Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 524b588 | 1995-01-04 19:10:35 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 31 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 32 | /* MPZ module */ |
| 33 | |
| 34 | /* This module provides an interface to an alternate Multi-Precision |
| 35 | library, GNU MP in this case */ |
| 36 | |
| 37 | /* XXX note: everywhere where mpz_size is called, |
| 38 | sizeof (limb) == sizeof (long) has been assumed. */ |
| 39 | |
| 40 | |
| 41 | /* MPZ objects */ |
| 42 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 43 | #include "Python.h" |
Guido van Rossum | a597dde | 1995-01-10 20:56:29 +0000 | [diff] [blame] | 44 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 45 | #include <assert.h> |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 46 | #include <sys/types.h> /* For size_t */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 47 | |
| 48 | /* |
| 49 | ** These are the cpp-flags used in this file... |
| 50 | ** |
| 51 | ** |
| 52 | ** MPZ_MDIV_BUG works around the mpz_m{div,mod,...} routines. |
| 53 | ** This bug has been fixed in a later release of |
| 54 | ** GMP. |
| 55 | ** |
| 56 | ** MPZ_GET_STR_BUG mpz_get_str corrupts memory, seems to be fixed |
| 57 | ** in a later release |
| 58 | ** |
| 59 | ** MPZ_DEBUG generates a bunch of diagnostic messages |
| 60 | ** |
| 61 | ** MPZ_SPARE_MALLOC if set, results in extra code that tries to |
| 62 | ** minimize the creation of extra objects. |
| 63 | ** |
| 64 | ** MPZ_TEST_DIV extra diagnostic output on stderr, when division |
| 65 | ** routines are involved |
| 66 | ** |
| 67 | ** MPZ_LIB_DOES_CHECKING if set, assumes that mpz library doesn't call |
| 68 | ** alloca with arg < 0 (when casted to a signed |
| 69 | ** integral type). |
| 70 | ** |
| 71 | ** MPZ_CONVERSIONS_AS_METHODS if set, presents the conversions as |
| 72 | ** methods. e.g., `mpz(5).long() == 5L' |
| 73 | ** Later, Guido provided an interface to the |
| 74 | ** standard functions. So this flag has no been |
| 75 | ** cleared, and `long(mpz(5)) == 5L' |
| 76 | ** |
| 77 | ** MP_TEST_ALLOC If set, you would discover why MPZ_GET_STR_BUG |
| 78 | ** is needed |
| 79 | ** |
| 80 | ** MAKEDUMMYINT Must be set if dynamic linking will be used |
| 81 | */ |
| 82 | |
| 83 | |
| 84 | /* |
| 85 | ** IMHO, mpz_m{div,mod,divmod}() do the wrong things when the denominator < 0 |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 86 | ** This has been fixed with gmp release 2.0 |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 87 | */ |
| 88 | /*#define MPZ_MDIV_BUG fixed the (for me) nexessary parts in libgmp.a */ |
| 89 | /* |
| 90 | ** IMO, mpz_get_str() assumes a bit too large target space, if he doesn't |
| 91 | ** allocate it himself |
| 92 | */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 93 | |
| 94 | #include "gmp.h" |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 95 | #include "gmp-impl.h" |
| 96 | |
| 97 | #if __GNU_MP__ == 2 |
| 98 | #define GMP2 |
| 99 | #else |
| 100 | #define MPZ_GET_STR_BUG |
| 101 | #endif |
| 102 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 103 | typedef struct { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 104 | PyObject_HEAD |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 105 | MP_INT mpz; /* the actual number */ |
| 106 | } mpzobject; |
| 107 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 108 | staticforward PyTypeObject MPZtype; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 109 | |
| 110 | #define is_mpzobject(v) ((v)->ob_type == &MPZtype) |
| 111 | |
| 112 | static const char initialiser_name[] = "mpz"; |
| 113 | |
| 114 | /* #define MPZ_DEBUG */ |
| 115 | |
| 116 | static mpzobject * |
| 117 | newmpzobject() |
| 118 | { |
| 119 | mpzobject *mpzp; |
| 120 | |
| 121 | |
| 122 | #ifdef MPZ_DEBUG |
| 123 | fputs( "mpz_object() called...\n", stderr ); |
| 124 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 125 | mpzp = PyObject_NEW(mpzobject, &MPZtype); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 126 | if (mpzp == NULL) |
| 127 | return NULL; |
| 128 | |
| 129 | mpz_init(&mpzp->mpz); /* actual initialisation */ |
| 130 | return mpzp; |
| 131 | } /* newmpzobject() */ |
| 132 | |
| 133 | #ifdef MPZ_GET_STR_BUG |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 134 | #include "longlong.h" |
| 135 | #endif /* def MPZ_GET_STR_BUG */ |
| 136 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 137 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 138 | mpz_format(objp, base, withname) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 139 | PyObject *objp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 140 | int base; |
| 141 | unsigned char withname; |
| 142 | { |
| 143 | mpzobject *mpzp = (mpzobject *)objp; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 144 | PyStringObject *strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 145 | int i; |
| 146 | int cmpres; |
| 147 | int taglong; |
| 148 | char *cp; |
| 149 | char prefix[5], *tcp; |
| 150 | |
| 151 | |
| 152 | tcp = &prefix[0]; |
| 153 | |
| 154 | if (mpzp == NULL || !is_mpzobject(mpzp)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 155 | PyErr_BadInternalCall(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 156 | return NULL; |
| 157 | } |
| 158 | |
| 159 | assert(base >= 2 && base <= 36); |
| 160 | |
| 161 | if (withname) |
| 162 | i = strlen(initialiser_name) + 2; /* e.g. 'mpz(' + ')' */ |
| 163 | else |
| 164 | i = 0; |
| 165 | |
| 166 | if ((cmpres = mpz_cmp_si(&mpzp->mpz, 0L)) == 0) |
| 167 | base = 10; /* '0' in every base, right */ |
| 168 | else if (cmpres < 0) { |
| 169 | *tcp++ = '-'; |
| 170 | i += 1; /* space to hold '-' */ |
| 171 | } |
| 172 | |
| 173 | #ifdef MPZ_DEBUG |
| 174 | fprintf(stderr, "mpz_format: mpz_sizeinbase %d\n", |
| 175 | (int)mpz_sizeinbase(&mpzp->mpz, base)); |
| 176 | #endif /* def MPZ_DEBUG */ |
| 177 | #ifdef MPZ_GET_STR_BUG |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 178 | #ifdef GMP2 |
| 179 | i += ((size_t) abs(mpzp->mpz._mp_size) * BITS_PER_MP_LIMB |
| 180 | * __mp_bases[base].chars_per_bit_exactly) + 1; |
| 181 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 182 | i += ((size_t) abs(mpzp->mpz.size) * BITS_PER_MP_LIMB |
| 183 | * __mp_bases[base].chars_per_bit_exactly) + 1; |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 184 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 185 | #else /* def MPZ_GET_STR_BUG */ |
| 186 | i += (int)mpz_sizeinbase(&mpzp->mpz, base); |
| 187 | #endif /* def MPZ_GET_STR_BUG else */ |
| 188 | |
| 189 | if (base == 16) { |
| 190 | *tcp++ = '0'; |
| 191 | *tcp++ = 'x'; |
| 192 | i += 2; /* space to hold '0x' */ |
| 193 | } |
| 194 | else if (base == 8) { |
| 195 | *tcp++ = '0'; |
| 196 | i += 1; /* space to hold the extra '0' */ |
| 197 | } |
| 198 | else if (base > 10) { |
| 199 | *tcp++ = '0' + base / 10; |
| 200 | *tcp++ = '0' + base % 10; |
| 201 | *tcp++ = '#'; |
| 202 | i += 3; /* space to hold e.g. '12#' */ |
| 203 | } |
| 204 | else if (base < 10) { |
| 205 | *tcp++ = '0' + base; |
| 206 | *tcp++ = '#'; |
| 207 | i += 2; /* space to hold e.g. '6#' */ |
| 208 | } |
| 209 | |
| 210 | /* |
| 211 | ** the following code looks if we need a 'L' attached to the number |
| 212 | ** it will also attach an 'L' to the value -0x80000000 |
| 213 | */ |
| 214 | taglong = 0; |
| 215 | if (mpz_size(&mpzp->mpz) > 1 |
| 216 | || (long)mpz_get_ui(&mpzp->mpz) < 0L) { |
| 217 | taglong = 1; |
| 218 | i += 1; /* space to hold 'L' */ |
| 219 | } |
| 220 | |
| 221 | #ifdef MPZ_DEBUG |
| 222 | fprintf(stderr, "mpz_format: requesting string size %d\n", i); |
| 223 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 224 | if ((strobjp = |
| 225 | (PyStringObject *)PyString_FromStringAndSize((char *)0, i)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 226 | == NULL) |
| 227 | return NULL; |
| 228 | |
| 229 | /* get the beginning of the string memory and start copying things */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 230 | cp = PyString_AS_STRING(strobjp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 231 | if (withname) { |
| 232 | strcpy(cp, initialiser_name); |
| 233 | cp += strlen(initialiser_name); |
| 234 | *cp++ = '('; /*')'*/ |
| 235 | } |
| 236 | |
| 237 | /* copy the already prepared prefix; e.g. sign and base indicator */ |
| 238 | *tcp = '\0'; |
| 239 | strcpy(cp, prefix); |
| 240 | cp += tcp - prefix; |
| 241 | |
| 242 | /* since' we have the sign already, let the lib think it's a positive |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 243 | number */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 244 | if (cmpres < 0) |
| 245 | mpz_neg(&mpzp->mpz,&mpzp->mpz); /* hack Hack HAck HACk HACK */ |
| 246 | (void)mpz_get_str(cp, base, &mpzp->mpz); |
| 247 | if (cmpres < 0) |
| 248 | mpz_neg(&mpzp->mpz,&mpzp->mpz); /* hack Hack HAck HACk HACK */ |
| 249 | #ifdef MPZ_DEBUG |
| 250 | fprintf(stderr, "mpz_format: base (ultim) %d, mpz_get_str: %s\n", |
| 251 | base, cp); |
| 252 | #endif /* def MPZ_DEBUG */ |
| 253 | cp += strlen(cp); |
| 254 | |
| 255 | if (taglong) |
| 256 | *cp++ = 'L'; |
| 257 | if (withname) |
| 258 | *cp++ = /*'('*/ ')'; |
| 259 | |
| 260 | *cp = '\0'; |
| 261 | |
| 262 | #ifdef MPZ_DEBUG |
| 263 | fprintf(stderr, |
| 264 | "mpz_format: cp (str end) 0x%x, begin 0x%x, diff %d, i %d\n", |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 265 | cp, PyString_AS_STRING(strobjp), |
