Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2 | Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
| 3 | Amsterdam, The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Stichting Mathematisch |
| 12 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 13 | distribution of the software without specific, written prior permission. |
| 14 | |
| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 25 | /* Integer object implementation */ |
| 26 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 27 | #include "allobjects.h" |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 28 | #include "modsupport.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 29 | |
| 30 | /* Standard Booleans */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 31 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 32 | intobject FalseObject = { |
| 33 | OB_HEAD_INIT(&Inttype) |
| 34 | 0 |
| 35 | }; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 36 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 37 | intobject TrueObject = { |
| 38 | OB_HEAD_INIT(&Inttype) |
| 39 | 1 |
| 40 | }; |
| 41 | |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 42 | static object * |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 43 | err_ovf(msg) |
| 44 | char *msg; |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 45 | { |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 46 | err_setstr(OverflowError, msg); |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 47 | return NULL; |
| 48 | } |
| 49 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 50 | /* Integers are quite normal objects, to make object handling uniform. |
| 51 | (Using odd pointers to represent integers would save much space |
| 52 | but require extra checks for this special case throughout the code.) |
| 53 | Since, a typical Python program spends much of its time allocating |
| 54 | and deallocating integers, these operations should be very fast. |
| 55 | Therefore we use a dedicated allocation scheme with a much lower |
| 56 | overhead (in space and time) than straight malloc(): a simple |
| 57 | dedicated free list, filled when necessary with memory from malloc(). |
| 58 | */ |
| 59 | |
| 60 | #define BLOCK_SIZE 1000 /* 1K less typical malloc overhead */ |
| 61 | #define N_INTOBJECTS (BLOCK_SIZE / sizeof(intobject)) |
| 62 | |
| 63 | static intobject * |
| 64 | fill_free_list() |
| 65 | { |
| 66 | intobject *p, *q; |
| 67 | p = NEW(intobject, N_INTOBJECTS); |
| 68 | if (p == NULL) |
| 69 | return (intobject *)err_nomem(); |
| 70 | q = p + N_INTOBJECTS; |
| 71 | while (--q > p) |
| 72 | *(intobject **)q = q-1; |
| 73 | *(intobject **)q = NULL; |
| 74 | return p + N_INTOBJECTS - 1; |
| 75 | } |
| 76 | |
| 77 | static intobject *free_list = NULL; |
| 78 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 79 | object * |
| 80 | newintobject(ival) |
| 81 | long ival; |
| 82 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 83 | register intobject *v; |
| 84 | if (free_list == NULL) { |
| 85 | if ((free_list = fill_free_list()) == NULL) |
| 86 | return NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 87 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 88 | v = free_list; |
| 89 | free_list = *(intobject **)free_list; |
| 90 | NEWREF(v); |
| 91 | v->ob_type = &Inttype; |
| 92 | v->ob_ival = ival; |
| 93 | return (object *) v; |
| 94 | } |
| 95 | |
| 96 | static void |
| 97 | int_dealloc(v) |
| 98 | intobject *v; |
| 99 | { |
| 100 | *(intobject **)v = free_list; |
| 101 | free_list = v; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | long |
| 105 | getintvalue(op) |
| 106 | register object *op; |
| 107 | { |
| 108 | if (!is_intobject(op)) { |
Guido van Rossum | 5c52b6a | 1990-10-21 22:11:03 +0000 | [diff] [blame] | 109 | err_badcall(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 110 | return -1; |
| 111 | } |
| 112 | else |
| 113 | return ((intobject *)op) -> ob_ival; |
| 114 | } |
| 115 | |
| 116 | /* Methods */ |
| 117 | |
Guido van Rossum | 719f5fa | 1992-03-27 17:31:02 +0000 | [diff] [blame] | 118 | /* ARGSUSED */ |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 119 | static int |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 120 | int_print(v, fp, flags) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 121 | intobject *v; |
| 122 | FILE *fp; |
Guido van Rossum | 719f5fa | 1992-03-27 17:31:02 +0000 | [diff] [blame] | 123 | int flags; /* Not used but required by interface */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 124 | { |
| 125 | fprintf(fp, "%ld", v->ob_ival); |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 126 | return 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 130 | int_repr(v) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 131 | intobject *v; |
| 132 | { |
| 133 | char buf[20]; |
| 134 | sprintf(buf, "%ld", v->ob_ival); |
| 135 | return newstringobject(buf); |
| 136 | } |
| 137 | |
| 138 | static int |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 139 | int_compare(v, w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 140 | intobject *v, *w; |
| 141 | { |
