/usr/lib/python3/dist-packages/numpy/f2py/src/fortranobject.c is in python3-numpy 1:1.12.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 | #define FORTRANOBJECT_C
#include "fortranobject.h"
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include <string.h>
/*
This file implements: FortranObject, array_from_pyobj, copy_ND_array
Author: Pearu Peterson <pearu@cens.ioc.ee>
$Revision: 1.52 $
$Date: 2005/07/11 07:44:20 $
*/
int
F2PyDict_SetItemString(PyObject *dict, char *name, PyObject *obj)
{
if (obj==NULL) {
fprintf(stderr, "Error loading %s\n", name);
if (PyErr_Occurred()) {
PyErr_Print();
PyErr_Clear();
}
return -1;
}
return PyDict_SetItemString(dict, name, obj);
}
/************************* FortranObject *******************************/
typedef PyObject *(*fortranfunc)(PyObject *,PyObject *,PyObject *,void *);
PyObject *
PyFortranObject_New(FortranDataDef* defs, f2py_void_func init) {
int i;
PyFortranObject *fp = NULL;
PyObject *v = NULL;
if (init!=NULL) /* Initialize F90 module objects */
(*(init))();
if ((fp = PyObject_New(PyFortranObject, &PyFortran_Type))==NULL) return NULL;
if ((fp->dict = PyDict_New())==NULL) return NULL;
fp->len = 0;
while (defs[fp->len].name != NULL) fp->len++;
if (fp->len == 0) goto fail;
fp->defs = defs;
for (i=0;i<fp->len;i++)
if (fp->defs[i].rank == -1) { /* Is Fortran routine */
v = PyFortranObject_NewAsAttr(&(fp->defs[i]));
if (v==NULL) return NULL;
PyDict_SetItemString(fp->dict,fp->defs[i].name,v);
} else
if ((fp->defs[i].data)!=NULL) { /* Is Fortran variable or array (not allocatable) */
if (fp->defs[i].type == NPY_STRING) {
int n = fp->defs[i].rank-1;
v = PyArray_New(&PyArray_Type, n, fp->defs[i].dims.d,
NPY_STRING, NULL, fp->defs[i].data, fp->defs[i].dims.d[n],
NPY_ARRAY_FARRAY, NULL);
}
else {
v = PyArray_New(&PyArray_Type, fp->defs[i].rank, fp->defs[i].dims.d,
fp->defs[i].type, NULL, fp->defs[i].data, 0, NPY_ARRAY_FARRAY,
NULL);
}
if (v==NULL) return NULL;
PyDict_SetItemString(fp->dict,fp->defs[i].name,v);
}
Py_XDECREF(v);
return (PyObject *)fp;
fail:
Py_XDECREF(v);
return NULL;
}
PyObject *
PyFortranObject_NewAsAttr(FortranDataDef* defs) { /* used for calling F90 module routines */
PyFortranObject *fp = NULL;
fp = PyObject_New(PyFortranObject, &PyFortran_Type);
if (fp == NULL) return NULL;
if ((fp->dict = PyDict_New())==NULL) return NULL;
fp->len = 1;
fp->defs = defs;
return (PyObject *)fp;
}
/* Fortran methods */
static void
fortran_dealloc(PyFortranObject *fp) {
Py_XDECREF(fp->dict);
PyMem_Del(fp);
}
#if PY_VERSION_HEX >= 0x03000000
#else
static PyMethodDef fortran_methods[] = {
{NULL, NULL} /* sentinel */
};
#endif
/* Returns number of bytes consumed from buf, or -1 on error. */
static Py_ssize_t
format_def(char *buf, Py_ssize_t size, FortranDataDef def)
{
char *p = buf;
int i, n;
n = PyOS_snprintf(p, size, "array(%" NPY_INTP_FMT, def.dims.d[0]);
if (n < 0 || n >= size) {
return -1;
}
p += n;
size -= n;
for (i = 1; i < def.rank; i++) {
n = PyOS_snprintf(p, size, ",%" NPY_INTP_FMT, def.dims.d[i]);
if (n < 0 || n >= size) {
return -1;
}
p += n;
size -= n;
}
if (size <= 0) {
return -1;
}
p[size] = ')';
p++;
size--;
if (def.data == NULL) {
static const char notalloc[] = ", not allocated";
if (size < sizeof(notalloc)) {
return -1;
}
memcpy(p, notalloc, sizeof(notalloc));
}
return p - buf;
}
static PyObject *
fortran_doc(FortranDataDef def)
{
char *buf, *p;
PyObject *s = NULL;