| 266 | cp - PyString_AS_STRING(strobjp), i); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 267 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 268 | assert(cp - PyString_AS_STRING(strobjp) <= i); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 269 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 270 | if (cp - PyString_AS_STRING(strobjp) != i) { |
| 271 | strobjp->ob_size -= i - (cp - PyString_AS_STRING(strobjp)); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 272 | } |
| 273 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 274 | return (PyObject *)strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 275 | } /* mpz_format() */ |
| 276 | |
| 277 | /* MPZ methods */ |
| 278 | |
| 279 | static void |
| 280 | mpz_dealloc(mpzp) |
| 281 | mpzobject *mpzp; |
| 282 | { |
| 283 | #ifdef MPZ_DEBUG |
| 284 | fputs( "mpz_dealloc() called...\n", stderr ); |
| 285 | #endif /* def MPZ_DEBUG */ |
| 286 | mpz_clear(&mpzp->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 287 | PyMem_DEL(mpzp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 288 | } /* mpz_dealloc() */ |
| 289 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 290 | |
| 291 | /* pointers to frequently used values 0, 1 and -1 */ |
| 292 | static mpzobject *mpz_value_zero, *mpz_value_one, *mpz_value_mone; |
| 293 | |
| 294 | static int |
| 295 | mpz_compare(a, b) |
| 296 | mpzobject *a, *b; |
| 297 | { |
| 298 | int cmpres; |
| 299 | |
| 300 | |
| 301 | /* guido sez it's better to return -1, 0 or 1 */ |
| 302 | return (cmpres = mpz_cmp( &a->mpz, &b->mpz )) == 0 ? 0 |
| 303 | : cmpres > 0 ? 1 : -1; |
| 304 | } /* mpz_compare() */ |
| 305 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 306 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 307 | mpz_addition(a, b) |
| 308 | mpzobject *a; |
| 309 | mpzobject *b; |
| 310 | { |
| 311 | mpzobject *z; |
| 312 | |
| 313 | |
| 314 | #ifdef MPZ_SPARE_MALLOC |
| 315 | if (mpz_cmp_ui(&a->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 316 | Py_INCREF(b); |
| 317 | return (PyObject *)b; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 321 | Py_INCREF(a); |
| 322 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 323 | } |
| 324 | #endif /* def MPZ_SPARE_MALLOC */ |
| 325 | |
| 326 | if ((z = newmpzobject()) == NULL) |
| 327 | return NULL; |
| 328 | |
| 329 | mpz_add(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 330 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 331 | } /* mpz_addition() */ |
| 332 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 333 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 334 | mpz_substract(a, b) |
| 335 | mpzobject *a; |
| 336 | mpzobject *b; |
| 337 | { |
| 338 | mpzobject *z; |
| 339 | |
| 340 | |
| 341 | #ifdef MPZ_SPARE_MALLOC |
| 342 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 343 | Py_INCREF(a); |
| 344 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 345 | } |
| 346 | #endif /* MPZ_SPARE_MALLOC */ |
| 347 | |
| 348 | if ((z = newmpzobject()) == NULL) |
| 349 | return NULL; |
| 350 | |
| 351 | mpz_sub(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 352 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 353 | } /* mpz_substract() */ |
| 354 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 355 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 356 | mpz_multiply(a, b) |
| 357 | mpzobject *a; |
| 358 | mpzobject *b; |
| 359 | { |
| 360 | #ifdef MPZ_SPARE_MALLOC |
| 361 | int cmpres; |
| 362 | #endif /* def MPZ_SPARE_MALLOC */ |
| 363 | mpzobject *z; |
| 364 | |
| 365 | |
| 366 | #ifdef MPZ_SPARE_MALLOC |
| 367 | if ((cmpres = mpz_cmp_ui(&a->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 368 | Py_INCREF(mpz_value_zero); |
| 369 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 370 | } |
| 371 | if (cmpres > 0 && mpz_cmp_ui(&a->mpz, (unsigned long int)1) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 372 | Py_INCREF(b); |
| 373 | return (PyObject *)b; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long_int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 377 | Py_INCREF(mpz_value_zero); |
| 378 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 379 | } |
| 380 | if (cmpres > 0 && mpz_cmp_ui(&b->mpz, (unsigned long int)1) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 381 | Py_INCREF(a); |
| 382 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 383 | } |
| 384 | #endif /* MPZ_SPARE_MALLOC */ |
| 385 | |
| 386 | if ((z = newmpzobject()) == NULL) |
| 387 | return NULL; |
| 388 | |
| 389 | mpz_mul( &z->mpz, &a->mpz, &b->mpz ); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 390 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 391 | |
| 392 | } /* mpz_multiply() */ |
| 393 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 394 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 395 | mpz_divide(a, b) |
| 396 | mpzobject *a; |
| 397 | mpzobject *b; |
| 398 | { |
| 399 | #ifdef MPZ_SPARE_MALLOC |
| 400 | int cmpres; |
| 401 | #endif /* def MPZ_SPARE_MALLOC */ |
| 402 | mpzobject *z; |
| 403 | |
| 404 | |
| 405 | if (( |
| 406 | #ifdef MPZ_SPARE_MALLOC |
| 407 | cmpres = |
| 408 | #endif /* def MPZ_SPARE_MALLOC */ |
| 409 | mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 410 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz./ by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 411 | return NULL; |
| 412 | } |
| 413 | #ifdef MPZ_SPARE_MALLOC |
| 414 | if (cmpres > 0 && mpz_cmp_ui(&b->mpz(unsigned long int)1) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 415 | Py_INCREF(a); |
| 416 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 417 | } |
| 418 | #endif /* def MPZ_SPARE_MALLOC */ |
| 419 | |
| 420 | if ((z = newmpzobject()) == NULL) |
| 421 | return NULL; |
| 422 | |
| 423 | #ifdef MPZ_TEST_DIV |
| 424 | fputs("mpz_divide: div result", stderr); |
| 425 | mpz_div(&z->mpz, &a->mpz, &b->mpz); |
| 426 | mpz_out_str(stderr, 10, &z->mpz); |
| 427 | putc('\n', stderr); |
| 428 | #endif /* def MPZ_TEST_DIV */ |
| 429 | #ifdef MPZ_MDIV_BUG |
| 430 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 431 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0)) { |
| 432 | /* |
| 433 | ** numerator has other sign than denominator: we have |
| 434 | ** to look at the remainder for a correction, since mpz_mdiv |
| 435 | ** also calls mpz_divmod, I can as well do it myself |
| 436 | */ |
| 437 | MP_INT tmpmpz; |
| 438 | |
| 439 | |
| 440 | mpz_init(&tmpmpz); |
| 441 | mpz_divmod(&z->mpz, &tmpmpz, &a->mpz, &b->mpz); |
| 442 | |
| 443 | if (mpz_cmp_ui(&tmpmpz, (unsigned long int)0) != 0) |
| 444 | mpz_sub_ui(&z->mpz, &z->mpz, (unsigned long int)1); |
| 445 | |
| 446 | mpz_clear(&tmpmpz); |
| 447 | } |
| 448 | else |
| 449 | mpz_div(&z->mpz, &a->mpz, &b->mpz); |
| 450 | /* the ``naive'' implementation does it right for operands |
| 451 | having the same sign */ |
| 452 | |
| 453 | #else /* def MPZ_MDIV_BUG */ |
| 454 | mpz_mdiv(&z->mpz, &a->mpz, &b->mpz); |
| 455 | #endif /* def MPZ_MDIV_BUG else */ |
| 456 | #ifdef MPZ_TEST_DIV |
| 457 | fputs("mpz_divide: mdiv result", stderr); |
| 458 | mpz_out_str(stderr, 10, &z->mpz); |
| 459 | putc('\n', stderr); |
| 460 | #endif /* def MPZ_TEST_DIV */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 461 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 462 | |
| 463 | } /* mpz_divide() */ |
| 464 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 465 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 466 | mpz_remainder(a, b) |
| 467 | mpzobject *a; |
| 468 | mpzobject *b; |
| 469 | { |
| 470 | #ifdef MPZ_SPARE_MALLOC |
| 471 | int cmpres; |
| 472 | #endif /* def MPZ_SPARE_MALLOC */ |
| 473 | mpzobject *z; |
| 474 | |
| 475 | |
| 476 | if (( |
| 477 | #ifdef MPZ_SPARE_MALLOC |
| 478 | cmpres = |
| 479 | #endif /* def MPZ_SPARE_MALLOC */ |
| 480 | mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 481 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz.% by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 482 | return NULL; |
| 483 | } |
| 484 | #ifdef MPZ_SPARE_MALLOC |
| 485 | if (cmpres > 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 486 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)2)) == 0) |
| 487 | { |
| 488 | Py_INCREF(mpz_value_one); |
| 489 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 490 | } |
| 491 | if (cmpres < 0) { |
| 492 | /* b must be 1 now */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 493 | Py_INCREF(mpz_value_zero); |
| 494 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 495 | } |
| 496 | } |
| 497 | #endif /* def MPZ_SPARE_MALLOC */ |
| 498 | |
| 499 | if ((z = newmpzobject()) == NULL) |
| 500 | return NULL; |
| 501 | |
| 502 | #ifdef MPZ_TEST_DIV |
| 503 | fputs("mpz_remain: mod result", stderr); |
| 504 | mpz_mod(&z->mpz, &a->mpz, &b->mpz); |
| 505 | mpz_out_str(stderr, 10, &z->mpz); |
| 506 | putc('\n', stderr); |
| 507 | #endif /* def MPZ_TEST_DIV */ |
| 508 | #ifdef MPZ_MDIV_BUG |
| 509 | |
| 510 | /* the ``naive'' implementation does it right for operands |
| 511 | having the same sign */ |
| 512 | mpz_mod(&z->mpz, &a->mpz, &b->mpz); |
| 513 | |
| 514 | /* assumption: z, a and b all point to different locations */ |
| 515 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 516 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0) |
| 517 | && mpz_cmp_ui(&z->mpz, (unsigned long int)0) != 0) |
