Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 2 | /* MPZ module */ |
| 3 | |
| 4 | /* This module provides an interface to an alternate Multi-Precision |
| 5 | library, GNU MP in this case */ |
| 6 | |
| 7 | /* XXX note: everywhere where mpz_size is called, |
| 8 | sizeof (limb) == sizeof (long) has been assumed. */ |
| 9 | |
| 10 | |
| 11 | /* MPZ objects */ |
| 12 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 13 | #include "Python.h" |
Guido van Rossum | a597dde | 1995-01-10 20:56:29 +0000 | [diff] [blame] | 14 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 15 | #include <assert.h> |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 16 | #include <sys/types.h> /* For size_t */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 17 | |
| 18 | /* |
| 19 | ** These are the cpp-flags used in this file... |
| 20 | ** |
| 21 | ** |
| 22 | ** MPZ_MDIV_BUG works around the mpz_m{div,mod,...} routines. |
| 23 | ** This bug has been fixed in a later release of |
| 24 | ** GMP. |
| 25 | ** |
| 26 | ** MPZ_GET_STR_BUG mpz_get_str corrupts memory, seems to be fixed |
| 27 | ** in a later release |
| 28 | ** |
| 29 | ** MPZ_DEBUG generates a bunch of diagnostic messages |
| 30 | ** |
| 31 | ** MPZ_SPARE_MALLOC if set, results in extra code that tries to |
| 32 | ** minimize the creation of extra objects. |
| 33 | ** |
| 34 | ** MPZ_TEST_DIV extra diagnostic output on stderr, when division |
| 35 | ** routines are involved |
| 36 | ** |
| 37 | ** MPZ_LIB_DOES_CHECKING if set, assumes that mpz library doesn't call |
| 38 | ** alloca with arg < 0 (when casted to a signed |
| 39 | ** integral type). |
| 40 | ** |
| 41 | ** MPZ_CONVERSIONS_AS_METHODS if set, presents the conversions as |
| 42 | ** methods. e.g., `mpz(5).long() == 5L' |
| 43 | ** Later, Guido provided an interface to the |
| 44 | ** standard functions. So this flag has no been |
| 45 | ** cleared, and `long(mpz(5)) == 5L' |
| 46 | ** |
| 47 | ** MP_TEST_ALLOC If set, you would discover why MPZ_GET_STR_BUG |
| 48 | ** is needed |
| 49 | ** |
| 50 | ** MAKEDUMMYINT Must be set if dynamic linking will be used |
| 51 | */ |
| 52 | |
| 53 | |
| 54 | /* |
| 55 | ** 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] | 56 | ** This has been fixed with gmp release 2.0 |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 57 | */ |
| 58 | /*#define MPZ_MDIV_BUG fixed the (for me) nexessary parts in libgmp.a */ |
| 59 | /* |
| 60 | ** IMO, mpz_get_str() assumes a bit too large target space, if he doesn't |
| 61 | ** allocate it himself |
| 62 | */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 63 | |
| 64 | #include "gmp.h" |
Guido van Rossum | e7ef74d | 2000-02-24 15:26:30 +0000 | [diff] [blame] | 65 | |
Guido van Rossum | 57e846f | 1997-08-17 19:08:33 +0000 | [diff] [blame] | 66 | #if __GNU_MP__ + 0 == 2 |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 67 | #define GMP2 |
Andrew M. Kuchling | b6f6e95 | 2000-02-25 22:23:31 +0000 | [diff] [blame] | 68 | #define BITS_PER_MP_LIMB mp_bits_per_limb |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 69 | #else |
| 70 | #define MPZ_GET_STR_BUG |
Andrew M. Kuchling | b6f6e95 | 2000-02-25 22:23:31 +0000 | [diff] [blame] | 71 | #include "gmp-mparam.h" |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 72 | #endif |
| 73 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 74 | typedef struct { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 75 | PyObject_HEAD |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 76 | MP_INT mpz; /* the actual number */ |
| 77 | } mpzobject; |
| 78 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 79 | staticforward PyTypeObject MPZtype; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 80 | |
| 81 | #define is_mpzobject(v) ((v)->ob_type == &MPZtype) |
| 82 | |
| 83 | static const char initialiser_name[] = "mpz"; |
| 84 | |
| 85 | /* #define MPZ_DEBUG */ |
| 86 | |
| 87 | static mpzobject * |
Thomas Wouters | f3f33dc | 2000-07-21 06:00:07 +0000 | [diff] [blame] | 88 | newmpzobject(void) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 89 | { |
| 90 | mpzobject *mpzp; |
| 91 | |
| 92 | |
| 93 | #ifdef MPZ_DEBUG |
| 94 | fputs( "mpz_object() called...\n", stderr ); |
| 95 | #endif /* def MPZ_DEBUG */ |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 96 | mpzp = PyObject_New(mpzobject, &MPZtype); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 97 | if (mpzp == NULL) |
| 98 | return NULL; |
| 99 | |
| 100 | mpz_init(&mpzp->mpz); /* actual initialisation */ |
| 101 | return mpzp; |
| 102 | } /* newmpzobject() */ |
| 103 | |
| 104 | #ifdef MPZ_GET_STR_BUG |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 105 | #include "longlong.h" |
| 106 | #endif /* def MPZ_GET_STR_BUG */ |
| 107 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 108 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 109 | mpz_format(PyObject *objp, int base, unsigned char withname) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 110 | { |
| 111 | mpzobject *mpzp = (mpzobject *)objp; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 112 | PyStringObject *strobjp; |
Guido van Rossum | 2650a42 | 2000-06-28 21:29:47 +0000 | [diff] [blame] | 113 | size_t i; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 114 | int cmpres; |
| 115 | int taglong; |
| 116 | char *cp; |
| 117 | char prefix[5], *tcp; |
| 118 | |
| 119 | |
| 120 | tcp = &prefix[0]; |
| 121 | |
| 122 | if (mpzp == NULL || !is_mpzobject(mpzp)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 123 | PyErr_BadInternalCall(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 124 | return NULL; |
| 125 | } |
| 126 | |
| 127 | assert(base >= 2 && base <= 36); |
| 128 | |
| 129 | if (withname) |
| 130 | i = strlen(initialiser_name) + 2; /* e.g. 'mpz(' + ')' */ |
| 131 | else |
| 132 | i = 0; |
| 133 | |
| 134 | if ((cmpres = mpz_cmp_si(&mpzp->mpz, 0L)) == 0) |
| 135 | base = 10; /* '0' in every base, right */ |
| 136 | else if (cmpres < 0) { |
| 137 | *tcp++ = '-'; |
| 138 | i += 1; /* space to hold '-' */ |
| 139 | } |
| 140 | |
| 141 | #ifdef MPZ_DEBUG |
| 142 | fprintf(stderr, "mpz_format: mpz_sizeinbase %d\n", |
| 143 | (int)mpz_sizeinbase(&mpzp->mpz, base)); |
| 144 | #endif /* def MPZ_DEBUG */ |
| 145 | #ifdef MPZ_GET_STR_BUG |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 146 | #ifdef GMP2 |
| 147 | i += ((size_t) abs(mpzp->mpz._mp_size) * BITS_PER_MP_LIMB |
| 148 | * __mp_bases[base].chars_per_bit_exactly) + 1; |
| 149 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 150 | i += ((size_t) abs(mpzp->mpz.size) * BITS_PER_MP_LIMB |
| 151 | * __mp_bases[base].chars_per_bit_exactly) + 1; |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 152 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 153 | #else /* def MPZ_GET_STR_BUG */ |
| 154 | i += (int)mpz_sizeinbase(&mpzp->mpz, base); |
| 155 | #endif /* def MPZ_GET_STR_BUG else */ |
| 156 | |
| 157 | if (base == 16) { |
| 158 | *tcp++ = '0'; |
| 159 | *tcp++ = 'x'; |
| 160 | i += 2; /* space to hold '0x' */ |
| 161 | } |
| 162 | else if (base == 8) { |
| 163 | *tcp++ = '0'; |
| 164 | i += 1; /* space to hold the extra '0' */ |
| 165 | } |
| 166 | else if (base > 10) { |
| 167 | *tcp++ = '0' + base / 10; |
| 168 | *tcp++ = '0' + base % 10; |
| 169 | *tcp++ = '#'; |
| 170 | i += 3; /* space to hold e.g. '12#' */ |
| 171 | } |
| 172 | else if (base < 10) { |
| 173 | *tcp++ = '0' + base; |
| 174 | *tcp++ = '#'; |
| 175 | i += 2; /* space to hold e.g. '6#' */ |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | ** the following code looks if we need a 'L' attached to the number |
| 180 | ** it will also attach an 'L' to the value -0x80000000 |
| 181 | */ |
| 182 | taglong = 0; |
| 183 | if (mpz_size(&mpzp->mpz) > 1 |
| 184 | || (long)mpz_get_ui(&mpzp->mpz) < 0L) { |
| 185 | taglong = 1; |
| 186 | i += 1; /* space to hold 'L' */ |
| 187 | } |
| 188 | |
| 189 | #ifdef MPZ_DEBUG |
| 190 | fprintf(stderr, "mpz_format: requesting string size %d\n", i); |
| 191 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 192 | if ((strobjp = |
| 193 | (PyStringObject *)PyString_FromStringAndSize((char *)0, i)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 194 | == NULL) |
| 195 | return NULL; |
| 196 | |
| 197 | /* get the beginning of the string memory and start copying things */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 198 | cp = PyString_AS_STRING(strobjp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 199 | if (withname) { |
| 200 | strcpy(cp, initialiser_name); |
| 201 | cp += strlen(initialiser_name); |
| 202 | *cp++ = '('; /*')'*/ |
| 203 | } |
| 204 | |
| 205 | /* copy the already prepared prefix; e.g. sign and base indicator */ |
| 206 | *tcp = '\0'; |
| 207 | strcpy(cp, prefix); |
| 208 | cp += tcp - prefix; |
| 209 | |
| 210 | /* 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] | 211 | number */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 212 | if (cmpres < 0) |
| 213 | mpz_neg(&mpzp->mpz,&mpzp->mpz); /* hack Hack HAck HACk HACK */ |
| 214 | (void)mpz_get_str(cp, base, &mpzp->mpz); |
| 215 | if (cmpres < 0) |
| 216 | mpz_neg(&mpzp->mpz,&mpzp->mpz); /* hack Hack HAck HACk HACK */ |
| 217 | #ifdef MPZ_DEBUG |
| 218 | fprintf(stderr, "mpz_format: base (ultim) %d, mpz_get_str: %s\n", |
| 219 | base, cp); |
| 220 | #endif /* def MPZ_DEBUG */ |
| 221 | cp += strlen(cp); |
| 222 | |
| 223 | if (taglong) |
| 224 | *cp++ = 'L'; |
| 225 | if (withname) |
| 226 | *cp++ = /*'('*/ ')'; |
| 227 | |
| 228 | *cp = '\0'; |
| 229 | |
| 230 | #ifdef MPZ_DEBUG |
| 231 | fprintf(stderr, |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 232 | "mpz_format: cp (str end) %p, begin %p, diff %d, i %d\n", |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 233 | cp, PyString_AS_STRING(strobjp), |