Py_ssize_t n, origsize, size = 100;
if (def.doc != NULL) {
size += strlen(def.doc);
}
origsize = size;
buf = p = (char *)PyMem_Malloc(size);
if (buf == NULL) {
return PyErr_NoMemory();
}
if (def.rank == -1) {
if (def.doc) {
n = strlen(def.doc);
if (n > size) {
goto fail;
}
memcpy(p, def.doc, n);
p += n;
size -= n;
}
else {
n = PyOS_snprintf(p, size, "%s - no docs available", def.name);
if (n < 0 || n >= size) {
goto fail;
}
p += n;
size -= n;
}
}
else {
PyArray_Descr *d = PyArray_DescrFromType(def.type);
n = PyOS_snprintf(p, size, "'%c'-", d->type);
Py_DECREF(d);
if (n < 0 || n >= size) {
goto fail;
}
p += n;
size -= n;
if (def.data == NULL) {
n = format_def(p, size, def) == -1;
if (n < 0) {
goto fail;
}
p += n;
size -= n;
}
else if (def.rank > 0) {
n = format_def(p, size, def);
if (n < 0) {
goto fail;
}
p += n;
size -= n;
}
else {
n = strlen("scalar");
if (size < n) {
goto fail;
}
memcpy(p, "scalar", n);
p += n;
size -= n;
}
}
if (size <= 1) {
goto fail;
}
*p++ = '\n';
size--;
/* p now points one beyond the last character of the string in buf */
#if PY_VERSION_HEX >= 0x03000000
s = PyUnicode_FromStringAndSize(buf, p - buf);
#else
s = PyString_FromStringAndSize(buf, p - buf);
#endif
PyMem_Free(buf);
return s;
fail:
fprintf(stderr, "fortranobject.c: fortran_doc: len(p)=%zd>%zd=size:"
" too long docstring required, increase size\n",
p - buf, origsize);
PyMem_Free(buf);
return NULL;
}
static FortranDataDef *save_def; /* save pointer of an allocatable array */
static void set_data(char *d,npy_intp *f) { /* callback from Fortran */
if (*f) /* In fortran f=allocated(d) */
save_def->data = d;
else
save_def->data = NULL;
/* printf("set_data: d=%p,f=%d\n",d,*f); */
}
static PyObject *
fortran_getattr(PyFortranObject *fp, char *name) {
int i,j,k,flag;
if (fp->dict != NULL) {
PyObject *v = PyDict_GetItemString(fp->dict, name);
if (v != NULL) {
Py_INCREF(v);
return v;
}
}
for (i=0,j=1;i<fp->len && (j=strcmp(name,fp->defs[i].name));i++);
if (j==0)
if (fp->defs[i].rank!=-1) { /* F90 allocatable array */
if (fp->defs[i].func==NULL) return NULL;
for(k=0;k<fp->defs[i].rank;++k)
fp->defs[i].dims.d[k]=-1;
save_def = &fp->defs[i];
(*(fp->defs[i].func))(&fp->defs[i].rank,fp->defs[i].dims.d,set_data,&flag);
if (flag==2)
k = fp->defs[i].rank + 1;
else
k = fp->defs[i].rank;
if (fp->defs[i].data !=NULL) { /* array is allocated */
PyObject *v = PyArray_New(&PyArray_Type, k, fp->defs[i].dims.d,
fp->defs[i].type, NULL, fp->defs[i].data, 0, NPY_ARRAY_FARRAY,
NULL);
if (v==NULL) return NULL;
/* Py_INCREF(v); */
return v;
} else { /* array is not allocated */
Py_RETURN_NONE;
}
}
if (strcmp(name,"__dict__")==0) {
Py_INCREF(fp->dict);
return fp->dict;
}
if (strcmp(name,"__doc__")==0) {
#if PY_VERSION_HEX >= 0x03000000
PyObject *s = PyUnicode_FromString(""), *s2, *s3;
for (i=0;i<fp->len;i++) {
s2 = fortran_doc(fp->defs[i]);
s3 = PyUnicode_Concat(s, s2);
Py_DECREF(s2);
Py_DECREF(s);
s = s3;
}
#else
PyObject *s = PyString_FromString("");
for (i=0;i<fp->len;i++)
PyString_ConcatAndDel(&s,fortran_doc(fp->defs[i]));
#endif
if (PyDict_SetItemString(fp->dict, name, s))
return NULL;
return s;
}
if ((strcmp(name,"_cpointer")==0) && (fp->len==1)) {
PyObject *cobj = F2PyCapsule_FromVoidPtr((void *)(fp->defs[0].data),NULL);
if (PyDict_SetItemString(fp->dict, name, cobj))
return NULL;
return cobj;
}
#if PY_VERSION_HEX >= 0x03000000
if (1) {
PyObject *str, *ret;
str = PyUnicode_FromString(name);
