, /* binaryfunc nb_inplace_subtract; */ |
| 4396 | 0, /* binaryfunc nb_inplace_multiply; */ |
| 4397 | 0, /* binaryfunc nb_inplace_remainder; */ |
| 4398 | 0, /* ternaryfunc nb_inplace_power; */ |
| 4399 | 0, /* binaryfunc nb_inplace_lshift; */ |
| 4400 | 0, /* binaryfunc nb_inplace_rshift; */ |
| 4401 | 0, /* binaryfunc nb_inplace_and; */ |
| 4402 | 0, /* binaryfunc nb_inplace_xor; */ |
| 4403 | 0, /* binaryfunc nb_inplace_or; */ |
| 4404 | (binaryfunc) nm_mpd_qdivint, /* binaryfunc nb_floor_divide; */ |
| 4405 | (binaryfunc) nm_mpd_qdiv, /* binaryfunc nb_true_divide; */ |
| 4406 | 0, /* binaryfunc nb_inplace_floor_divide; */ |
| 4407 | 0, /* binaryfunc nb_inplace_true_divide; */ |
| 4408 | }; |
| 4409 | |
| 4410 | static PyMethodDef dec_methods [] = |
| 4411 | { |
| 4412 | /* Unary arithmetic functions, optional context arg */ |
| 4413 | { "exp", (PyCFunction)dec_mpd_qexp, METH_VARARGS|METH_KEYWORDS, doc_exp }, |
| 4414 | { "ln", (PyCFunction)dec_mpd_qln, METH_VARARGS|METH_KEYWORDS, doc_ln }, |
| 4415 | { "log10", (PyCFunction)dec_mpd_qlog10, METH_VARARGS|METH_KEYWORDS, doc_log10 }, |
| 4416 | { "next_minus", (PyCFunction)dec_mpd_qnext_minus, METH_VARARGS|METH_KEYWORDS, doc_next_minus }, |
| 4417 | { "next_plus", (PyCFunction)dec_mpd_qnext_plus, METH_VARARGS|METH_KEYWORDS, doc_next_plus }, |
| 4418 | { "normalize", (PyCFunction)dec_mpd_qreduce, METH_VARARGS|METH_KEYWORDS, doc_normalize }, |
| 4419 | { "to_integral", (PyCFunction)PyDec_ToIntegralValue, METH_VARARGS|METH_KEYWORDS, doc_to_integral }, |
| 4420 | { "to_integral_exact", (PyCFunction)PyDec_ToIntegralExact, METH_VARARGS|METH_KEYWORDS, doc_to_integral_exact }, |
| 4421 | { "to_integral_value", (PyCFunction)PyDec_ToIntegralValue, METH_VARARGS|METH_KEYWORDS, doc_to_integral_value }, |
| 4422 | { "sqrt", (PyCFunction)dec_mpd_qsqrt, METH_VARARGS|METH_KEYWORDS, doc_sqrt }, |
| 4423 | |
| 4424 | /* Binary arithmetic functions, optional context arg */ |
| 4425 | { "compare", (PyCFunction)dec_mpd_qcompare, METH_VARARGS|METH_KEYWORDS, doc_compare }, |
| 4426 | { "compare_signal", (PyCFunction)dec_mpd_qcompare_signal, METH_VARARGS|METH_KEYWORDS, doc_compare_signal }, |
| 4427 | { "max", (PyCFunction)dec_mpd_qmax, METH_VARARGS|METH_KEYWORDS, doc_max }, |
| 4428 | { "max_mag", (PyCFunction)dec_mpd_qmax_mag, METH_VARARGS|METH_KEYWORDS, doc_max_mag }, |
| 4429 | { "min", (PyCFunction)dec_mpd_qmin, METH_VARARGS|METH_KEYWORDS, doc_min }, |
| 4430 | { "min_mag", (PyCFunction)dec_mpd_qmin_mag, METH_VARARGS|METH_KEYWORDS, doc_min_mag }, |
| 4431 | { "next_toward", (PyCFunction)dec_mpd_qnext_toward, METH_VARARGS|METH_KEYWORDS, doc_next_toward }, |
| 4432 | { "quantize", (PyCFunction)dec_mpd_qquantize, METH_VARARGS|METH_KEYWORDS, doc_quantize }, |
| 4433 | { "remainder_near", (PyCFunction)dec_mpd_qrem_near, METH_VARARGS|METH_KEYWORDS, doc_remainder_near }, |
| 4434 | |
| 4435 | /* Ternary arithmetic functions, optional context arg */ |
| 4436 | { "fma", (PyCFunction)dec_mpd_qfma, METH_VARARGS|METH_KEYWORDS, doc_fma }, |
| 4437 | |
| 4438 | /* Boolean functions, no context arg */ |
| 4439 | { "is_canonical", dec_mpd_iscanonical, METH_NOARGS, doc_is_canonical }, |
| 4440 | { "is_finite", dec_mpd_isfinite, METH_NOARGS, doc_is_finite }, |
| 4441 | { "is_infinite", dec_mpd_isinfinite, METH_NOARGS, doc_is_infinite }, |
| 4442 | { "is_nan", dec_mpd_isnan, METH_NOARGS, doc_is_nan }, |
| 4443 | { "is_qnan", dec_mpd_isqnan, METH_NOARGS, doc_is_qnan }, |
| 4444 | { "is_snan", dec_mpd_issnan, METH_NOARGS, doc_is_snan }, |
| 4445 | { "is_signed", dec_mpd_issigned, METH_NOARGS, doc_is_signed }, |
| 4446 | { "is_zero", dec_mpd_iszero, METH_NOARGS, doc_is_zero }, |
| 4447 | |
| 4448 | /* Boolean functions, optional context arg */ |
| 4449 | { "is_normal", (PyCFunction)dec_mpd_isnormal, METH_VARARGS|METH_KEYWORDS, doc_is_normal }, |
| 4450 | { "is_subnormal", (PyCFunction)dec_mpd_issubnormal, METH_VARARGS|METH_KEYWORDS, doc_is_subnormal }, |
| 4451 | |
| 4452 | /* Unary functions, no context arg */ |
| 4453 | { "adjusted", dec_mpd_adjexp, METH_NOARGS, doc_adjusted }, |
| 4454 | { "canonical", dec_canonical, METH_NOARGS, doc_canonical }, |
| 4455 | { "conjugate", dec_conjugate, METH_NOARGS, doc_conjugate }, |
| 4456 | { "radix", dec_mpd_radix, METH_NOARGS, doc_radix }, |
| 4457 | |
| 4458 | /* Unary functions, optional context arg for conversion errors */ |
| 4459 | { "copy_abs", (PyCFunction)dec_mpd_qcopy_abs, METH_VARARGS|METH_KEYWORDS, doc_copy_abs }, |
| 4460 | { "copy_negate", (PyCFunction)dec_mpd_qcopy_negate, METH_VARARGS|METH_KEYWORDS, doc_copy_negate }, |
| 4461 | |
| 4462 | /* Unary functions, optional context arg */ |
| 4463 | { "logb", (PyCFunction)dec_mpd_qlogb, METH_VARARGS|METH_KEYWORDS, doc_logb }, |
| 4464 | { "logical_invert", (PyCFunction)dec_mpd_qinvert, METH_VARARGS|METH_KEYWORDS, doc_logical_invert }, |
| 4465 | { "number_class", (PyCFunction)dec_mpd_class, METH_VARARGS|METH_KEYWORDS, doc_number_class }, |
| 4466 | { "to_eng_string", (PyCFunction)dec_mpd_to_eng, METH_VARARGS|METH_KEYWORDS, doc_to_eng_string }, |
| 4467 | |
| 4468 | /* Binary functions, optional context arg for conversion errors */ |
| 4469 | { "compare_total", (PyCFunction)dec_mpd_compare_total, METH_VARARGS|METH_KEYWORDS, doc_compare_total }, |
| 4470 | { "compare_total_mag", (PyCFunction)dec_mpd_compare_total_mag, METH_VARARGS|METH_KEYWORDS, doc_compare_total_mag }, |
| 4471 | { "copy_sign", (PyCFunction)dec_mpd_qcopy_sign, METH_VARARGS|METH_KEYWORDS, doc_copy_sign }, |
| 4472 | { "same_quantum", (PyCFunction)dec_mpd_same_quantum, METH_VARARGS|METH_KEYWORDS, doc_same_quantum }, |
| 4473 | |
| 4474 | /* Binary functions, optional context arg */ |
| 4475 | { "logical_and", (PyCFunction)dec_mpd_qand, METH_VARARGS|METH_KEYWORDS, doc_logical_and }, |
| 4476 | { "logical_or", (PyCFunction)dec_mpd_qor, METH_VARARGS|METH_KEYWORDS, doc_logical_or }, |
