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#define FORTRANOBJECT_C
#include "fortranobject.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
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 == PyArray_STRING) {
int n = fp->defs[i].rank-1;
v = PyArray_New(&PyArray_Type, n, fp->defs[i].dims.d,
PyArray_STRING, NULL, fp->defs[i].data, fp->defs[i].dims.d[n],
NPY_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_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);
}
static PyMethodDef fortran_methods[] = {
{NULL, NULL} /* sentinel */
};
static PyObject *
fortran_doc (FortranDataDef def) {
char *p;
/*
p is used as a buffer to hold generated documentation strings.
A common operation in generating the documentation strings, is
appending a string to the buffer p. Earlier, the following
idiom was:
sprintf(p, "%s<string to be appended>", p);
but this does not work when _FORTIFY_SOURCE=2 is enabled: instead
of appending the string, the string is inserted.
As a fix, the following idiom should be used for appending
strings to a buffer p:
sprintf(p + strlen(p), "<string to be appended>");
*/
PyObject *s = NULL;
int i;
unsigned size=100;
if (def.doc!=NULL)
size += strlen(def.doc);
p = (char*)malloc (size);
p[0] = '\0'; /* make sure that the buffer has zero length */
if (sprintf(p,"%s - ",def.name)==0) goto fail;
if (def.rank==-1) {
if (def.doc==NULL) {
if (sprintf(p+strlen(p),"no docs available")==0)
goto fail;
} else {
if (sprintf(p+strlen(p),"%s",def.doc)==0)
goto fail;
}
} else {
PyArray_Descr *d = PyArray_DescrFromType(def.type);
if (sprintf(p+strlen(p),"'%c'-",d->type)==0) {
Py_DECREF(d);
goto fail;
}
Py_DECREF(d);
if (def.data==NULL) {
if (sprintf(p+strlen(p),"array(%" NPY_INTP_FMT,def.dims.d[0])==0)
goto fail;
for(i=1;i<def.rank;++i)
if (sprintf(p+strlen(p),",%" NPY_INTP_FMT,def.dims.d[i])==0)
goto fail;
if (sprintf(p+strlen(p),"), not allocated")==0)
goto fail;
} else {
if (def.rank>0) {
if (sprintf(p+strlen(p),"array(%"NPY_INTP_FMT,def.dims.d[0])==0)
goto fail;
for(i=1;i<def.rank;i++)
if (sprintf(p+strlen(p),",%" NPY_INTP_FMT,def.dims.d[i])==0)
goto fail;
if (sprintf(p+strlen(p),")")==0) goto fail;
} else {
if (sprintf(p+strlen(p),"scalar")==0) goto fail;
}
}
}
if (sprintf(p+strlen(p),"\n")==0) goto fail;
if (strlen(p)>size) {
fprintf(stderr,"fortranobject.c:fortran_doc:len(p)=%zd>%d(size):"\
" too long doc string required, increase size\n",\
strlen(p),size);
goto fail;
}
s = PyString_FromString(p);
fail:
free(p);
return s;
}
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_FARRAY,
NULL);
if (v==NULL) return NULL;
/* Py_INCREF(v); */
return v;
} else { /* array is not allocated */
Py_INCREF(Py_None);
return Py_None;
}
}
if (strcmp(name,"__dict__")==0) {
Py_INCREF(fp->dict);
return fp->dict;
}
if (strcmp(name,"__doc__")==0) {
PyObject *s = PyString_FromString("");
for (i=0;i<fp->len;i++)
PyString_ConcatAndDel(&s,fortran_doc(fp->defs[i]));
if (PyDict_SetItemString(fp->dict, name, s))
return NULL;
return s;
}
if ((strcmp(name,"_cpointer")==0) && (fp->len==1)) {
PyObject *cobj = PyCObject_FromVoidPtr((void *)(fp->defs[0].data),NULL);
if (PyDict_SetItemString(fp->dict, name, cobj))
return NULL;
return cobj;
}
return Py_FindMethod(fortran_methods, (PyObject *)fp, name);
}
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,arr->dimensions,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,arr->nd);
if (s==-1)
s = PyArray_MultiplyList(arr->dimensions,arr->nd);
if (s<0 ||
(memcpy(fp->defs[i].data,arr->data,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;
}
PyTypeObject PyFortran_Type = {
PyObject_HEAD_INIT(0)
0, /*ob_size*/
"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*/