| 234 | cp - PyString_AS_STRING(strobjp), i); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 235 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 236 | assert(cp - PyString_AS_STRING(strobjp) <= i); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 237 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 238 | if (cp - PyString_AS_STRING(strobjp) != i) { |
| 239 | strobjp->ob_size -= i - (cp - PyString_AS_STRING(strobjp)); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 240 | } |
| 241 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 242 | return (PyObject *)strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 243 | } /* mpz_format() */ |
| 244 | |
| 245 | /* MPZ methods */ |
| 246 | |
| 247 | static void |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 248 | mpz_dealloc(mpzobject *mpzp) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 249 | { |
| 250 | #ifdef MPZ_DEBUG |
| 251 | fputs( "mpz_dealloc() called...\n", stderr ); |
| 252 | #endif /* def MPZ_DEBUG */ |
| 253 | mpz_clear(&mpzp->mpz); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 254 | PyObject_Del(mpzp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 255 | } /* mpz_dealloc() */ |
| 256 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 257 | |
| 258 | /* pointers to frequently used values 0, 1 and -1 */ |
| 259 | static mpzobject *mpz_value_zero, *mpz_value_one, *mpz_value_mone; |
| 260 | |
| 261 | static int |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 262 | mpz_compare(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 263 | { |
| 264 | int cmpres; |
| 265 | |
| 266 | |
| 267 | /* guido sez it's better to return -1, 0 or 1 */ |
| 268 | return (cmpres = mpz_cmp( &a->mpz, &b->mpz )) == 0 ? 0 |
| 269 | : cmpres > 0 ? 1 : -1; |
| 270 | } /* mpz_compare() */ |
| 271 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 272 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 273 | mpz_addition(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 274 | { |
| 275 | mpzobject *z; |
| 276 | |
| 277 | |
| 278 | #ifdef MPZ_SPARE_MALLOC |
| 279 | if (mpz_cmp_ui(&a->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 280 | Py_INCREF(b); |
| 281 | return (PyObject *)b; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 285 | Py_INCREF(a); |
| 286 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 287 | } |
| 288 | #endif /* def MPZ_SPARE_MALLOC */ |
| 289 | |
| 290 | if ((z = newmpzobject()) == NULL) |
| 291 | return NULL; |
| 292 | |
| 293 | mpz_add(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 294 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 295 | } /* mpz_addition() */ |
| 296 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 297 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 298 | mpz_substract(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 299 | { |
| 300 | mpzobject *z; |
| 301 | |
| 302 | |
| 303 | #ifdef MPZ_SPARE_MALLOC |
| 304 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 305 | Py_INCREF(a); |
| 306 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 307 | } |
| 308 | #endif /* MPZ_SPARE_MALLOC */ |
| 309 | |
| 310 | if ((z = newmpzobject()) == NULL) |
| 311 | return NULL; |
| 312 | |
| 313 | mpz_sub(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 314 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 315 | } /* mpz_substract() */ |
| 316 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 317 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 318 | mpz_multiply(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 319 | { |
| 320 | #ifdef MPZ_SPARE_MALLOC |
| 321 | int cmpres; |
| 322 | #endif /* def MPZ_SPARE_MALLOC */ |
| 323 | mpzobject *z; |
| 324 | |
| 325 | |
| 326 | #ifdef MPZ_SPARE_MALLOC |
| 327 | if ((cmpres = mpz_cmp_ui(&a->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 328 | Py_INCREF(mpz_value_zero); |
| 329 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 330 | } |
| 331 | 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] | 332 | Py_INCREF(b); |
| 333 | return (PyObject *)b; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long_int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 337 | Py_INCREF(mpz_value_zero); |
| 338 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 339 | } |
| 340 | 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] | 341 | Py_INCREF(a); |
| 342 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 343 | } |
| 344 | #endif /* MPZ_SPARE_MALLOC */ |
| 345 | |
| 346 | if ((z = newmpzobject()) == NULL) |
| 347 | return NULL; |
| 348 | |
| 349 | mpz_mul( &z->mpz, &a->mpz, &b->mpz ); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 350 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 351 | |
| 352 | } /* mpz_multiply() */ |
| 353 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 354 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 355 | mpz_divide(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 356 | { |
| 357 | #ifdef MPZ_SPARE_MALLOC |
| 358 | int cmpres; |
| 359 | #endif /* def MPZ_SPARE_MALLOC */ |
| 360 | mpzobject *z; |
| 361 | |
| 362 | |
| 363 | if (( |
| 364 | #ifdef MPZ_SPARE_MALLOC |
| 365 | cmpres = |
| 366 | #endif /* def MPZ_SPARE_MALLOC */ |
| 367 | mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 368 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz./ by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 369 | return NULL; |
| 370 | } |
| 371 | #ifdef MPZ_SPARE_MALLOC |
| 372 | 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] | 373 | Py_INCREF(a); |
| 374 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 375 | } |
| 376 | #endif /* def MPZ_SPARE_MALLOC */ |
| 377 | |
| 378 | if ((z = newmpzobject()) == NULL) |
| 379 | return NULL; |
| 380 | |
| 381 | #ifdef MPZ_TEST_DIV |
| 382 | fputs("mpz_divide: div result", stderr); |
| 383 | mpz_div(&z->mpz, &a->mpz, &b->mpz); |
| 384 | mpz_out_str(stderr, 10, &z->mpz); |
| 385 | putc('\n', stderr); |
| 386 | #endif /* def MPZ_TEST_DIV */ |
| 387 | #ifdef MPZ_MDIV_BUG |
| 388 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 389 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0)) { |
| 390 | /* |
| 391 | ** numerator has other sign than denominator: we have |
| 392 | ** to look at the remainder for a correction, since mpz_mdiv |
| 393 | ** also calls mpz_divmod, I can as well do it myself |
| 394 | */ |
| 395 | MP_INT tmpmpz; |
| 396 | |
| 397 | |
| 398 | mpz_init(&tmpmpz); |
| 399 | mpz_divmod(&z->mpz, &tmpmpz, &a->mpz, &b->mpz); |
| 400 | |
| 401 | if (mpz_cmp_ui(&tmpmpz, (unsigned long int)0) != 0) |
| 402 | mpz_sub_ui(&z->mpz, &z->mpz, (unsigned long int)1); |
| 403 | |
| 404 | mpz_clear(&tmpmpz); |
| 405 | } |
| 406 | else |
| 407 | mpz_div(&z->mpz, &a->mpz, &b->mpz); |
| 408 | /* the ``naive'' implementation does it right for operands |
| 409 | having the same sign */ |
| 410 | |
| 411 | #else /* def MPZ_MDIV_BUG */ |
| 412 | mpz_mdiv(&z->mpz, &a->mpz, &b->mpz); |
| 413 | #endif /* def MPZ_MDIV_BUG else */ |
| 414 | #ifdef MPZ_TEST_DIV |
| 415 | fputs("mpz_divide: mdiv result", stderr); |
| 416 | mpz_out_str(stderr, 10, &z->mpz); |
| 417 | putc('\n', stderr); |
| 418 | #endif /* def MPZ_TEST_DIV */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 419 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 420 | |
| 421 | } /* mpz_divide() */ |
| 422 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 423 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 424 | mpz_remainder(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 425 | { |
| 426 | #ifdef MPZ_SPARE_MALLOC |
| 427 | int cmpres; |
| 428 | #endif /* def MPZ_SPARE_MALLOC */ |
| 429 | mpzobject *z; |
| 430 | |
| 431 | |
| 432 | if (( |
| 433 | #ifdef MPZ_SPARE_MALLOC |
| 434 | cmpres = |
| 435 | #endif /* def MPZ_SPARE_MALLOC */ |
| 436 | mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 437 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz.% by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 438 | return NULL; |
| 439 | } |
| 440 | #ifdef MPZ_SPARE_MALLOC |
| 441 | if (cmpres > 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 442 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)2)) == 0) |
| 443 | { |
| 444 | Py_INCREF(mpz_value_one); |
| 445 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 446 | } |
| 447 | if (cmpres < 0) { |
| 448 | /* b must be 1 now */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 449 | Py_INCREF(mpz_value_zero); |
| 450 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 451 | } |
| 452 | } |
| 453 | #endif /* def MPZ_SPARE_MALLOC */ |
| 454 | |
| 455 | if ((z = newmpzobject()) == NULL) |
| 456 | return NULL; |
| 457 | |
| 458 | #ifdef MPZ_TEST_DIV |
| 459 | fputs("mpz_remain: mod result", stderr); |
| 460 | mpz_mod(&z->mpz, &a->mpz, &b->mpz); |
| 461 | mpz_out_str(stderr, 10, &z->mpz); |
| 462 | putc('\n', stderr); |
| 463 | #endif /* def MPZ_TEST_DIV */ |
| 464 | #ifdef MPZ_MDIV_BUG |
| 465 | |
| 466 | /* the ``naive'' implementation does it right for operands |
| 467 | having the same sign */ |
| 468 | mpz_mod(&z->mpz, &a->mpz, &b->mpz); |
| 469 | |
| 470 | /* assumption: z, a and b all point to different locations */ |
| 471 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 472 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0) |
| 473 | && mpz_cmp_ui(&z->mpz, (unsigned long int)0) != 0) |
| 474 | mpz_add(&z->mpz, &z->mpz, &b->mpz); |
| 475 | /* |
| 476 | ** numerator has other sign than denominator: we have |
| 477 | ** to look at the remainder for a correction, since mpz_mdiv |
| 478 | ** also calls mpz_divmod, I can as well do it myself |
| 479 | */ |
| 480 | #else /* def MPZ_MDIV_BUG */ |