| 4477 | { "logical_xor", (PyCFunction)dec_mpd_qxor, METH_VARARGS|METH_KEYWORDS, doc_logical_xor }, |
| 4478 | { "rotate", (PyCFunction)dec_mpd_qrotate, METH_VARARGS|METH_KEYWORDS, doc_rotate }, |
| 4479 | { "scaleb", (PyCFunction)dec_mpd_qscaleb, METH_VARARGS|METH_KEYWORDS, doc_scaleb }, |
| 4480 | { "shift", (PyCFunction)dec_mpd_qshift, METH_VARARGS|METH_KEYWORDS, doc_shift }, |
| 4481 | |
| 4482 | /* Miscellaneous */ |
| 4483 | { "from_float", dec_from_float, METH_O|METH_CLASS, doc_from_float }, |
| 4484 | { "as_tuple", PyDec_AsTuple, METH_NOARGS, doc_as_tuple }, |
| 4485 | |
| 4486 | /* Special methods */ |
| 4487 | { "__copy__", dec_copy, METH_NOARGS, NULL }, |
| 4488 | { "__deepcopy__", dec_copy, METH_O, NULL }, |
| 4489 | { "__format__", dec_format, METH_VARARGS, NULL }, |
| 4490 | { "__reduce__", dec_reduce, METH_NOARGS, NULL }, |
| 4491 | { "__round__", PyDec_Round, METH_VARARGS, NULL }, |
| 4492 | { "__ceil__", dec_ceil, METH_NOARGS, NULL }, |
| 4493 | { "__floor__", dec_floor, METH_NOARGS, NULL }, |
| 4494 | { "__trunc__", dec_trunc, METH_NOARGS, NULL }, |
| 4495 | { "__complex__", dec_complex, METH_NOARGS, NULL }, |
| 4496 | |
| 4497 | { NULL, NULL, 1 } |
| 4498 | }; |
| 4499 | |
| 4500 | static PyTypeObject PyDec_Type = |
| 4501 | { |
| 4502 | PyVarObject_HEAD_INIT(NULL, 0) |
| 4503 | "decimal.Decimal", /* tp_name */ |
| 4504 | sizeof(PyDecObject), /* tp_basicsize */ |
| 4505 | 0, /* tp_itemsize */ |
| 4506 | (destructor) dec_dealloc, /* tp_dealloc */ |
| 4507 | 0, /* tp_print */ |
| 4508 | (getattrfunc) 0, /* tp_getattr */ |
| 4509 | (setattrfunc) 0, /* tp_setattr */ |
| 4510 | 0, /* tp_reserved */ |
| 4511 | (reprfunc) dec_repr, /* tp_repr */ |
| 4512 | &dec_number_methods, /* tp_as_number */ |
| 4513 | 0, /* tp_as_sequence */ |
| 4514 | 0, /* tp_as_mapping */ |
| 4515 | (hashfunc) dec_hash, /* tp_hash */ |
| 4516 | 0, /* tp_call */ |
| 4517 | (reprfunc) dec_str, /* tp_str */ |
| 4518 | (getattrofunc) PyObject_GenericGetAttr, /* tp_getattro */ |
| 4519 | (setattrofunc) 0, /* tp_setattro */ |
| 4520 | (PyBufferProcs *) 0, /* tp_as_buffer */ |
| 4521 | (Py_TPFLAGS_DEFAULT| |
| 4522 | Py_TPFLAGS_BASETYPE), /* tp_flags */ |
| 4523 | doc_decimal, /* tp_doc */ |
| 4524 | 0, /* tp_traverse */ |
| 4525 | 0, /* tp_clear */ |
| 4526 | dec_richcompare, /* tp_richcompare */ |
| 4527 | 0, /* tp_weaklistoffset */ |
| 4528 | 0, /* tp_iter */ |
| 4529 | 0, /* tp_iternext */ |
| 4530 | dec_methods, /* tp_methods */ |
| 4531 | 0, /* tp_members */ |
| 4532 | dec_getsets, /* tp_getset */ |
| 4533 | 0, /* tp_base */ |
| 4534 | 0, /* tp_dict */ |
| 4535 | 0, /* tp_descr_get */ |
| 4536 | 0, /* tp_descr_set */ |
| 4537 | 0, /* tp_dictoffset */ |
| 4538 | 0, /* tp_init */ |
| 4539 | 0, /* tp_alloc */ |
| 4540 | dec_new, /* tp_new */ |
| 4541 | PyObject_Del, /* tp_free */ |
| 4542 | }; |
| 4543 | |
| 4544 | |
| 4545 | /******************************************************************************/ |
| 4546 | /* Context Object, Part 2 */ |
| 4547 | /******************************************************************************/ |
| 4548 | |
| 4549 | |
| 4550 | /************************************************************************/ |
| 4551 | /* Macros for converting mpdecimal functions to Context methods */ |
| 4552 | /************************************************************************/ |
| 4553 | |
| 4554 | /* Boolean context method. */ |
| 4555 | #define DecCtx_BoolFunc(MPDFUNC) \ |
| 4556 | static PyObject * \ |
| 4557 | ctx_##MPDFUNC(PyObject *context, PyObject *v) \ |
| 4558 | { \ |
| 4559 | PyObject *ret; \ |
| 4560 | PyObject *a; \ |
| 4561 | \ |
| 4562 | CONVERT_OP_RAISE(&a, v, context); \ |
| 4563 | \ |
| 4564 | ret = MPDFUNC(MPD(a), CTX(context)) ? incr_true() : incr_false(); \ |
| 4565 | Py_DECREF(a); \ |
| 4566 | return ret; \ |
| 4567 | } |
| 4568 | |
| 4569 | /* Boolean context method. MPDFUNC does NOT use a context. */ |
| 4570 | #define DecCtx_BoolFunc_NO_CTX(MPDFUNC) \ |
| 4571 | static PyObject * \ |
| 4572 | ctx_##MPDFUNC(PyObject *context, PyObject *v) \ |
| 4573 | { \ |
| 4574 | PyObject *ret; \ |
| 4575 | PyObject *a; \ |
| 4576 | \ |
| 4577 | CONVERT_OP_RAISE(&a, v, context); \ |
| 4578 | \ |
| 4579 | ret = MPDFUNC(MPD(a)) ? incr_true() : incr_false(); \ |
| 4580 | Py_DECREF(a); \ |
| 4581 | return ret; \ |
| 4582 | } |
| 4583 | |
| 4584 | /* Unary context method. */ |
| 4585 | #define DecCtx_UnaryFunc(MPDFUNC) \ |
| 4586 | static PyObject * \ |
| 4587 | ctx_##MPDFUNC(PyObject *context, PyObject *v) \ |
| 4588 | { \ |
| 4589 | PyObject *result, *a; \ |
| 4590 | uint32_t status = 0; \ |
| 4591 | \ |
| 4592 | CONVERT_OP_RAISE(&a, v, context); \ |
| 4593 | \ |
| 4594 | if ((result = dec_alloc()) == NULL) { \ |
| 4595 | Py_DECREF(a); \ |
| 4596 | return NULL; \ |
| 4597 | } \ |
| 4598 | \ |
| 4599 | MPDFUNC(MPD(result), MPD(a), CTX(context), &status); \ |
| 4600 | Py_DECREF(a); \ |
| 4601 | if (dec_addstatus(context, status)) { \ |
| 4602 | Py_DECREF(result); \ |
| 4603 | return NULL; \ |
| 4604 | } \ |
| 4605 | \ |
| 4606 | return result; \ |
| 4607 | } |
| 4608 | |
| 4609 | /* Binary context method. */ |
| 4610 | #define DecCtx_BinaryFunc(MPDFUNC) \ |
| 4611 | static PyObject * \ |
| 4612 | ctx_##MPDFUNC(PyObject *context, PyObject *args) \ |
| 4613 | { \ |
| 4614 | PyObject *v, *w; \ |
| 4615 | PyObject *a, *b; \ |
| 4616 | PyObject *result; \ |
| 4617 | uint32_t status = 0; \ |
| 4618 | \ |
| 4619 | if (!PyArg_ParseTuple(args, "OO", &v, &w)) { \ |
| 4620 | return NULL; \ |
| 4621 | } \ |
| 4622 | \ |
| 4623 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); \ |
| 4624 | \ |
| 4625 | if ((result = dec_alloc()) == NULL) { \ |
| 4626 | Py_DECREF(a); \ |
| 4627 | Py_DECREF(b); \ |
| 4628 | return NULL; \ |
| 4629 | } \ |
| 4630 | \ |
| 4631 | MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ |
| 4632 | Py_DECREF(a); \ |
| 4633 | Py_DECREF(b); \ |