| 518 | mpz_add(&z->mpz, &z->mpz, &b->mpz); |
| 519 | /* |
| 520 | ** numerator has other sign than denominator: we have |
| 521 | ** to look at the remainder for a correction, since mpz_mdiv |
| 522 | ** also calls mpz_divmod, I can as well do it myself |
| 523 | */ |
| 524 | #else /* def MPZ_MDIV_BUG */ |
| 525 | mpz_mmod(&z->mpz, &a->mpz, &b->mpz); |
| 526 | #endif /* def MPZ_MDIV_BUG else */ |
| 527 | #ifdef MPZ_TEST_DIV |
| 528 | fputs("mpz_remain: mmod result", stderr); |
| 529 | mpz_out_str(stderr, 10, &z->mpz); |
| 530 | putc('\n', stderr); |
| 531 | #endif /* def MPZ_TEST_DIV */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 532 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 533 | |
| 534 | } /* mpz_remainder() */ |
| 535 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 536 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 537 | mpz_div_and_mod(a, b) |
| 538 | mpzobject *a; |
| 539 | mpzobject *b; |
| 540 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 541 | PyObject *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 542 | mpzobject *x = NULL, *y = NULL; |
| 543 | |
| 544 | |
| 545 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 546 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz.divmod by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 547 | return NULL; |
| 548 | } |
| 549 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 550 | if ((z = PyTuple_New(2)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 551 | || (x = newmpzobject()) == NULL |
| 552 | || (y = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 553 | Py_XDECREF(z); |
| 554 | Py_XDECREF(x); |
| 555 | Py_XDECREF(y); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 556 | return NULL; |
| 557 | } |
| 558 | |
| 559 | #ifdef MPZ_TEST_DIV |
| 560 | fputs("mpz_divmod: dm result", stderr); |
| 561 | mpz_divmod(&x->mpz, &y->mpz, &a->mpz, &b->mpz); |
| 562 | mpz_out_str(stderr, 10, &x->mpz); |
| 563 | putc('\n', stderr); |
| 564 | mpz_out_str(stderr, 10, &y->mpz); |
| 565 | putc('\n', stderr); |
| 566 | #endif /* def MPZ_TEST_DIV */ |
| 567 | #ifdef MPZ_MDIV_BUG |
| 568 | mpz_divmod(&x->mpz, &y->mpz, &a->mpz, &b->mpz); |
| 569 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 570 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0) |
| 571 | && mpz_cmp_ui(&y->mpz, (unsigned long int)0) != 0) { |
| 572 | /* |
| 573 | ** numerator has other sign than denominator: we have |
| 574 | ** to look at the remainder for a correction. |
| 575 | */ |
| 576 | mpz_add(&y->mpz, &y->mpz, &b->mpz); |
| 577 | mpz_sub_ui(&x->mpz, &x->mpz, (unsigned long int)1); |
| 578 | } |
| 579 | #else /* def MPZ_MDIV_BUG */ |
| 580 | mpz_mdivmod( &x->mpz, &y->mpz, &a->mpz, &b->mpz ); |
| 581 | #endif /* def MPZ_MDIV_BUG else */ |
| 582 | #ifdef MPZ_TEST_DIV |
| 583 | fputs("mpz_divmod: mdm result", stderr); |
| 584 | mpz_out_str(stderr, 10, &x->mpz); |
| 585 | putc('\n', stderr); |
| 586 | mpz_out_str(stderr, 10, &y->mpz); |
| 587 | putc('\n', stderr); |
| 588 | #endif /* def MPZ_TEST_DIV */ |
| 589 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 590 | (void)PyTuple_SetItem(z, 0, (PyObject *)x); |
| 591 | (void)PyTuple_SetItem(z, 1, (PyObject *)y); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 592 | |
| 593 | return z; |
| 594 | } /* mpz_div_and_mod() */ |
| 595 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 596 | static PyObject * |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 597 | mpz_power(a, b, m) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 598 | mpzobject *a; |
| 599 | mpzobject *b; |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 600 | mpzobject *m; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 601 | { |
| 602 | mpzobject *z; |
| 603 | int cmpres; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 604 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 605 | if ((PyObject *)m != Py_None) { |
| 606 | mpzobject *z2; |
| 607 | Py_INCREF(Py_None); |
| 608 | z=(mpzobject *)mpz_power(a, b, (mpzobject *)Py_None); |
| 609 | Py_DECREF(Py_None); |
| 610 | if (z==NULL) return((PyObject *)z); |
| 611 | z2=(mpzobject *)mpz_remainder(z, m); |
| 612 | Py_DECREF(z); |
| 613 | return((PyObject *)z2); |
| 614 | } |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 615 | |
| 616 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 617 | /* the gnu-mp lib sets pow(0,0) to 0, we to 1 */ |
| 618 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 619 | Py_INCREF(mpz_value_one); |
| 620 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 624 | PyErr_SetString(PyExc_ValueError, |
| 625 | "mpz.pow to negative exponent"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 626 | return NULL; |
| 627 | } |
| 628 | |
| 629 | if ((cmpres = mpz_cmp_ui(&a->mpz, (unsigned long int)0)) == 0) { |
| 630 | /* the base is 0 */ |
| 631 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 632 | Py_INCREF(mpz_value_zero); |
| 633 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 634 | } |
| 635 | else if (cmpres > 0 |
| 636 | && mpz_cmp_ui(&a->mpz, (unsigned long int)1) == 0) { |
| 637 | /* the base is 1 */ |
| 638 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 639 | Py_INCREF(mpz_value_one); |
| 640 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 641 | } |
| 642 | else if (cmpres < 0 |
| 643 | && mpz_cmp_si(&a->mpz, (long int)-1) == 0) { |
| 644 | |
| 645 | MP_INT tmpmpz; |
| 646 | /* the base is -1: pow(-1, any) == 1,-1 for even,uneven b */ |
| 647 | /* XXX this code needs to be optimized: what's better? |
| 648 | mpz_mmod_ui or mpz_mod_2exp, I choose for the latter |
| 649 | for *un*obvious reasons */ |
| 650 | |
| 651 | /* is the exponent even? */ |
| 652 | mpz_init(&tmpmpz); |
| 653 | |
| 654 | /* look to the remainder after a division by (1 << 1) */ |
| 655 | mpz_mod_2exp(&tmpmpz, &b->mpz, (unsigned long int)1); |
| 656 | |
| 657 | if (mpz_cmp_ui(&tmpmpz, (unsigned int)0) == 0) { |
| 658 | mpz_clear(&tmpmpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 659 | Py_INCREF(mpz_value_one); |
| 660 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 661 | } |
| 662 | mpz_clear(&tmpmpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 663 | Py_INCREF(mpz_value_mone); |
| 664 | return (PyObject *)mpz_value_mone; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | #ifdef MPZ_LIB_DOES_CHECKING |
| 668 | /* check if it's doable: sizeof(exp) > sizeof(long) && |
| 669 | abs(base) > 1 ?? --> No Way */ |
| 670 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 671 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 672 | #else /* def MPZ_LIB_DOES_CHECKING */ |
| 673 | /* wet finger method */ |
| 674 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0x10000) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 675 | PyErr_SetString(PyExc_ValueError, |
| 676 | "mpz.pow outrageous exponent"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 677 | return NULL; |
| 678 | } |
| 679 | #endif /* def MPZ_LIB_DOES_CHECKING else */ |
| 680 | |
| 681 | if ((z = newmpzobject()) == NULL) |
| 682 | return NULL; |
| 683 | |
| 684 | mpz_pow_ui(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
| 685 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 686 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 687 | } /* mpz_power() */ |
| 688 | |
| 689 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 690 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 691 | mpz_negative(v) |
| 692 | mpzobject *v; |
| 693 | { |
| 694 | mpzobject *z; |
| 695 | |
| 696 | |
| 697 | #ifdef MPZ_SPARE_MALLOC |
| 698 | if (mpz_cmp_ui(&v->mpz, (unsigned long int)0) == 0) { |
| 699 | /* -0 == 0 */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 700 | Py_INCREF(v); |
| 701 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 702 | } |
| 703 | #endif /* def MPZ_SPARE_MALLOC */ |
| 704 | |
| 705 | if ((z = newmpzobject()) == NULL) |
| 706 | return NULL; |
| 707 | |
| 708 | mpz_neg(&z->mpz, &v->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 709 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 710 | } /* mpz_negative() */ |
| 711 | |
| 712 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 713 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 714 | mpz_positive(v) |
| 715 | mpzobject *v; |
| 716 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 717 | Py_INCREF(v); |
| 718 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 719 | } /* mpz_positive() */ |
| 720 | |
| 721 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 722 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 723 | mpz_absolute(v) |
| 724 | mpzobject *v; |
| 725 | { |
| 726 | mpzobject *z; |
| 727 | |
| 728 | |
| 729 | if (mpz_cmp_ui(&v->mpz, (unsigned long int)0) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 730 | Py_INCREF(v); |
| 731 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 732 | } |
| 733 | |
| 734 | if ((z = newmpzobject()) == NULL) |
| 735 | return NULL; |
| 736 | |
| 737 | mpz_neg(&z->mpz, &v->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 738 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 739 | } /* mpz_absolute() */ |
| 740 | |
| 741 | static int |
| 742 | mpz_nonzero(v) |
| 743 | mpzobject *v; |
| 744 | { |
| 745 | return mpz_cmp_ui(&v->mpz, (unsigned long int)0) != 0; |
| 746 | } /* mpz_nonzero() */ |