| 142 | register long i = v->ob_ival; |
| 143 | register long j = w->ob_ival; |
| 144 | return (i < j) ? -1 : (i > j) ? 1 : 0; |
| 145 | } |
| 146 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 147 | static long |
| 148 | int_hash(v) |
| 149 | intobject *v; |
| 150 | { |
| 151 | long x = v -> ob_ival; |
| 152 | if (x == -1) |
| 153 | x = -2; |
| 154 | return x; |
| 155 | } |
| 156 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 157 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 158 | int_add(v, w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 159 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 160 | intobject *w; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 161 | { |
| 162 | register long a, b, x; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 163 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 164 | b = w->ob_ival; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 165 | x = a + b; |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 166 | if ((x^a) < 0 && (x^b) < 0) |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 167 | return err_ovf("integer addition"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 168 | return newintobject(x); |
| 169 | } |
| 170 | |
| 171 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 172 | int_sub(v, w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 173 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 174 | intobject *w; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 175 | { |
| 176 | register long a, b, x; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 177 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 178 | b = w->ob_ival; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 179 | x = a - b; |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 180 | if ((x^a) < 0 && (x^~b) < 0) |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 181 | return err_ovf("integer subtraction"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 182 | return newintobject(x); |
| 183 | } |
| 184 | |
| 185 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 186 | int_mul(v, w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 187 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 188 | intobject *w; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 189 | { |
| 190 | register long a, b; |
| 191 | double x; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 192 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 193 | b = w->ob_ival; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 194 | x = (double)a * (double)b; |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 195 | if (x > 0x7fffffff || x < (double) (long) 0x80000000) |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 196 | return err_ovf("integer multiplication"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 197 | return newintobject(a * b); |
| 198 | } |
| 199 | |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 200 | static int |
| 201 | i_divmod(x, y, p_xdivy, p_xmody) |
| 202 | register intobject *x, *y; |
| 203 | long *p_xdivy, *p_xmody; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 204 | { |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 205 | long xi = x->ob_ival; |
| 206 | long yi = y->ob_ival; |
| 207 | long xdivy, xmody; |
| 208 | |
| 209 | if (yi == 0) { |
| 210 | err_setstr(ZeroDivisionError, "integer division or modulo"); |
| 211 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 212 | } |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 213 | if (yi < 0) { |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 214 | if (xi < 0) |
| 215 | xdivy = -xi / -yi; |
| 216 | else |
| 217 | xdivy = - (xi / -yi); |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 218 | } |
| 219 | else { |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 220 | if (xi < 0) |
| 221 | xdivy = - (-xi / yi); |
| 222 | else |
| 223 | xdivy = xi / yi; |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 224 | } |
| 225 | xmody = xi - xdivy*yi; |
| 226 | if (xmody < 0 && yi > 0 || xmody > 0 && yi < 0) { |
| 227 | xmody += yi; |
| 228 | xdivy -= 1; |
| 229 | } |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 230 | *p_xdivy = xdivy; |
| 231 | *p_xmody = xmody; |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | static object * |
| 236 | int_div(x, y) |
| 237 | intobject *x; |
| 238 | intobject *y; |
| 239 | { |
| 240 | long d, m; |
| 241 | if (i_divmod(x, y, &d, &m) < 0) |
| 242 | return NULL; |
| 243 | return newintobject(d); |
| 244 | } |
| 245 | |
| 246 | static object * |
| 247 | int_mod(x, y) |
| 248 | intobject *x; |
| 249 | intobject *y; |
| 250 | { |
| 251 | long d, m; |
| 252 | if (i_divmod(x, y, &d, &m) < 0) |
| 253 | return NULL; |
Guido van Rossum | 719f5fa | 1992-03-27 17:31:02 +0000 | [diff] [blame] | 254 | return newintobject(m); |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | static object * |
| 258 | int_divmod(x, y) |
| 259 | intobject *x; |
| 260 | intobject *y; |
| 261 | { |
| 262 | object *v, *v0, *v1; |
| 263 | long d, m; |
| 264 | if (i_divmod(x, y, &d, &m) < 0) |