| 4634 | if (dec_addstatus(context, status)) { \ |
| 4635 | Py_DECREF(result); \ |
| 4636 | return NULL; \ |
| 4637 | } \ |
| 4638 | \ |
| 4639 | return result; \ |
| 4640 | } |
| 4641 | |
| 4642 | /* |
| 4643 | * Binary context method. The context is only used for conversion. |
| 4644 | * The actual MPDFUNC does NOT take a context arg. |
| 4645 | */ |
| 4646 | #define DecCtx_BinaryFunc_NO_CTX(MPDFUNC) \ |
| 4647 | static PyObject * \ |
| 4648 | ctx_##MPDFUNC(PyObject *context, PyObject *args) \ |
| 4649 | { \ |
| 4650 | PyObject *v, *w; \ |
| 4651 | PyObject *a, *b; \ |
| 4652 | PyObject *result; \ |
| 4653 | \ |
| 4654 | if (!PyArg_ParseTuple(args, "OO", &v, &w)) { \ |
| 4655 | return NULL; \ |
| 4656 | } \ |
| 4657 | \ |
| 4658 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); \ |
| 4659 | \ |
| 4660 | if ((result = dec_alloc()) == NULL) { \ |
| 4661 | Py_DECREF(a); \ |
| 4662 | Py_DECREF(b); \ |
| 4663 | return NULL; \ |
| 4664 | } \ |
| 4665 | \ |
| 4666 | MPDFUNC(MPD(result), MPD(a), MPD(b)); \ |
| 4667 | Py_DECREF(a); \ |
| 4668 | Py_DECREF(b); \ |
| 4669 | \ |
| 4670 | return result; \ |
| 4671 | } |
| 4672 | |
| 4673 | /* Ternary context method. */ |
| 4674 | #define DecCtx_TernaryFunc(MPDFUNC) \ |
| 4675 | static PyObject * \ |
| 4676 | ctx_##MPDFUNC(PyObject *context, PyObject *args) \ |
| 4677 | { \ |
| 4678 | PyObject *v, *w, *x; \ |
| 4679 | PyObject *a, *b, *c; \ |
| 4680 | PyObject *result; \ |
| 4681 | uint32_t status = 0; \ |
| 4682 | \ |
| 4683 | if (!PyArg_ParseTuple(args, "OOO", &v, &w, &x)) { \ |
| 4684 | return NULL; \ |
| 4685 | } \ |
| 4686 | \ |
| 4687 | CONVERT_TERNOP_RAISE(&a, &b, &c, v, w, x, context); \ |
| 4688 | \ |
| 4689 | if ((result = dec_alloc()) == NULL) { \ |
| 4690 | Py_DECREF(a); \ |
| 4691 | Py_DECREF(b); \ |
| 4692 | Py_DECREF(c); \ |
| 4693 | return NULL; \ |
| 4694 | } \ |
| 4695 | \ |
| 4696 | MPDFUNC(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); \ |
| 4697 | Py_DECREF(a); \ |
| 4698 | Py_DECREF(b); \ |
| 4699 | Py_DECREF(c); \ |
| 4700 | if (dec_addstatus(context, status)) { \ |
| 4701 | Py_DECREF(result); \ |
| 4702 | return NULL; \ |
| 4703 | } \ |
| 4704 | \ |
| 4705 | return result; \ |
| 4706 | } |
| 4707 | |
| 4708 | |
| 4709 | /* Unary arithmetic functions */ |
| 4710 | DecCtx_UnaryFunc(mpd_qabs) |
| 4711 | DecCtx_UnaryFunc(mpd_qexp) |
| 4712 | DecCtx_UnaryFunc(mpd_qln) |
| 4713 | DecCtx_UnaryFunc(mpd_qlog10) |
| 4714 | DecCtx_UnaryFunc(mpd_qminus) |
| 4715 | DecCtx_UnaryFunc(mpd_qnext_minus) |
| 4716 | DecCtx_UnaryFunc(mpd_qnext_plus) |
| 4717 | DecCtx_UnaryFunc(mpd_qplus) |
| 4718 | DecCtx_UnaryFunc(mpd_qreduce) |
| 4719 | DecCtx_UnaryFunc(mpd_qround_to_int) |
| 4720 | DecCtx_UnaryFunc(mpd_qround_to_intx) |
| 4721 | DecCtx_UnaryFunc(mpd_qsqrt) |
| 4722 | |
| 4723 | /* Binary arithmetic functions */ |
| 4724 | DecCtx_BinaryFunc(mpd_qadd) |
| 4725 | DecCtx_BinaryFunc(mpd_qcompare) |
| 4726 | DecCtx_BinaryFunc(mpd_qcompare_signal) |
| 4727 | DecCtx_BinaryFunc(mpd_qdiv) |
| 4728 | DecCtx_BinaryFunc(mpd_qdivint) |
| 4729 | DecCtx_BinaryFunc(mpd_qmax) |
| 4730 | DecCtx_BinaryFunc(mpd_qmax_mag) |
| 4731 | DecCtx_BinaryFunc(mpd_qmin) |
| 4732 | DecCtx_BinaryFunc(mpd_qmin_mag) |
| 4733 | DecCtx_BinaryFunc(mpd_qmul) |
| 4734 | DecCtx_BinaryFunc(mpd_qnext_toward) |
| 4735 | DecCtx_BinaryFunc(mpd_qquantize) |
| 4736 | DecCtx_BinaryFunc(mpd_qrem) |
| 4737 | DecCtx_BinaryFunc(mpd_qrem_near) |
| 4738 | DecCtx_BinaryFunc(mpd_qsub) |
| 4739 | |
| 4740 | static PyObject * |
| 4741 | ctx_mpd_qdivmod(PyObject *context, PyObject *args) |
| 4742 | { |
| 4743 | PyObject *v, *w; |
| 4744 | PyObject *a, *b; |
| 4745 | PyObject *q, *r; |
| 4746 | uint32_t status = 0; |
| 4747 | PyObject *ret; |
| 4748 | |
| 4749 | if (!PyArg_ParseTuple(args, "OO", &v, &w)) { |
| 4750 | return NULL; |
| 4751 | } |
| 4752 | |
| 4753 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); |
| 4754 | |
| 4755 | q = dec_alloc(); |
| 4756 | if (q == NULL) { |
| 4757 | Py_DECREF(a); |
| 4758 | Py_DECREF(b); |
| 4759 | return NULL; |
| 4760 | } |
| 4761 | r = dec_alloc(); |
| 4762 | if (r == NULL) { |
| 4763 | Py_DECREF(a); |
| 4764 | Py_DECREF(b); |
| 4765 | Py_DECREF(q); |
| 4766 | return NULL; |
| 4767 | } |
| 4768 | |
| 4769 | mpd_qdivmod(MPD(q), MPD(r), MPD(a), MPD(b), CTX(context), &status); |
| 4770 | Py_DECREF(a); |
| 4771 | Py_DECREF(b); |
| 4772 | if (dec_addstatus(context, status)) { |
| 4773 | Py_DECREF(r); |
| 4774 | Py_DECREF(q); |
| 4775 | return NULL; |
| 4776 | } |
| 4777 | |
| 4778 | ret = Py_BuildValue("(OO)", q, r); |
| 4779 | Py_DECREF(r); |
| 4780 | Py_DECREF(q); |
| 4781 | return ret; |
| 4782 | } |
| 4783 | |
| 4784 | /* Binary or ternary arithmetic functions */ |
| 4785 | static PyObject * |
| 4786 | ctx_mpd_qpow(PyObject *context, PyObject *args, PyObject *kwds) |
| 4787 | { |
| 4788 | static char *kwlist[] = {"a", "b", "modulo", NULL}; |
| 4789 | PyObject *base, *exp, *mod = NULL; |
| 4790 | PyObject *a, *b, *c = NULL; |
| 4791 | PyObject *result; |
| 4792 | uint32_t status = 0; |
| 4793 | |
| 4794 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O", kwlist, |
| 4795 | &base, &exp, &mod)) { |
| 4796 | return NULL; |
| 4797 | } |
| 4798 | |
| 4799 | CONVERT_BINOP_RAISE(&a, &b, base, exp, context); |
| 4800 | |
| 4801 | if (mod != NULL) { |
| 4802 | if (!convert_op(TYPE_ERR, &c, mod, context)) { |
| 4803 | Py_DECREF(a); |
| 4804 | Py_DECREF(b); |
| 4805 | return c; |
| 4806 | } |
| 4807 | } |
| 4808 | |
| 4809 | result = dec_alloc(); |
| 4810 | if (result == NULL) { |
| 4811 | Py_DECREF(a); |
| 4812 | Py_DECREF(b); |
| 4813 | Py_XDECREF(c); |
| 4814 | return NULL; |
| 4815 | } |
| 4816 | |
| 4817 | if (c == NULL) { |
| 4818 | mpd_qpow(MPD(result), MPD(a), MPD(b), |
| 4819 | CTX(context), &status); |
| 4820 | } |
| 4821 | else { |
| 4822 | mpd_qpowmod(MPD(result), MPD(a), MPD(b), MPD(c), |
| 4823 | CTX(context), &status); |