| 747 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 748 | static PyObject * |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 749 | py_mpz_invert(v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 750 | mpzobject *v; |
| 751 | { |
| 752 | mpzobject *z; |
| 753 | |
| 754 | |
| 755 | /* I think mpz_com does exactly what needed */ |
| 756 | if ((z = newmpzobject()) == NULL) |
| 757 | return NULL; |
| 758 | |
| 759 | mpz_com(&z->mpz, &v->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 760 | return (PyObject *)z; |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 761 | } /* py_mpz_invert() */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 762 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 763 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 764 | mpz_lshift(a, b) |
| 765 | mpzobject *a; |
| 766 | mpzobject *b; |
| 767 | { |
| 768 | int cmpres; |
| 769 | mpzobject *z; |
| 770 | |
| 771 | |
| 772 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 773 | /* a << 0 == a */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 774 | Py_INCREF(a); |
| 775 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 776 | } |
| 777 | |
| 778 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 779 | PyErr_SetString(PyExc_ValueError, |
| 780 | "mpz.<< negative shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 781 | return NULL; |
| 782 | } |
| 783 | |
| 784 | #ifdef MPZ_LIB_DOES_CHECKING |
| 785 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 786 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 787 | #else /* def MPZ_LIB_DOES_CHECKING */ |
| 788 | /* wet finger method */ |
| 789 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0x10000) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 790 | PyErr_SetString(PyExc_ValueError, |
| 791 | "mpz.<< outrageous shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 792 | return NULL; |
| 793 | } |
| 794 | #endif /* def MPZ_LIB_DOES_CHECKING else */ |
| 795 | |
| 796 | if ((z = newmpzobject()) == NULL) |
| 797 | return NULL; |
| 798 | |
| 799 | mpz_mul_2exp(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 800 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 801 | } /* mpz_lshift() */ |
| 802 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 803 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 804 | mpz_rshift(a, b) |
| 805 | mpzobject *a; |
| 806 | mpzobject *b; |
| 807 | { |
| 808 | int cmpres; |
| 809 | mpzobject *z; |
| 810 | |
| 811 | |
| 812 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 813 | /* a >> 0 == a */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 814 | Py_INCREF(a); |
| 815 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 816 | } |
| 817 | |
| 818 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 819 | PyErr_SetString(PyExc_ValueError, |
| 820 | "mpz.>> negative shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 821 | return NULL; |
| 822 | } |
| 823 | |
| 824 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 825 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 826 | |
| 827 | if ((z = newmpzobject()) == NULL) |
| 828 | return NULL; |
| 829 | |
| 830 | mpz_div_2exp(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 831 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 832 | } /* mpz_rshift() */ |
| 833 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 834 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 835 | mpz_andfunc(a, b) |
| 836 | mpzobject *a; |
| 837 | mpzobject *b; |
| 838 | { |
| 839 | mpzobject *z; |
| 840 | |
| 841 | |
| 842 | if ((z = newmpzobject()) == NULL) |
| 843 | return NULL; |
| 844 | |
| 845 | mpz_and(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 846 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 847 | } /* mpz_andfunc() */ |
| 848 | |
| 849 | /* hack Hack HAck HACk HACK, XXX this code is dead slow */ |
| 850 | void |
| 851 | mpz_xor(res, op1, op2) |
| 852 | MP_INT *res; |
| 853 | const MP_INT *op1; |
| 854 | const MP_INT *op2; |
| 855 | { |
| 856 | MP_INT tmpmpz; |
| 857 | |
| 858 | mpz_init(&tmpmpz); |
| 859 | |
| 860 | mpz_and(res, op1, op2); |
| 861 | mpz_com(&tmpmpz, res); |
| 862 | mpz_ior(res, op1, op2); |
| 863 | mpz_and(res, res, &tmpmpz); |
| 864 | |
| 865 | mpz_clear(&tmpmpz); |
| 866 | } /* mpz_xor() HACK */ |
| 867 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 868 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 869 | mpz_xorfunc(a, b) |
| 870 | mpzobject *a; |
| 871 | mpzobject *b; |
| 872 | { |
| 873 | mpzobject *z; |
| 874 | |
| 875 | |
| 876 | if ((z = newmpzobject()) == NULL) |
| 877 | return NULL; |
| 878 | |
| 879 | mpz_xor(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 880 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 881 | } /* mpz_xorfunc() */ |
| 882 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 883 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 884 | mpz_orfunc(a, b) |
| 885 | mpzobject *a; |
| 886 | mpzobject *b; |
| 887 | { |
| 888 | mpzobject *z; |
| 889 | |
| 890 | |
| 891 | if ((z = newmpzobject()) == NULL) |
| 892 | return NULL; |
| 893 | |
| 894 | mpz_ior(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 895 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 896 | } /* mpz_orfunc() */ |
| 897 | |
| 898 | /* MPZ initialisation */ |
| 899 | |
| 900 | #include "longintrepr.h" |
| 901 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 902 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 903 | MPZ_mpz(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 904 | PyObject *self; |
| 905 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 906 | { |
| 907 | mpzobject *mpzp; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 908 | PyObject *objp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 909 | |
| 910 | |
| 911 | #ifdef MPZ_DEBUG |
| 912 | fputs("MPZ_mpz() called...\n", stderr); |
| 913 | #endif /* def MPZ_DEBUG */ |
| 914 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 915 | if (!PyArg_Parse(args, "O", &objp)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 916 | return NULL; |
| 917 | |
| 918 | /* at least we know it's some object */ |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 919 | /* note DON't Py_DECREF args NEITHER objp */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 920 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 921 | if (PyInt_Check(objp)) { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 922 | long lval; |
| 923 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 924 | if (!PyArg_Parse(objp, "l", &lval)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 925 | return NULL; |
| 926 | |
| 927 | if (lval == (long)0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 928 | Py_INCREF(mpz_value_zero); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 929 | mpzp = mpz_value_zero; |
| 930 | } |
| 931 | else if (lval == (long)1) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 932 | Py_INCREF(mpz_value_one); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 933 | mpzp = mpz_value_one; |
| 934 | } |
| 935 | else if ((mpzp = newmpzobject()) == NULL) |
| 936 | return NULL; |
| 937 | else mpz_set_si(&mpzp->mpz, lval); |
| 938 | } |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 939 | else if (PyLong_Check(objp)) { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 940 | MP_INT mplongdigit; |
| 941 | int i; |
| 942 | unsigned char isnegative; |
| 943 | |
| 944 | |
| 945 | if ((mpzp = newmpzobject()) == NULL) |
| 946 | return NULL; |
| 947 | |
| 948 | mpz_set_si(&mpzp->mpz, 0L); |
| 949 | mpz_init(&mplongdigit); |
| 950 | |
| 951 | /* how we're gonna handle this? */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 952 | if ((isnegative = |
| 953 | ((i = ((PyLongObject *)objp)->ob_size) < 0) )) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 954 | i = -i; |
| 955 | |
| 956 | while (i--) { |
| 957 | mpz_set_ui(&mplongdigit, |
| 958 | (unsigned long) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 959 | ((PyLongObject *)objp)->ob_digit[i]); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 960 | mpz_mul_2exp(&mplongdigit,&mplongdigit, |
| 961 | (unsigned long int)i * SHIFT); |
| 962 | mpz_ior(&mpzp->mpz, &mpzp->mpz, &mplongdigit); |
| 963 | } |
| 964 | |
| 965 | if (isnegative) |
| 966 | mpz_neg(&mpzp->mpz, &mpzp->mpz); |
| 967 | |
| 968 | /* get rid of allocation for tmp variable */ |
| 969 | mpz_clear(&mplongdigit); |
| 970 | } |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 971 | else if (PyString_Check(objp)) { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 972 | char *cp; |
| 973 | int len; |
| 974 | MP_INT mplongdigit; |
| 975 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 976 | if (!PyArg_Parse(objp, "s#", &cp, &len)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 977 | return NULL; |
| 978 | |
| 979 | if ((mpzp = newmpzobject()) == NULL) |
| 980 | return NULL; |
| 981 | |
| 982 | mpz_set_si(&mpzp->mpz, 0L); |
| 983 | mpz_init(&mplongdigit); |
| 984 | |
| 985 | /* let's do it the same way as with the long conversion: |
| 986 | without thinking how it can be faster (-: :-) */ |
| 987 | |
| 988 | cp += len; |
| 989 | while (len--) { |
| 990 | mpz_set_ui(&mplongdigit, (unsigned long)*--cp ); |
| 991 | mpz_mul_2exp(&mplongdigit,&mplongdigit, |
| 992 | (unsigned long int)len * 8); |
| 993 | mpz_ior(&mpzp->mpz, &mpzp->mpz, &mplongdigit); |
| 994 | } |
| 995 | |
| 996 | /* get rid of allocation for tmp variable */ |
