Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
| 11 | /* Array object implementation */ |
| 12 | |
| 13 | /* An array is a uniform list -- all items have the same type. |
| 14 | The item type is restricted to simple C types like int or float */ |
| 15 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 16 | #include "Python.h" |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 17 | |
Guido van Rossum | 0c70954 | 1994-08-19 12:01:32 +0000 | [diff] [blame] | 18 | #ifdef STDC_HEADERS |
| 19 | #include <stddef.h> |
Guido van Rossum | 7f1de83 | 1999-08-27 20:33:52 +0000 | [diff] [blame] | 20 | #else /* !STDC_HEADERS */ |
| 21 | #ifndef DONT_HAVE_SYS_TYPES_H |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 22 | #include <sys/types.h> /* For size_t */ |
Guido van Rossum | 7f1de83 | 1999-08-27 20:33:52 +0000 | [diff] [blame] | 23 | #endif /* DONT_HAVE_SYS_TYPES_H */ |
| 24 | #endif /* !STDC_HEADERS */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 25 | |
| 26 | struct arrayobject; /* Forward */ |
| 27 | |
| 28 | struct arraydescr { |
| 29 | int typecode; |
| 30 | int itemsize; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 31 | PyObject * (*getitem) Py_FPROTO((struct arrayobject *, int)); |
| 32 | int (*setitem) Py_FPROTO((struct arrayobject *, int, PyObject *)); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 33 | }; |
| 34 | |
| 35 | typedef struct arrayobject { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 36 | PyObject_VAR_HEAD |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 37 | char *ob_item; |
| 38 | struct arraydescr *ob_descr; |
| 39 | } arrayobject; |
| 40 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 41 | staticforward PyTypeObject Arraytype; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 42 | |
| 43 | #define is_arrayobject(op) ((op)->ob_type == &Arraytype) |
| 44 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 45 | /* Forward */ |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 46 | static PyObject *newarrayobject Py_PROTO((int, struct arraydescr *)); |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 47 | #if 0 |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 48 | static int getarraysize Py_PROTO((PyObject *)); |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 49 | #endif |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 50 | static PyObject *getarrayitem Py_PROTO((PyObject *, int)); |
| 51 | static int setarrayitem Py_PROTO((PyObject *, int, PyObject *)); |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 52 | #if 0 |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 53 | static int insarrayitem Py_PROTO((PyObject *, int, PyObject *)); |
| 54 | static int addarrayitem Py_PROTO((PyObject *, PyObject *)); |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 55 | #endif |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 56 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 57 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 58 | c_getitem(ap, i) |
| 59 | arrayobject *ap; |
| 60 | int i; |
| 61 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 62 | return PyString_FromStringAndSize(&((char *)ap->ob_item)[i], 1); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | static int |
| 66 | c_setitem(ap, i, v) |
| 67 | arrayobject *ap; |
| 68 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 69 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 70 | { |
| 71 | char x; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 72 | if (!PyArg_Parse(v, "c;array item must be char", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 73 | return -1; |
| 74 | if (i >= 0) |
| 75 | ((char *)ap->ob_item)[i] = x; |
| 76 | return 0; |
| 77 | } |
| 78 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 79 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 80 | b_getitem(ap, i) |
| 81 | arrayobject *ap; |
| 82 | int i; |
| 83 | { |
| 84 | long x = ((char *)ap->ob_item)[i]; |
| 85 | if (x >= 128) |
| 86 | x -= 256; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 87 | return PyInt_FromLong(x); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | static int |
| 91 | b_setitem(ap, i, v) |
| 92 | arrayobject *ap; |
| 93 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 94 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 95 | { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 96 | short x; |
| 97 | /* PyArg_Parse's 'b' formatter is for an unsigned char, therefore |
| 98 | must use the next size up that is signed ('h') and manually do |
| 99 | the overflow checking */ |
| 100 | if (!PyArg_Parse(v, "h;array item must be integer", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 101 | return -1; |
Guido van Rossum | 9f754e0 | 2000-07-01 00:38:19 +0000 | [diff] [blame^] | 102 | else if (x < -128) { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 103 | PyErr_SetString(PyExc_OverflowError, |
| 104 | "signed char is less than minimum"); |
| 105 | return -1; |
| 106 | } |
Guido van Rossum | 9f754e0 | 2000-07-01 00:38:19 +0000 | [diff] [blame^] | 107 | else if (x > 127) { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 108 | PyErr_SetString(PyExc_OverflowError, |
| 109 | "signed char is greater than maximum"); |
| 110 | return -1; |
| 111 | } |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 112 | if (i >= 0) |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 113 | ((char *)ap->ob_item)[i] = (char)x; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 114 | return 0; |
| 115 | } |
| 116 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 117 | static PyObject * |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 118 | BB_getitem(ap, i) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 119 | arrayobject *ap; |
| 120 | int i; |
| 121 | { |
| 122 | long x = ((unsigned char *)ap->ob_item)[i]; |
| 123 | return PyInt_FromLong(x); |
| 124 | } |
| 125 | |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 126 | static int |
| 127 | BB_setitem(ap, i, v) |
| 128 | arrayobject *ap; |
| 129 | int i; |
| 130 | PyObject *v; |
| 131 | { |
| 132 | unsigned char x; |
| 133 | /* 'B' == unsigned char, maps to PyArg_Parse's 'b' formatter */ |
| 134 | if (!PyArg_Parse(v, "b;array item must be integer", &x)) |
| 135 | return -1; |
| 136 | if (i >= 0) |
| 137 | ((char *)ap->ob_item)[i] = x; |
| 138 | return 0; |
| 139 | } |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 140 | |
| 141 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 142 | h_getitem(ap, i) |
| 143 | arrayobject *ap; |
| 144 | int i; |
| 145 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 146 | return PyInt_FromLong((long) ((short *)ap->ob_item)[i]); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | static int |
| 150 | h_setitem(ap, i, v) |
| 151 | arrayobject *ap; |
| 152 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 153 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 154 | { |
| 155 | short x; |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 156 | /* 'h' == signed short, maps to PyArg_Parse's 'h' formatter */ |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 157 | if (!PyArg_Parse(v, "h;array item must be integer", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 158 | return -1; |
| 159 | if (i >= 0) |
| 160 | ((short *)ap->ob_item)[i] = x; |
| 161 | return 0; |
| 162 | } |
| 163 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 164 | static PyObject * |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 165 | HH_getitem(ap, i) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 166 | arrayobject *ap; |
| 167 | int i; |
| 168 | { |
| 169 | return PyInt_FromLong((long) ((unsigned short *)ap->ob_item)[i]); |
| 170 | } |
| 171 | |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 172 | static int |
| 173 | HH_setitem(ap, i, v) |
| 174 | arrayobject *ap; |
| 175 | int i; |
| 176 | PyObject *v; |
| 177 | { |
| 178 | int x; |
| 179 | /* PyArg_Parse's 'h' formatter is for a signed short, therefore |
| 180 | must use the next size up and manually do the overflow checking */ |
| 181 | if (!PyArg_Parse(v, "i;array item must be integer", &x)) |
| 182 | return -1; |
| 183 | else if (x < 0) { |
| 184 | PyErr_SetString(PyExc_OverflowError, |
| 185 | "unsigned short is less than minimum"); |
| 186 | return -1; |
| 187 | } |
| 188 | else if (x > USHRT_MAX) { |
| 189 | PyErr_SetString(PyExc_OverflowError, |
| 190 | "unsigned short is greater than maximum"); |
| 191 | return -1; |
| 192 | } |
| 193 | if (i >= 0) |
| 194 | ((short *)ap->ob_item)[i] = (short)x; |
| 195 | return 0; |
| 196 | } |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 197 | |
| 198 | static PyObject * |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 199 | i_getitem(ap, i) |
| 200 | arrayobject *ap; |
| 201 | int i; |
| 202 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 203 | return PyInt_FromLong((long) ((int *)ap->ob_item)[i]); |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | static int |
| 207 | i_setitem(ap, i, v) |
| 208 | arrayobject *ap; |
| 209 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 210 | PyObject *v; |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 211 | { |