| 481 | mpz_mmod(&z->mpz, &a->mpz, &b->mpz); |
| 482 | #endif /* def MPZ_MDIV_BUG else */ |
| 483 | #ifdef MPZ_TEST_DIV |
| 484 | fputs("mpz_remain: mmod result", stderr); |
| 485 | mpz_out_str(stderr, 10, &z->mpz); |
| 486 | putc('\n', stderr); |
| 487 | #endif /* def MPZ_TEST_DIV */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 488 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 489 | |
| 490 | } /* mpz_remainder() */ |
| 491 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 492 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 493 | mpz_div_and_mod(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 494 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 495 | PyObject *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 496 | mpzobject *x = NULL, *y = NULL; |
| 497 | |
| 498 | |
| 499 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 500 | PyErr_SetString(PyExc_ZeroDivisionError, "mpz.divmod by zero"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 501 | return NULL; |
| 502 | } |
| 503 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 504 | if ((z = PyTuple_New(2)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 505 | || (x = newmpzobject()) == NULL |
| 506 | || (y = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 507 | Py_XDECREF(z); |
| 508 | Py_XDECREF(x); |
| 509 | Py_XDECREF(y); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 510 | return NULL; |
| 511 | } |
| 512 | |
| 513 | #ifdef MPZ_TEST_DIV |
| 514 | fputs("mpz_divmod: dm result", stderr); |
| 515 | mpz_divmod(&x->mpz, &y->mpz, &a->mpz, &b->mpz); |
| 516 | mpz_out_str(stderr, 10, &x->mpz); |
| 517 | putc('\n', stderr); |
| 518 | mpz_out_str(stderr, 10, &y->mpz); |
| 519 | putc('\n', stderr); |
| 520 | #endif /* def MPZ_TEST_DIV */ |
| 521 | #ifdef MPZ_MDIV_BUG |
| 522 | mpz_divmod(&x->mpz, &y->mpz, &a->mpz, &b->mpz); |
| 523 | if ((mpz_cmp_ui(&a->mpz, (unsigned long int)0) < 0) |
| 524 | != (mpz_cmp_ui(&b->mpz, (unsigned long int)0) < 0) |
| 525 | && mpz_cmp_ui(&y->mpz, (unsigned long int)0) != 0) { |
| 526 | /* |
| 527 | ** numerator has other sign than denominator: we have |
| 528 | ** to look at the remainder for a correction. |
| 529 | */ |
| 530 | mpz_add(&y->mpz, &y->mpz, &b->mpz); |
| 531 | mpz_sub_ui(&x->mpz, &x->mpz, (unsigned long int)1); |
| 532 | } |
| 533 | #else /* def MPZ_MDIV_BUG */ |
| 534 | mpz_mdivmod( &x->mpz, &y->mpz, &a->mpz, &b->mpz ); |
| 535 | #endif /* def MPZ_MDIV_BUG else */ |
| 536 | #ifdef MPZ_TEST_DIV |
| 537 | fputs("mpz_divmod: mdm result", stderr); |
| 538 | mpz_out_str(stderr, 10, &x->mpz); |
| 539 | putc('\n', stderr); |
| 540 | mpz_out_str(stderr, 10, &y->mpz); |
| 541 | putc('\n', stderr); |
| 542 | #endif /* def MPZ_TEST_DIV */ |
| 543 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 544 | (void)PyTuple_SetItem(z, 0, (PyObject *)x); |
| 545 | (void)PyTuple_SetItem(z, 1, (PyObject *)y); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 546 | |
| 547 | return z; |
| 548 | } /* mpz_div_and_mod() */ |
| 549 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 550 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 551 | mpz_power(mpzobject *a, mpzobject *b, mpzobject *m) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 552 | { |
| 553 | mpzobject *z; |
| 554 | int cmpres; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 555 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 556 | if ((PyObject *)m != Py_None) { |
| 557 | mpzobject *z2; |
| 558 | Py_INCREF(Py_None); |
| 559 | z=(mpzobject *)mpz_power(a, b, (mpzobject *)Py_None); |
| 560 | Py_DECREF(Py_None); |
| 561 | if (z==NULL) return((PyObject *)z); |
| 562 | z2=(mpzobject *)mpz_remainder(z, m); |
| 563 | Py_DECREF(z); |
| 564 | return((PyObject *)z2); |
| 565 | } |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 566 | |
| 567 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 568 | /* the gnu-mp lib sets pow(0,0) to 0, we to 1 */ |
| 569 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 570 | Py_INCREF(mpz_value_one); |
| 571 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 572 | } |
| 573 | |
| 574 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 575 | PyErr_SetString(PyExc_ValueError, |
| 576 | "mpz.pow to negative exponent"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 577 | return NULL; |
| 578 | } |
| 579 | |
| 580 | if ((cmpres = mpz_cmp_ui(&a->mpz, (unsigned long int)0)) == 0) { |
| 581 | /* the base is 0 */ |
| 582 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 583 | Py_INCREF(mpz_value_zero); |
| 584 | return (PyObject *)mpz_value_zero; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 585 | } |
| 586 | else if (cmpres > 0 |
| 587 | && mpz_cmp_ui(&a->mpz, (unsigned long int)1) == 0) { |
| 588 | /* the base is 1 */ |
| 589 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 590 | Py_INCREF(mpz_value_one); |
| 591 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 592 | } |
| 593 | else if (cmpres < 0 |
| 594 | && mpz_cmp_si(&a->mpz, (long int)-1) == 0) { |
| 595 | |
| 596 | MP_INT tmpmpz; |
| 597 | /* the base is -1: pow(-1, any) == 1,-1 for even,uneven b */ |
| 598 | /* XXX this code needs to be optimized: what's better? |
| 599 | mpz_mmod_ui or mpz_mod_2exp, I choose for the latter |
| 600 | for *un*obvious reasons */ |
| 601 | |
| 602 | /* is the exponent even? */ |
| 603 | mpz_init(&tmpmpz); |
| 604 | |
| 605 | /* look to the remainder after a division by (1 << 1) */ |
| 606 | mpz_mod_2exp(&tmpmpz, &b->mpz, (unsigned long int)1); |
| 607 | |
| 608 | if (mpz_cmp_ui(&tmpmpz, (unsigned int)0) == 0) { |
| 609 | mpz_clear(&tmpmpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 610 | Py_INCREF(mpz_value_one); |
| 611 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 612 | } |
| 613 | mpz_clear(&tmpmpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 614 | Py_INCREF(mpz_value_mone); |
| 615 | return (PyObject *)mpz_value_mone; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | #ifdef MPZ_LIB_DOES_CHECKING |
| 619 | /* check if it's doable: sizeof(exp) > sizeof(long) && |
| 620 | abs(base) > 1 ?? --> No Way */ |
| 621 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 622 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 623 | #else /* def MPZ_LIB_DOES_CHECKING */ |
| 624 | /* wet finger method */ |
| 625 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0x10000) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 626 | PyErr_SetString(PyExc_ValueError, |
| 627 | "mpz.pow outrageous exponent"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 628 | return NULL; |
| 629 | } |
| 630 | #endif /* def MPZ_LIB_DOES_CHECKING else */ |
| 631 | |
| 632 | if ((z = newmpzobject()) == NULL) |
| 633 | return NULL; |
| 634 | |
| 635 | mpz_pow_ui(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
| 636 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 637 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 638 | } /* mpz_power() */ |
| 639 | |
| 640 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 641 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 642 | mpz_negative(mpzobject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 643 | { |
| 644 | mpzobject *z; |
| 645 | |
| 646 | |
| 647 | #ifdef MPZ_SPARE_MALLOC |
| 648 | if (mpz_cmp_ui(&v->mpz, (unsigned long int)0) == 0) { |
| 649 | /* -0 == 0 */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 650 | Py_INCREF(v); |
| 651 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 652 | } |
| 653 | #endif /* def MPZ_SPARE_MALLOC */ |
| 654 | |
| 655 | if ((z = newmpzobject()) == NULL) |
| 656 | return NULL; |
| 657 | |
| 658 | mpz_neg(&z->mpz, &v->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 659 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 660 | } /* mpz_negative() */ |
| 661 | |
| 662 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 663 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 664 | mpz_positive(mpzobject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 665 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 666 | Py_INCREF(v); |
| 667 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 668 | } /* mpz_positive() */ |
| 669 | |
| 670 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 671 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 672 | mpz_absolute(mpzobject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 673 | { |
| 674 | mpzobject *z; |
| 675 | |
| 676 | |
| 677 | if (mpz_cmp_ui(&v->mpz, (unsigned long int)0) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 678 | Py_INCREF(v); |
| 679 | return (PyObject *)v; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 680 | } |
| 681 | |
| 682 | if ((z = newmpzobject()) == NULL) |
| 683 | return NULL; |
| 684 | |
| 685 | mpz_neg(&z->mpz, &v->mpz); |
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_absolute() */ |
| 688 | |
| 689 | static int |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 690 | mpz_nonzero(mpzobject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 691 | { |
| 692 | return mpz_cmp_ui(&v->mpz, (unsigned long int)0) != 0; |
| 693 | } /* mpz_nonzero() */ |
| 694 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 695 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 696 | py_mpz_invert(mpzobject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 697 | { |
| 698 | mpzobject *z; |
| 699 | |
| 700 | |
| 701 | /* I think mpz_com does exactly what needed */ |
| 702 | if ((z = newmpzobject()) == NULL) |
| 703 | return NULL; |
| 704 | |
| 705 | mpz_com(&z->mpz, &v->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 706 | return (PyObject *)z; |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 707 | } /* py_mpz_invert() */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 708 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 709 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 710 | mpz_lshift(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 711 | { |