| 997 | mpz_clear(&mplongdigit); |
| 998 | } |
| 999 | else if (is_mpzobject(objp)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1000 | Py_INCREF(objp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1001 | mpzp = (mpzobject *)objp; |
| 1002 | } |
| 1003 | else { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1004 | PyErr_SetString(PyExc_TypeError, |
| 1005 | "mpz.mpz() expects integer, long, string or mpz object argument"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1006 | return NULL; |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | #ifdef MPZ_DEBUG |
| 1011 | fputs("MPZ_mpz: created mpz=", stderr); |
| 1012 | mpz_out_str(stderr, 10, &mpzp->mpz); |
| 1013 | putc('\n', stderr); |
| 1014 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1015 | return (PyObject *)mpzp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1016 | } /* MPZ_mpz() */ |
| 1017 | |
| 1018 | static mpzobject * |
| 1019 | mpz_mpzcoerce(z) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1020 | PyObject *z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1021 | { |
| 1022 | /* shortcut: 9 out of 10 times the type is already ok */ |
| 1023 | if (is_mpzobject(z)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1024 | Py_INCREF(z); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1025 | return (mpzobject *)z; /* coercion succeeded */ |
| 1026 | } |
| 1027 | |
| 1028 | /* what types do we accept?: intobjects and longobjects */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1029 | if (PyInt_Check(z) || PyLong_Check(z)) |
| 1030 | return (mpzobject *)MPZ_mpz((PyObject *)NULL, z); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1031 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1032 | PyErr_SetString(PyExc_TypeError, |
| 1033 | "number coercion (to mpzobject) failed"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1034 | return NULL; |
| 1035 | } /* mpz_mpzcoerce() */ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1036 | |
| 1037 | /* Forward */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1038 | static void mpz_divm Py_PROTO((MP_INT *res, const MP_INT *num, |
| 1039 | const MP_INT *den, const MP_INT *mod)); |
Guido van Rossum | 67a5fdb | 1993-12-17 12:09:14 +0000 | [diff] [blame] | 1040 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1041 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1042 | MPZ_powm(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1043 | PyObject *self; |
| 1044 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1045 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1046 | PyObject *base, *exp, *mod; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1047 | mpzobject *mpzbase = NULL, *mpzexp = NULL, *mpzmod = NULL; |
| 1048 | mpzobject *z; |
| 1049 | int tstres; |
| 1050 | |
| 1051 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1052 | if (!PyArg_Parse(args, "(OOO)", &base, &exp, &mod)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1053 | return NULL; |
| 1054 | |
| 1055 | if ((mpzbase = mpz_mpzcoerce(base)) == NULL |
| 1056 | || (mpzexp = mpz_mpzcoerce(exp)) == NULL |
| 1057 | || (mpzmod = mpz_mpzcoerce(mod)) == NULL |
| 1058 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1059 | Py_XDECREF(mpzbase); |
| 1060 | Py_XDECREF(mpzexp); |
| 1061 | Py_XDECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1062 | return NULL; |
| 1063 | } |
| 1064 | |
| 1065 | if ((tstres=mpz_cmp_ui(&mpzexp->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1066 | Py_INCREF(mpz_value_one); |
| 1067 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1068 | } |
| 1069 | |
| 1070 | if (tstres < 0) { |
| 1071 | MP_INT absexp; |
| 1072 | /* negative exp */ |
| 1073 | |
| 1074 | mpz_init_set(&absexp, &mpzexp->mpz); |
| 1075 | mpz_abs(&absexp, &absexp); |
| 1076 | mpz_powm(&z->mpz, &mpzbase->mpz, &absexp, &mpzmod->mpz); |
| 1077 | |
| 1078 | mpz_divm(&z->mpz, &mpz_value_one->mpz, &z->mpz, &mpzmod->mpz); |
| 1079 | |
| 1080 | mpz_clear(&absexp); |
| 1081 | } |
| 1082 | else { |
| 1083 | mpz_powm(&z->mpz, &mpzbase->mpz, &mpzexp->mpz, &mpzmod->mpz); |
| 1084 | } |
| 1085 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1086 | Py_DECREF(mpzbase); |
| 1087 | Py_DECREF(mpzexp); |
| 1088 | Py_DECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1089 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1090 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1091 | } /* MPZ_powm() */ |
| 1092 | |
| 1093 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1094 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1095 | MPZ_gcd(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1096 | PyObject *self; |
| 1097 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1098 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1099 | PyObject *op1, *op2; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1100 | mpzobject *mpzop1 = NULL, *mpzop2 = NULL; |
| 1101 | mpzobject *z; |
| 1102 | |
| 1103 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1104 | if (!PyArg_Parse(args, "(OO)", &op1, &op2)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1105 | return NULL; |
| 1106 | |
| 1107 | if ((mpzop1 = mpz_mpzcoerce(op1)) == NULL |
| 1108 | || (mpzop2 = mpz_mpzcoerce(op2)) == NULL |
| 1109 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1110 | Py_XDECREF(mpzop1); |
| 1111 | Py_XDECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1112 | return NULL; |
| 1113 | } |
| 1114 | |
| 1115 | /* ok, we have three mpzobjects, and an initialised result holder */ |
| 1116 | mpz_gcd(&z->mpz, &mpzop1->mpz, &mpzop2->mpz); |
| 1117 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1118 | Py_DECREF(mpzop1); |
| 1119 | Py_DECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1120 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1121 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1122 | } /* MPZ_gcd() */ |
| 1123 | |
| 1124 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1125 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1126 | MPZ_gcdext(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1127 | PyObject *self; |
| 1128 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1129 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1130 | PyObject *op1, *op2, *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1131 | mpzobject *mpzop1 = NULL, *mpzop2 = NULL; |
| 1132 | mpzobject *g = NULL, *s = NULL, *t = NULL; |
| 1133 | |
| 1134 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1135 | if (!PyArg_Parse(args, "(OO)", &op1, &op2)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1136 | return NULL; |
| 1137 | |
| 1138 | if ((mpzop1 = mpz_mpzcoerce(op1)) == NULL |
| 1139 | || (mpzop2 = mpz_mpzcoerce(op2)) == NULL |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1140 | || (z = PyTuple_New(3)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1141 | || (g = newmpzobject()) == NULL |
| 1142 | || (s = newmpzobject()) == NULL |
| 1143 | || (t = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1144 | Py_XDECREF(mpzop1); |
| 1145 | Py_XDECREF(mpzop2); |
| 1146 | Py_XDECREF(z); |
| 1147 | Py_XDECREF(g); |
| 1148 | Py_XDECREF(s); |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1149 | /*Py_XDECREF(t);*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1150 | return NULL; |
| 1151 | } |
| 1152 | |
| 1153 | mpz_gcdext(&g->mpz, &s->mpz, &t->mpz, &mpzop1->mpz, &mpzop2->mpz); |
| 1154 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1155 | Py_DECREF(mpzop1); |
| 1156 | Py_DECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1157 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1158 | (void)PyTuple_SetItem(z, 0, (PyObject *)g); |
| 1159 | (void)PyTuple_SetItem(z, 1, (PyObject *)s); |
| 1160 | (void)PyTuple_SetItem(z, 2, (PyObject *)t); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1161 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1162 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1163 | } /* MPZ_gcdext() */ |
| 1164 | |
| 1165 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1166 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1167 | MPZ_sqrt(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1168 | PyObject *self; |
| 1169 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1170 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1171 | PyObject *op; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1172 | mpzobject *mpzop = NULL; |
| 1173 | mpzobject *z; |
| 1174 | |
| 1175 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1176 | if (!PyArg_Parse(args, "O", &op)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1177 | return NULL; |
| 1178 | |
| 1179 | if ((mpzop = mpz_mpzcoerce(op)) == NULL |
| 1180 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1181 | Py_XDECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1182 | return NULL; |
| 1183 | } |
| 1184 | |
| 1185 | mpz_sqrt(&z->mpz, &mpzop->mpz); |
| 1186 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1187 | Py_DECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1188 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1189 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1190 | } /* MPZ_sqrt() */ |
| 1191 | |
| 1192 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1193 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1194 | MPZ_sqrtrem(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1195 | PyObject *self; |