| 212 | int x; |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 213 | /* 'i' == signed int, maps to PyArg_Parse's 'i' formatter */ |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 214 | if (!PyArg_Parse(v, "i;array item must be integer", &x)) |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 215 | return -1; |
| 216 | if (i >= 0) |
| 217 | ((int *)ap->ob_item)[i] = x; |
| 218 | return 0; |
| 219 | } |
| 220 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 221 | static PyObject * |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 222 | II_getitem(ap, i) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 223 | arrayobject *ap; |
| 224 | int i; |
| 225 | { |
| 226 | return PyLong_FromUnsignedLong( |
| 227 | (unsigned long) ((unsigned int *)ap->ob_item)[i]); |
| 228 | } |
| 229 | |
| 230 | static int |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 231 | II_setitem(ap, i, v) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 232 | arrayobject *ap; |
| 233 | int i; |
| 234 | PyObject *v; |
| 235 | { |
| 236 | unsigned long x; |
| 237 | if (PyLong_Check(v)) { |
| 238 | x = PyLong_AsUnsignedLong(v); |
| 239 | if (x == (unsigned long) -1 && PyErr_Occurred()) |
| 240 | return -1; |
| 241 | } |
| 242 | else { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 243 | long y; |
| 244 | if (!PyArg_Parse(v, "l;array item must be integer", &y)) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 245 | return -1; |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 246 | if (y < 0) { |
| 247 | PyErr_SetString(PyExc_OverflowError, |
| 248 | "unsigned int is less than minimum"); |
| 249 | return -1; |
| 250 | } |
| 251 | x = (unsigned long)y; |
| 252 | |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 253 | } |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 254 | if (x > UINT_MAX) { |
| 255 | PyErr_SetString(PyExc_OverflowError, |
| 256 | "unsigned int is greater than maximum"); |
| 257 | return -1; |
| 258 | } |
| 259 | |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 260 | if (i >= 0) |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 261 | ((unsigned int *)ap->ob_item)[i] = (unsigned int)x; |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 262 | return 0; |
| 263 | } |
| 264 | |
| 265 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 266 | l_getitem(ap, i) |
| 267 | arrayobject *ap; |
| 268 | int i; |
| 269 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 270 | return PyInt_FromLong(((long *)ap->ob_item)[i]); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | static int |
| 274 | l_setitem(ap, i, v) |
| 275 | arrayobject *ap; |
| 276 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 277 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 278 | { |
| 279 | long x; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 280 | if (!PyArg_Parse(v, "l;array item must be integer", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 281 | return -1; |
| 282 | if (i >= 0) |
| 283 | ((long *)ap->ob_item)[i] = x; |
| 284 | return 0; |
| 285 | } |
| 286 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 287 | static PyObject * |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 288 | LL_getitem(ap, i) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 289 | arrayobject *ap; |
| 290 | int i; |
| 291 | { |
| 292 | return PyLong_FromUnsignedLong(((unsigned long *)ap->ob_item)[i]); |
| 293 | } |
| 294 | |
| 295 | static int |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 296 | LL_setitem(ap, i, v) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 297 | arrayobject *ap; |
| 298 | int i; |
| 299 | PyObject *v; |
| 300 | { |
| 301 | unsigned long x; |
| 302 | if (PyLong_Check(v)) { |
| 303 | x = PyLong_AsUnsignedLong(v); |
| 304 | if (x == (unsigned long) -1 && PyErr_Occurred()) |
| 305 | return -1; |
| 306 | } |
| 307 | else { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 308 | long y; |
| 309 | if (!PyArg_Parse(v, "l;array item must be integer", &y)) |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 310 | return -1; |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 311 | if (y < 0) { |
| 312 | PyErr_SetString(PyExc_OverflowError, |
| 313 | "unsigned long is less than minimum"); |
| 314 | return -1; |
| 315 | } |
| 316 | x = (unsigned long)y; |
| 317 | |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 318 | } |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 319 | if (x > ULONG_MAX) { |
| 320 | PyErr_SetString(PyExc_OverflowError, |
| 321 | "unsigned long is greater than maximum"); |
| 322 | return -1; |
| 323 | } |
| 324 | |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 325 | if (i >= 0) |
| 326 | ((unsigned long *)ap->ob_item)[i] = x; |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 331 | f_getitem(ap, i) |
| 332 | arrayobject *ap; |
| 333 | int i; |
| 334 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 335 | return PyFloat_FromDouble((double) ((float *)ap->ob_item)[i]); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | static int |
| 339 | f_setitem(ap, i, v) |
| 340 | arrayobject *ap; |
| 341 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 342 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 343 | { |
| 344 | float x; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 345 | if (!PyArg_Parse(v, "f;array item must be float", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 346 | return -1; |
| 347 | if (i >= 0) |
| 348 | ((float *)ap->ob_item)[i] = x; |
| 349 | return 0; |
| 350 | } |
| 351 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 352 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 353 | d_getitem(ap, i) |
| 354 | arrayobject *ap; |
| 355 | int i; |
| 356 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 357 | return PyFloat_FromDouble(((double *)ap->ob_item)[i]); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | static int |
| 361 | d_setitem(ap, i, v) |
| 362 | arrayobject *ap; |
| 363 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 364 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 365 | { |
| 366 | double x; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 367 | if (!PyArg_Parse(v, "d;array item must be float", &x)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 368 | return -1; |
| 369 | if (i >= 0) |
| 370 | ((double *)ap->ob_item)[i] = x; |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | /* Description of types */ |
Guido van Rossum | 234f942 | 1993-06-17 12:35:49 +0000 | [diff] [blame] | 375 | static struct arraydescr descriptors[] = { |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 376 | {'c', sizeof(char), c_getitem, c_setitem}, |
| 377 | {'b', sizeof(char), b_getitem, b_setitem}, |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 378 | {'B', sizeof(char), BB_getitem, BB_setitem}, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 379 | {'h', sizeof(short), h_getitem, h_setitem}, |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 380 | {'H', sizeof(short), HH_getitem, HH_setitem}, |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 381 | {'i', sizeof(int), i_getitem, i_setitem}, |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 382 | {'I', sizeof(int), II_getitem, II_setitem}, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 383 | {'l', sizeof(long), l_getitem, l_setitem}, |
Guido van Rossum | 1a747f8 | 1997-05-16 16:21:38 +0000 | [diff] [blame] | 384 | {'L', sizeof(long), LL_getitem, LL_setitem}, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 385 | {'f', sizeof(float), f_getitem, f_setitem}, |
| 386 | {'d', sizeof(double), d_getitem, d_setitem}, |
| 387 | {'\0', 0, 0, 0} /* Sentinel */ |
| 388 | }; |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 389 | /* If we ever allow items larger than double, we must change reverse()! */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 390 | |
| 391 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 392 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 393 | newarrayobject(size, descr) |
| 394 | int size; |
| 395 | struct arraydescr *descr; |
| 396 | { |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 397 | arrayobject *op; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 398 | size_t nbytes; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 399 | if (size < 0) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 400 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 401 | return NULL; |
| 402 | } |
| 403 | nbytes = size * descr->itemsize; |
| 404 | /* Check for overflow */ |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 405 | if (nbytes / descr->itemsize != (size_t)size) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 406 | return PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 407 | } |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 408 | op = PyObject_NewVar(arrayobject, &Arraytype, size); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 409 | if (op == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 410 | return PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 411 | } |
| 412 | if (size <= 0) { |
| 413 | op->ob_item = NULL; |
| 414 | } |