| 712 | int cmpres; |
| 713 | mpzobject *z; |
| 714 | |
| 715 | |
| 716 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 717 | /* a << 0 == a */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 718 | Py_INCREF(a); |
| 719 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 723 | PyErr_SetString(PyExc_ValueError, |
| 724 | "mpz.<< negative shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 725 | return NULL; |
| 726 | } |
| 727 | |
| 728 | #ifdef MPZ_LIB_DOES_CHECKING |
| 729 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 730 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 731 | #else /* def MPZ_LIB_DOES_CHECKING */ |
| 732 | /* wet finger method */ |
| 733 | if (mpz_cmp_ui(&b->mpz, (unsigned long int)0x10000) >= 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 734 | PyErr_SetString(PyExc_ValueError, |
| 735 | "mpz.<< outrageous shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 736 | return NULL; |
| 737 | } |
| 738 | #endif /* def MPZ_LIB_DOES_CHECKING else */ |
| 739 | |
| 740 | if ((z = newmpzobject()) == NULL) |
| 741 | return NULL; |
| 742 | |
| 743 | mpz_mul_2exp(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 744 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 745 | } /* mpz_lshift() */ |
| 746 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 747 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 748 | mpz_rshift(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 749 | { |
| 750 | int cmpres; |
| 751 | mpzobject *z; |
| 752 | |
| 753 | |
| 754 | if ((cmpres = mpz_cmp_ui(&b->mpz, (unsigned long int)0)) == 0) { |
| 755 | /* a >> 0 == a */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 756 | Py_INCREF(a); |
| 757 | return (PyObject *)a; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | if (cmpres < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 761 | PyErr_SetString(PyExc_ValueError, |
| 762 | "mpz.>> negative shift count"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 763 | return NULL; |
| 764 | } |
| 765 | |
| 766 | if (mpz_size(&b->mpz) > 1) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 767 | return (PyObject *)PyErr_NoMemory(); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 768 | |
| 769 | if ((z = newmpzobject()) == NULL) |
| 770 | return NULL; |
| 771 | |
| 772 | mpz_div_2exp(&z->mpz, &a->mpz, mpz_get_ui(&b->mpz)); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 773 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 774 | } /* mpz_rshift() */ |
| 775 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 776 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 777 | mpz_andfunc(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 778 | { |
| 779 | mpzobject *z; |
| 780 | |
| 781 | |
| 782 | if ((z = newmpzobject()) == NULL) |
| 783 | return NULL; |
| 784 | |
| 785 | mpz_and(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 786 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 787 | } /* mpz_andfunc() */ |
| 788 | |
| 789 | /* hack Hack HAck HACk HACK, XXX this code is dead slow */ |
| 790 | void |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 791 | mpz_xor(MP_INT *res, const MP_INT *op1, const MP_INT *op2) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 792 | { |
| 793 | MP_INT tmpmpz; |
| 794 | |
| 795 | mpz_init(&tmpmpz); |
| 796 | |
| 797 | mpz_and(res, op1, op2); |
| 798 | mpz_com(&tmpmpz, res); |
| 799 | mpz_ior(res, op1, op2); |
| 800 | mpz_and(res, res, &tmpmpz); |
| 801 | |
| 802 | mpz_clear(&tmpmpz); |
| 803 | } /* mpz_xor() HACK */ |
| 804 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 805 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 806 | mpz_xorfunc(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 807 | { |
| 808 | mpzobject *z; |
| 809 | |
| 810 | |
| 811 | if ((z = newmpzobject()) == NULL) |
| 812 | return NULL; |
| 813 | |
| 814 | mpz_xor(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 815 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 816 | } /* mpz_xorfunc() */ |
| 817 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 818 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 819 | mpz_orfunc(mpzobject *a, mpzobject *b) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 820 | { |
| 821 | mpzobject *z; |
| 822 | |
| 823 | |
| 824 | if ((z = newmpzobject()) == NULL) |
| 825 | return NULL; |
| 826 | |
| 827 | mpz_ior(&z->mpz, &a->mpz, &b->mpz); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 828 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 829 | } /* mpz_orfunc() */ |
| 830 | |
| 831 | /* MPZ initialisation */ |
| 832 | |
| 833 | #include "longintrepr.h" |
| 834 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 835 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 836 | MPZ_mpz(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 837 | { |
| 838 | mpzobject *mpzp; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 839 | PyObject *objp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 840 | |
| 841 | |
| 842 | #ifdef MPZ_DEBUG |
| 843 | fputs("MPZ_mpz() called...\n", stderr); |
| 844 | #endif /* def MPZ_DEBUG */ |
| 845 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 846 | if (!PyArg_Parse(args, "O", &objp)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 847 | return NULL; |
| 848 | |
| 849 | /* at least we know it's some object */ |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 850 | /* note DON't Py_DECREF args NEITHER objp */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 851 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 852 | if (PyInt_Check(objp)) { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 853 | long lval; |
| 854 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 855 | if (!PyArg_Parse(objp, "l", &lval)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 856 | return NULL; |
| 857 | |
| 858 | if (lval == (long)0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 859 | Py_INCREF(mpz_value_zero); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 860 | mpzp = mpz_value_zero; |
| 861 | } |
| 862 | else if (lval == (long)1) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 863 | Py_INCREF(mpz_value_one); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 864 | mpzp = mpz_value_one; |
| 865 | } |
| 866 | else if ((mpzp = newmpzobject()) == NULL) |
| 867 | return NULL; |
| 868 | else mpz_set_si(&mpzp->mpz, lval); |
| 869 | } |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 870 | else if (PyLong_Check(objp)) { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 871 | MP_INT mplongdigit; |
| 872 | int i; |
| 873 | unsigned char isnegative; |
| 874 | |
| 875 | |
| 876 | if ((mpzp = newmpzobject()) == NULL) |
| 877 | return NULL; |
| 878 | |
| 879 | mpz_set_si(&mpzp->mpz, 0L); |
| 880 | mpz_init(&mplongdigit); |
| 881 | |
| 882 | /* how we're gonna handle this? */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 883 | if ((isnegative = |
| 884 | ((i = ((PyLongObject *)objp)->ob_size) < 0) )) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 885 | i = -i; |
| 886 | |
| 887 | while (i--) { |
| 888 | mpz_set_ui(&mplongdigit, |
| 889 | (unsigned long) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 890 | ((PyLongObject *)objp)->ob_digit[i]); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 891 | mpz_mul_2exp(&mplongdigit,&mplongdigit, |
| 892 | (unsigned long int)i * SHIFT); |
| 893 | mpz_ior(&mpzp->mpz, &mpzp->mpz, &mplongdigit); |
| 894 | } |
| 895 | |
| 896 | if (isnegative) |
| 897 | mpz_neg(&mpzp->mpz, &mpzp->mpz); |
| 898 | |
| 899 | /* get rid of allocation for tmp variable */ |
| 900 | mpz_clear(&mplongdigit); |
| 901 | } |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 902 | else if (PyString_Check(objp)) { |
Andrew M. Kuchling | 4c07f81 | 1998-12-14 19:36:14 +0000 | [diff] [blame] | 903 | unsigned char *cp = (unsigned char *)PyString_AS_STRING(objp); |
Guido van Rossum | 7e48898 | 1998-10-08 02:25:24 +0000 | [diff] [blame] | 904 | int len = PyString_GET_SIZE(objp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 905 | MP_INT mplongdigit; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 906 | |
| 907 | if ((mpzp = newmpzobject()) == NULL) |
| 908 | return NULL; |
| 909 | |
| 910 | mpz_set_si(&mpzp->mpz, 0L); |
| 911 | mpz_init(&mplongdigit); |
| 912 | |
| 913 | /* let's do it the same way as with the long conversion: |
| 914 | without thinking how it can be faster (-: :-) */ |
| 915 | |
| 916 | cp += len; |
| 917 | while (len--) { |
| 918 | mpz_set_ui(&mplongdigit, (unsigned long)*--cp ); |
| 919 | mpz_mul_2exp(&mplongdigit,&mplongdigit, |
| 920 | (unsigned long int)len * 8); |
| 921 | mpz_ior(&mpzp->mpz, &mpzp->mpz, &mplongdigit); |
| 922 | } |
| 923 | |
| 924 | /* get rid of allocation for tmp variable */ |
| 925 | mpz_clear(&mplongdigit); |
| 926 | } |
| 927 | else if (is_mpzobject(objp)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 928 | Py_INCREF(objp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 929 | mpzp = (mpzobject *)objp; |
| 930 | } |
| 931 | else { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 932 | PyErr_SetString(PyExc_TypeError, |
| 933 | "mpz.mpz() expects integer, long, string or mpz object argument"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 934 | return NULL; |
| 935 | } |
| 936 | |
| 937 | |
| 938 | #ifdef MPZ_DEBUG |
| 939 | fputs("MPZ_mpz: created mpz=", stderr); |
| 940 | mpz_out_str(stderr, 10, &mpzp->mpz); |
| 941 | putc('\n', stderr); |