ret = PyObject_GenericGetAttr((PyObject *)fp, str);
Py_DECREF(str);
return ret;
}
#else
return Py_FindMethod(fortran_methods, (PyObject *)fp, name);
#endif
}
static int
fortran_setattr(PyFortranObject *fp, char *name, PyObject *v) {
int i,j,flag;
PyArrayObject *arr = NULL;
for (i=0,j=1;i<fp->len && (j=strcmp(name,fp->defs[i].name));i++);
if (j==0) {
if (fp->defs[i].rank==-1) {
PyErr_SetString(PyExc_AttributeError,"over-writing fortran routine");
return -1;
}
if (fp->defs[i].func!=NULL) { /* is allocatable array */
npy_intp dims[F2PY_MAX_DIMS];
int k;
save_def = &fp->defs[i];
if (v!=Py_None) { /* set new value (reallocate if needed --
see f2py generated code for more
details ) */
for(k=0;k<fp->defs[i].rank;k++) dims[k]=-1;
if ((arr = array_from_pyobj(fp->defs[i].type,dims,fp->defs[i].rank,F2PY_INTENT_IN,v))==NULL)
return -1;
(*(fp->defs[i].func))(&fp->defs[i].rank,PyArray_DIMS(arr),set_data,&flag);
} else { /* deallocate */
for(k=0;k<fp->defs[i].rank;k++) dims[k]=0;
(*(fp->defs[i].func))(&fp->defs[i].rank,dims,set_data,&flag);
for(k=0;k<fp->defs[i].rank;k++) dims[k]=-1;
}
memcpy(fp->defs[i].dims.d,dims,fp->defs[i].rank*sizeof(npy_intp));
} else { /* not allocatable array */
if ((arr = array_from_pyobj(fp->defs[i].type,fp->defs[i].dims.d,fp->defs[i].rank,F2PY_INTENT_IN,v))==NULL)
return -1;
}
if (fp->defs[i].data!=NULL) { /* copy Python object to Fortran array */
npy_intp s = PyArray_MultiplyList(fp->defs[i].dims.d,PyArray_NDIM(arr));
if (s==-1)
s = PyArray_MultiplyList(PyArray_DIMS(arr),PyArray_NDIM(arr));
if (s<0 ||
(memcpy(fp->defs[i].data,PyArray_DATA(arr),s*PyArray_ITEMSIZE(arr)))==NULL) {
if ((PyObject*)arr!=v) {
Py_DECREF(arr);
}
return -1;
}
if ((PyObject*)arr!=v) {
Py_DECREF(arr);
}
} else return (fp->defs[i].func==NULL?-1:0);
return 0; /* succesful */
}
if (fp->dict == NULL) {
fp->dict = PyDict_New();
if (fp->dict == NULL)
return -1;
}
if (v == NULL) {
int rv = PyDict_DelItemString(fp->dict, name);
if (rv < 0)
PyErr_SetString(PyExc_AttributeError,"delete non-existing fortran attribute");
return rv;
}
else
return PyDict_SetItemString(fp->dict, name, v);
}
static PyObject*
fortran_call(PyFortranObject *fp, PyObject *arg, PyObject *kw) {
int i = 0;
/* printf("fortran call
name=%s,func=%p,data=%p,%p\n",fp->defs[i].name,
fp->defs[i].func,fp->defs[i].data,&fp->defs[i].data); */
if (fp->defs[i].rank==-1) {/* is Fortran routine */
if (fp->defs[i].func==NULL) {
PyErr_Format(PyExc_RuntimeError, "no function to call");
return NULL;
}
else if (fp->defs[i].data==NULL)
/* dummy routine */
return (*((fortranfunc)(fp->defs[i].func)))((PyObject *)fp,arg,kw,NULL);
else
return (*((fortranfunc)(fp->defs[i].func)))((PyObject *)fp,arg,kw,
(void *)fp->defs[i].data);
}
PyErr_Format(PyExc_TypeError, "this fortran object is not callable");
return NULL;
}
static PyObject *
fortran_repr(PyFortranObject *fp)
{
PyObject *name = NULL, *repr = NULL;
name = PyObject_GetAttrString((PyObject *)fp, "__name__");
PyErr_Clear();
#if PY_VERSION_HEX >= 0x03000000
if (name != NULL && PyUnicode_Check(name)) {
repr = PyUnicode_FromFormat("<fortran %U>", name);
}
else {
repr = PyUnicode_FromString("<fortran object>");
}
#else
if (name != NULL && PyString_Check(name)) {
repr = PyString_FromFormat("<fortran %s>", PyString_AsString(name));
}
else {
repr = PyString_FromString("<fortran object>");
}
#endif
Py_XDECREF(name);
return repr;
}
PyTypeObject PyFortran_Type = {