| 415 | else { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 416 | op->ob_item = PyMem_NEW(char, nbytes); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 417 | if (op->ob_item == NULL) { |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 418 | PyObject_Del(op); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 419 | return PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 420 | } |
| 421 | } |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 422 | op->ob_descr = descr; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 423 | return (PyObject *) op; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 424 | } |
| 425 | |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 426 | #if 0 |
Guido van Rossum | 62de97f | 1995-01-22 00:48:41 +0000 | [diff] [blame] | 427 | static int |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 428 | getarraysize(op) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 429 | PyObject *op; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 430 | { |
| 431 | if (!is_arrayobject(op)) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 432 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 433 | return -1; |
| 434 | } |
| 435 | return ((arrayobject *)op) -> ob_size; |
| 436 | } |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 437 | #endif |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 438 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 439 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 440 | getarrayitem(op, i) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 441 | PyObject *op; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 442 | int i; |
| 443 | { |
| 444 | register arrayobject *ap; |
| 445 | if (!is_arrayobject(op)) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 446 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 447 | return NULL; |
| 448 | } |
| 449 | ap = (arrayobject *)op; |
| 450 | if (i < 0 || i >= ap->ob_size) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 451 | PyErr_SetString(PyExc_IndexError, "array index out of range"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 452 | return NULL; |
| 453 | } |
| 454 | return (*ap->ob_descr->getitem)(ap, i); |
| 455 | } |
| 456 | |
| 457 | static int |
| 458 | ins1(self, where, v) |
| 459 | arrayobject *self; |
| 460 | int where; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 461 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 462 | { |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 463 | char *items; |
| 464 | if (v == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 465 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 466 | return -1; |
| 467 | } |
| 468 | if ((*self->ob_descr->setitem)(self, -1, v) < 0) |
| 469 | return -1; |
| 470 | items = self->ob_item; |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 471 | PyMem_RESIZE(items, char, |
| 472 | (self->ob_size+1) * self->ob_descr->itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 473 | if (items == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 474 | PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 475 | return -1; |
| 476 | } |
| 477 | if (where < 0) |
| 478 | where = 0; |
| 479 | if (where > self->ob_size) |
| 480 | where = self->ob_size; |
| 481 | memmove(items + (where+1)*self->ob_descr->itemsize, |
| 482 | items + where*self->ob_descr->itemsize, |
| 483 | (self->ob_size-where)*self->ob_descr->itemsize); |
| 484 | self->ob_item = items; |
| 485 | self->ob_size++; |
| 486 | return (*self->ob_descr->setitem)(self, where, v); |
| 487 | } |
| 488 | |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 489 | #if 0 |
Guido van Rossum | 62de97f | 1995-01-22 00:48:41 +0000 | [diff] [blame] | 490 | static int |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 491 | insarrayitem(op, where, newitem) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 492 | PyObject *op; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 493 | int where; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 494 | PyObject *newitem; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 495 | { |
| 496 | if (!is_arrayobject(op)) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 497 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 498 | return -1; |
| 499 | } |
| 500 | return ins1((arrayobject *)op, where, newitem); |
| 501 | } |
| 502 | |
Guido van Rossum | 62de97f | 1995-01-22 00:48:41 +0000 | [diff] [blame] | 503 | static int |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 504 | addarrayitem(op, newitem) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 505 | PyObject *op; |
| 506 | PyObject *newitem; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 507 | { |
| 508 | if (!is_arrayobject(op)) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 509 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 510 | return -1; |
| 511 | } |
| 512 | return ins1((arrayobject *)op, |
| 513 | (int) ((arrayobject *)op)->ob_size, newitem); |
| 514 | } |
Guido van Rossum | a376cc5 | 1996-12-05 23:43:35 +0000 | [diff] [blame] | 515 | #endif |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 516 | |
| 517 | /* Methods */ |
| 518 | |
| 519 | static void |
| 520 | array_dealloc(op) |
| 521 | arrayobject *op; |
| 522 | { |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 523 | if (op->ob_item != NULL) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 524 | PyMem_DEL(op->ob_item); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 525 | PyObject_Del(op); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | static int |
| 529 | array_compare(v, w) |
| 530 | arrayobject *v, *w; |
| 531 | { |
| 532 | int len = (v->ob_size < w->ob_size) ? v->ob_size : w->ob_size; |
| 533 | int i; |
| 534 | for (i = 0; i < len; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 535 | PyObject *ai, *bi; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 536 | int cmp; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 537 | ai = getarrayitem((PyObject *)v, i); |
| 538 | bi = getarrayitem((PyObject *)w, i); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 539 | if (ai && bi) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 540 | cmp = PyObject_Compare(ai, bi); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 541 | else |
| 542 | cmp = -1; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 543 | Py_XDECREF(ai); |
| 544 | Py_XDECREF(bi); |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 545 | if (cmp != 0) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 546 | return cmp; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 547 | } |
| 548 | return v->ob_size - w->ob_size; |
| 549 | } |
| 550 | |
| 551 | static int |
| 552 | array_length(a) |
| 553 | arrayobject *a; |
| 554 | { |
| 555 | return a->ob_size; |
| 556 | } |
| 557 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 558 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 559 | array_item(a, i) |
| 560 | arrayobject *a; |
| 561 | int i; |
| 562 | { |
| 563 | if (i < 0 || i >= a->ob_size) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 564 | PyErr_SetString(PyExc_IndexError, "array index out of range"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 565 | return NULL; |
| 566 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 567 | return getarrayitem((PyObject *)a, i); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 568 | } |
| 569 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 570 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 571 | array_slice(a, ilow, ihigh) |
| 572 | arrayobject *a; |
| 573 | int ilow, ihigh; |
| 574 | { |
| 575 | arrayobject *np; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 576 | if (ilow < 0) |
| 577 | ilow = 0; |
| 578 | else if (ilow > a->ob_size) |
| 579 | ilow = a->ob_size; |
| 580 | if (ihigh < 0) |
| 581 | ihigh = 0; |
| 582 | if (ihigh < ilow) |
| 583 | ihigh = ilow; |
| 584 | else if (ihigh > a->ob_size) |
| 585 | ihigh = a->ob_size; |
| 586 | np = (arrayobject *) newarrayobject(ihigh - ilow, a->ob_descr); |
| 587 | if (np == NULL) |
| 588 | return NULL; |
| 589 | memcpy(np->ob_item, a->ob_item + ilow * a->ob_descr->itemsize, |
| 590 | (ihigh-ilow) * a->ob_descr->itemsize); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 591 | return (PyObject *)np; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 592 | } |
| 593 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 594 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 595 | array_concat(a, bb) |
| 596 | arrayobject *a; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 597 | PyObject *bb; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 598 | { |
| 599 | int size; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 600 | arrayobject *np; |
| 601 | if (!is_arrayobject(bb)) { |
Fred Drake | 137507e | 2000-06-01 02:02:46 +0000 | [diff] [blame] | 602 | PyErr_Format(PyExc_TypeError, |
| 603 | "can only append array (not \"%.200s\") to array", |
| 604 | bb->ob_type->tp_name); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 605 | return NULL; |
| 606 | } |
| 607 | #define b ((arrayobject *)bb) |
| 608 | if (a->ob_descr != b->ob_descr) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 609 | PyErr_BadArgument(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 610 | return NULL; |