| 1196 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1197 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1198 | PyObject *op, *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1199 | mpzobject *mpzop = NULL; |
| 1200 | mpzobject *root = NULL, *rem = NULL; |
| 1201 | |
| 1202 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1203 | if (!PyArg_Parse(args, "O", &op)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1204 | return NULL; |
| 1205 | |
| 1206 | if ((mpzop = mpz_mpzcoerce(op)) == NULL |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1207 | || (z = PyTuple_New(2)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1208 | || (root = newmpzobject()) == NULL |
| 1209 | || (rem = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1210 | Py_XDECREF(mpzop); |
| 1211 | Py_XDECREF(z); |
| 1212 | Py_XDECREF(root); |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1213 | /*Py_XDECREF(rem);*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1214 | return NULL; |
| 1215 | } |
| 1216 | |
| 1217 | mpz_sqrtrem(&root->mpz, &rem->mpz, &mpzop->mpz); |
| 1218 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1219 | Py_DECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1220 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1221 | (void)PyTuple_SetItem(z, 0, (PyObject *)root); |
| 1222 | (void)PyTuple_SetItem(z, 1, (PyObject *)rem); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1223 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1224 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1225 | } /* MPZ_sqrtrem() */ |
| 1226 | |
| 1227 | |
Guido van Rossum | 67a5fdb | 1993-12-17 12:09:14 +0000 | [diff] [blame] | 1228 | static void |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1229 | #if __STDC__ |
| 1230 | mpz_divm(MP_INT *res, const MP_INT *num, const MP_INT *den, const MP_INT *mod) |
| 1231 | #else |
| 1232 | mpz_divm(res, num, den, mod) |
| 1233 | MP_INT *res; |
| 1234 | const MP_INT *num; |
| 1235 | const MP_INT *den; |
| 1236 | const MP_INT *mod; |
| 1237 | #endif |
| 1238 | { |
| 1239 | MP_INT s0, s1, q, r, x, d0, d1; |
| 1240 | |
| 1241 | mpz_init_set(&s0, num); |
| 1242 | mpz_init_set_ui(&s1, 0); |
| 1243 | mpz_init(&q); |
| 1244 | mpz_init(&r); |
| 1245 | mpz_init(&x); |
| 1246 | mpz_init_set(&d0, den); |
| 1247 | mpz_init_set(&d1, mod); |
| 1248 | |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1249 | #ifdef GMP2 |
| 1250 | while (d1._mp_size != 0) { |
| 1251 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1252 | while (d1.size != 0) { |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1253 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1254 | mpz_divmod(&q, &r, &d0, &d1); |
| 1255 | mpz_set(&d0, &d1); |
| 1256 | mpz_set(&d1, &r); |
| 1257 | |
| 1258 | mpz_mul(&x, &s1, &q); |
| 1259 | mpz_sub(&x, &s0, &x); |
| 1260 | mpz_set(&s0, &s1); |
| 1261 | mpz_set(&s1, &x); |
| 1262 | } |
| 1263 | |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1264 | #ifdef GMP2 |
| 1265 | if (d0._mp_size != 1 || d0._mp_d[0] != 1) |
| 1266 | res->_mp_size = 0; /* trouble: the gcd != 1; set s to zero */ |
| 1267 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1268 | if (d0.size != 1 || d0.d[0] != 1) |
| 1269 | res->size = 0; /* trouble: the gcd != 1; set s to zero */ |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1270 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1271 | else { |
| 1272 | #ifdef MPZ_MDIV_BUG |
| 1273 | /* watch out here! first check the signs, and then perform |
| 1274 | the mpz_mod() since mod could point to res */ |
| 1275 | if ((s0.size < 0) != (mod->size < 0)) { |
| 1276 | mpz_mod(res, &s0, mod); |
| 1277 | |
| 1278 | if (res->size) |
| 1279 | mpz_add(res, res, mod); |
| 1280 | } |
| 1281 | else |
| 1282 | mpz_mod(res, &s0, mod); |
| 1283 | |
| 1284 | #else /* def MPZ_MDIV_BUG */ |
| 1285 | mpz_mmod(res, &s0, mod); |
| 1286 | #endif /* def MPZ_MDIV_BUG else */ |
| 1287 | } |
| 1288 | |
| 1289 | mpz_clear(&s0); |
| 1290 | mpz_clear(&s1); |
| 1291 | mpz_clear(&q); |
| 1292 | mpz_clear(&r); |
| 1293 | mpz_clear(&x); |
| 1294 | mpz_clear(&d0); |
| 1295 | mpz_clear(&d1); |
| 1296 | } /* mpz_divm() */ |
| 1297 | |
| 1298 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1299 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1300 | MPZ_divm(self, args) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1301 | PyObject *self; |
| 1302 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1303 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1304 | PyObject *num, *den, *mod; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1305 | mpzobject *mpznum, *mpzden, *mpzmod = NULL; |
| 1306 | mpzobject *z = NULL; |
| 1307 | |
| 1308 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1309 | if (!PyArg_Parse(args, "(OOO)", &num, &den, &mod)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1310 | return NULL; |
| 1311 | |
| 1312 | if ((mpznum = mpz_mpzcoerce(num)) == NULL |
| 1313 | || (mpzden = mpz_mpzcoerce(den)) == NULL |
| 1314 | || (mpzmod = mpz_mpzcoerce(mod)) == NULL |
| 1315 | || (z = newmpzobject()) == NULL ) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1316 | Py_XDECREF(mpznum); |
| 1317 | Py_XDECREF(mpzden); |
| 1318 | Py_XDECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1319 | return NULL; |
| 1320 | } |
| 1321 | |
| 1322 | mpz_divm(&z->mpz, &mpznum->mpz, &mpzden->mpz, &mpzmod->mpz); |
| 1323 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1324 | Py_DECREF(mpznum); |
| 1325 | Py_DECREF(mpzden); |
| 1326 | Py_DECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1327 | |
| 1328 | if (mpz_cmp_ui(&z->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1329 | Py_DECREF(z); |
| 1330 | PyErr_SetString(PyExc_ValueError, |
| 1331 | "gcd(den, mod) != 1 or num == 0"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1332 | return NULL; |
| 1333 | } |
| 1334 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1335 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1336 | } /* MPZ_divm() */ |
| 1337 | |
| 1338 | |
| 1339 | /* MPZ methods-as-attributes */ |
| 1340 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1341 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1342 | mpz_int(self, args) |
| 1343 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1344 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1345 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1346 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1347 | mpz_int(self) |
| 1348 | mpzobject *self; |
| 1349 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1350 | { |
| 1351 | long sli; |
| 1352 | |
| 1353 | |
| 1354 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1355 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1356 | return NULL; |
| 1357 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1358 | |
| 1359 | if (mpz_size(&self->mpz) > 1 |
| 1360 | || (sli = (long)mpz_get_ui(&self->mpz)) < (long)0 ) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1361 | PyErr_SetString(PyExc_ValueError, |
| 1362 | "mpz.int() arg too long to convert"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1363 | return NULL; |
| 1364 | } |
| 1365 | |
| 1366 | if (mpz_cmp_ui(&self->mpz, (unsigned long)0) < 0) |
| 1367 | sli = -sli; |
| 1368 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1369 | return PyInt_FromLong(sli); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1370 | } /* mpz_int() */ |
| 1371 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1372 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1373 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
| 1374 | mpz_long(self, args) |
| 1375 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1376 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1377 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1378 | mpz_long(self) |
| 1379 | mpzobject *self; |
| 1380 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1381 | { |
| 1382 | int i, isnegative; |
| 1383 | unsigned long int uli; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1384 | PyLongObject *longobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1385 | int ldcount; |
| 1386 | int bitpointer, newbitpointer; |
| 1387 | MP_INT mpzscratch; |
| 1388 | |
| 1389 | |
| 1390 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1391 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1392 | return NULL; |
| 1393 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1394 | |
| 1395 | /* determine length of python-long to be allocated */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1396 | if ((longobjp = _PyLong_New(i = (int) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1397 | ((mpz_size(&self->mpz) * BITS_PER_MP_LIMB |
| 1398 | + SHIFT - 1) / |
| 1399 | SHIFT))) == NULL) |
| 1400 | return NULL; |
| 1401 | |
| 1402 | /* determine sign, and copy self to scratch var */ |
| 1403 | mpz_init_set(&mpzscratch, &self->mpz); |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1404 | if ((isnegative = (mpz_cmp_ui(&self->mpz, (unsigned long int)0) < 0))) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1405 | mpz_neg(&mpzscratch, &mpzscratch); |
| 1406 | |
| 1407 | /* let those bits come, let those bits go, |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1408 | e.g. dismantle mpzscratch, build PyLongObject */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1409 | |
| 1410 | bitpointer = 0; /* the number of valid bits in stock */ |