| 4824 | status = (status == MPD_Clamped) ? 0 : status; |
| 4825 | /* remove ideal exponent for compatibility with decimal.py */ |
| 4826 | mpd_qquantize(MPD(result), MPD(result), &zero, |
| 4827 | CTX(context), &status); |
| 4828 | Py_DECREF(c); |
| 4829 | } |
| 4830 | Py_DECREF(a); |
| 4831 | Py_DECREF(b); |
| 4832 | if (dec_addstatus(context, status)) { |
| 4833 | Py_DECREF(result); |
| 4834 | return NULL; |
| 4835 | } |
| 4836 | |
| 4837 | return result; |
| 4838 | } |
| 4839 | |
| 4840 | /* Ternary arithmetic functions */ |
| 4841 | DecCtx_TernaryFunc(mpd_qfma) |
| 4842 | |
| 4843 | /* No argument */ |
| 4844 | static PyObject * |
| 4845 | ctx_mpd_radix(PyObject *context, PyObject *dummy) |
| 4846 | { |
| 4847 | return dec_mpd_radix(context, dummy); |
| 4848 | } |
| 4849 | |
| 4850 | /* Boolean functions: single decimal argument */ |
| 4851 | DecCtx_BoolFunc(mpd_isnormal) |
| 4852 | DecCtx_BoolFunc(mpd_issubnormal) |
| 4853 | DecCtx_BoolFunc_NO_CTX(mpd_isfinite) |
| 4854 | DecCtx_BoolFunc_NO_CTX(mpd_isinfinite) |
| 4855 | DecCtx_BoolFunc_NO_CTX(mpd_isnan) |
| 4856 | DecCtx_BoolFunc_NO_CTX(mpd_isqnan) |
| 4857 | DecCtx_BoolFunc_NO_CTX(mpd_issigned) |
| 4858 | DecCtx_BoolFunc_NO_CTX(mpd_issnan) |
| 4859 | DecCtx_BoolFunc_NO_CTX(mpd_iszero) |
| 4860 | |
| 4861 | static PyObject * |
| 4862 | ctx_iscanonical(PyObject *context UNUSED, PyObject *v) |
| 4863 | { |
| 4864 | if (!PyDec_Check(v)) { |
| 4865 | PyErr_SetString(PyExc_TypeError, |
| 4866 | "argument must be a Decimal"); |
| 4867 | return NULL; |
| 4868 | } |
| 4869 | |
| 4870 | return mpd_iscanonical(MPD(v)) ? incr_true() : incr_false(); |
| 4871 | } |
| 4872 | |
| 4873 | /* Functions with a single decimal argument */ |
| 4874 | static PyObject * |
| 4875 | PyDecContext_Apply(PyObject *context, PyObject *v) |
| 4876 | { |
| 4877 | PyObject *result, *a; |
| 4878 | |
| 4879 | CONVERT_OP_RAISE(&a, v, context); |
| 4880 | |
| 4881 | result = dec_apply(a, context); |
| 4882 | Py_DECREF(a); |
| 4883 | return result; |
| 4884 | } |
| 4885 | |
| 4886 | static PyObject * |
| 4887 | ctx_canonical(PyObject *context UNUSED, PyObject *v) |
| 4888 | { |
| 4889 | if (!PyDec_Check(v)) { |
| 4890 | PyErr_SetString(PyExc_TypeError, |
| 4891 | "argument must be a Decimal"); |
| 4892 | return NULL; |
| 4893 | } |
| 4894 | |
| 4895 | Py_INCREF(v); |
| 4896 | return v; |
| 4897 | } |
| 4898 | |
| 4899 | static PyObject * |
| 4900 | ctx_mpd_qcopy_abs(PyObject *context, PyObject *v) |
| 4901 | { |
| 4902 | PyObject *result, *a; |
| 4903 | uint32_t status = 0; |
| 4904 | |
| 4905 | CONVERT_OP_RAISE(&a, v, context); |
| 4906 | |
| 4907 | result = dec_alloc(); |
| 4908 | if (result == NULL) { |
| 4909 | Py_DECREF(a); |
| 4910 | return NULL; |
| 4911 | } |
| 4912 | |
| 4913 | mpd_qcopy_abs(MPD(result), MPD(a), &status); |
| 4914 | Py_DECREF(a); |
| 4915 | if (dec_addstatus(context, status)) { |
| 4916 | Py_DECREF(result); |
| 4917 | return NULL; |
| 4918 | } |
| 4919 | |
| 4920 | return result; |
| 4921 | } |
| 4922 | |
| 4923 | static PyObject * |
| 4924 | ctx_copy_decimal(PyObject *context, PyObject *v) |
| 4925 | { |
| 4926 | PyObject *result; |
| 4927 | |
| 4928 | CONVERT_OP_RAISE(&result, v, context); |
| 4929 | return result; |
| 4930 | } |
| 4931 | |
| 4932 | static PyObject * |
| 4933 | ctx_mpd_qcopy_negate(PyObject *context, PyObject *v) |
| 4934 | { |
| 4935 | PyObject *result, *a; |
| 4936 | uint32_t status = 0; |
| 4937 | |
| 4938 | CONVERT_OP_RAISE(&a, v, context); |
| 4939 | |
| 4940 | result = dec_alloc(); |
| 4941 | if (result == NULL) { |
| 4942 | Py_DECREF(a); |
| 4943 | return NULL; |
| 4944 | } |
| 4945 | |
| 4946 | mpd_qcopy_negate(MPD(result), MPD(a), &status); |
| 4947 | Py_DECREF(a); |
| 4948 | if (dec_addstatus(context, status)) { |
| 4949 | Py_DECREF(result); |
| 4950 | return NULL; |
| 4951 | } |
| 4952 | |
| 4953 | return result; |
| 4954 | } |
| 4955 | |
| 4956 | DecCtx_UnaryFunc(mpd_qlogb) |
| 4957 | DecCtx_UnaryFunc(mpd_qinvert) |
| 4958 | |
| 4959 | static PyObject * |
| 4960 | ctx_mpd_class(PyObject *context, PyObject *v) |
| 4961 | { |
| 4962 | PyObject *a; |
| 4963 | const char *cp; |
| 4964 | |
| 4965 | CONVERT_OP_RAISE(&a, v, context); |
| 4966 | |
| 4967 | cp = mpd_class(MPD(a), CTX(context)); |
| 4968 | Py_DECREF(a); |
| 4969 | |
| 4970 | return PyUnicode_FromString(cp); |
| 4971 | } |
| 4972 | |
| 4973 | static PyObject * |
| 4974 | ctx_mpd_to_sci(PyObject *context, PyObject *v) |
| 4975 | { |
| 4976 | PyObject *result; |
| 4977 | PyObject *a; |
| 4978 | mpd_ssize_t size; |
| 4979 | char *s; |
| 4980 | |
| 4981 | CONVERT_OP_RAISE(&a, v, context); |
| 4982 | |
| 4983 | size = mpd_to_sci_size(&s, MPD(a), CtxCaps(context)); |
| 4984 | Py_DECREF(a); |
| 4985 | if (size < 0) { |
| 4986 | PyErr_NoMemory(); |
| 4987 | return NULL; |
| 4988 | } |
| 4989 | |
| 4990 | result = unicode_fromascii(s, size); |
| 4991 | mpd_free(s); |
| 4992 | |
| 4993 | return result; |
| 4994 | } |
| 4995 | |
| 4996 | static PyObject * |
| 4997 | ctx_mpd_to_eng(PyObject *context, PyObject *v) |
| 4998 | { |
| 4999 | PyObject *result; |
| 5000 | PyObject *a; |
| 5001 | mpd_ssize_t size; |
| 5002 | char *s; |
| 5003 | |
| 5004 | CONVERT_OP_RAISE(&a, v, context); |
| 5005 | |
| 5006 | size = mpd_to_eng_size(&s, MPD(a), CtxCaps(context)); |
| 5007 | Py_DECREF(a); |
| 5008 | if (size < 0) { |
| 5009 | PyErr_NoMemory(); |
| 5010 | return NULL; |
| 5011 | } |
| 5012 | |
| 5013 | result = unicode_fromascii(s, size); |
| 5014 | mpd_free(s); |
| 5015 | |
| 5016 | return result; |
| 5017 | } |
| 5018 | |
| 5019 | /* Functions with two decimal arguments */ |
| 5020 | DecCtx_BinaryFunc_NO_CTX(mpd_compare_total) |
| 5021 | DecCtx_BinaryFunc_NO_CTX(mpd_compare_total_mag) |
| 5022 | |
| 5023 | static PyObject * |
| 5024 | ctx_mpd_qcopy_sign(PyObject *context, PyObject *args) |
| 5025 | { |
| 5026 | PyObject *v, *w; |