| 611 | } |
| 612 | size = a->ob_size + b->ob_size; |
| 613 | np = (arrayobject *) newarrayobject(size, a->ob_descr); |
| 614 | if (np == NULL) { |
| 615 | return NULL; |
| 616 | } |
| 617 | memcpy(np->ob_item, a->ob_item, a->ob_size*a->ob_descr->itemsize); |
| 618 | memcpy(np->ob_item + a->ob_size*a->ob_descr->itemsize, |
Guido van Rossum | 32be3a7 | 1993-11-05 10:16:27 +0000 | [diff] [blame] | 619 | b->ob_item, b->ob_size*b->ob_descr->itemsize); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 620 | return (PyObject *)np; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 621 | #undef b |
| 622 | } |
| 623 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 624 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 625 | array_repeat(a, n) |
| 626 | arrayobject *a; |
| 627 | int n; |
| 628 | { |
Guido van Rossum | 3bbc62e | 1995-01-02 19:30:30 +0000 | [diff] [blame] | 629 | int i; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 630 | int size; |
| 631 | arrayobject *np; |
| 632 | char *p; |
| 633 | int nbytes; |
| 634 | if (n < 0) |
| 635 | n = 0; |
| 636 | size = a->ob_size * n; |
| 637 | np = (arrayobject *) newarrayobject(size, a->ob_descr); |
| 638 | if (np == NULL) |
| 639 | return NULL; |
| 640 | p = np->ob_item; |
| 641 | nbytes = a->ob_size * a->ob_descr->itemsize; |
| 642 | for (i = 0; i < n; i++) { |
| 643 | memcpy(p, a->ob_item, nbytes); |
| 644 | p += nbytes; |
| 645 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 646 | return (PyObject *) np; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | static int |
| 650 | array_ass_slice(a, ilow, ihigh, v) |
| 651 | arrayobject *a; |
| 652 | int ilow, ihigh; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 653 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 654 | { |
| 655 | char *item; |
| 656 | int n; /* Size of replacement array */ |
| 657 | int d; /* Change in size */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 658 | #define b ((arrayobject *)v) |
| 659 | if (v == NULL) |
| 660 | n = 0; |
| 661 | else if (is_arrayobject(v)) { |
| 662 | n = b->ob_size; |
| 663 | if (a == b) { |
| 664 | /* Special case "a[i:j] = a" -- copy b first */ |
| 665 | int ret; |
| 666 | v = array_slice(b, 0, n); |
| 667 | ret = array_ass_slice(a, ilow, ihigh, v); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 668 | Py_DECREF(v); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 669 | return ret; |
| 670 | } |
| 671 | if (b->ob_descr != a->ob_descr) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 672 | PyErr_BadArgument(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 673 | return -1; |
| 674 | } |
| 675 | } |
| 676 | else { |
Fred Drake | 137507e | 2000-06-01 02:02:46 +0000 | [diff] [blame] | 677 | PyErr_Format(PyExc_TypeError, |
| 678 | "can only assign array (not \"%.200s\") to array slice", |
| 679 | v->ob_type->tp_name); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 680 | return -1; |
| 681 | } |
| 682 | if (ilow < 0) |
| 683 | ilow = 0; |
| 684 | else if (ilow > a->ob_size) |
| 685 | ilow = a->ob_size; |
| 686 | if (ihigh < 0) |
| 687 | ihigh = 0; |
| 688 | if (ihigh < ilow) |
| 689 | ihigh = ilow; |
| 690 | else if (ihigh > a->ob_size) |
| 691 | ihigh = a->ob_size; |
| 692 | item = a->ob_item; |
| 693 | d = n - (ihigh-ilow); |
| 694 | if (d < 0) { /* Delete -d items */ |
| 695 | memmove(item + (ihigh+d)*a->ob_descr->itemsize, |
| 696 | item + ihigh*a->ob_descr->itemsize, |
| 697 | (a->ob_size-ihigh)*a->ob_descr->itemsize); |
| 698 | a->ob_size += d; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 699 | PyMem_RESIZE(item, char, a->ob_size*a->ob_descr->itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 700 | /* Can't fail */ |
| 701 | a->ob_item = item; |
| 702 | } |
| 703 | else if (d > 0) { /* Insert d items */ |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 704 | PyMem_RESIZE(item, char, |
| 705 | (a->ob_size + d)*a->ob_descr->itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 706 | if (item == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 707 | PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 708 | return -1; |
| 709 | } |
| 710 | memmove(item + (ihigh+d)*a->ob_descr->itemsize, |
| 711 | item + ihigh*a->ob_descr->itemsize, |
| 712 | (a->ob_size-ihigh)*a->ob_descr->itemsize); |
| 713 | a->ob_item = item; |
| 714 | a->ob_size += d; |
| 715 | } |
| 716 | if (n > 0) |
| 717 | memcpy(item + ilow*a->ob_descr->itemsize, b->ob_item, |
| 718 | n*b->ob_descr->itemsize); |
| 719 | return 0; |
| 720 | #undef b |
| 721 | } |
| 722 | |
| 723 | static int |
| 724 | array_ass_item(a, i, v) |
| 725 | arrayobject *a; |
| 726 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 727 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 728 | { |
| 729 | if (i < 0 || i >= a->ob_size) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 730 | PyErr_SetString(PyExc_IndexError, |
| 731 | "array assignment index out of range"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 732 | return -1; |
| 733 | } |
| 734 | if (v == NULL) |
| 735 | return array_ass_slice(a, i, i+1, v); |
| 736 | return (*a->ob_descr->setitem)(a, i, v); |
| 737 | } |
| 738 | |
| 739 | static int |
| 740 | setarrayitem(a, i, v) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 741 | PyObject *a; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 742 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 743 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 744 | { |
| 745 | if (!is_arrayobject(a)) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 746 | PyErr_BadInternalCall(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 747 | return -1; |
| 748 | } |
| 749 | return array_ass_item((arrayobject *)a, i, v); |
| 750 | } |
| 751 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 752 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 753 | ins(self, where, v) |
| 754 | arrayobject *self; |
| 755 | int where; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 756 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 757 | { |
| 758 | if (ins1(self, where, v) != 0) |
| 759 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 760 | Py_INCREF(Py_None); |
| 761 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 762 | } |
| 763 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 764 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 765 | array_insert(self, args) |
| 766 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 767 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 768 | { |
| 769 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 770 | PyObject *v; |
| 771 | if (!PyArg_Parse(args, "(iO)", &i, &v)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 772 | return NULL; |
| 773 | return ins(self, i, v); |
| 774 | } |
| 775 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 776 | static char insert_doc [] = |
| 777 | "insert (i,x)\n\ |
| 778 | \n\ |
| 779 | Insert a new item x into the array before position i."; |
| 780 | |
| 781 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 782 | static PyObject * |
Guido van Rossum | de4a4ca | 1997-08-12 14:55:56 +0000 | [diff] [blame] | 783 | array_buffer_info(self, args) |
| 784 | arrayobject *self; |
| 785 | PyObject *args; |
| 786 | { |
Fred Drake | 541dc3b | 2000-06-28 17:49:30 +0000 | [diff] [blame] | 787 | PyObject* retval = PyTuple_New(2); |
| 788 | if (!retval) return NULL; |
| 789 | |
| 790 | PyTuple_SET_ITEM(retval, 0, PyLong_FromVoidPtr(self->ob_item)); |
| 791 | PyTuple_SET_ITEM(retval, 1, PyInt_FromLong((long)(self->ob_size))); |
| 792 | |
| 793 | return retval; |
Guido van Rossum | de4a4ca | 1997-08-12 14:55:56 +0000 | [diff] [blame] | 794 | } |
| 795 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 796 | static char buffer_info_doc [] = |
| 797 | "buffer_info -> (address, length)\n\ |
| 798 | \n\ |
| 799 | Return a tuple (address, length) giving the current memory address and\n\ |
| 800 | the length in bytes of the buffer used to hold array's contents."; |
| 801 | |
| 802 | |
Guido van Rossum | de4a4ca | 1997-08-12 14:55:56 +0000 | [diff] [blame] | 803 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 804 | array_append(self, args) |
| 805 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 806 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 807 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 808 | PyObject *v; |
| 809 | if (!PyArg_Parse(args, "O", &v)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 810 | return NULL; |
| 811 | return ins(self, (int) self->ob_size, v); |
| 812 | } |
| 813 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 814 | static char append_doc [] = |
| 815 | "append(x)\n\ |
| 816 | \n\ |
| 817 | Append new value x to the end of the array."; |
| 818 | |
| 819 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 820 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 821 | array_byteswap(self, args) |
| 822 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 823 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 824 | { |
| 825 | char *p; |
| 826 | int i; |
Fred Drake | bf27298 | 1999-12-03 17:15:30 +0000 | [diff] [blame] | 827 | |