| 942 | #endif /* def MPZ_DEBUG */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 943 | return (PyObject *)mpzp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 944 | } /* MPZ_mpz() */ |
| 945 | |
| 946 | static mpzobject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 947 | mpz_mpzcoerce(PyObject *z) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 948 | { |
| 949 | /* shortcut: 9 out of 10 times the type is already ok */ |
| 950 | if (is_mpzobject(z)) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 951 | Py_INCREF(z); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 952 | return (mpzobject *)z; /* coercion succeeded */ |
| 953 | } |
| 954 | |
| 955 | /* what types do we accept?: intobjects and longobjects */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 956 | if (PyInt_Check(z) || PyLong_Check(z)) |
| 957 | return (mpzobject *)MPZ_mpz((PyObject *)NULL, z); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 958 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 959 | PyErr_SetString(PyExc_TypeError, |
| 960 | "number coercion (to mpzobject) failed"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 961 | return NULL; |
| 962 | } /* mpz_mpzcoerce() */ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 963 | |
| 964 | /* Forward */ |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 965 | static void mpz_divm(MP_INT *res, const MP_INT *num, |
| 966 | const MP_INT *den, const MP_INT *mod); |
Guido van Rossum | 67a5fdb | 1993-12-17 12:09:14 +0000 | [diff] [blame] | 967 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 968 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 969 | MPZ_powm(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 970 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 971 | PyObject *base, *exp, *mod; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 972 | mpzobject *mpzbase = NULL, *mpzexp = NULL, *mpzmod = NULL; |
| 973 | mpzobject *z; |
| 974 | int tstres; |
| 975 | |
| 976 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 977 | if (!PyArg_Parse(args, "(OOO)", &base, &exp, &mod)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 978 | return NULL; |
| 979 | |
| 980 | if ((mpzbase = mpz_mpzcoerce(base)) == NULL |
| 981 | || (mpzexp = mpz_mpzcoerce(exp)) == NULL |
| 982 | || (mpzmod = mpz_mpzcoerce(mod)) == NULL |
| 983 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 984 | Py_XDECREF(mpzbase); |
| 985 | Py_XDECREF(mpzexp); |
| 986 | Py_XDECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 987 | return NULL; |
| 988 | } |
| 989 | |
| 990 | if ((tstres=mpz_cmp_ui(&mpzexp->mpz, (unsigned long int)0)) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 991 | Py_INCREF(mpz_value_one); |
| 992 | return (PyObject *)mpz_value_one; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 993 | } |
| 994 | |
| 995 | if (tstres < 0) { |
| 996 | MP_INT absexp; |
| 997 | /* negative exp */ |
| 998 | |
| 999 | mpz_init_set(&absexp, &mpzexp->mpz); |
| 1000 | mpz_abs(&absexp, &absexp); |
| 1001 | mpz_powm(&z->mpz, &mpzbase->mpz, &absexp, &mpzmod->mpz); |
| 1002 | |
| 1003 | mpz_divm(&z->mpz, &mpz_value_one->mpz, &z->mpz, &mpzmod->mpz); |
| 1004 | |
| 1005 | mpz_clear(&absexp); |
| 1006 | } |
| 1007 | else { |
| 1008 | mpz_powm(&z->mpz, &mpzbase->mpz, &mpzexp->mpz, &mpzmod->mpz); |
| 1009 | } |
| 1010 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1011 | Py_DECREF(mpzbase); |
| 1012 | Py_DECREF(mpzexp); |
| 1013 | Py_DECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1014 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1015 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1016 | } /* MPZ_powm() */ |
| 1017 | |
| 1018 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1019 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1020 | MPZ_gcd(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1021 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1022 | PyObject *op1, *op2; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1023 | mpzobject *mpzop1 = NULL, *mpzop2 = NULL; |
| 1024 | mpzobject *z; |
| 1025 | |
| 1026 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1027 | if (!PyArg_Parse(args, "(OO)", &op1, &op2)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1028 | return NULL; |
| 1029 | |
| 1030 | if ((mpzop1 = mpz_mpzcoerce(op1)) == NULL |
| 1031 | || (mpzop2 = mpz_mpzcoerce(op2)) == NULL |
| 1032 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1033 | Py_XDECREF(mpzop1); |
| 1034 | Py_XDECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1035 | return NULL; |
| 1036 | } |
| 1037 | |
| 1038 | /* ok, we have three mpzobjects, and an initialised result holder */ |
| 1039 | mpz_gcd(&z->mpz, &mpzop1->mpz, &mpzop2->mpz); |
| 1040 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1041 | Py_DECREF(mpzop1); |
| 1042 | Py_DECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1043 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1044 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1045 | } /* MPZ_gcd() */ |
| 1046 | |
| 1047 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1048 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1049 | MPZ_gcdext(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1050 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1051 | PyObject *op1, *op2, *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1052 | mpzobject *mpzop1 = NULL, *mpzop2 = NULL; |
| 1053 | mpzobject *g = NULL, *s = NULL, *t = NULL; |
| 1054 | |
| 1055 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1056 | if (!PyArg_Parse(args, "(OO)", &op1, &op2)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1057 | return NULL; |
| 1058 | |
| 1059 | if ((mpzop1 = mpz_mpzcoerce(op1)) == NULL |
| 1060 | || (mpzop2 = mpz_mpzcoerce(op2)) == NULL |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1061 | || (z = PyTuple_New(3)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1062 | || (g = newmpzobject()) == NULL |
| 1063 | || (s = newmpzobject()) == NULL |
| 1064 | || (t = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1065 | Py_XDECREF(mpzop1); |
| 1066 | Py_XDECREF(mpzop2); |
| 1067 | Py_XDECREF(z); |
| 1068 | Py_XDECREF(g); |
| 1069 | Py_XDECREF(s); |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1070 | /*Py_XDECREF(t);*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1071 | return NULL; |
| 1072 | } |
| 1073 | |
| 1074 | mpz_gcdext(&g->mpz, &s->mpz, &t->mpz, &mpzop1->mpz, &mpzop2->mpz); |
| 1075 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1076 | Py_DECREF(mpzop1); |
| 1077 | Py_DECREF(mpzop2); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1078 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1079 | (void)PyTuple_SetItem(z, 0, (PyObject *)g); |
| 1080 | (void)PyTuple_SetItem(z, 1, (PyObject *)s); |
| 1081 | (void)PyTuple_SetItem(z, 2, (PyObject *)t); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1082 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1083 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1084 | } /* MPZ_gcdext() */ |
| 1085 | |
| 1086 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1087 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1088 | MPZ_sqrt(PyObject *self, PyObject *args) |
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 | PyObject *op; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1091 | mpzobject *mpzop = NULL; |
| 1092 | mpzobject *z; |
| 1093 | |
| 1094 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1095 | if (!PyArg_Parse(args, "O", &op)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1096 | return NULL; |
| 1097 | |
| 1098 | if ((mpzop = mpz_mpzcoerce(op)) == NULL |
| 1099 | || (z = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1100 | Py_XDECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1101 | return NULL; |
| 1102 | } |
| 1103 | |
| 1104 | mpz_sqrt(&z->mpz, &mpzop->mpz); |
| 1105 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1106 | Py_DECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1107 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1108 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1109 | } /* MPZ_sqrt() */ |
| 1110 | |
| 1111 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1112 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1113 | MPZ_sqrtrem(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1114 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1115 | PyObject *op, *z = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1116 | mpzobject *mpzop = NULL; |
| 1117 | mpzobject *root = NULL, *rem = NULL; |
| 1118 | |
| 1119 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1120 | if (!PyArg_Parse(args, "O", &op)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1121 | return NULL; |
| 1122 | |
| 1123 | if ((mpzop = mpz_mpzcoerce(op)) == NULL |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1124 | || (z = PyTuple_New(2)) == NULL |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1125 | || (root = newmpzobject()) == NULL |
| 1126 | || (rem = newmpzobject()) == NULL) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1127 | Py_XDECREF(mpzop); |
| 1128 | Py_XDECREF(z); |
| 1129 | Py_XDECREF(root); |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1130 | /*Py_XDECREF(rem);*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1131 | return NULL; |
| 1132 | } |
| 1133 | |
| 1134 | mpz_sqrtrem(&root->mpz, &rem->mpz, &mpzop->mpz); |
| 1135 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1136 | Py_DECREF(mpzop); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1137 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1138 | (void)PyTuple_SetItem(z, 0, (PyObject *)root); |