| 5027 | PyObject *a, *b; |
| 5028 | PyObject *result; |
| 5029 | uint32_t status = 0; |
| 5030 | |
| 5031 | if (!PyArg_ParseTuple(args, "OO", &v, &w)) { |
| 5032 | return NULL; |
| 5033 | } |
| 5034 | |
| 5035 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); |
| 5036 | |
| 5037 | result = dec_alloc(); |
| 5038 | if (result == NULL) { |
| 5039 | Py_DECREF(a); |
| 5040 | Py_DECREF(b); |
| 5041 | return NULL; |
| 5042 | } |
| 5043 | |
| 5044 | mpd_qcopy_sign(MPD(result), MPD(a), MPD(b), &status); |
| 5045 | Py_DECREF(a); |
| 5046 | Py_DECREF(b); |
| 5047 | if (dec_addstatus(context, status)) { |
| 5048 | Py_DECREF(result); |
| 5049 | return NULL; |
| 5050 | } |
| 5051 | |
| 5052 | return result; |
| 5053 | } |
| 5054 | |
| 5055 | DecCtx_BinaryFunc(mpd_qand) |
| 5056 | DecCtx_BinaryFunc(mpd_qor) |
| 5057 | DecCtx_BinaryFunc(mpd_qxor) |
| 5058 | |
| 5059 | DecCtx_BinaryFunc(mpd_qrotate) |
| 5060 | DecCtx_BinaryFunc(mpd_qscaleb) |
| 5061 | DecCtx_BinaryFunc(mpd_qshift) |
| 5062 | |
| 5063 | static PyObject * |
| 5064 | ctx_mpd_same_quantum(PyObject *context, PyObject *args) |
| 5065 | { |
| 5066 | PyObject *v, *w; |
| 5067 | PyObject *a, *b; |
| 5068 | PyObject *result; |
| 5069 | |
| 5070 | if (!PyArg_ParseTuple(args, "OO", &v, &w)) { |
| 5071 | return NULL; |
| 5072 | } |
| 5073 | |
| 5074 | CONVERT_BINOP_RAISE(&a, &b, v, w, context); |
| 5075 | |
| 5076 | result = mpd_same_quantum(MPD(a), MPD(b)) ? incr_true() : incr_false(); |
| 5077 | Py_DECREF(a); |
| 5078 | Py_DECREF(b); |
| 5079 | |
| 5080 | return result; |
| 5081 | } |
| 5082 | |
| 5083 | |
| 5084 | static PyMethodDef context_methods [] = |
| 5085 | { |
| 5086 | /* Unary arithmetic functions */ |
| 5087 | { "abs", ctx_mpd_qabs, METH_O, doc_ctx_abs }, |
| 5088 | { "exp", ctx_mpd_qexp, METH_O, doc_ctx_exp }, |
| 5089 | { "ln", ctx_mpd_qln, METH_O, doc_ctx_ln }, |
| 5090 | { "log10", ctx_mpd_qlog10, METH_O, doc_ctx_log10 }, |
| 5091 | { "minus", ctx_mpd_qminus, METH_O, doc_ctx_minus }, |
| 5092 | { "next_minus", ctx_mpd_qnext_minus, METH_O, doc_ctx_next_minus }, |
| 5093 | { "next_plus", ctx_mpd_qnext_plus, METH_O, doc_ctx_next_plus }, |
| 5094 | { "normalize", ctx_mpd_qreduce, METH_O, doc_ctx_normalize }, |
| 5095 | { "plus", ctx_mpd_qplus, METH_O, doc_ctx_plus }, |
| 5096 | { "to_integral", ctx_mpd_qround_to_int, METH_O, doc_ctx_to_integral }, |
| 5097 | { "to_integral_exact", ctx_mpd_qround_to_intx, METH_O, doc_ctx_to_integral_exact }, |
| 5098 | { "to_integral_value", ctx_mpd_qround_to_int, METH_O, doc_ctx_to_integral_value }, |
| 5099 | { "sqrt", ctx_mpd_qsqrt, METH_O, doc_ctx_sqrt }, |
| 5100 | |
| 5101 | /* Binary arithmetic functions */ |
| 5102 | { "add", ctx_mpd_qadd, METH_VARARGS, doc_ctx_add }, |
| 5103 | { "compare", ctx_mpd_qcompare, METH_VARARGS, doc_ctx_compare }, |
| 5104 | { "compare_signal", ctx_mpd_qcompare_signal, METH_VARARGS, doc_ctx_compare_signal }, |
| 5105 | { "divide", ctx_mpd_qdiv, METH_VARARGS, doc_ctx_divide }, |
| 5106 | { "divide_int", ctx_mpd_qdivint, METH_VARARGS, doc_ctx_divide_int }, |
| 5107 | { "divmod", ctx_mpd_qdivmod, METH_VARARGS, doc_ctx_divmod }, |
| 5108 | { "max", ctx_mpd_qmax, METH_VARARGS, doc_ctx_max }, |
| 5109 | { "max_mag", ctx_mpd_qmax_mag, METH_VARARGS, doc_ctx_max_mag }, |
| 5110 | { "min", ctx_mpd_qmin, METH_VARARGS, doc_ctx_min }, |
| 5111 | { "min_mag", ctx_mpd_qmin_mag, METH_VARARGS, doc_ctx_min_mag }, |
| 5112 | { "multiply", ctx_mpd_qmul, METH_VARARGS, doc_ctx_multiply }, |
| 5113 | { "next_toward", ctx_mpd_qnext_toward, METH_VARARGS, doc_ctx_next_toward }, |
| 5114 | { "quantize", ctx_mpd_qquantize, METH_VARARGS, doc_ctx_quantize }, |
| 5115 | { "remainder", ctx_mpd_qrem, METH_VARARGS, doc_ctx_remainder }, |
| 5116 | { "remainder_near", ctx_mpd_qrem_near, METH_VARARGS, doc_ctx_remainder_near }, |
| 5117 | { "subtract", ctx_mpd_qsub, METH_VARARGS, doc_ctx_subtract }, |
| 5118 | |
| 5119 | /* Binary or ternary arithmetic functions */ |
| 5120 | { "power", (PyCFunction)ctx_mpd_qpow, METH_VARARGS|METH_KEYWORDS, doc_ctx_power }, |
| 5121 | |
| 5122 | /* Ternary arithmetic functions */ |
| 5123 | { "fma", ctx_mpd_qfma, METH_VARARGS, doc_ctx_fma }, |
| 5124 | |
| 5125 | /* No argument */ |
| 5126 | { "Etiny", context_getetiny, METH_NOARGS, doc_ctx_Etiny }, |
| 5127 | { "Etop", context_getetop, METH_NOARGS, doc_ctx_Etop }, |
| 5128 | { "radix", ctx_mpd_radix, METH_NOARGS, doc_ctx_radix }, |
| 5129 | |
| 5130 | /* Boolean functions */ |
| 5131 | { "is_canonical", ctx_iscanonical, METH_O, doc_ctx_is_canonical }, |
| 5132 | { "is_finite", ctx_mpd_isfinite, METH_O, doc_ctx_is_finite }, |
| 5133 | { "is_infinite", ctx_mpd_isinfinite, METH_O, doc_ctx_is_infinite }, |
| 5134 | { "is_nan", ctx_mpd_isnan, METH_O, doc_ctx_is_nan }, |
| 5135 | { "is_normal", ctx_mpd_isnormal, METH_O, doc_ctx_is_normal }, |
| 5136 | { "is_qnan", ctx_mpd_isqnan, METH_O, doc_ctx_is_qnan }, |
| 5137 | { "is_signed", ctx_mpd_issigned, METH_O, doc_ctx_is_signed }, |
| 5138 | { "is_snan", ctx_mpd_issnan, METH_O, doc_ctx_is_snan }, |
| 5139 | { "is_subnormal", ctx_mpd_issubnormal, METH_O, doc_ctx_is_subnormal }, |
| 5140 | { "is_zero", ctx_mpd_iszero, METH_O, doc_ctx_is_zero }, |
| 5141 | |
| 5142 | /* Functions with a single decimal argument */ |
| 5143 | { "_apply", PyDecContext_Apply, METH_O, NULL }, /* alias for apply */ |
| 5144 | #ifdef EXTRA_FUNCTIONALITY |
| 5145 | { "apply", PyDecContext_Apply, METH_O, doc_ctx_apply }, |
| 5146 | #endif |
| 5147 | { "canonical", ctx_canonical, METH_O, doc_ctx_canonical }, |
| 5148 | { "copy_abs", ctx_mpd_qcopy_abs, METH_O, doc_ctx_copy_abs }, |
| 5149 | { "copy_decimal", ctx_copy_decimal, METH_O, doc_ctx_copy_decimal }, |
| 5150 | { "copy_negate", ctx_mpd_qcopy_negate, METH_O, doc_ctx_copy_negate }, |
| 5151 | { "logb", ctx_mpd_qlogb, METH_O, doc_ctx_logb }, |
| 5152 | { "logical_invert", ctx_mpd_qinvert, METH_O, doc_ctx_logical_invert }, |