#if PY_VERSION_HEX >= 0x03000000
PyVarObject_HEAD_INIT(NULL, 0)
#else
PyObject_HEAD_INIT(0)
0, /*ob_size*/
#endif
"fortran", /*tp_name*/
sizeof(PyFortranObject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
(destructor)fortran_dealloc, /*tp_dealloc*/
0, /*tp_print*/
(getattrfunc)fortran_getattr, /*tp_getattr*/
(setattrfunc)fortran_setattr, /*tp_setattr*/
0, /*tp_compare/tp_reserved*/
(reprfunc)fortran_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
(ternaryfunc)fortran_call, /*tp_call*/
};
/************************* f2py_report_atexit *******************************/
#ifdef F2PY_REPORT_ATEXIT
static int passed_time = 0;
static int passed_counter = 0;
static int passed_call_time = 0;
static struct timeb start_time;
static struct timeb stop_time;
static struct timeb start_call_time;
static struct timeb stop_call_time;
static int cb_passed_time = 0;
static int cb_passed_counter = 0;
static int cb_passed_call_time = 0;
static struct timeb cb_start_time;
static struct timeb cb_stop_time;
static struct timeb cb_start_call_time;
static struct timeb cb_stop_call_time;
extern void f2py_start_clock(void) { ftime(&start_time); }
extern
void f2py_start_call_clock(void) {
f2py_stop_clock();
ftime(&start_call_time);
}
extern
void f2py_stop_clock(void) {
ftime(&stop_time);
passed_time += 1000*(stop_time.time - start_time.time);
passed_time += stop_time.millitm - start_time.millitm;
}
extern
void f2py_stop_call_clock(void) {
ftime(&stop_call_time);
passed_call_time += 1000*(stop_call_time.time - start_call_time.time);
passed_call_time += stop_call_time.millitm - start_call_time.millitm;
passed_counter += 1;
f2py_start_clock();
}
extern void f2py_cb_start_clock(void) { ftime(&cb_start_time); }
extern
void f2py_cb_start_call_clock(void) {
f2py_cb_stop_clock();
ftime(&cb_start_call_time);
}
extern
void f2py_cb_stop_clock(void) {
ftime(&cb_stop_time);
cb_passed_time += 1000*(cb_stop_time.time - cb_start_time.time);
cb_passed_time += cb_stop_time.millitm - cb_start_time.millitm;
}
extern
void f2py_cb_stop_call_clock(void) {
ftime(&cb_stop_call_time);
cb_passed_call_time += 1000*(cb_stop_call_time.time - cb_start_call_time.time);
cb_passed_call_time += cb_stop_call_time.millitm - cb_start_call_time.millitm;
cb_passed_counter += 1;
f2py_cb_start_clock();
}
static int f2py_report_on_exit_been_here = 0;
extern
void f2py_report_on_exit(int exit_flag,void *name) {
if (f2py_report_on_exit_been_here) {
fprintf(stderr," %s\n",(char*)name);
return;
}
f2py_report_on_exit_been_here = 1;
fprintf(stderr," /-----------------------\\\n");
fprintf(stderr," < F2PY performance report >\n");
fprintf(stderr," \\-----------------------/\n");
fprintf(stderr,"Overall time spent in ...\n");
fprintf(stderr,"(a) wrapped (Fortran/C) functions : %8d msec\n",
passed_call_time);
fprintf(stderr,"(b) f2py interface, %6d calls : %8d msec\n",
passed_counter,passed_time);
fprintf(stderr,"(c) call-back (Python) functions : %8d msec\n",
cb_passed_call_time);
fprintf(stderr,"(d) f2py call-back interface, %6d calls : %8d msec\n",
cb_passed_counter,cb_passed_time);
fprintf(stderr,"(e) wrapped (Fortran/C) functions (acctual) : %8d msec\n\n",
passed_call_time-cb_passed_call_time-cb_passed_time);
fprintf(stderr,"Use -DF2PY_REPORT_ATEXIT_DISABLE to disable this message.\n");
fprintf(stderr,"Exit status: %d\n",exit_flag);
fprintf(stderr,"Modules : %s\n",(char*)name);
}
#endif