| 1139 | (void)PyTuple_SetItem(z, 1, (PyObject *)rem); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1140 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1141 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1142 | } /* MPZ_sqrtrem() */ |
| 1143 | |
| 1144 | |
Guido van Rossum | 67a5fdb | 1993-12-17 12:09:14 +0000 | [diff] [blame] | 1145 | static void |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1146 | mpz_divm(MP_INT *res, const MP_INT *num, const MP_INT *den, const MP_INT *mod) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1147 | { |
| 1148 | MP_INT s0, s1, q, r, x, d0, d1; |
| 1149 | |
| 1150 | mpz_init_set(&s0, num); |
| 1151 | mpz_init_set_ui(&s1, 0); |
| 1152 | mpz_init(&q); |
| 1153 | mpz_init(&r); |
| 1154 | mpz_init(&x); |
| 1155 | mpz_init_set(&d0, den); |
| 1156 | mpz_init_set(&d1, mod); |
| 1157 | |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1158 | #ifdef GMP2 |
| 1159 | while (d1._mp_size != 0) { |
| 1160 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1161 | while (d1.size != 0) { |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1162 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1163 | mpz_divmod(&q, &r, &d0, &d1); |
| 1164 | mpz_set(&d0, &d1); |
| 1165 | mpz_set(&d1, &r); |
| 1166 | |
| 1167 | mpz_mul(&x, &s1, &q); |
| 1168 | mpz_sub(&x, &s0, &x); |
| 1169 | mpz_set(&s0, &s1); |
| 1170 | mpz_set(&s1, &x); |
| 1171 | } |
| 1172 | |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1173 | #ifdef GMP2 |
| 1174 | if (d0._mp_size != 1 || d0._mp_d[0] != 1) |
| 1175 | res->_mp_size = 0; /* trouble: the gcd != 1; set s to zero */ |
| 1176 | #else |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1177 | if (d0.size != 1 || d0.d[0] != 1) |
| 1178 | res->size = 0; /* trouble: the gcd != 1; set s to zero */ |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1179 | #endif |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1180 | else { |
| 1181 | #ifdef MPZ_MDIV_BUG |
| 1182 | /* watch out here! first check the signs, and then perform |
| 1183 | the mpz_mod() since mod could point to res */ |
| 1184 | if ((s0.size < 0) != (mod->size < 0)) { |
| 1185 | mpz_mod(res, &s0, mod); |
| 1186 | |
| 1187 | if (res->size) |
| 1188 | mpz_add(res, res, mod); |
| 1189 | } |
| 1190 | else |
| 1191 | mpz_mod(res, &s0, mod); |
| 1192 | |
| 1193 | #else /* def MPZ_MDIV_BUG */ |
| 1194 | mpz_mmod(res, &s0, mod); |
| 1195 | #endif /* def MPZ_MDIV_BUG else */ |
| 1196 | } |
| 1197 | |
| 1198 | mpz_clear(&s0); |
| 1199 | mpz_clear(&s1); |
| 1200 | mpz_clear(&q); |
| 1201 | mpz_clear(&r); |
| 1202 | mpz_clear(&x); |
| 1203 | mpz_clear(&d0); |
| 1204 | mpz_clear(&d1); |
| 1205 | } /* mpz_divm() */ |
| 1206 | |
| 1207 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1208 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1209 | MPZ_divm(PyObject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1210 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1211 | PyObject *num, *den, *mod; |
Fred Drake | 06fdd2d | 2000-10-11 21:53:34 +0000 | [diff] [blame] | 1212 | mpzobject *mpznum, *mpzden = NULL, *mpzmod = NULL; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1213 | mpzobject *z = NULL; |
| 1214 | |
| 1215 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1216 | if (!PyArg_Parse(args, "(OOO)", &num, &den, &mod)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1217 | return NULL; |
| 1218 | |
| 1219 | if ((mpznum = mpz_mpzcoerce(num)) == NULL |
| 1220 | || (mpzden = mpz_mpzcoerce(den)) == NULL |
| 1221 | || (mpzmod = mpz_mpzcoerce(mod)) == NULL |
| 1222 | || (z = newmpzobject()) == NULL ) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1223 | Py_XDECREF(mpznum); |
| 1224 | Py_XDECREF(mpzden); |
| 1225 | Py_XDECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1226 | return NULL; |
| 1227 | } |
| 1228 | |
| 1229 | mpz_divm(&z->mpz, &mpznum->mpz, &mpzden->mpz, &mpzmod->mpz); |
| 1230 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1231 | Py_DECREF(mpznum); |
| 1232 | Py_DECREF(mpzden); |
| 1233 | Py_DECREF(mpzmod); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1234 | |
| 1235 | if (mpz_cmp_ui(&z->mpz, (unsigned long int)0) == 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1236 | Py_DECREF(z); |
| 1237 | PyErr_SetString(PyExc_ValueError, |
| 1238 | "gcd(den, mod) != 1 or num == 0"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1239 | return NULL; |
| 1240 | } |
| 1241 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1242 | return (PyObject *)z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1243 | } /* MPZ_divm() */ |
| 1244 | |
| 1245 | |
| 1246 | /* MPZ methods-as-attributes */ |
| 1247 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1248 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1249 | mpz_int(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1250 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1251 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1252 | mpz_int(mpzobject *self) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1253 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1254 | { |
| 1255 | long sli; |
| 1256 | |
| 1257 | |
| 1258 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1259 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1260 | return NULL; |
| 1261 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1262 | |
| 1263 | if (mpz_size(&self->mpz) > 1 |
| 1264 | || (sli = (long)mpz_get_ui(&self->mpz)) < (long)0 ) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1265 | PyErr_SetString(PyExc_ValueError, |
| 1266 | "mpz.int() arg too long to convert"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1267 | return NULL; |
| 1268 | } |
| 1269 | |
| 1270 | if (mpz_cmp_ui(&self->mpz, (unsigned long)0) < 0) |
| 1271 | sli = -sli; |
| 1272 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1273 | return PyInt_FromLong(sli); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1274 | } /* mpz_int() */ |
| 1275 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1276 | static PyObject * |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1277 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1278 | mpz_long(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1279 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1280 | mpz_long(mpzobject *self) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1281 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1282 | { |
| 1283 | int i, isnegative; |
| 1284 | unsigned long int uli; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1285 | PyLongObject *longobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1286 | int ldcount; |
| 1287 | int bitpointer, newbitpointer; |
| 1288 | MP_INT mpzscratch; |
| 1289 | |
| 1290 | |
| 1291 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1292 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1293 | return NULL; |
| 1294 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1295 | |
| 1296 | /* determine length of python-long to be allocated */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1297 | if ((longobjp = _PyLong_New(i = (int) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1298 | ((mpz_size(&self->mpz) * BITS_PER_MP_LIMB |
| 1299 | + SHIFT - 1) / |
| 1300 | SHIFT))) == NULL) |
| 1301 | return NULL; |
| 1302 | |
| 1303 | /* determine sign, and copy self to scratch var */ |
| 1304 | mpz_init_set(&mpzscratch, &self->mpz); |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1305 | 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] | 1306 | mpz_neg(&mpzscratch, &mpzscratch); |
| 1307 | |
| 1308 | /* let those bits come, let those bits go, |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1309 | e.g. dismantle mpzscratch, build PyLongObject */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1310 | |
| 1311 | bitpointer = 0; /* the number of valid bits in stock */ |
| 1312 | newbitpointer = 0; |
| 1313 | ldcount = 0; /* the python-long limb counter */ |
| 1314 | uli = (unsigned long int)0; |
| 1315 | while (i--) { |
| 1316 | longobjp->ob_digit[ldcount] = uli & MASK; |
| 1317 | |
| 1318 | /* check if we've had enough bits for this digit */ |
| 1319 | if (bitpointer < SHIFT) { |
| 1320 | uli = mpz_get_ui(&mpzscratch); |
| 1321 | longobjp->ob_digit[ldcount] |= |
| 1322 | (uli << bitpointer) & MASK; |
| 1323 | uli >>= SHIFT-bitpointer; |
| 1324 | bitpointer += BITS_PER_MP_LIMB; |
| 1325 | mpz_div_2exp(&mpzscratch, &mpzscratch, |
| 1326 | BITS_PER_MP_LIMB); |
| 1327 | } |
| 1328 | else |
| 1329 | uli >>= SHIFT; |
| 1330 | bitpointer -= SHIFT; |
| 1331 | ldcount++; |
| 1332 | } |
| 1333 | |
| 1334 | assert(mpz_cmp_ui(&mpzscratch, (unsigned long int)0) == 0); |
| 1335 | mpz_clear(&mpzscratch); |
| 1336 | assert(ldcount <= longobjp->ob_size); |
| 1337 | |
| 1338 | /* long_normalize() is file-static */ |
| 1339 | /* longobjp = long_normalize(longobjp); */ |
| 1340 | while (ldcount > 0 && longobjp->ob_digit[ldcount-1] == 0) |
| 1341 | ldcount--; |
| 1342 | longobjp->ob_size = ldcount; |
| 1343 | |
| 1344 | |
| 1345 | if (isnegative) |
| 1346 | longobjp->ob_size = -longobjp->ob_size; |
| 1347 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1348 | return (PyObject *)longobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1349 | |
| 1350 | } /* mpz_long() */ |
| 1351 | |
| 1352 | |
| 1353 | /* I would have avoided pow() anyways, so ... */ |
| 1354 | static const double multiplier = 256.0 * 256.0 * 256.0 * 256.0; |
| 1355 | |
| 1356 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1357 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1358 | mpz_float(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1359 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1360 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1361 | mpz_float(mpzobject *self) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1362 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1363 | { |