| 1411 | newbitpointer = 0; |
| 1412 | ldcount = 0; /* the python-long limb counter */ |
| 1413 | uli = (unsigned long int)0; |
| 1414 | while (i--) { |
| 1415 | longobjp->ob_digit[ldcount] = uli & MASK; |
| 1416 | |
| 1417 | /* check if we've had enough bits for this digit */ |
| 1418 | if (bitpointer < SHIFT) { |
| 1419 | uli = mpz_get_ui(&mpzscratch); |
| 1420 | longobjp->ob_digit[ldcount] |= |
| 1421 | (uli << bitpointer) & MASK; |
| 1422 | uli >>= SHIFT-bitpointer; |
| 1423 | bitpointer += BITS_PER_MP_LIMB; |
| 1424 | mpz_div_2exp(&mpzscratch, &mpzscratch, |
| 1425 | BITS_PER_MP_LIMB); |
| 1426 | } |
| 1427 | else |
| 1428 | uli >>= SHIFT; |
| 1429 | bitpointer -= SHIFT; |
| 1430 | ldcount++; |
| 1431 | } |
| 1432 | |
| 1433 | assert(mpz_cmp_ui(&mpzscratch, (unsigned long int)0) == 0); |
| 1434 | mpz_clear(&mpzscratch); |
| 1435 | assert(ldcount <= longobjp->ob_size); |
| 1436 | |
| 1437 | /* long_normalize() is file-static */ |
| 1438 | /* longobjp = long_normalize(longobjp); */ |
| 1439 | while (ldcount > 0 && longobjp->ob_digit[ldcount-1] == 0) |
| 1440 | ldcount--; |
| 1441 | longobjp->ob_size = ldcount; |
| 1442 | |
| 1443 | |
| 1444 | if (isnegative) |
| 1445 | longobjp->ob_size = -longobjp->ob_size; |
| 1446 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1447 | return (PyObject *)longobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1448 | |
| 1449 | } /* mpz_long() */ |
| 1450 | |
| 1451 | |
| 1452 | /* I would have avoided pow() anyways, so ... */ |
| 1453 | static const double multiplier = 256.0 * 256.0 * 256.0 * 256.0; |
| 1454 | |
| 1455 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1456 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1457 | mpz_float(self, args) |
| 1458 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1459 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1460 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1461 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1462 | mpz_float(self) |
| 1463 | mpzobject *self; |
| 1464 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1465 | { |
| 1466 | int i, isnegative; |
| 1467 | double x; |
| 1468 | double mulstate; |
| 1469 | MP_INT mpzscratch; |
| 1470 | |
| 1471 | |
| 1472 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1473 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1474 | return NULL; |
| 1475 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1476 | |
| 1477 | i = (int)mpz_size(&self->mpz); |
| 1478 | |
| 1479 | /* determine sign, and copy abs(self) to scratch var */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1480 | if ((isnegative = (mpz_cmp_ui(&self->mpz, (unsigned long int)0) < 0))) |
| 1481 | { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1482 | mpz_init(&mpzscratch); |
| 1483 | mpz_neg(&mpzscratch, &self->mpz); |
| 1484 | } |
| 1485 | else |
| 1486 | mpz_init_set(&mpzscratch, &self->mpz); |
| 1487 | |
| 1488 | /* let those bits come, let those bits go, |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1489 | e.g. dismantle mpzscratch, build PyFloatObject */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1490 | |
| 1491 | x = 0.0; |
| 1492 | mulstate = 1.0; |
| 1493 | while (i--) { |
| 1494 | x += mulstate * mpz_get_ui(&mpzscratch); |
| 1495 | mulstate *= multiplier; |
| 1496 | mpz_div_2exp(&mpzscratch, &mpzscratch, BITS_PER_MP_LIMB); |
| 1497 | } |
| 1498 | |
| 1499 | assert(mpz_cmp_ui(&mpzscratch, (unsigned long int)0) == 0); |
| 1500 | mpz_clear(&mpzscratch); |
| 1501 | |
| 1502 | if (isnegative) |
| 1503 | x = -x; |
| 1504 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1505 | return PyFloat_FromDouble(x); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1506 | |
| 1507 | } /* mpz_float() */ |
| 1508 | |
| 1509 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1510 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1511 | mpz_hex(self, args) |
| 1512 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1513 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1514 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1515 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1516 | mpz_hex(self) |
| 1517 | mpzobject *self; |
| 1518 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1519 | { |
| 1520 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1521 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1522 | return NULL; |
| 1523 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1524 | |
| 1525 | return mpz_format(self, 16, (unsigned char)1); |
| 1526 | } /* mpz_hex() */ |
| 1527 | |
| 1528 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1529 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1530 | mpz_oct(self, args) |
| 1531 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1532 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1533 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1534 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1535 | mpz_oct(self) |
| 1536 | mpzobject *self; |
| 1537 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1538 | { |
| 1539 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1540 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1541 | return NULL; |
| 1542 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1543 | |
| 1544 | return mpz_format(self, 8, (unsigned char)1); |
| 1545 | } /* mpz_oct() */ |
| 1546 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1547 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1548 | mpz_binary(self, args) |
| 1549 | mpzobject *self; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1550 | PyObject *args; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1551 | { |
| 1552 | int size; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1553 | PyStringObject *strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1554 | char *cp; |
| 1555 | MP_INT mp; |
| 1556 | unsigned long ldigit; |
| 1557 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1558 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1559 | return NULL; |
| 1560 | |
| 1561 | if (mpz_cmp_ui(&self->mpz, (unsigned long int)0) < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1562 | PyErr_SetString(PyExc_ValueError, |
| 1563 | "mpz.binary() arg must be >= 0"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1564 | return NULL; |
| 1565 | } |
| 1566 | |
| 1567 | mpz_init_set(&mp, &self->mpz); |
| 1568 | size = (int)mpz_size(&mp); |
| 1569 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1570 | if ((strobjp = (PyStringObject *) |
| 1571 | PyString_FromStringAndSize( |
| 1572 | (char *)0, size * sizeof (unsigned long int))) == NULL) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1573 | return NULL; |
| 1574 | |
| 1575 | /* get the beginning of the string memory and start copying things */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1576 | cp = PyString_AS_STRING(strobjp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1577 | |
| 1578 | /* this has been programmed using a (fairly) decent lib-i/f it could |
| 1579 | be must faster if we looked into the GMP lib */ |
| 1580 | while (size--) { |
| 1581 | ldigit = mpz_get_ui(&mp); |
| 1582 | mpz_div_2exp(&mp, &mp, BITS_PER_MP_LIMB); |
| 1583 | *cp++ = (unsigned char)(ldigit & 0xFF); |
| 1584 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1585 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1586 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1587 | } |
| 1588 | |
| 1589 | while (strobjp->ob_size && !*--cp) |
| 1590 | strobjp->ob_size--; |
| 1591 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1592 | return (PyObject *)strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1593 | } /* mpz_binary() */ |
| 1594 | |
| 1595 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1596 | static PyMethodDef mpz_methods[] = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1597 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
| 1598 | {"int", mpz_int}, |
| 1599 | {"long", mpz_long}, |
| 1600 | {"float", mpz_float}, |
| 1601 | {"hex", mpz_hex}, |
| 1602 | {"oct", mpz_oct}, |
| 1603 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1604 | {"binary", (PyCFunction)mpz_binary}, |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1605 | {NULL, NULL} /* sentinel */ |
| 1606 | }; |
| 1607 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1608 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1609 | mpz_getattr(self, name) |
| 1610 | mpzobject *self; |
| 1611 | char *name; |
| 1612 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1613 | return Py_FindMethod(mpz_methods, (PyObject *)self, name); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1614 | } /* mpz_getattr() */ |
| 1615 | |
| 1616 | |
| 1617 | static int |
| 1618 | mpz_coerce(pv, pw) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1619 | PyObject **pv; |
| 1620 | PyObject **pw; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1621 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1622 | PyObject *z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1623 | |
| 1624 | #ifdef MPZ_DEBUG |
| 1625 | fputs("mpz_coerce() called...\n", stderr); |
| 1626 | #endif /* def MPZ_DEBUG */ |
| 1627 | |
| 1628 | assert(is_mpzobject(*pv)); |
| 1629 | |
| 1630 | /* always convert other arg to mpz value, except for floats */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1631 | if (!PyFloat_Check(*pw)) { |