| 265 | return NULL; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 266 | return mkvalue("(ll)", d, m); |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 270 | int_pow(v, w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 271 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 272 | intobject *w; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 273 | { |
| 274 | register long iv, iw, ix; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 275 | iv = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 276 | iw = w->ob_ival; |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 277 | if (iw < 0) { |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 278 | err_setstr(ValueError, "integer to the negative power"); |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 279 | return NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 280 | } |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 281 | ix = 1; |
| 282 | while (--iw >= 0) { |
| 283 | long prev = ix; |
| 284 | ix = ix * iv; |
| 285 | if (iv == 0) |
| 286 | break; /* 0 to some power -- avoid ix / 0 */ |
| 287 | if (ix / iv != prev) |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 288 | return err_ovf("integer pow()"); |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 289 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 290 | return newintobject(ix); |
| 291 | } |
| 292 | |
| 293 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 294 | int_neg(v) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 295 | intobject *v; |
| 296 | { |
| 297 | register long a, x; |
| 298 | a = v->ob_ival; |
| 299 | x = -a; |
Guido van Rossum | 165e67e | 1990-10-14 20:02:26 +0000 | [diff] [blame] | 300 | if (a < 0 && x < 0) |
Guido van Rossum | 3a62845 | 1991-12-10 13:57:36 +0000 | [diff] [blame] | 301 | return err_ovf("integer negation"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 302 | return newintobject(x); |
| 303 | } |
| 304 | |
| 305 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 306 | int_pos(v) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 307 | intobject *v; |
| 308 | { |
| 309 | INCREF(v); |
| 310 | return (object *)v; |
| 311 | } |
| 312 | |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 313 | static object * |
| 314 | int_abs(v) |
| 315 | intobject *v; |
| 316 | { |
| 317 | if (v->ob_ival >= 0) |
| 318 | return int_pos(v); |
| 319 | else |
| 320 | return int_neg(v); |
| 321 | } |
| 322 | |
Guido van Rossum | 0bff015 | 1991-05-14 12:05:32 +0000 | [diff] [blame] | 323 | static int |
| 324 | int_nonzero(v) |
| 325 | intobject *v; |
| 326 | { |
| 327 | return v->ob_ival != 0; |
| 328 | } |
| 329 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 330 | static object * |
| 331 | int_invert(v) |
| 332 | intobject *v; |
| 333 | { |
| 334 | return newintobject(~v->ob_ival); |
| 335 | } |
| 336 | |
| 337 | static object * |
| 338 | int_lshift(v, w) |
| 339 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 340 | intobject *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 341 | { |
| 342 | register long a, b; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 343 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 344 | b = w->ob_ival; |
Guido van Rossum | f3b351f | 1992-01-14 18:33:22 +0000 | [diff] [blame] | 345 | if (b < 0) { |
| 346 | err_setstr(ValueError, "negative shift count"); |
| 347 | return NULL; |
| 348 | } |
| 349 | if (a == 0 || b == 0) { |
| 350 | INCREF(v); |
| 351 | return (object *) v; |
| 352 | } |
| 353 | if (b >= 32) { |
| 354 | return newintobject(0L); |
| 355 | } |
| 356 | a = (unsigned long)a << b; |
| 357 | return newintobject(a); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | static object * |
| 361 | int_rshift(v, w) |
| 362 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 363 | intobject *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 364 | { |
| 365 | register long a, b; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 366 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 367 | b = w->ob_ival; |
Guido van Rossum | f3b351f | 1992-01-14 18:33:22 +0000 | [diff] [blame] | 368 | if (b < 0) { |
| 369 | err_setstr(ValueError, "negative shift count"); |
| 370 | return NULL; |
| 371 | } |
| 372 | if (a == 0 || b == 0) { |
| 373 | INCREF(v); |
| 374 | return (object *) v; |
| 375 | } |
| 376 | if (b >= 32) { |
| 377 | if (a < 0) |
| 378 | a = -1; |
| 379 | else |
| 380 | a = 0; |
| 381 | } |
| 382 | else { |
| 383 | if (a < 0) |
| 384 | a = ~( ~(unsigned long)a >> b ); |
| 385 | else |
| 386 | a = (unsigned long)a >> b; |
| 387 | } |
| 388 | return newintobject(a); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 389 | } |
| 390 | |
| 391 | static object * |
| 392 | int_and(v, w) |
| 393 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 394 | intobject *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 395 | { |
| 396 | register long a, b; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 397 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 398 | b = w->ob_ival; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 399 | return newintobject(a & b); |
| 400 | } |
| 401 | |