| 1364 | int i, isnegative; |
| 1365 | double x; |
| 1366 | double mulstate; |
| 1367 | MP_INT mpzscratch; |
| 1368 | |
| 1369 | |
| 1370 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1371 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1372 | return NULL; |
| 1373 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1374 | |
| 1375 | i = (int)mpz_size(&self->mpz); |
| 1376 | |
| 1377 | /* determine sign, and copy abs(self) to scratch var */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1378 | if ((isnegative = (mpz_cmp_ui(&self->mpz, (unsigned long int)0) < 0))) |
| 1379 | { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1380 | mpz_init(&mpzscratch); |
| 1381 | mpz_neg(&mpzscratch, &self->mpz); |
| 1382 | } |
| 1383 | else |
| 1384 | mpz_init_set(&mpzscratch, &self->mpz); |
| 1385 | |
| 1386 | /* let those bits come, let those bits go, |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1387 | e.g. dismantle mpzscratch, build PyFloatObject */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1388 | |
Guido van Rossum | 52fa3a6 | 1997-02-14 22:59:58 +0000 | [diff] [blame] | 1389 | /* Can this overflow? Dunno, protect against that possibility. */ |
| 1390 | PyFPE_START_PROTECT("mpz_float", return 0) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1391 | x = 0.0; |
| 1392 | mulstate = 1.0; |
| 1393 | while (i--) { |
| 1394 | x += mulstate * mpz_get_ui(&mpzscratch); |
| 1395 | mulstate *= multiplier; |
| 1396 | mpz_div_2exp(&mpzscratch, &mpzscratch, BITS_PER_MP_LIMB); |
| 1397 | } |
Guido van Rossum | 45b8391 | 1997-03-14 04:32:50 +0000 | [diff] [blame] | 1398 | PyFPE_END_PROTECT(mulstate) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1399 | |
| 1400 | assert(mpz_cmp_ui(&mpzscratch, (unsigned long int)0) == 0); |
| 1401 | mpz_clear(&mpzscratch); |
| 1402 | |
| 1403 | if (isnegative) |
| 1404 | x = -x; |
| 1405 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1406 | return PyFloat_FromDouble(x); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1407 | |
| 1408 | } /* mpz_float() */ |
| 1409 | |
| 1410 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1411 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1412 | mpz_hex(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1413 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1414 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1415 | mpz_hex(mpzobject *self) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1416 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1417 | { |
| 1418 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1419 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1420 | return NULL; |
| 1421 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1422 | |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1423 | return mpz_format((PyObject *)self, 16, (unsigned char)1); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1424 | } /* mpz_hex() */ |
| 1425 | |
| 1426 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1427 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1428 | mpz_oct(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1429 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1430 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1431 | mpz_oct(mpzobject *self) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1432 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
| 1433 | { |
| 1434 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1435 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1436 | return NULL; |
| 1437 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1438 | |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1439 | return mpz_format((PyObject *)self, 8, (unsigned char)1); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1440 | } /* mpz_oct() */ |
| 1441 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1442 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1443 | mpz_binary(mpzobject *self, PyObject *args) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1444 | { |
| 1445 | int size; |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1446 | PyStringObject *strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1447 | char *cp; |
| 1448 | MP_INT mp; |
| 1449 | unsigned long ldigit; |
| 1450 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1451 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1452 | return NULL; |
| 1453 | |
| 1454 | if (mpz_cmp_ui(&self->mpz, (unsigned long int)0) < 0) { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1455 | PyErr_SetString(PyExc_ValueError, |
| 1456 | "mpz.binary() arg must be >= 0"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1457 | return NULL; |
| 1458 | } |
| 1459 | |
| 1460 | mpz_init_set(&mp, &self->mpz); |
| 1461 | size = (int)mpz_size(&mp); |
| 1462 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1463 | if ((strobjp = (PyStringObject *) |
| 1464 | PyString_FromStringAndSize( |
| 1465 | (char *)0, size * sizeof (unsigned long int))) == NULL) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1466 | return NULL; |
| 1467 | |
| 1468 | /* get the beginning of the string memory and start copying things */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1469 | cp = PyString_AS_STRING(strobjp); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1470 | |
| 1471 | /* this has been programmed using a (fairly) decent lib-i/f it could |
| 1472 | be must faster if we looked into the GMP lib */ |
| 1473 | while (size--) { |
| 1474 | ldigit = mpz_get_ui(&mp); |
| 1475 | mpz_div_2exp(&mp, &mp, BITS_PER_MP_LIMB); |
| 1476 | *cp++ = (unsigned char)(ldigit & 0xFF); |
| 1477 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1478 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1479 | *cp++ = (unsigned char)((ldigit >>= 8) & 0xFF); |
| 1480 | } |
| 1481 | |
| 1482 | while (strobjp->ob_size && !*--cp) |
| 1483 | strobjp->ob_size--; |
| 1484 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1485 | return (PyObject *)strobjp; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1486 | } /* mpz_binary() */ |
| 1487 | |
| 1488 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1489 | static PyMethodDef mpz_methods[] = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1490 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
| 1491 | {"int", mpz_int}, |
| 1492 | {"long", mpz_long}, |
| 1493 | {"float", mpz_float}, |
| 1494 | {"hex", mpz_hex}, |
| 1495 | {"oct", mpz_oct}, |
| 1496 | #endif /* def MPZ_CONVERSIONS_AS_METHODS */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1497 | {"binary", (PyCFunction)mpz_binary}, |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1498 | {NULL, NULL} /* sentinel */ |
| 1499 | }; |
| 1500 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1501 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1502 | mpz_getattr(mpzobject *self, char *name) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1503 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1504 | return Py_FindMethod(mpz_methods, (PyObject *)self, name); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1505 | } /* mpz_getattr() */ |
| 1506 | |
| 1507 | |
| 1508 | static int |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1509 | mpz_coerce(PyObject **pv, PyObject **pw) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1510 | { |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1511 | PyObject *z; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1512 | |
| 1513 | #ifdef MPZ_DEBUG |
| 1514 | fputs("mpz_coerce() called...\n", stderr); |
| 1515 | #endif /* def MPZ_DEBUG */ |
| 1516 | |
| 1517 | assert(is_mpzobject(*pv)); |
| 1518 | |
| 1519 | /* always convert other arg to mpz value, except for floats */ |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1520 | if (!PyFloat_Check(*pw)) { |
| 1521 | if ((z = (PyObject *)mpz_mpzcoerce(*pw)) == NULL) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1522 | return -1; /* -1: an error always has been set */ |
| 1523 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1524 | Py_INCREF(*pv); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1525 | *pw = z; |
| 1526 | } |
| 1527 | else { |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1528 | #ifdef MPZ_CONVERSIONS_AS_METHODS |
| 1529 | if ((z = mpz_float((mpzobject *)(*pv), NULL)) == NULL) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1530 | return -1; |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1531 | #else /* def MPZ_CONVERSIONS_AS_METHODS */ |
| 1532 | if ((z = mpz_float((mpzobject *)(*pv))) == NULL) |
| 1533 | return -1; |
| 1534 | #endif /* def MPZ_CONVERSIONS_AS_METHODS else */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1535 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1536 | Py_INCREF(*pw); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1537 | *pv = z; |
| 1538 | } |
| 1539 | return 0; /* coercion succeeded */ |
| 1540 | |
| 1541 | } /* mpz_coerce() */ |
| 1542 | |
| 1543 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1544 | static PyObject * |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1545 | mpz_repr(PyObject *v) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1546 | { |
| 1547 | return mpz_format(v, 10, (unsigned char)1); |
| 1548 | } /* mpz_repr() */ |
| 1549 | |
| 1550 | |
| 1551 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1552 | #define UF (unaryfunc) |
| 1553 | #define BF (binaryfunc) |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 1554 | #define TF (ternaryfunc) |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1555 | #define IF (inquiry) |