| 1632 | if ((z = (PyObject *)mpz_mpzcoerce(*pw)) == NULL) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1633 | return -1; /* -1: an error always has been set */ |
| 1634 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1635 | Py_INCREF(*pv); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1636 | *pw = z; |
| 1637 | } |
| 1638 | else { |
| 1639 | if ((z = mpz_float(*pv, NULL)) == NULL) |
| 1640 | return -1; |
| 1641 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1642 | Py_INCREF(*pw); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1643 | *pv = z; |
| 1644 | } |
| 1645 | return 0; /* coercion succeeded */ |
| 1646 | |
| 1647 | } /* mpz_coerce() */ |
| 1648 | |
| 1649 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1650 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1651 | mpz_repr(v) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1652 | PyObject *v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1653 | { |
| 1654 | return mpz_format(v, 10, (unsigned char)1); |
| 1655 | } /* mpz_repr() */ |
| 1656 | |
| 1657 | |
| 1658 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1659 | #define UF (unaryfunc) |
| 1660 | #define BF (binaryfunc) |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 1661 | #define TF (ternaryfunc) |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1662 | #define IF (inquiry) |
| 1663 | #define CF (coercion) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1664 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1665 | static PyNumberMethods mpz_as_number = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1666 | BF mpz_addition, /*nb_add*/ |
| 1667 | BF mpz_substract, /*nb_subtract*/ |
| 1668 | BF mpz_multiply, /*nb_multiply*/ |
| 1669 | BF mpz_divide, /*nb_divide*/ |
| 1670 | BF mpz_remainder, /*nb_remainder*/ |
| 1671 | BF mpz_div_and_mod, /*nb_divmod*/ |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 1672 | TF mpz_power, /*nb_power*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1673 | UF mpz_negative, /*nb_negative*/ |
| 1674 | UF mpz_positive, /*tp_positive*/ |
| 1675 | UF mpz_absolute, /*tp_absolute*/ |
| 1676 | IF mpz_nonzero, /*tp_nonzero*/ |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1677 | UF py_mpz_invert, /*nb_invert*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1678 | BF mpz_lshift, /*nb_lshift*/ |
| 1679 | BF mpz_rshift, /*nb_rshift*/ |
| 1680 | BF mpz_andfunc, /*nb_and*/ |
| 1681 | BF mpz_xorfunc, /*nb_xor*/ |
| 1682 | BF mpz_orfunc, /*nb_or*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1683 | CF mpz_coerce, /*nb_coerce*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1684 | #ifndef MPZ_CONVERSIONS_AS_METHODS |
| 1685 | UF mpz_int, /*nb_int*/ |
| 1686 | UF mpz_long, /*nb_long*/ |
| 1687 | UF mpz_float, /*nb_float*/ |
| 1688 | UF mpz_oct, /*nb_oct*/ |
| 1689 | UF mpz_hex, /*nb_hex*/ |
| 1690 | #endif /* ndef MPZ_CONVERSIONS_AS_METHODS */ |
| 1691 | }; |
| 1692 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1693 | static PyTypeObject MPZtype = { |
| 1694 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1695 | 0, /*ob_size*/ |
| 1696 | "mpz", /*tp_name*/ |
| 1697 | sizeof(mpzobject), /*tp_size*/ |
| 1698 | 0, /*tp_itemsize*/ |
| 1699 | /* methods */ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1700 | (destructor)mpz_dealloc, /*tp_dealloc*/ |
| 1701 | 0, /*tp_print*/ |
| 1702 | (getattrfunc)mpz_getattr, /*tp_getattr*/ |
| 1703 | 0, /*tp_setattr*/ |
| 1704 | (cmpfunc)mpz_compare, /*tp_compare*/ |
| 1705 | (reprfunc)mpz_repr, /*tp_repr*/ |
| 1706 | &mpz_as_number, /*tp_as_number*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1707 | }; |
| 1708 | |
| 1709 | /* List of functions exported by this module */ |
| 1710 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1711 | static PyMethodDef mpz_functions[] = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1712 | #if 0 |
| 1713 | {initialiser_name, MPZ_mpz}, |
| 1714 | #else /* 0 */ |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1715 | /* until guido ``fixes'' struct PyMethodDef */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1716 | {(char *)initialiser_name, MPZ_mpz}, |
| 1717 | #endif /* 0 else */ |
| 1718 | {"powm", MPZ_powm}, |
| 1719 | {"gcd", MPZ_gcd}, |
| 1720 | {"gcdext", MPZ_gcdext}, |
| 1721 | {"sqrt", MPZ_sqrt}, |
| 1722 | {"sqrtrem", MPZ_sqrtrem}, |
| 1723 | {"divm", MPZ_divm}, |
| 1724 | {NULL, NULL} /* Sentinel */ |
| 1725 | }; |
| 1726 | |
| 1727 | |
| 1728 | /* #define MP_TEST_ALLOC */ |
| 1729 | |
| 1730 | #ifdef MP_TEST_ALLOC |
| 1731 | #define MP_TEST_SIZE 4 |
| 1732 | static const char mp_test_magic[MP_TEST_SIZE] = {'\xAA','\xAA','\xAA','\xAA'}; |
| 1733 | static mp_test_error( location ) |
| 1734 | int *location; |
| 1735 | { |
| 1736 | /* assumptions: *alloc returns address dividable by 4, |
| 1737 | mpz_* routines allocate in chunks dividable by four */ |
| 1738 | fprintf(stderr, "MP_TEST_ERROR: location holds 0x%08d\n", *location ); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1739 | Py_FatalError("MP_TEST_ERROR"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1740 | } /* static mp_test_error() */ |
| 1741 | #define MP_EXTRA_ALLOC(size) ((size) + MP_TEST_SIZE) |
| 1742 | #define MP_SET_TEST(basep,size) (void)memcpy( ((char *)(basep))+(size), mp_test_magic, MP_TEST_SIZE) |
| 1743 | #define MP_DO_TEST(basep,size) if ( !memcmp( ((char *)(basep))+(size), mp_test_magic, MP_TEST_SIZE ) ) \ |
| 1744 | ; \ |
| 1745 | else \ |
| 1746 | mp_test_error((int *)((char *)(basep) + size)) |
| 1747 | #else /* def MP_TEST_ALLOC */ |
| 1748 | #define MP_EXTRA_ALLOC(size) (size) |
| 1749 | #define MP_SET_TEST(basep,size) |
| 1750 | #define MP_DO_TEST(basep,size) |
| 1751 | #endif /* def MP_TEST_ALLOC else */ |
| 1752 | |
| 1753 | void *mp_allocate( alloc_size ) |
| 1754 | size_t alloc_size; |
| 1755 | { |
| 1756 | void *res; |
| 1757 | |
| 1758 | #ifdef MPZ_DEBUG |
| 1759 | fprintf(stderr, "mp_allocate : size %ld\n", |
| 1760 | alloc_size); |
| 1761 | #endif /* def MPZ_DEBUG */ |
| 1762 | |
| 1763 | if ( (res = malloc(MP_EXTRA_ALLOC(alloc_size))) == NULL ) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1764 | Py_FatalError("mp_allocate failure"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1765 | |
| 1766 | #ifdef MPZ_DEBUG |
| 1767 | fprintf(stderr, "mp_allocate : address 0x%08x\n", res); |
| 1768 | #endif /* def MPZ_DEBUG */ |
| 1769 | |
| 1770 | MP_SET_TEST(res,alloc_size); |
| 1771 | |
| 1772 | return res; |
| 1773 | } /* mp_allocate() */ |
| 1774 | |
| 1775 | |
| 1776 | void *mp_reallocate( ptr, old_size, new_size ) |
| 1777 | void *ptr; |
| 1778 | size_t old_size; |
| 1779 | size_t new_size; |
| 1780 | { |
| 1781 | void *res; |
| 1782 | |
| 1783 | #ifdef MPZ_DEBUG |
| 1784 | fprintf(stderr, "mp_reallocate: old address 0x%08x, old size %ld\n", |
| 1785 | ptr, old_size); |
| 1786 | #endif /* def MPZ_DEBUG */ |
| 1787 | |
| 1788 | MP_DO_TEST(ptr, old_size); |
| 1789 | |
| 1790 | if ( (res = realloc(ptr, MP_EXTRA_ALLOC(new_size))) == NULL ) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1791 | Py_FatalError("mp_reallocate failure"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1792 | |
| 1793 | #ifdef MPZ_DEBUG |
| 1794 | fprintf(stderr, "mp_reallocate: new address 0x%08x, new size %ld\n", |
| 1795 | res, new_size); |
| 1796 | #endif /* def MPZ_DEBUG */ |
| 1797 | |
| 1798 | MP_SET_TEST(res, new_size); |
| 1799 | |
| 1800 | return res; |
| 1801 | } /* mp_reallocate() */ |
| 1802 | |
| 1803 | |
| 1804 | void mp_free( ptr, size ) |
| 1805 | void *ptr; |
| 1806 | size_t size; |
| 1807 | { |
| 1808 | |
| 1809 | #ifdef MPZ_DEBUG |
| 1810 | fprintf(stderr, "mp_free : old address 0x%08x, old size %ld\n", |
| 1811 | ptr, size); |
| 1812 | #endif /* def MPZ_DEBUG */ |
| 1813 | |
| 1814 | MP_DO_TEST(ptr, size); |
| 1815 | free(ptr); |
| 1816 | } /* mp_free() */ |
| 1817 | |
| 1818 | |
| 1819 | |
| 1820 | /* Initialize this module. */ |
| 1821 | |
| 1822 | void |
| 1823 | initmpz() |
| 1824 | { |
| 1825 | #ifdef MPZ_DEBUG |
| 1826 | fputs( "initmpz() called...\n", stderr ); |
| 1827 | #endif /* def MPZ_DEBUG */ |
| 1828 | |
| 1829 | mp_set_memory_functions( mp_allocate, mp_reallocate, mp_free ); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1830 | (void)Py_InitModule("mpz", mpz_functions); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1831 | |
| 1832 | /* create some frequently used constants */ |
| 1833 | if ((mpz_value_zero = newmpzobject()) == NULL) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1834 | Py_FatalError("initmpz: can't initialize mpz constants"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1835 | mpz_set_ui(&mpz_value_zero->mpz, (unsigned long int)0); |
| 1836 | |
| 1837 | if ((mpz_value_one = newmpzobject()) == NULL) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1838 | Py_FatalError("initmpz: can't initialize mpz constants"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1839 | mpz_set_ui(&mpz_value_one->mpz, (unsigned long int)1); |
| 1840 | |
| 1841 | if ((mpz_value_mone = newmpzobject()) == NULL) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1842 | Py_FatalError("initmpz: can't initialize mpz constants"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1843 | mpz_set_si(&mpz_value_mone->mpz, (long)-1); |
| 1844 | |
| 1845 | } /* initmpz() */ |
| 1846 | #ifdef MAKEDUMMYINT |
| 1847 | int _mpz_dummy_int; /* XXX otherwise, we're .bss-less (DYNLOAD->Jack?) */ |
| 1848 | #endif /* def MAKEDUMMYINT */ |