/********************** report on array copy ****************************/
#ifdef F2PY_REPORT_ON_ARRAY_COPY
static void f2py_report_on_array_copy(PyArrayObject* arr) {
const npy_intp arr_size = PyArray_Size((PyObject *)arr);
if (arr_size>F2PY_REPORT_ON_ARRAY_COPY) {
fprintf(stderr,"copied an array: size=%ld, elsize=%"NPY_INTP_FMT"\n",
arr_size, (npy_intp)PyArray_ITEMSIZE(arr));
}
}
static void f2py_report_on_array_copy_fromany(void) {
fprintf(stderr,"created an array from object\n");
}
#define F2PY_REPORT_ON_ARRAY_COPY_FROMARR f2py_report_on_array_copy((PyArrayObject *)arr)
#define F2PY_REPORT_ON_ARRAY_COPY_FROMANY f2py_report_on_array_copy_fromany()
#else
#define F2PY_REPORT_ON_ARRAY_COPY_FROMARR
#define F2PY_REPORT_ON_ARRAY_COPY_FROMANY
#endif
/************************* array_from_obj *******************************/
/*
* File: array_from_pyobj.c
*
* Description:
* ------------
* Provides array_from_pyobj function that returns a contigious array
* object with the given dimensions and required storage order, either
* in row-major (C) or column-major (Fortran) order. The function
* array_from_pyobj is very flexible about its Python object argument
* that can be any number, list, tuple, or array.
*
* array_from_pyobj is used in f2py generated Python extension
* modules.
*
* Author: Pearu Peterson <pearu@cens.ioc.ee>
* Created: 13-16 January 2002
* $Id: fortranobject.c,v 1.52 2005/07/11 07:44:20 pearu Exp $
*/
static int
count_nonpos(const int rank,
const npy_intp *dims) {
int i=0,r=0;
while (i<rank) {
if (dims[i] <= 0) ++r;
++i;
}
return r;
}
static int check_and_fix_dimensions(const PyArrayObject* arr,
const int rank,
npy_intp *dims);
#ifdef DEBUG_COPY_ND_ARRAY
void dump_dims(int rank, npy_intp* dims) {
int i;
printf("[");
for(i=0;i<rank;++i) {
printf("%3" NPY_INTP_FMT, dims[i]);
}
printf("]\n");
}
void dump_attrs(const PyArrayObject* obj) {
const PyArrayObject_fields *arr = (const PyArrayObject_fields*) obj;
int rank = PyArray_NDIM(arr);
npy_intp size = PyArray_Size((PyObject *)arr);
printf("\trank = %d, flags = %d, size = %" NPY_INTP_FMT "\n",
rank,arr->flags,size);
printf("\tstrides = ");
dump_dims(rank,arr->strides);
printf("\tdimensions = ");
dump_dims(rank,arr->dimensions);
}
#endif
#define SWAPTYPE(a,b,t) {t c; c = (a); (a) = (b); (b) = c; }
static int swap_arrays(PyArrayObject* obj1, PyArrayObject* obj2) {
PyArrayObject_fields *arr1 = (PyArrayObject_fields*) obj1,
*arr2 = (PyArrayObject_fields*) obj2;
SWAPTYPE(arr1->data,arr2->data,char*);
SWAPTYPE(arr1->nd,arr2->nd,int);
SWAPTYPE(arr1->dimensions,arr2->dimensions,npy_intp*);
SWAPTYPE(arr1->strides,arr2->strides,npy_intp*);
SWAPTYPE(arr1->base,arr2->base,PyObject*);
SWAPTYPE(arr1->descr,arr2->descr,PyArray_Descr*);
SWAPTYPE(arr1->flags,arr2->flags,int);
/* SWAPTYPE(arr1->weakreflist,arr2->weakreflist,PyObject*); */
return 0;
}
#define ARRAY_ISCOMPATIBLE(arr,type_num) \
( (PyArray_ISINTEGER(arr) && PyTypeNum_ISINTEGER(type_num)) \
||(PyArray_ISFLOAT(arr) && PyTypeNum_ISFLOAT(type_num)) \
||(PyArray_ISCOMPLEX(arr) && PyTypeNum_ISCOMPLEX(type_num)) \
||(PyArray_ISBOOL(arr) && PyTypeNum_ISBOOL(type_num)) \
)
extern
PyArrayObject* array_from_pyobj(const int type_num,
npy_intp *dims,
const int rank,
const int intent,
PyObject *obj) {
/* Note about reference counting
-----------------------------
If the caller returns the array to Python, it must be done with
Py_BuildValue("N",arr).