0, /*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 long arr_size = PyArray_Size((PyObject *)arr);
if (arr_size>F2PY_REPORT_ON_ARRAY_COPY) {
fprintf(stderr,"copied an array: size=%ld, elsize=%d\n",
arr_size, 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* arr) {
int rank = arr->nd;
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* arr1, PyArrayObject* arr2) {
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)) \
)
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;
sprintf(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]);
sprintf(mess+strlen(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(obj)
&& PyArray_ITEMSIZE((PyArrayObject *)obj)>=elsize) {
if (check_and_fix_dimensions((PyArrayObject *)obj,rank,dims)) {
return NULL; /*XXX: set exception */
}
if (intent & F2PY_INTENT_OUT)
Py_INCREF(obj);
return (PyArrayObject *)obj;
}
sprintf(mess,"failed to initialize intent(cache) array");
if (!PyArray_ISONESEGMENT(obj))
sprintf(mess+strlen(mess)," -- input must be in one segment");
if (PyArray_ITEMSIZE(arr)<elsize)
sprintf(mess+strlen(mess)," -- expected at least elsize=%d but got %d",
elsize,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) {
sprintf(mess,"failed to initialize intent(inout) array");
if ((intent & F2PY_INTENT_C) && !PyArray_ISCARRAY(arr))
sprintf(mess+strlen(mess)," -- input not contiguous");
if (!(intent & F2PY_INTENT_C) && !PyArray_ISFARRAY(arr))
sprintf(mess+strlen(mess)," -- input not fortran contiguous");
if (PyArray_ITEMSIZE(arr)!=elsize)
sprintf(mess+strlen(mess)," -- expected elsize=%d but got %d",
elsize,
PyArray_ITEMSIZE(arr)
);
if (!(ARRAY_ISCOMPATIBLE(arr,type_num)))
sprintf(mess+strlen(mess)," -- input '%c' not compatible to '%c'",
arr->descr->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, arr->nd, arr->dimensions, 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)) {
sprintf(mess,"failed to initialize intent(inout|inplace|cache) array"
" -- input must be array but got %s",
PyString_AsString(PyObject_Str(PyObject_Type(obj)))
);
PyErr_SetString(PyExc_TypeError,mess);
return NULL;
}
{
F2PY_REPORT_ON_ARRAY_COPY_FROMANY;
arr = (PyArrayObject *) \
PyArray_FromAny(obj,PyArray_DescrFromType(type_num), 0,0,
((intent & F2PY_INTENT_C)?NPY_CARRAY:NPY_FARRAY) \
| NPY_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 = (arr->nd)?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 > arr->nd) { /* [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<arr->nd;++i) {
d = arr->dimensions[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=arr->nd;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==arr->nd) {
npy_intp new_size = 1;
int i;
npy_intp d;
for (i=0; i<rank; ++i) {
d = arr->dimensions[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<arr->nd;++i)
if (arr->dimensions[i]>1) ++effrank;
if (dims[rank-1]>=0)
if (effrank>rank) {
fprintf(stderr,"too many axes: %d (effrank=%d), expected rank=%d\n",
arr->nd,effrank,rank);
return 1;
}
for (i=0,j=0;i<rank;++i) {
while (j<arr->nd && arr->dimensions[j]<2) ++j;
if (j>=arr->nd) d = 1;
else d = arr->dimensions[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<arr->nd;++i) { /* [[1,2],[3,4]] -> [1,2,3,4] */
while (j<arr->nd && arr->dimensions[j]<2) ++j;
if (j>=arr->nd) d = 1;
else d = arr->dimensions[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,arr->nd);
for (i=0;i<rank;++i) fprintf(stderr," %" NPY_INTP_FMT,dims[i]);
fprintf(stderr," ], arr.dims=[");
for (i=0;i<arr->nd;++i) fprintf(stderr," %" NPY_INTP_FMT,arr->dimensions[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);
}
#ifdef __cplusplus
}
#endif
/************************* EOF fortranobject.c *******************************/
|