| 5153 | { "number_class", ctx_mpd_class, METH_O, doc_ctx_number_class }, |
| 5154 | { "to_sci_string", ctx_mpd_to_sci, METH_O, doc_ctx_to_sci_string }, |
| 5155 | { "to_eng_string", ctx_mpd_to_eng, METH_O, doc_ctx_to_eng_string }, |
| 5156 | |
| 5157 | /* Functions with two decimal arguments */ |
| 5158 | { "compare_total", ctx_mpd_compare_total, METH_VARARGS, doc_ctx_compare_total }, |
| 5159 | { "compare_total_mag", ctx_mpd_compare_total_mag, METH_VARARGS, doc_ctx_compare_total_mag }, |
| 5160 | { "copy_sign", ctx_mpd_qcopy_sign, METH_VARARGS, doc_ctx_copy_sign }, |
| 5161 | { "logical_and", ctx_mpd_qand, METH_VARARGS, doc_ctx_logical_and }, |
| 5162 | { "logical_or", ctx_mpd_qor, METH_VARARGS, doc_ctx_logical_or }, |
| 5163 | { "logical_xor", ctx_mpd_qxor, METH_VARARGS, doc_ctx_logical_xor }, |
| 5164 | { "rotate", ctx_mpd_qrotate, METH_VARARGS, doc_ctx_rotate }, |
| 5165 | { "same_quantum", ctx_mpd_same_quantum, METH_VARARGS, doc_ctx_same_quantum }, |
| 5166 | { "scaleb", ctx_mpd_qscaleb, METH_VARARGS, doc_ctx_scaleb }, |
| 5167 | { "shift", ctx_mpd_qshift, METH_VARARGS, doc_ctx_shift }, |
| 5168 | |
| 5169 | /* Set context values */ |
| 5170 | { "clear_flags", context_clear_flags, METH_NOARGS, doc_ctx_clear_flags }, |
| 5171 | { "clear_traps", context_clear_traps, METH_NOARGS, doc_ctx_clear_traps }, |
| 5172 | |
| 5173 | #ifdef CONFIG_32 |
| 5174 | /* Unsafe set functions with relaxed range checks */ |
| 5175 | { "_unsafe_setprec", context_unsafe_setprec, METH_O, NULL }, |
| 5176 | { "_unsafe_setemin", context_unsafe_setemin, METH_O, NULL }, |
| 5177 | { "_unsafe_setemax", context_unsafe_setemax, METH_O, NULL }, |
| 5178 | #endif |
| 5179 | |
| 5180 | /* Miscellaneous */ |
| 5181 | { "__copy__", (PyCFunction)context_copy, METH_NOARGS, NULL }, |
| 5182 | { "__reduce__", context_reduce, METH_NOARGS, NULL }, |
| 5183 | { "copy", (PyCFunction)context_copy, METH_NOARGS, doc_ctx_copy }, |
| 5184 | { "create_decimal", ctx_create_decimal, METH_VARARGS, doc_ctx_create_decimal }, |
| 5185 | { "create_decimal_from_float", ctx_from_float, METH_O, doc_ctx_create_decimal_from_float }, |
| 5186 | |
| 5187 | { NULL, NULL, 1 } |
| 5188 | }; |
| 5189 | |
| 5190 | static PyTypeObject PyDecContext_Type = |
| 5191 | { |
| 5192 | PyVarObject_HEAD_INIT(NULL, 0) |
| 5193 | "decimal.Context", /* tp_name */ |
| 5194 | sizeof(PyDecContextObject), /* tp_basicsize */ |
| 5195 | 0, /* tp_itemsize */ |
| 5196 | (destructor) context_dealloc, /* tp_dealloc */ |
| 5197 | 0, /* tp_print */ |
| 5198 | (getattrfunc) 0, /* tp_getattr */ |
| 5199 | (setattrfunc) 0, /* tp_setattr */ |
| 5200 | 0, /* tp_reserved */ |
| 5201 | (reprfunc) context_repr, /* tp_repr */ |
| 5202 | 0, /* tp_as_number */ |
| 5203 | 0, /* tp_as_sequence */ |
| 5204 | 0, /* tp_as_mapping */ |
| 5205 | (hashfunc) 0, /* tp_hash */ |
| 5206 | 0, /* tp_call */ |
| 5207 | (reprfunc) context_repr, /* tp_str */ |
| 5208 | (getattrofunc) context_getattr, /* tp_getattro */ |
| 5209 | (setattrofunc) context_setattr, /* tp_setattro */ |
| 5210 | (PyBufferProcs *) 0, /* tp_as_buffer */ |
| 5211 | Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 5212 | doc_context, /* tp_doc */ |
| 5213 | 0, /* tp_traverse */ |
| 5214 | 0, /* tp_clear */ |
| 5215 | 0, /* tp_richcompare */ |
| 5216 | 0, /* tp_weaklistoffset */ |
| 5217 | 0, /* tp_iter */ |
| 5218 | 0, /* tp_iternext */ |
| 5219 | context_methods, /* tp_methods */ |
| 5220 | 0, /* tp_members */ |
| 5221 | context_getsets, /* tp_getset */ |
| 5222 | 0, /* tp_base */ |
| 5223 | 0, /* tp_dict */ |
| 5224 | 0, /* tp_descr_get */ |
| 5225 | 0, /* tp_descr_set */ |
| 5226 | 0, /* tp_dictoffset */ |
| 5227 | context_init, /* tp_init */ |
| 5228 | 0, /* tp_alloc */ |
| 5229 | context_new, /* tp_new */ |
| 5230 | PyObject_Del, /* tp_free */ |
| 5231 | }; |
| 5232 | |
| 5233 | |
| 5234 | static PyMethodDef _decimal_methods [] = |
| 5235 | { |
| 5236 | { "getcontext", (PyCFunction)PyDec_GetCurrentContext, METH_NOARGS, doc_getcontext}, |
| 5237 | { "setcontext", (PyCFunction)PyDec_SetCurrentContext, METH_O, doc_setcontext}, |
| 5238 | { "localcontext", (PyCFunction)ctxmanager_new, METH_VARARGS, doc_localcontext}, |
| 5239 | #ifdef EXTRA_FUNCTIONALITY |
| 5240 | { "IEEEContext", (PyCFunction)ieee_context, METH_O, doc_ieee_context}, |
| 5241 | #endif |
| 5242 | { NULL, NULL, 1, NULL } |
| 5243 | }; |
| 5244 | |
| 5245 | static struct PyModuleDef _decimal_module = { |
| 5246 | PyModuleDef_HEAD_INIT, |
| 5247 | "decimal", |
| 5248 | doc__decimal, |
| 5249 | -1, |
| 5250 | _decimal_methods, |
| 5251 | NULL, |
| 5252 | NULL, |
| 5253 | NULL, |
| 5254 | NULL |
| 5255 | }; |
| 5256 | |
| 5257 | struct ssize_constmap { const char *name; mpd_ssize_t val; }; |
| 5258 | static struct ssize_constmap ssize_constants [] = { |
| 5259 | {"MAX_PREC", MPD_MAX_PREC}, |
| 5260 | {"MAX_EMAX", MPD_MAX_EMAX}, |
| 5261 | {"MIN_EMIN", MPD_MIN_EMIN}, |
| 5262 | {"MIN_ETINY", MPD_MIN_ETINY}, |
| 5263 | {NULL} |
| 5264 | }; |
| 5265 | |
| 5266 | struct int_constmap { const char *name; int val; }; |
| 5267 | static struct int_constmap int_constants [] = { |
| 5268 | /* int constants */ |
| 5269 | #ifdef EXTRA_FUNCTIONALITY |
| 5270 | {"DECIMAL32", MPD_DECIMAL32}, |
| 5271 | {"DECIMAL64", MPD_DECIMAL64}, |
| 5272 | {"DECIMAL128", MPD_DECIMAL128}, |
| 5273 | {"IEEE_CONTEXT_MAX_BITS", MPD_IEEE_CONTEXT_MAX_BITS}, |
| 5274 | #endif |
| 5275 | {"ROUND_CEILING", MPD_ROUND_CEILING}, |
| 5276 | {"ROUND_FLOOR", MPD_ROUND_FLOOR}, |
| 5277 | {"ROUND_UP", MPD_ROUND_UP}, |
| 5278 | {"ROUND_DOWN", MPD_ROUND_DOWN}, |
| 5279 | {"ROUND_HALF_UP", MPD_ROUND_HALF_UP}, |
| 5280 | {"ROUND_HALF_DOWN", MPD_ROUND_HALF_DOWN}, |
| 5281 | {"ROUND_HALF_EVEN", MPD_ROUND_HALF_EVEN}, |
| 5282 | {"ROUND_05UP", MPD_ROUND_05UP}, |
| 5283 | #ifdef EXTRA_FUNCTIONALITY |
| 5284 | {"ROUND_TRUNC", MPD_ROUND_TRUNC}, |
| 5285 | /* int condition flags */ |
| 5286 | {"DecClamped", MPD_Clamped}, |