| 828 | if (!PyArg_ParseTuple(args, ":byteswap")) |
| 829 | return NULL; |
| 830 | |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 831 | switch (self->ob_descr->itemsize) { |
| 832 | case 1: |
| 833 | break; |
| 834 | case 2: |
| 835 | for (p = self->ob_item, i = self->ob_size; --i >= 0; p += 2) { |
| 836 | char p0 = p[0]; |
| 837 | p[0] = p[1]; |
| 838 | p[1] = p0; |
| 839 | } |
| 840 | break; |
| 841 | case 4: |
| 842 | for (p = self->ob_item, i = self->ob_size; --i >= 0; p += 4) { |
| 843 | char p0 = p[0]; |
| 844 | char p1 = p[1]; |
| 845 | p[0] = p[3]; |
| 846 | p[1] = p[2]; |
| 847 | p[2] = p1; |
| 848 | p[3] = p0; |
| 849 | } |
| 850 | break; |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 851 | case 8: |
| 852 | for (p = self->ob_item, i = self->ob_size; --i >= 0; p += 8) { |
| 853 | char p0 = p[0]; |
| 854 | char p1 = p[1]; |
| 855 | char p2 = p[2]; |
| 856 | char p3 = p[3]; |
| 857 | p[0] = p[7]; |
| 858 | p[1] = p[6]; |
| 859 | p[2] = p[5]; |
| 860 | p[3] = p[4]; |
| 861 | p[4] = p3; |
| 862 | p[5] = p2; |
| 863 | p[6] = p1; |
| 864 | p[7] = p0; |
| 865 | } |
| 866 | break; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 867 | default: |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 868 | PyErr_SetString(PyExc_RuntimeError, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 869 | "don't know how to byteswap this array type"); |
| 870 | return NULL; |
| 871 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 872 | Py_INCREF(Py_None); |
| 873 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 874 | } |
| 875 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 876 | static char byteswap_doc [] = |
Fred Drake | bf27298 | 1999-12-03 17:15:30 +0000 | [diff] [blame] | 877 | "byteswap()\n\ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 878 | \n\ |
Fred Drake | bf27298 | 1999-12-03 17:15:30 +0000 | [diff] [blame] | 879 | Byteswap all items of the array. If the items in the array are not 1, 2,\n\ |
| 880 | 4, or 8 bytes in size, RuntimeError is raised."; |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 881 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 882 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 883 | array_reverse(self, args) |
| 884 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 885 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 886 | { |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 887 | register int itemsize = self->ob_descr->itemsize; |
| 888 | register char *p, *q; |
| 889 | char tmp[sizeof(double)]; /* Assume that's the max item size */ |
| 890 | |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 891 | if (args != NULL) { |
Fred Drake | 137507e | 2000-06-01 02:02:46 +0000 | [diff] [blame] | 892 | PyErr_SetString(PyExc_TypeError, |
| 893 | "<array>.reverse requires exactly 0 arguments"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 894 | return NULL; |
| 895 | } |
| 896 | |
| 897 | if (self->ob_size > 1) { |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 898 | for (p = self->ob_item, |
| 899 | q = self->ob_item + (self->ob_size - 1)*itemsize; |
| 900 | p < q; |
| 901 | p += itemsize, q -= itemsize) { |
| 902 | memmove(tmp, p, itemsize); |
| 903 | memmove(p, q, itemsize); |
| 904 | memmove(q, tmp, itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 905 | } |
| 906 | } |
| 907 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 908 | Py_INCREF(Py_None); |
| 909 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 910 | } |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 911 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 912 | static char reverse_doc [] = |
| 913 | "reverse()\n\ |
| 914 | \n\ |
| 915 | Reverse the order of the items in the array."; |
| 916 | |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 917 | /* The following routines were adapted from listobject.c but not converted. |
| 918 | To make them work you will have to work! */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 919 | |
| 920 | #if 0 |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 921 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 922 | array_index(self, args) |
| 923 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 924 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 925 | { |
| 926 | int i; |
| 927 | |
| 928 | if (args == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 929 | PyErr_BadArgument(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 930 | return NULL; |
| 931 | } |
| 932 | for (i = 0; i < self->ob_size; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 933 | if (PyObject_Compare(self->ob_item[i], args) == 0) |
| 934 | return PyInt_FromLong((long)i); |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 935 | /* XXX PyErr_Occurred */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 936 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 937 | PyErr_SetString(PyExc_ValueError, "array.index(x): x not in array"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 938 | return NULL; |
| 939 | } |
| 940 | #endif |
| 941 | |
| 942 | #if 0 |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 943 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 944 | array_count(self, args) |
| 945 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 946 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 947 | { |
| 948 | int count = 0; |
| 949 | int i; |
| 950 | |
| 951 | if (args == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 952 | PyErr_BadArgument(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 953 | return NULL; |
| 954 | } |
| 955 | for (i = 0; i < self->ob_size; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 956 | if (PyObject_Compare(self->ob_item[i], args) == 0) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 957 | count++; |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 958 | /* XXX PyErr_Occurred */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 959 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 960 | return PyInt_FromLong((long)count); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 961 | } |
| 962 | #endif |
| 963 | |
| 964 | #if 0 |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 965 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 966 | array_remove(self, args) |
| 967 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 968 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 969 | { |
| 970 | int i; |
| 971 | |
| 972 | if (args == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 973 | PyErr_BadArgument(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 974 | return NULL; |
| 975 | } |
| 976 | for (i = 0; i < self->ob_size; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 977 | if (PyObject_Compare(self->ob_item[i], args) == 0) { |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 978 | if (array_ass_slice(self, i, i+1, |
| 979 | (PyObject *)NULL) != 0) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 980 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 981 | Py_INCREF(Py_None); |
| 982 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 983 | } |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 984 | /* XXX PyErr_Occurred */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 985 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 986 | PyErr_SetString(PyExc_ValueError, "array.remove(x): x not in array"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 987 | return NULL; |
| 988 | } |
| 989 | #endif |
| 990 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 991 | static PyObject * |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 992 | array_fromfile(self, args) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 993 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 994 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 995 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 996 | PyObject *f; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 997 | int n; |
| 998 | FILE *fp; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 999 | if (!PyArg_Parse(args, "(Oi)", &f, &n)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1000 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1001 | fp = PyFile_AsFile(f); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1002 | if (fp == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1003 | PyErr_SetString(PyExc_TypeError, "arg1 must be open file"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1004 | return NULL; |
| 1005 | } |
| 1006 | if (n > 0) { |
| 1007 | char *item = self->ob_item; |
| 1008 | int itemsize = self->ob_descr->itemsize; |
Guido van Rossum | 7d0ae5e | 2000-06-28 21:27:21 +0000 | [diff] [blame] | 1009 | size_t nread; |
Guido van Rossum | 3791b0d | 1999-02-23 18:05:22 +0000 | [diff] [blame] | 1010 | int newlength; |
| 1011 | size_t newbytes; |
| 1012 | /* Be careful here about overflow */ |
| 1013 | if ((newlength = self->ob_size + n) <= 0 || |
Guido van Rossum | 481ac88 | 1999-03-19 21:50:11 +0000 | [diff] [blame] | 1014 | (newbytes = newlength * itemsize) / itemsize != |
| 1015 | (size_t)newlength) |
Guido van Rossum | 3791b0d | 1999-02-23 18:05:22 +0000 | [diff] [blame] | 1016 | goto nomem; |