Otherwise, if obj!=arr then the caller must call Py_DECREF(arr).
Note on intent(cache,out,..)
---------------------
Don't expect correct data when returning intent(cache) array.
*/
char mess[200];
PyArrayObject *arr = NULL;
PyArray_Descr *descr;
char typechar;
int elsize;
if ((intent & F2PY_INTENT_HIDE)
|| ((intent & F2PY_INTENT_CACHE) && (obj==Py_None))
|| ((intent & F2PY_OPTIONAL) && (obj==Py_None))
) {
/* intent(cache), optional, intent(hide) */
if (count_nonpos(rank,dims)) {
int i;
strcpy(mess, "failed to create intent(cache|hide)|optional array"
"-- must have defined dimensions but got (");
for(i=0;i<rank;++i)
sprintf(mess+strlen(mess),"%" NPY_INTP_FMT ",",dims[i]);
strcat(mess, ")");
PyErr_SetString(PyExc_ValueError,mess);
return NULL;
}
arr = (PyArrayObject *)
PyArray_New(&PyArray_Type, rank, dims, type_num,
NULL,NULL,0,
!(intent&F2PY_INTENT_C),
NULL);
if (arr==NULL) return NULL;
if (!(intent & F2PY_INTENT_CACHE))
PyArray_FILLWBYTE(arr, 0);
return arr;
}
descr = PyArray_DescrFromType(type_num);
elsize = descr->elsize;
typechar = descr->type;
Py_DECREF(descr);
if (PyArray_Check(obj)) {
arr = (PyArrayObject *)obj;
if (intent & F2PY_INTENT_CACHE) {
/* intent(cache) */
if (PyArray_ISONESEGMENT(arr)
&& PyArray_ITEMSIZE(arr)>=elsize) {
if (check_and_fix_dimensions(arr,rank,dims)) {
return NULL; /*XXX: set exception */
}
if (intent & F2PY_INTENT_OUT)
Py_INCREF(arr);
return arr;
}
strcpy(mess, "failed to initialize intent(cache) array");
if (!PyArray_ISONESEGMENT(arr))
strcat(mess, " -- input must be in one segment");
if (PyArray_ITEMSIZE(arr)<elsize)
sprintf(mess+strlen(mess),
" -- expected at least elsize=%d but got %" NPY_INTP_FMT,
elsize,
(npy_intp)PyArray_ITEMSIZE(arr)
);
PyErr_SetString(PyExc_ValueError,mess);
return NULL;
}
/* here we have always intent(in) or intent(inout) or intent(inplace) */
if (check_and_fix_dimensions(arr,rank,dims)) {
return NULL; /*XXX: set exception */
}
/*
printf("intent alignement=%d\n", F2PY_GET_ALIGNMENT(intent));
printf("alignement check=%d\n", F2PY_CHECK_ALIGNMENT(arr, intent));
int i;
for (i=1;i<=16;i++)
printf("i=%d isaligned=%d\n", i, ARRAY_ISALIGNED(arr, i));
*/
if ((! (intent & F2PY_INTENT_COPY))
&& PyArray_ITEMSIZE(arr)==elsize
&& ARRAY_ISCOMPATIBLE(arr,type_num)
&& F2PY_CHECK_ALIGNMENT(arr, intent)
) {
if ((intent & F2PY_INTENT_C)?PyArray_ISCARRAY(arr):PyArray_ISFARRAY(arr)) {
if ((intent & F2PY_INTENT_OUT)) {
Py_INCREF(arr);
}
/* Returning input array */
return arr;
}
}
if (intent & F2PY_INTENT_INOUT) {
strcpy(mess, "failed to initialize intent(inout) array");
if ((intent & F2PY_INTENT_C) && !PyArray_ISCARRAY(arr))
strcat(mess, " -- input not contiguous");
if (!(intent & F2PY_INTENT_C) && !PyArray_ISFARRAY(arr))
strcat(mess, " -- input not fortran contiguous");
if (PyArray_ITEMSIZE(arr)!=elsize)
sprintf(mess+strlen(mess),
" -- expected elsize=%d but got %" NPY_INTP_FMT,
elsize,
(npy_intp)PyArray_ITEMSIZE(arr)
);
if (!(ARRAY_ISCOMPATIBLE(arr,type_num)))
sprintf(mess+strlen(mess)," -- input '%c' not compatible to '%c'",
PyArray_DESCR(arr)->type,typechar);
if (!(F2PY_CHECK_ALIGNMENT(arr, intent)))