| 5287 | {"DecConversionSyntax", MPD_Conversion_syntax}, |
| 5288 | {"DecDivisionByZero", MPD_Division_by_zero}, |
| 5289 | {"DecDivisionImpossible", MPD_Division_impossible}, |
| 5290 | {"DecDivisionUndefined", MPD_Division_undefined}, |
| 5291 | {"DecFpuError", MPD_Fpu_error}, |
| 5292 | {"DecInexact", MPD_Inexact}, |
| 5293 | {"DecInvalidContext", MPD_Invalid_context}, |
| 5294 | {"DecInvalidOperation", MPD_Invalid_operation}, |
| 5295 | {"DecIEEEInvalidOperation", MPD_IEEE_Invalid_operation}, |
| 5296 | {"DecMallocError", MPD_Malloc_error}, |
| 5297 | {"DecFloatOperation", MPD_Float_operation}, |
| 5298 | {"DecOverflow", MPD_Overflow}, |
| 5299 | {"DecRounded", MPD_Rounded}, |
| 5300 | {"DecSubnormal", MPD_Subnormal}, |
| 5301 | {"DecUnderflow", MPD_Underflow}, |
| 5302 | {"DecErrors", MPD_Errors}, |
| 5303 | {"DecTraps", MPD_Traps}, |
| 5304 | #endif |
| 5305 | {NULL} |
| 5306 | }; |
| 5307 | |
| 5308 | |
| 5309 | #define CHECK_INT(expr) \ |
| 5310 | do { if ((expr) < 0) goto error; } while (0) |
| 5311 | #define ASSIGN_PTR(result, expr) \ |
| 5312 | do { result = (expr); if (result == NULL) goto error; } while (0) |
| 5313 | #define CHECK_PTR(expr) \ |
| 5314 | do { if ((expr) == NULL) goto error; } while (0) |
| 5315 | |
| 5316 | PyMODINIT_FUNC |
| 5317 | PyInit__decimal(void) |
| 5318 | { |
| 5319 | PyObject *m = NULL; |
| 5320 | PyObject *numbers = NULL; |
| 5321 | PyObject *Number = NULL; |
| 5322 | PyObject *collections = NULL; |
| 5323 | PyObject *MutableMapping = NULL; |
| 5324 | PyObject *obj = NULL; |
| 5325 | DecCondMap *cm; |
| 5326 | struct ssize_constmap *ssize_cm; |
| 5327 | struct int_constmap *int_cm; |
| 5328 | int i; |
| 5329 | |
| 5330 | |
| 5331 | /* Init libmpdec */ |
| 5332 | mpd_traphandler = dec_traphandler; |
| 5333 | mpd_mallocfunc = PyMem_Malloc; |
| 5334 | mpd_reallocfunc = PyMem_Realloc; |
| 5335 | mpd_callocfunc = mpd_callocfunc_em; |
| 5336 | mpd_free = PyMem_Free; |
| 5337 | mpd_setminalloc(4); |
| 5338 | |
| 5339 | |
| 5340 | /* Init types */ |
| 5341 | PyDec_Type.tp_base = &PyBaseObject_Type; |
| 5342 | PyDecContext_Type.tp_base = &PyBaseObject_Type; |
| 5343 | PyDecContextManager_Type.tp_base = &PyBaseObject_Type; |
| 5344 | PyDecSignalDictMixin_Type.tp_base = &PyBaseObject_Type; |
| 5345 | |
| 5346 | CHECK_INT(PyType_Ready(&PyDec_Type)); |
| 5347 | CHECK_INT(PyType_Ready(&PyDecContext_Type)); |
| 5348 | CHECK_INT(PyType_Ready(&PyDecSignalDictMixin_Type)); |
| 5349 | CHECK_INT(PyType_Ready(&PyDecContextManager_Type)); |
| 5350 | |
| 5351 | ASSIGN_PTR(obj, PyUnicode_FromString("decimal")); |
| 5352 | CHECK_INT(PyDict_SetItemString(PyDec_Type.tp_dict, "__module__", obj)); |
| 5353 | CHECK_INT(PyDict_SetItemString(PyDecContext_Type.tp_dict, |
| 5354 | "__module__", obj)); |
| 5355 | Py_CLEAR(obj); |
| 5356 | |
| 5357 | |
| 5358 | /* Numeric abstract base classes */ |
| 5359 | ASSIGN_PTR(numbers, PyImport_ImportModule("numbers")); |
| 5360 | ASSIGN_PTR(Number, PyObject_GetAttrString(numbers, "Number")); |
| 5361 | /* Register Decimal with the Number abstract base class */ |
| 5362 | ASSIGN_PTR(obj, PyObject_CallMethod(Number, "register", "(O)", |
| 5363 | (PyObject *)&PyDec_Type)); |
| 5364 | Py_CLEAR(obj); |
| 5365 | /* Rational is a global variable used for fraction comparisons. */ |
| 5366 | ASSIGN_PTR(Rational, PyObject_GetAttrString(numbers, "Rational")); |
| 5367 | /* Done with numbers, Number */ |
| 5368 | Py_CLEAR(numbers); |
| 5369 | Py_CLEAR(Number); |
| 5370 | |
| 5371 | /* DecimalTuple */ |
| 5372 | ASSIGN_PTR(collections, PyImport_ImportModule("collections")); |
| 5373 | ASSIGN_PTR(DecimalTuple, PyObject_CallMethod(collections, |
| 5374 | "namedtuple", "(ss)", "DecimalTuple", |
| 5375 | "sign digits exponent")); |
| 5376 | /* MutableMapping */ |
| 5377 | ASSIGN_PTR(MutableMapping, PyObject_GetAttrString(collections, |
| 5378 | "MutableMapping")); |
| 5379 | /* Create SignalDict type */ |
| 5380 | ASSIGN_PTR(PyDecSignalDict_Type, |
| 5381 | (PyTypeObject *)PyObject_CallFunction( |
| 5382 | (PyObject *)&PyType_Type, "s(OO){}", |
| 5383 | "SignalDict", &PyDecSignalDictMixin_Type, |
| 5384 | MutableMapping)); |
| 5385 | |
| 5386 | /* Done with collections, MutableMapping */ |
| 5387 | Py_CLEAR(collections); |
| 5388 | Py_CLEAR(MutableMapping); |
| 5389 | |
| 5390 | |
| 5391 | /* Create the module */ |
| 5392 | ASSIGN_PTR(m, PyModule_Create(&_decimal_module)); |
| 5393 | |
| 5394 | |
| 5395 | /* Add types to the module */ |
| 5396 | Py_INCREF(&PyDec_Type); |
| 5397 | CHECK_INT(PyModule_AddObject(m, "Decimal", (PyObject *)&PyDec_Type)); |
| 5398 | Py_INCREF(&PyDecContext_Type); |
| 5399 | CHECK_INT(PyModule_AddObject(m, "Context", |
| 5400 | (PyObject *)&PyDecContext_Type)); |
| 5401 | Py_INCREF(DecimalTuple); |
| 5402 | CHECK_INT(PyModule_AddObject(m, "DecimalTuple", DecimalTuple)); |
| 5403 | |
| 5404 | |
| 5405 | /* Create top level exception */ |
| 5406 | ASSIGN_PTR(DecimalException, PyErr_NewException( |
| 5407 | "decimal.DecimalException", |
| 5408 | PyExc_ArithmeticError, NULL)); |
| 5409 | Py_INCREF(DecimalException); |
| 5410 | CHECK_INT(PyModule_AddObject(m, "DecimalException", DecimalException)); |
| 5411 | |
| 5412 | /* Create signal tuple */ |
| 5413 | ASSIGN_PTR(SignalTuple, PyTuple_New(SIGNAL_MAP_LEN)); |
| 5414 | |
| 5415 | /* Add exceptions that correspond to IEEE signals */ |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5416 | for (i = SIGNAL_MAP_LEN-1; i >= 0; i--) { |
| 5417 | PyObject *base; |
| 5418 | |
| 5419 | cm = signal_map + i; |
| 5420 | |
| 5421 | switch (cm->flag) { |
| 5422 | case MPD_Float_operation: |
| 5423 | base = PyTuple_Pack(2, DecimalException, PyExc_TypeError); |
| 5424 | break; |
| 5425 | case MPD_Division_by_zero: |
| 5426 | base = PyTuple_Pack(2, DecimalException, PyExc_ZeroDivisionError); |
| 5427 | break; |
| 5428 | case MPD_Overflow: |