| 1556 | #define CF (coercion) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1557 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1558 | static PyNumberMethods mpz_as_number = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1559 | BF mpz_addition, /*nb_add*/ |
| 1560 | BF mpz_substract, /*nb_subtract*/ |
| 1561 | BF mpz_multiply, /*nb_multiply*/ |
| 1562 | BF mpz_divide, /*nb_divide*/ |
| 1563 | BF mpz_remainder, /*nb_remainder*/ |
| 1564 | BF mpz_div_and_mod, /*nb_divmod*/ |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 1565 | TF mpz_power, /*nb_power*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1566 | UF mpz_negative, /*nb_negative*/ |
| 1567 | UF mpz_positive, /*tp_positive*/ |
| 1568 | UF mpz_absolute, /*tp_absolute*/ |
| 1569 | IF mpz_nonzero, /*tp_nonzero*/ |
Guido van Rossum | 272841c | 1996-08-19 23:06:45 +0000 | [diff] [blame] | 1570 | UF py_mpz_invert, /*nb_invert*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1571 | BF mpz_lshift, /*nb_lshift*/ |
| 1572 | BF mpz_rshift, /*nb_rshift*/ |
| 1573 | BF mpz_andfunc, /*nb_and*/ |
| 1574 | BF mpz_xorfunc, /*nb_xor*/ |
| 1575 | BF mpz_orfunc, /*nb_or*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1576 | CF mpz_coerce, /*nb_coerce*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1577 | #ifndef MPZ_CONVERSIONS_AS_METHODS |
| 1578 | UF mpz_int, /*nb_int*/ |
| 1579 | UF mpz_long, /*nb_long*/ |
| 1580 | UF mpz_float, /*nb_float*/ |
| 1581 | UF mpz_oct, /*nb_oct*/ |
| 1582 | UF mpz_hex, /*nb_hex*/ |
| 1583 | #endif /* ndef MPZ_CONVERSIONS_AS_METHODS */ |
| 1584 | }; |
| 1585 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1586 | static PyTypeObject MPZtype = { |
| 1587 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1588 | 0, /*ob_size*/ |
| 1589 | "mpz", /*tp_name*/ |
| 1590 | sizeof(mpzobject), /*tp_size*/ |
| 1591 | 0, /*tp_itemsize*/ |
| 1592 | /* methods */ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1593 | (destructor)mpz_dealloc, /*tp_dealloc*/ |
| 1594 | 0, /*tp_print*/ |
| 1595 | (getattrfunc)mpz_getattr, /*tp_getattr*/ |
| 1596 | 0, /*tp_setattr*/ |
| 1597 | (cmpfunc)mpz_compare, /*tp_compare*/ |
| 1598 | (reprfunc)mpz_repr, /*tp_repr*/ |
| 1599 | &mpz_as_number, /*tp_as_number*/ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1600 | }; |
| 1601 | |
| 1602 | /* List of functions exported by this module */ |
| 1603 | |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1604 | static PyMethodDef mpz_functions[] = { |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1605 | #if 0 |
| 1606 | {initialiser_name, MPZ_mpz}, |
| 1607 | #else /* 0 */ |
Barry Warsaw | abb7efe | 1996-12-09 23:22:35 +0000 | [diff] [blame] | 1608 | /* until guido ``fixes'' struct PyMethodDef */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1609 | {(char *)initialiser_name, MPZ_mpz}, |
| 1610 | #endif /* 0 else */ |
| 1611 | {"powm", MPZ_powm}, |
| 1612 | {"gcd", MPZ_gcd}, |
| 1613 | {"gcdext", MPZ_gcdext}, |
| 1614 | {"sqrt", MPZ_sqrt}, |
| 1615 | {"sqrtrem", MPZ_sqrtrem}, |
| 1616 | {"divm", MPZ_divm}, |
| 1617 | {NULL, NULL} /* Sentinel */ |
| 1618 | }; |
| 1619 | |
| 1620 | |
| 1621 | /* #define MP_TEST_ALLOC */ |
| 1622 | |
| 1623 | #ifdef MP_TEST_ALLOC |
| 1624 | #define MP_TEST_SIZE 4 |
| 1625 | static const char mp_test_magic[MP_TEST_SIZE] = {'\xAA','\xAA','\xAA','\xAA'}; |
Thomas Wouters | f3f33dc | 2000-07-21 06:00:07 +0000 | [diff] [blame] | 1626 | static mp_test_error(int *location) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1627 | { |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 1628 | /* assumptions: *alloc returns address divisible by 4, |
| 1629 | mpz_* routines allocate in chunks divisible by four */ |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1630 | fprintf(stderr, "MP_TEST_ERROR: location holds 0x%08d\n", *location ); |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1631 | Py_FatalError("MP_TEST_ERROR"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1632 | } /* static mp_test_error() */ |
| 1633 | #define MP_EXTRA_ALLOC(size) ((size) + MP_TEST_SIZE) |
| 1634 | #define MP_SET_TEST(basep,size) (void)memcpy( ((char *)(basep))+(size), mp_test_magic, MP_TEST_SIZE) |
| 1635 | #define MP_DO_TEST(basep,size) if ( !memcmp( ((char *)(basep))+(size), mp_test_magic, MP_TEST_SIZE ) ) \ |
| 1636 | ; \ |
| 1637 | else \ |
| 1638 | mp_test_error((int *)((char *)(basep) + size)) |
| 1639 | #else /* def MP_TEST_ALLOC */ |
| 1640 | #define MP_EXTRA_ALLOC(size) (size) |
| 1641 | #define MP_SET_TEST(basep,size) |
| 1642 | #define MP_DO_TEST(basep,size) |
| 1643 | #endif /* def MP_TEST_ALLOC else */ |
| 1644 | |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1645 | void *mp_allocate(size_t alloc_size) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1646 | { |
| 1647 | void *res; |
| 1648 | |
| 1649 | #ifdef MPZ_DEBUG |
| 1650 | fprintf(stderr, "mp_allocate : size %ld\n", |
| 1651 | alloc_size); |
| 1652 | #endif /* def MPZ_DEBUG */ |
| 1653 | |
| 1654 | if ( (res = malloc(MP_EXTRA_ALLOC(alloc_size))) == NULL ) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1655 | Py_FatalError("mp_allocate failure"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1656 | |
| 1657 | #ifdef MPZ_DEBUG |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 1658 | fprintf(stderr, "mp_allocate : address %08p\n", res); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1659 | #endif /* def MPZ_DEBUG */ |
| 1660 | |
| 1661 | MP_SET_TEST(res,alloc_size); |
| 1662 | |
| 1663 | return res; |
| 1664 | } /* mp_allocate() */ |
| 1665 | |
| 1666 | |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1667 | void *mp_reallocate(void *ptr, size_t old_size, size_t new_size) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1668 | { |
| 1669 | void *res; |
| 1670 | |
| 1671 | #ifdef MPZ_DEBUG |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 1672 | fprintf(stderr, "mp_reallocate: old address %08p, old size %ld\n", |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1673 | ptr, old_size); |
| 1674 | #endif /* def MPZ_DEBUG */ |
| 1675 | |
| 1676 | MP_DO_TEST(ptr, old_size); |
| 1677 | |
| 1678 | if ( (res = realloc(ptr, MP_EXTRA_ALLOC(new_size))) == NULL ) |
Barry Warsaw | 3bdf746 | 1996-12-09 23:16:31 +0000 | [diff] [blame] | 1679 | Py_FatalError("mp_reallocate failure"); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1680 | |
| 1681 | #ifdef MPZ_DEBUG |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 1682 | fprintf(stderr, "mp_reallocate: new address %08p, new size %ld\n", |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1683 | res, new_size); |
| 1684 | #endif /* def MPZ_DEBUG */ |
| 1685 | |
| 1686 | MP_SET_TEST(res, new_size); |
| 1687 | |
| 1688 | return res; |
| 1689 | } /* mp_reallocate() */ |
| 1690 | |
| 1691 | |
Peter Schneider-Kamp | 3646366 | 2000-07-10 17:14:00 +0000 | [diff] [blame] | 1692 | void mp_free(void *ptr, size_t size) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1693 | { |
| 1694 | |
| 1695 | #ifdef MPZ_DEBUG |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 1696 | fprintf(stderr, "mp_free : old address %08p, old size %ld\n", |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1697 | ptr, size); |
| 1698 | #endif /* def MPZ_DEBUG */ |
| 1699 | |
| 1700 | MP_DO_TEST(ptr, size); |
| 1701 | free(ptr); |
| 1702 | } /* mp_free() */ |
| 1703 | |
| 1704 | |
| 1705 | |
| 1706 | /* Initialize this module. */ |
| 1707 | |
Guido van Rossum | 3886bb6 | 1998-12-04 18:50:17 +0000 | [diff] [blame] | 1708 | DL_EXPORT(void) |
Thomas Wouters | f3f33dc | 2000-07-21 06:00:07 +0000 | [diff] [blame] | 1709 | initmpz(void) |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1710 | { |
Fred Drake | fcc6c68 | 1998-04-03 15:33:43 +0000 | [diff] [blame] | 1711 | PyObject *module; |
| 1712 | PyObject *dict; |
| 1713 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1714 | #ifdef MPZ_DEBUG |
| 1715 | fputs( "initmpz() called...\n", stderr ); |
| 1716 | #endif /* def MPZ_DEBUG */ |
| 1717 | |
| 1718 | mp_set_memory_functions( mp_allocate, mp_reallocate, mp_free ); |
Fred Drake | fcc6c68 | 1998-04-03 15:33:43 +0000 | [diff] [blame] | 1719 | module = Py_InitModule("mpz", mpz_functions); |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1720 | |
| 1721 | /* create some frequently used constants */ |
| 1722 | if ((mpz_value_zero = newmpzobject()) == NULL) |
Barry Warsaw | 9bfd2bf | 2000-09-01 09:01:32 +0000 | [diff] [blame] | 1723 | goto finally; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1724 | mpz_set_ui(&mpz_value_zero->mpz, (unsigned long int)0); |
| 1725 | |
| 1726 | if ((mpz_value_one = newmpzobject()) == NULL) |
Barry Warsaw | 9bfd2bf | 2000-09-01 09:01:32 +0000 | [diff] [blame] | 1727 | goto finally; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1728 | mpz_set_ui(&mpz_value_one->mpz, (unsigned long int)1); |
| 1729 | |
| 1730 | if ((mpz_value_mone = newmpzobject()) == NULL) |
Barry Warsaw | 9bfd2bf | 2000-09-01 09:01:32 +0000 | [diff] [blame] | 1731 | goto finally; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1732 | mpz_set_si(&mpz_value_mone->mpz, (long)-1); |
| 1733 | |
Fred Drake | fcc6c68 | 1998-04-03 15:33:43 +0000 | [diff] [blame] | 1734 | dict = PyModule_GetDict(module); |
| 1735 | if (dict != NULL) { |
| 1736 | PyDict_SetItemString(dict, "MPZType", (PyObject*)&MPZtype); |
| 1737 | } |
Barry Warsaw | 9bfd2bf | 2000-09-01 09:01:32 +0000 | [diff] [blame] | 1738 | finally: |
| 1739 | return; |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1740 | } /* initmpz() */ |
Barry Warsaw | 9bfd2bf | 2000-09-01 09:01:32 +0000 | [diff] [blame] | 1741 | |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1742 | #ifdef MAKEDUMMYINT |
| 1743 | int _mpz_dummy_int; /* XXX otherwise, we're .bss-less (DYNLOAD->Jack?) */ |
| 1744 | #endif /* def MAKEDUMMYINT */ |