sprintf(mess+strlen(mess)," -- input not %d-aligned", F2PY_GET_ALIGNMENT(intent));
PyErr_SetString(PyExc_ValueError,mess);
return NULL;
}
/* here we have always intent(in) or intent(inplace) */
{
PyArrayObject *retarr = (PyArrayObject *) \
PyArray_New(&PyArray_Type, PyArray_NDIM(arr), PyArray_DIMS(arr), type_num,
NULL,NULL,0,
!(intent&F2PY_INTENT_C),
NULL);
if (retarr==NULL)
return NULL;
F2PY_REPORT_ON_ARRAY_COPY_FROMARR;
if (PyArray_CopyInto(retarr, arr)) {
Py_DECREF(retarr);
return NULL;
}
if (intent & F2PY_INTENT_INPLACE) {
if (swap_arrays(arr,retarr))
return NULL; /* XXX: set exception */
Py_XDECREF(retarr);
if (intent & F2PY_INTENT_OUT)
Py_INCREF(arr);
} else {
arr = retarr;
}
}
return arr;
}
if ((intent & F2PY_INTENT_INOUT) ||
(intent & F2PY_INTENT_INPLACE) ||
(intent & F2PY_INTENT_CACHE)) {
PyErr_SetString(PyExc_TypeError,
"failed to initialize intent(inout|inplace|cache) "
"array, input not an array");
return NULL;
}
{
F2PY_REPORT_ON_ARRAY_COPY_FROMANY;
arr = (PyArrayObject *) \
PyArray_FromAny(obj,PyArray_DescrFromType(type_num), 0,0,
((intent & F2PY_INTENT_C)?NPY_ARRAY_CARRAY:NPY_ARRAY_FARRAY) \
| NPY_ARRAY_FORCECAST, NULL);
if (arr==NULL)
return NULL;
if (check_and_fix_dimensions(arr,rank,dims))
return NULL; /*XXX: set exception */
return arr;
}
}
/*****************************************/
/* Helper functions for array_from_pyobj */
/*****************************************/
static
int check_and_fix_dimensions(const PyArrayObject* arr,const int rank,npy_intp *dims) {
/*
This function fills in blanks (that are -1\'s) in dims list using
the dimensions from arr. It also checks that non-blank dims will
match with the corresponding values in arr dimensions.
*/
const npy_intp arr_size = (PyArray_NDIM(arr))?PyArray_Size((PyObject *)arr):1;
#ifdef DEBUG_COPY_ND_ARRAY
dump_attrs(arr);
printf("check_and_fix_dimensions:init: dims=");
dump_dims(rank,dims);
#endif
if (rank > PyArray_NDIM(arr)) { /* [1,2] -> [[1],[2]]; 1 -> [[1]] */
npy_intp new_size = 1;
int free_axe = -1;
int i;
npy_intp d;
/* Fill dims where -1 or 0; check dimensions; calc new_size; */
for(i=0;i<PyArray_NDIM(arr);++i) {
d = PyArray_DIM(arr,i);
if (dims[i] >= 0) {
if (d>1 && dims[i]!=d) {
fprintf(stderr,"%d-th dimension must be fixed to %" NPY_INTP_FMT
" but got %" NPY_INTP_FMT "\n",
i,dims[i], d);
return 1;
}
if (!dims[i]) dims[i] = 1;
} else {
dims[i] = d ? d : 1;
}
new_size *= dims[i];
}
for(i=PyArray_NDIM(arr);i<rank;++i)
if (dims[i]>1) {
fprintf(stderr,"%d-th dimension must be %" NPY_INTP_FMT
" but got 0 (not defined).\n",
i,dims[i]);
return 1;
} else if (free_axe<0)
free_axe = i;
else
dims[i] = 1;
if (free_axe>=0) {
dims[free_axe] = arr_size/new_size;
new_size *= dims[free_axe];
}
if (new_size != arr_size) {
fprintf(stderr,"unexpected array size: new_size=%" NPY_INTP_FMT
", got array with arr_size=%" NPY_INTP_FMT " (maybe too many free"
" indices)\n", new_size,arr_size);
return 1;
}
} else if (rank==PyArray_NDIM(arr)) {
npy_intp new_size = 1;
int i;
npy_intp d;
for (i=0; i<rank; ++i) {
d = PyArray_DIM(arr,i);
if (dims[i]>=0) {
if (d > 1 && d!=dims[i]) {