| 5429 | base = PyTuple_Pack(2, signal_map[INEXACT].ex, |
| 5430 | signal_map[ROUNDED].ex); |
| 5431 | break; |
| 5432 | case MPD_Underflow: |
| 5433 | base = PyTuple_Pack(3, signal_map[INEXACT].ex, |
| 5434 | signal_map[ROUNDED].ex, |
| 5435 | signal_map[SUBNORMAL].ex); |
| 5436 | break; |
| 5437 | default: |
| 5438 | base = PyTuple_Pack(1, DecimalException); |
| 5439 | break; |
| 5440 | } |
| 5441 | |
| 5442 | if (base == NULL) { |
| 5443 | goto error; |
| 5444 | } |
| 5445 | |
| 5446 | ASSIGN_PTR(cm->ex, PyErr_NewException((char *)cm->fqname, base, NULL)); |
| 5447 | Py_DECREF(base); |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5448 | |
| 5449 | /* add to module */ |
| 5450 | Py_INCREF(cm->ex); |
| 5451 | CHECK_INT(PyModule_AddObject(m, cm->name, cm->ex)); |
| 5452 | |
| 5453 | /* add to signal tuple */ |
| 5454 | Py_INCREF(cm->ex); |
| 5455 | PyTuple_SET_ITEM(SignalTuple, i, cm->ex); |
| 5456 | } |
| 5457 | |
| 5458 | /* |
| 5459 | * Unfortunately, InvalidOperation is a signal that comprises |
| 5460 | * several conditions, including InvalidOperation! Naming the |
| 5461 | * signal IEEEInvalidOperation would prevent the confusion. |
| 5462 | */ |
| 5463 | cond_map[0].ex = signal_map[0].ex; |
| 5464 | |
| 5465 | /* Add remaining exceptions, inherit from InvalidOperation */ |
| 5466 | for (cm = cond_map+1; cm->name != NULL; cm++) { |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5467 | PyObject *base; |
| 5468 | if (cm->flag == MPD_Division_undefined) { |
| 5469 | base = PyTuple_Pack(2, signal_map[0].ex, PyExc_ZeroDivisionError); |
| 5470 | } |
| 5471 | else { |
| 5472 | base = PyTuple_Pack(1, signal_map[0].ex); |
| 5473 | } |
| 5474 | if (base == NULL) { |
| 5475 | goto error; |
| 5476 | } |
| 5477 | |
| 5478 | ASSIGN_PTR(cm->ex, PyErr_NewException((char *)cm->fqname, base, NULL)); |
| 5479 | Py_DECREF(base); |
| 5480 | |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5481 | Py_INCREF(cm->ex); |
| 5482 | CHECK_INT(PyModule_AddObject(m, cm->name, cm->ex)); |
| 5483 | } |
| 5484 | |
| 5485 | |
| 5486 | /* Init default context template first */ |
| 5487 | ASSIGN_PTR(default_context_template, |
| 5488 | PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); |
| 5489 | Py_INCREF(default_context_template); |
| 5490 | CHECK_INT(PyModule_AddObject(m, "DefaultContext", |
| 5491 | default_context_template)); |
| 5492 | |
| 5493 | #ifdef WITHOUT_THREADS |
| 5494 | /* Init module context */ |
| 5495 | ASSIGN_PTR(module_context, |
| 5496 | PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); |
| 5497 | Py_INCREF(Py_False); |
| 5498 | CHECK_INT(PyModule_AddObject(m, "HAVE_THREADS", Py_False)); |
| 5499 | #else |
| 5500 | ASSIGN_PTR(tls_context_key, PyUnicode_FromString("___DECIMAL_CTX__")); |
| 5501 | Py_INCREF(Py_True); |
| 5502 | CHECK_INT(PyModule_AddObject(m, "HAVE_THREADS", Py_True)); |
| 5503 | #endif |
| 5504 | |
| 5505 | /* Init basic context template */ |
| 5506 | ASSIGN_PTR(basic_context_template, |
| 5507 | PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); |
| 5508 | init_basic_context(basic_context_template); |
| 5509 | Py_INCREF(basic_context_template); |
| 5510 | CHECK_INT(PyModule_AddObject(m, "BasicContext", |
| 5511 | basic_context_template)); |
| 5512 | |
| 5513 | /* Init extended context template */ |
| 5514 | ASSIGN_PTR(extended_context_template, |
| 5515 | PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); |
| 5516 | init_extended_context(extended_context_template); |
| 5517 | Py_INCREF(extended_context_template); |
| 5518 | CHECK_INT(PyModule_AddObject(m, "ExtendedContext", |
| 5519 | extended_context_template)); |
| 5520 | |
| 5521 | |
| 5522 | /* Init mpd_ssize_t constants */ |
| 5523 | for (ssize_cm = ssize_constants; ssize_cm->name != NULL; ssize_cm++) { |
| 5524 | ASSIGN_PTR(obj, PyLong_FromSsize_t(ssize_cm->val)); |
| 5525 | CHECK_INT(PyModule_AddObject(m, ssize_cm->name, obj)); |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5526 | obj = NULL; |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5527 | } |
| 5528 | |
| 5529 | /* Init int constants */ |
| 5530 | for (int_cm = int_constants; int_cm->name != NULL; int_cm++) { |
| 5531 | CHECK_INT(PyModule_AddIntConstant(m, int_cm->name, |
| 5532 | int_cm->val)); |
| 5533 | } |
| 5534 | |
| 5535 | /* Add specification version number */ |
| 5536 | CHECK_INT(PyModule_AddStringConstant(m, "__version__", " 1.70")); |
| 5537 | |
| 5538 | |
| 5539 | return m; |
| 5540 | |
| 5541 | |
| 5542 | error: |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5543 | Py_CLEAR(obj); /* GCOV_NOT_REACHED */ |
| 5544 | Py_CLEAR(numbers); /* GCOV_NOT_REACHED */ |
| 5545 | Py_CLEAR(Number); /* GCOV_NOT_REACHED */ |
| 5546 | Py_CLEAR(Rational); /* GCOV_NOT_REACHED */ |
| 5547 | Py_CLEAR(collections); /* GCOV_NOT_REACHED */ |
| 5548 | Py_CLEAR(MutableMapping); /* GCOV_NOT_REACHED */ |
| 5549 | Py_CLEAR(SignalTuple); /* GCOV_NOT_REACHED */ |
| 5550 | Py_CLEAR(DecimalTuple); /* GCOV_NOT_REACHED */ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5551 | #ifdef WITHOUT_THREADS |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5552 | Py_CLEAR(module_context); /* GCOV_NOT_REACHED */ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5553 | #else |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5554 | Py_CLEAR(default_context_template); /* GCOV_NOT_REACHED */ |
| 5555 | Py_CLEAR(tls_context_key); /* GCOV_NOT_REACHED */ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5556 | #endif |
Stefan Krah | b6405ef | 2012-03-23 14:46:48 +0100 | [diff] [blame] | 5557 | Py_CLEAR(basic_context_template); /* GCOV_NOT_REACHED */ |
| 5558 | Py_CLEAR(extended_context_template); /* GCOV_NOT_REACHED */ |
| 5559 | Py_CLEAR(m); /* GCOV_NOT_REACHED */ |
Stefan Krah | 1919b7e | 2012-03-21 18:25:23 +0100 | [diff] [blame] | 5560 | |
| 5561 | return NULL; /* GCOV_NOT_REACHED */ |
| 5562 | } |
| 5563 | |
| 5564 | |