| 1017 | PyMem_RESIZE(item, char, newbytes); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1018 | if (item == NULL) { |
Guido van Rossum | 3791b0d | 1999-02-23 18:05:22 +0000 | [diff] [blame] | 1019 | nomem: |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1020 | PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1021 | return NULL; |
| 1022 | } |
| 1023 | self->ob_item = item; |
| 1024 | self->ob_size += n; |
| 1025 | nread = fread(item + (self->ob_size - n) * itemsize, |
| 1026 | itemsize, n, fp); |
Guido van Rossum | 7d0ae5e | 2000-06-28 21:27:21 +0000 | [diff] [blame] | 1027 | if (nread < (size_t)n) { |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1028 | self->ob_size -= (n - nread); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1029 | PyMem_RESIZE(item, char, self->ob_size*itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1030 | self->ob_item = item; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1031 | PyErr_SetString(PyExc_EOFError, |
| 1032 | "not enough items in file"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1033 | return NULL; |
| 1034 | } |
| 1035 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1036 | Py_INCREF(Py_None); |
| 1037 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1040 | static char fromfile_doc [] = |
| 1041 | "fromfile(f, n)\n\ |
| 1042 | \n\ |
| 1043 | Read n objects from the file object f and append them to the end of the\n\ |
| 1044 | array. Also called as read."; |
| 1045 | |
| 1046 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1047 | static PyObject * |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 1048 | array_tofile(self, args) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1049 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1050 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1051 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1052 | PyObject *f; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1053 | FILE *fp; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1054 | if (!PyArg_Parse(args, "O", &f)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1055 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1056 | fp = PyFile_AsFile(f); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1057 | if (fp == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1058 | PyErr_SetString(PyExc_TypeError, "arg must be open file"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1059 | return NULL; |
| 1060 | } |
| 1061 | if (self->ob_size > 0) { |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 1062 | if ((int)fwrite(self->ob_item, self->ob_descr->itemsize, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1063 | self->ob_size, fp) != self->ob_size) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1064 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1065 | clearerr(fp); |
| 1066 | return NULL; |
| 1067 | } |
| 1068 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1069 | Py_INCREF(Py_None); |
| 1070 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1071 | } |
| 1072 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1073 | static char tofile_doc [] = |
| 1074 | "tofile(f)\n\ |
| 1075 | \n\ |
| 1076 | Write all items (as machine values) to the file object f. Also called as\n\ |
| 1077 | write."; |
| 1078 | |
| 1079 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1080 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1081 | array_fromlist(self, args) |
| 1082 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1083 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1084 | { |
| 1085 | int n; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1086 | PyObject *list; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1087 | int itemsize = self->ob_descr->itemsize; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1088 | if (!PyArg_Parse(args, "O", &list)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1089 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1090 | if (!PyList_Check(list)) { |
| 1091 | PyErr_SetString(PyExc_TypeError, "arg must be list"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1092 | return NULL; |
| 1093 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1094 | n = PyList_Size(list); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1095 | if (n > 0) { |
| 1096 | char *item = self->ob_item; |
| 1097 | int i; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1098 | PyMem_RESIZE(item, char, (self->ob_size + n) * itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1099 | if (item == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1100 | PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1101 | return NULL; |
| 1102 | } |
| 1103 | self->ob_item = item; |
| 1104 | self->ob_size += n; |
| 1105 | for (i = 0; i < n; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1106 | PyObject *v = PyList_GetItem(list, i); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1107 | if ((*self->ob_descr->setitem)(self, |
| 1108 | self->ob_size - n + i, v) != 0) { |
| 1109 | self->ob_size -= n; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1110 | PyMem_RESIZE(item, char, |
| 1111 | self->ob_size * itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1112 | self->ob_item = item; |
| 1113 | return NULL; |
| 1114 | } |
| 1115 | } |
| 1116 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1117 | Py_INCREF(Py_None); |
| 1118 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1119 | } |
| 1120 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1121 | static char fromlist_doc [] = |
| 1122 | "fromlist(list)\n\ |
| 1123 | \n\ |
| 1124 | Append items to array from list."; |
| 1125 | |
| 1126 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1127 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1128 | array_tolist(self, args) |
| 1129 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1130 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1131 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1132 | PyObject *list = PyList_New(self->ob_size); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1133 | int i; |
| 1134 | if (list == NULL) |
| 1135 | return NULL; |
| 1136 | for (i = 0; i < self->ob_size; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1137 | PyObject *v = getarrayitem((PyObject *)self, i); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1138 | if (v == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1139 | Py_DECREF(list); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1140 | return NULL; |
| 1141 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1142 | PyList_SetItem(list, i, v); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1143 | } |
| 1144 | return list; |
| 1145 | } |
| 1146 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1147 | static char tolist_doc [] = |
Guido van Rossum | fc6aba5 | 1998-10-14 02:52:31 +0000 | [diff] [blame] | 1148 | "tolist() -> list\n\ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1149 | \n\ |
| 1150 | Convert array to an ordinary list with the same items."; |
| 1151 | |
| 1152 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1153 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1154 | array_fromstring(self, args) |
| 1155 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1156 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1157 | { |
| 1158 | char *str; |
| 1159 | int n; |
| 1160 | int itemsize = self->ob_descr->itemsize; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1161 | if (!PyArg_Parse(args, "s#", &str, &n)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1162 | return NULL; |
| 1163 | if (n % itemsize != 0) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1164 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1165 | "string length not a multiple of item size"); |
| 1166 | return NULL; |
| 1167 | } |
| 1168 | n = n / itemsize; |
| 1169 | if (n > 0) { |
| 1170 | char *item = self->ob_item; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1171 | PyMem_RESIZE(item, char, (self->ob_size + n) * itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1172 | if (item == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1173 | PyErr_NoMemory(); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1174 | return NULL; |
| 1175 | } |
| 1176 | self->ob_item = item; |
| 1177 | self->ob_size += n; |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1178 | memcpy(item + (self->ob_size - n) * itemsize, |
| 1179 | str, itemsize*n); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1180 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1181 | Py_INCREF(Py_None); |
| 1182 | return Py_None; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1183 | } |
| 1184 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1185 | static char fromstring_doc [] = |
| 1186 | "fromstring(string)\n\ |
| 1187 | \n\ |
| 1188 | Appends items from the string, interpreting it as an array of machine\n\ |
| 1189 | values,as if it had been read from a file using the fromfile() method)."; |
| 1190 | |
| 1191 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1192 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1193 | array_tostring(self, args) |