| 402 | static object * |
| 403 | int_xor(v, w) |
| 404 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 405 | intobject *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 406 | { |
| 407 | register long a, b; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 408 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 409 | b = w->ob_ival; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 410 | return newintobject(a ^ b); |
| 411 | } |
| 412 | |
| 413 | static object * |
| 414 | int_or(v, w) |
| 415 | intobject *v; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 416 | intobject *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 417 | { |
| 418 | register long a, b; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 419 | a = v->ob_ival; |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 420 | b = w->ob_ival; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 421 | return newintobject(a | b); |
| 422 | } |
| 423 | |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 424 | static object * |
| 425 | int_int(v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 426 | intobject *v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 427 | { |
| 428 | INCREF(v); |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 429 | return (object *)v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | static object * |
| 433 | int_long(v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 434 | intobject *v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 435 | { |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 436 | return newlongobject((v -> ob_ival)); |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | static object * |
| 440 | int_float(v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 441 | intobject *v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 442 | { |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 443 | return newfloatobject((double)(v -> ob_ival)); |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | static object * |
| 447 | int_oct(v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 448 | intobject *v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 449 | { |
| 450 | char buf[20]; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 451 | long x = v -> ob_ival; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 452 | if (x == 0) |
| 453 | strcpy(buf, "0"); |
| 454 | else if (x > 0) |
| 455 | sprintf(buf, "0%lo", x); |
| 456 | else |
| 457 | sprintf(buf, "-0%lo", -x); |
| 458 | return newstringobject(buf); |
| 459 | } |
| 460 | |
| 461 | static object * |
| 462 | int_hex(v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 463 | intobject *v; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 464 | { |
| 465 | char buf[20]; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 466 | long x = v -> ob_ival; |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 467 | if (x >= 0) |
| 468 | sprintf(buf, "0x%lx", x); |
| 469 | else |
| 470 | sprintf(buf, "-0x%lx", -x); |
| 471 | return newstringobject(buf); |
| 472 | } |
| 473 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 474 | static number_methods int_as_number = { |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 475 | int_add, /*nb_add*/ |
| 476 | int_sub, /*nb_subtract*/ |
| 477 | int_mul, /*nb_multiply*/ |
| 478 | int_div, /*nb_divide*/ |
Guido van Rossum | 2b16a6f | 1992-01-19 16:28:51 +0000 | [diff] [blame] | 479 | int_mod, /*nb_remainder*/ |
Guido van Rossum | 0046695 | 1991-05-05 20:08:27 +0000 | [diff] [blame] | 480 | int_divmod, /*nb_divmod*/ |
| 481 | int_pow, /*nb_power*/ |
| 482 | int_neg, /*nb_negative*/ |
| 483 | int_pos, /*nb_positive*/ |
| 484 | int_abs, /*nb_absolute*/ |
Guido van Rossum | 0bff015 | 1991-05-14 12:05:32 +0000 | [diff] [blame] | 485 | int_nonzero, /*nb_nonzero*/ |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 486 | int_invert, /*nb_invert*/ |
| 487 | int_lshift, /*nb_lshift*/ |
| 488 | int_rshift, /*nb_rshift*/ |
| 489 | int_and, /*nb_and*/ |
| 490 | int_xor, /*nb_xor*/ |
| 491 | int_or, /*nb_or*/ |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 492 | 0, /*nb_coerce*/ |
| 493 | int_int, /*nb_int*/ |
| 494 | int_long, /*nb_long*/ |
| 495 | int_float, /*nb_float*/ |
| 496 | int_oct, /*nb_oct*/ |
| 497 | int_hex, /*nb_hex*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 498 | }; |
| 499 | |
| 500 | typeobject Inttype = { |
| 501 | OB_HEAD_INIT(&Typetype) |
| 502 | 0, |
| 503 | "int", |
| 504 | sizeof(intobject), |
| 505 | 0, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 506 | int_dealloc, /*tp_dealloc*/ |
| 507 | int_print, /*tp_print*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 508 | 0, /*tp_getattr*/ |
| 509 | 0, /*tp_setattr*/ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 510 | int_compare, /*tp_compare*/ |
| 511 | int_repr, /*tp_repr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 512 | &int_as_number, /*tp_as_number*/ |
| 513 | 0, /*tp_as_sequence*/ |
| 514 | 0, /*tp_as_mapping*/ |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 515 | int_hash, /*tp_hash*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 516 | }; |