fprintf(stderr,"%d-th dimension must be fixed to %" NPY_INTP_FMT
" but got %" NPY_INTP_FMT "\n",
i,dims[i],d);
return 1;
}
if (!dims[i]) dims[i] = 1;
} else dims[i] = d;
new_size *= dims[i];
}
if (new_size != arr_size) {
fprintf(stderr,"unexpected array size: new_size=%" NPY_INTP_FMT
", got array with arr_size=%" NPY_INTP_FMT "\n", new_size,arr_size);
return 1;
}
} else { /* [[1,2]] -> [[1],[2]] */
int i,j;
npy_intp d;
int effrank;
npy_intp size;
for (i=0,effrank=0;i<PyArray_NDIM(arr);++i)
if (PyArray_DIM(arr,i)>1) ++effrank;
if (dims[rank-1]>=0)
if (effrank>rank) {
fprintf(stderr,"too many axes: %d (effrank=%d), expected rank=%d\n",
PyArray_NDIM(arr),effrank,rank);
return 1;
}
for (i=0,j=0;i<rank;++i) {
while (j<PyArray_NDIM(arr) && PyArray_DIM(arr,j)<2) ++j;
if (j>=PyArray_NDIM(arr)) d = 1;
else d = PyArray_DIM(arr,j++);
if (dims[i]>=0) {
if (d>1 && d!=dims[i]) {
fprintf(stderr,"%d-th dimension must be fixed to %" NPY_INTP_FMT
" but got %" NPY_INTP_FMT " (real index=%d)\n",
i,dims[i],d,j-1);
return 1;
}
if (!dims[i]) dims[i] = 1;
} else
dims[i] = d;
}
for (i=rank;i<PyArray_NDIM(arr);++i) { /* [[1,2],[3,4]] -> [1,2,3,4] */
while (j<PyArray_NDIM(arr) && PyArray_DIM(arr,j)<2) ++j;
if (j>=PyArray_NDIM(arr)) d = 1;
else d = PyArray_DIM(arr,j++);
dims[rank-1] *= d;
}
for (i=0,size=1;i<rank;++i) size *= dims[i];
if (size != arr_size) {
fprintf(stderr,"unexpected array size: size=%" NPY_INTP_FMT ", arr_size=%" NPY_INTP_FMT
", rank=%d, effrank=%d, arr.nd=%d, dims=[",
size,arr_size,rank,effrank,PyArray_NDIM(arr));
for (i=0;i<rank;++i) fprintf(stderr," %" NPY_INTP_FMT,dims[i]);
fprintf(stderr," ], arr.dims=[");
for (i=0;i<PyArray_NDIM(arr);++i) fprintf(stderr," %" NPY_INTP_FMT,PyArray_DIM(arr,i));
fprintf(stderr," ]\n");
return 1;
}
}
#ifdef DEBUG_COPY_ND_ARRAY
printf("check_and_fix_dimensions:end: dims=");
dump_dims(rank,dims);
#endif
return 0;
}
/* End of file: array_from_pyobj.c */
/************************* copy_ND_array *******************************/
extern
int copy_ND_array(const PyArrayObject *arr, PyArrayObject *out)
{
F2PY_REPORT_ON_ARRAY_COPY_FROMARR;
return PyArray_CopyInto(out, (PyArrayObject *)arr);
}
/*********************************************/
/* Compatibility functions for Python >= 3.0 */
/*********************************************/
#if PY_VERSION_HEX >= 0x03000000
PyObject *
F2PyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *))
{
PyObject *ret = PyCapsule_New(ptr, NULL, dtor);
if (ret == NULL) {
PyErr_Clear();
}
return ret;
}
void *
F2PyCapsule_AsVoidPtr(PyObject *obj)
{
void *ret = PyCapsule_GetPointer(obj, NULL);
if (ret == NULL) {
PyErr_Clear();
}
return ret;
}
int
F2PyCapsule_Check(PyObject *ptr)
{
return PyCapsule_CheckExact(ptr);
}
#else
PyObject *
F2PyCapsule_FromVoidPtr(void *ptr, void (*dtor)(void *))
{
return PyCObject_FromVoidPtr(ptr, dtor);
}
void *
F2PyCapsule_AsVoidPtr(PyObject *ptr)
{
return PyCObject_AsVoidPtr(ptr);
}
int
F2PyCapsule_Check(PyObject *ptr)
{
return PyCObject_Check(ptr);
}
#endif
#ifdef __cplusplus
}
#endif
/************************* EOF fortranobject.c *******************************/
|