| 1194 | arrayobject *self; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1195 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1196 | { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1197 | if (!PyArg_Parse(args, "")) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1198 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1199 | return PyString_FromStringAndSize(self->ob_item, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1200 | self->ob_size * self->ob_descr->itemsize); |
| 1201 | } |
| 1202 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1203 | static char tostring_doc [] = |
| 1204 | "tostring() -> string\n\ |
| 1205 | \n\ |
| 1206 | Convert the array to an array of machine values and return the string\n\ |
| 1207 | representation."; |
| 1208 | |
| 1209 | PyMethodDef array_methods[] = { |
| 1210 | {"append", (PyCFunction)array_append, 0, append_doc}, |
| 1211 | {"buffer_info", (PyCFunction)array_buffer_info, 0, buffer_info_doc}, |
Fred Drake | bf27298 | 1999-12-03 17:15:30 +0000 | [diff] [blame] | 1212 | {"byteswap", (PyCFunction)array_byteswap, METH_VARARGS, |
| 1213 | byteswap_doc}, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1214 | /* {"count", (method)array_count},*/ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1215 | {"fromfile", (PyCFunction)array_fromfile, 0, fromfile_doc}, |
| 1216 | {"fromlist", (PyCFunction)array_fromlist, 0, fromlist_doc}, |
| 1217 | {"fromstring", (PyCFunction)array_fromstring, 0, fromstring_doc}, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1218 | /* {"index", (method)array_index},*/ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1219 | {"insert", (PyCFunction)array_insert, 0, insert_doc}, |
| 1220 | {"read", (PyCFunction)array_fromfile, 0, fromfile_doc}, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1221 | /* {"remove", (method)array_remove},*/ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1222 | {"reverse", (PyCFunction)array_reverse, 0, reverse_doc}, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1223 | /* {"sort", (method)array_sort},*/ |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1224 | {"tofile", (PyCFunction)array_tofile, 0, tofile_doc}, |
| 1225 | {"tolist", (PyCFunction)array_tolist, 0, tolist_doc}, |
| 1226 | {"tostring", (PyCFunction)array_tostring, 0, tostring_doc}, |
| 1227 | {"write", (PyCFunction)array_tofile, 0, tofile_doc}, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1228 | {NULL, NULL} /* sentinel */ |
| 1229 | }; |
| 1230 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1231 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1232 | array_getattr(a, name) |
| 1233 | arrayobject *a; |
| 1234 | char *name; |
| 1235 | { |
| 1236 | if (strcmp(name, "typecode") == 0) { |
| 1237 | char tc = a->ob_descr->typecode; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1238 | return PyString_FromStringAndSize(&tc, 1); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1239 | } |
| 1240 | if (strcmp(name, "itemsize") == 0) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1241 | return PyInt_FromLong((long)a->ob_descr->itemsize); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1242 | } |
Guido van Rossum | a3d78fb | 1993-11-10 09:23:53 +0000 | [diff] [blame] | 1243 | if (strcmp(name, "__members__") == 0) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1244 | PyObject *list = PyList_New(2); |
Guido van Rossum | a3d78fb | 1993-11-10 09:23:53 +0000 | [diff] [blame] | 1245 | if (list) { |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1246 | PyList_SetItem(list, 0, |
| 1247 | PyString_FromString("typecode")); |
| 1248 | PyList_SetItem(list, 1, |
| 1249 | PyString_FromString("itemsize")); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1250 | if (PyErr_Occurred()) { |
| 1251 | Py_DECREF(list); |
Guido van Rossum | a3d78fb | 1993-11-10 09:23:53 +0000 | [diff] [blame] | 1252 | list = NULL; |
| 1253 | } |
| 1254 | } |
| 1255 | return list; |
| 1256 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1257 | return Py_FindMethod(array_methods, (PyObject *)a, name); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1258 | } |
| 1259 | |
| 1260 | static int |
| 1261 | array_print(a, fp, flags) |
| 1262 | arrayobject *a; |
| 1263 | FILE *fp; |
| 1264 | int flags; |
| 1265 | { |
| 1266 | int ok = 0; |
| 1267 | int i, len; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1268 | PyObject *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1269 | len = a->ob_size; |
| 1270 | if (len == 0) { |
| 1271 | fprintf(fp, "array('%c')", a->ob_descr->typecode); |
| 1272 | return ok; |
| 1273 | } |
| 1274 | if (a->ob_descr->typecode == 'c') { |
| 1275 | fprintf(fp, "array('c', "); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1276 | v = array_tostring(a, (PyObject *)NULL); |
| 1277 | ok = PyObject_Print(v, fp, 0); |
| 1278 | Py_XDECREF(v); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1279 | fprintf(fp, ")"); |
| 1280 | return ok; |
| 1281 | } |
| 1282 | fprintf(fp, "array('%c', [", a->ob_descr->typecode); |
| 1283 | for (i = 0; i < len && ok == 0; i++) { |
| 1284 | if (i > 0) |
| 1285 | fprintf(fp, ", "); |
| 1286 | v = (a->ob_descr->getitem)(a, i); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1287 | ok = PyObject_Print(v, fp, 0); |
| 1288 | Py_XDECREF(v); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1289 | } |
| 1290 | fprintf(fp, "])"); |
| 1291 | return ok; |
| 1292 | } |
| 1293 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1294 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1295 | array_repr(a) |
| 1296 | arrayobject *a; |
| 1297 | { |
| 1298 | char buf[256]; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1299 | PyObject *s, *t, *comma, *v; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1300 | int i, len; |
| 1301 | len = a->ob_size; |
| 1302 | if (len == 0) { |
| 1303 | sprintf(buf, "array('%c')", a->ob_descr->typecode); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1304 | return PyString_FromString(buf); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1305 | } |
| 1306 | if (a->ob_descr->typecode == 'c') { |
| 1307 | sprintf(buf, "array('c', "); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1308 | s = PyString_FromString(buf); |
| 1309 | v = array_tostring(a, (PyObject *)NULL); |
| 1310 | t = PyObject_Repr(v); |
| 1311 | Py_XDECREF(v); |
| 1312 | PyString_ConcatAndDel(&s, t); |
| 1313 | PyString_ConcatAndDel(&s, PyString_FromString(")")); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1314 | return s; |
| 1315 | } |
| 1316 | sprintf(buf, "array('%c', [", a->ob_descr->typecode); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1317 | s = PyString_FromString(buf); |
| 1318 | comma = PyString_FromString(", "); |
| 1319 | for (i = 0; i < len && !PyErr_Occurred(); i++) { |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1320 | if (i > 0) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1321 | PyString_Concat(&s, comma); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1322 | v = (a->ob_descr->getitem)(a, i); |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1323 | t = PyObject_Repr(v); |
| 1324 | Py_XDECREF(v); |
| 1325 | PyString_ConcatAndDel(&s, t); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1326 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1327 | Py_XDECREF(comma); |
| 1328 | PyString_ConcatAndDel(&s, PyString_FromString("])")); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1329 | return s; |
| 1330 | } |
| 1331 | |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 1332 | static int |
| 1333 | array_buffer_getreadbuf(self, index, ptr) |
| 1334 | arrayobject *self; |
| 1335 | int index; |
| 1336 | const void **ptr; |
| 1337 | { |
| 1338 | if ( index != 0 ) { |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1339 | PyErr_SetString(PyExc_SystemError, |
| 1340 | "Accessing non-existent array segment"); |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 1341 | return -1; |
| 1342 | } |
| 1343 | *ptr = (void *)self->ob_item; |
| 1344 | return self->ob_size*self->ob_descr->itemsize; |
| 1345 | } |
| 1346 | |
| 1347 | static int |
| 1348 | array_buffer_getwritebuf(self, index, ptr) |
| 1349 | arrayobject *self; |
| 1350 | int index; |
| 1351 | const void **ptr; |
| 1352 | { |
| 1353 | if ( index != 0 ) { |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1354 | PyErr_SetString(PyExc_SystemError, |
| 1355 | "Accessing non-existent array segment"); |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 1356 | return -1; |
| 1357 | } |
| 1358 | *ptr = (void *)self->ob_item; |
| 1359 | return self->ob_size*self->ob_descr->itemsize; |
| 1360 | } |
| 1361 | |
| 1362 | static int |
| 1363 | array_buffer_getsegcount(self, lenp) |
| 1364 | arrayobject *self; |
| 1365 | int *lenp; |
| 1366 | { |
| 1367 | if ( lenp ) |
| 1368 | *lenp = self->ob_size*self->ob_descr->itemsize; |
| 1369 | return 1; |
| 1370 | } |
| 1371 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1372 | static PySequenceMethods array_as_sequence = { |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1373 | (inquiry)array_length, /*sq_length*/ |
| 1374 | (binaryfunc)array_concat, /*sq_concat*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1375 | (intargfunc)array_repeat, /*sq_repeat*/ |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1376 | (intargfunc)array_item, /*sq_item*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1377 | (intintargfunc)array_slice, /*sq_slice*/ |
| 1378 | (intobjargproc)array_ass_item, /*sq_ass_item*/ |
| 1379 | (intintobjargproc)array_ass_slice, /*sq_ass_slice*/ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1380 | }; |
| 1381 | |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 1382 | static PyBufferProcs array_as_buffer = { |
| 1383 | (getreadbufferproc)array_buffer_getreadbuf, |
| 1384 | (getwritebufferproc)array_buffer_getwritebuf, |
| 1385 | (getsegcountproc)array_buffer_getsegcount, |
| 1386 | }; |
| 1387 | |
| 1388 | |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1389 | |
| 1390 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1391 | static PyObject * |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1392 | a_array(self, args) |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1393 | PyObject *self; |
| 1394 | PyObject *args; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1395 | { |
| 1396 | char c; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1397 | PyObject *initial = NULL; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1398 | struct arraydescr *descr; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1399 | if (!PyArg_Parse(args, "c", &c)) { |
| 1400 | PyErr_Clear(); |
| 1401 | if (!PyArg_Parse(args, "(cO)", &c, &initial)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1402 | return NULL; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1403 | if (!PyList_Check(initial) && !PyString_Check(initial)) { |
| 1404 | PyErr_SetString(PyExc_TypeError, |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1405 | "array initializer must be list or string"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1406 | return NULL; |
| 1407 | } |
| 1408 | } |
| 1409 | for (descr = descriptors; descr->typecode != '\0'; descr++) { |
| 1410 | if (descr->typecode == c) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1411 | PyObject *a; |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1412 | int len; |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1413 | if (initial == NULL || !PyList_Check(initial)) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1414 | len = 0; |
| 1415 | else |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1416 | len = PyList_Size(initial); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1417 | a = newarrayobject(len, descr); |
| 1418 | if (a == NULL) |
| 1419 | return NULL; |
| 1420 | if (len > 0) { |
| 1421 | int i; |
| 1422 | for (i = 0; i < len; i++) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1423 | PyObject *v = |
| 1424 | PyList_GetItem(initial, i); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1425 | if (setarrayitem(a, i, v) != 0) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1426 | Py_DECREF(a); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1427 | return NULL; |
| 1428 | } |
| 1429 | } |
| 1430 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1431 | if (initial != NULL && PyString_Check(initial)) { |
| 1432 | PyObject *v = |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1433 | array_fromstring((arrayobject *)a, initial); |
| 1434 | if (v == NULL) { |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1435 | Py_DECREF(a); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1436 | return NULL; |
| 1437 | } |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1438 | Py_DECREF(v); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1439 | } |
| 1440 | return a; |
| 1441 | } |
| 1442 | } |
Roger E. Masse | 5817f8f | 1996-12-09 22:24:19 +0000 | [diff] [blame] | 1443 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 549ab71 | 1997-01-03 19:09:47 +0000 | [diff] [blame] | 1444 | "bad typecode (must be c, b, B, h, H, i, I, l, L, f or d)"); |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1445 | return NULL; |
| 1446 | } |
| 1447 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1448 | static char a_array_doc [] = |
| 1449 | "array(typecode [, initializer]) -> array\n\ |
| 1450 | \n\ |
| 1451 | Return a new array whose items are restricted by typecode, and\n\ |
| 1452 | initialized from the optional initializer value, which must be a list\n\ |
| 1453 | or a string."; |
| 1454 | |
Roger E. Masse | 2919eaa | 1996-12-09 20:10:36 +0000 | [diff] [blame] | 1455 | static PyMethodDef a_methods[] = { |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1456 | {"array", a_array, 0, a_array_doc}, |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1457 | {NULL, NULL} /* sentinel */ |
| 1458 | }; |
| 1459 | |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1460 | static char module_doc [] = |
| 1461 | "This module defines a new object type which can efficiently represent\n\ |
| 1462 | an array of basic values: characters, integers, floating point\n\ |
| 1463 | numbers. Arrays are sequence types and behave very much like lists,\n\ |
| 1464 | except that the type of objects stored in them is constrained. The\n\ |
| 1465 | type is specified at object creation time by using a type code, which\n\ |
| 1466 | is a single character. The following type codes are defined:\n\ |
| 1467 | \n\ |
| 1468 | Type code C Type Minimum size in bytes \n\ |
| 1469 | 'c' character 1 \n\ |
| 1470 | 'b' signed integer 1 \n\ |
| 1471 | 'B' unsigned integer 1 \n\ |
| 1472 | 'h' signed integer 2 \n\ |
| 1473 | 'H' unsigned integer 2 \n\ |
| 1474 | 'i' signed integer 2 \n\ |
| 1475 | 'I' unsigned integer 2 \n\ |
| 1476 | 'l' signed integer 4 \n\ |
| 1477 | 'L' unsigned integer 4 \n\ |
| 1478 | 'f' floating point 4 \n\ |
| 1479 | 'd' floating point 8 \n\ |
| 1480 | \n\ |
| 1481 | Functions:\n\ |
| 1482 | \n\ |
| 1483 | array(typecode [, initializer]) -- create a new array\n\ |
| 1484 | \n\ |
| 1485 | Special Objects:\n\ |
| 1486 | \n\ |
| 1487 | ArrayType -- type object for array objects\n\ |
| 1488 | "; |
| 1489 | |
| 1490 | static char arraytype_doc [] = |
| 1491 | "An array represents basic values and behave very much like lists, except\n\ |
| 1492 | the type of objects stored in them is constrained.\n\ |
| 1493 | \n\ |
| 1494 | Methods:\n\ |
| 1495 | \n\ |
| 1496 | append() -- append a new item to the end of the array\n\ |
| 1497 | buffer_info() -- return information giving the current memory info\n\ |
| 1498 | byteswap() -- byteswap all the items of the array\n\ |
| 1499 | fromfile() -- read items from a file object\n\ |
| 1500 | fromlist() -- append items from the list\n\ |
| 1501 | fromstring() -- append items from the string\n\ |
| 1502 | insert() -- insert a new item into the array at a provided position\n\ |
| 1503 | read() -- DEPRECATED, use fromfile()\n\ |
| 1504 | reverse() -- reverse the order of the items in the array\n\ |
| 1505 | tofile() -- write all items to a file object\n\ |
| 1506 | tolist() -- return the array converted to an ordinary list\n\ |
| 1507 | tostring() -- return the array converted to a string\n\ |
| 1508 | write() -- DEPRECATED, use tofile()\n\ |
| 1509 | \n\ |
| 1510 | Variables:\n\ |
| 1511 | \n\ |
| 1512 | typecode -- the typecode character used to create the array\n\ |
| 1513 | itemsize -- the length in bytes of one array item\n\ |
| 1514 | "; |
| 1515 | |
| 1516 | statichere PyTypeObject Arraytype = { |
Fred Drake | 0d40ba4 | 2000-02-04 20:33:49 +0000 | [diff] [blame] | 1517 | PyObject_HEAD_INIT(NULL) |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1518 | 0, |
| 1519 | "array", |
| 1520 | sizeof(arrayobject), |
| 1521 | 0, |
| 1522 | (destructor)array_dealloc, /*tp_dealloc*/ |
| 1523 | (printfunc)array_print, /*tp_print*/ |
| 1524 | (getattrfunc)array_getattr, /*tp_getattr*/ |
| 1525 | 0, /*tp_setattr*/ |
| 1526 | (cmpfunc)array_compare, /*tp_compare*/ |
| 1527 | (reprfunc)array_repr, /*tp_repr*/ |
| 1528 | 0, /*tp_as_number*/ |
| 1529 | &array_as_sequence, /*tp_as_sequence*/ |
| 1530 | 0, /*tp_as_mapping*/ |
| 1531 | 0, /*tp_hash*/ |
| 1532 | 0, /*tp_call*/ |
| 1533 | 0, /*tp_str*/ |
| 1534 | 0, /*tp_getattro*/ |
| 1535 | 0, /*tp_setattro*/ |
| 1536 | &array_as_buffer, /*tp_as_buffer*/ |
| 1537 | 0, /*tp_xxx4*/ |
| 1538 | arraytype_doc, /*tp_doc*/ |
| 1539 | }; |
| 1540 | |
Guido van Rossum | 3886bb6 | 1998-12-04 18:50:17 +0000 | [diff] [blame] | 1541 | DL_EXPORT(void) |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1542 | initarray() |
| 1543 | { |
Guido van Rossum | b6190d3 | 1997-05-22 14:56:36 +0000 | [diff] [blame] | 1544 | PyObject *m, *d; |
Fred Drake | 0d40ba4 | 2000-02-04 20:33:49 +0000 | [diff] [blame] | 1545 | |
| 1546 | Arraytype.ob_type = &PyType_Type; |
Guido van Rossum | b39b90d | 1998-10-13 14:27:22 +0000 | [diff] [blame] | 1547 | m = Py_InitModule3("array", a_methods, module_doc); |
Guido van Rossum | b6190d3 | 1997-05-22 14:56:36 +0000 | [diff] [blame] | 1548 | d = PyModule_GetDict(m); |
Guido van Rossum | a0deb64 | 1998-10-14 13:45:06 +0000 | [diff] [blame] | 1549 | PyDict_SetItemString(d, "ArrayType", (PyObject *)&Arraytype); |
| 1550 | /* No need to check the error here, the caller will do that */ |
Guido van Rossum | 778983b | 1993-02-19 15:55:02 +0000 | [diff] [blame] | 1551 | } |