/usr/include/dolfin/swig/typemaps/numpy.i is in libdolfin-dev 1.4.0+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2007-2009 Ola Skavhaug
//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Johan Hake, 2008-2009.
// Modified by Anders logg, 2009.
//
// First added: 2007-12-16
// Last changed: 2011-04-29
//-----------------------------------------------------------------------------
// Function to set the base of an NumPy array object
//-----------------------------------------------------------------------------
%inline%{
PyObject* _attach_base_to_numpy_array(PyObject* obj, PyObject* owner)
{
if (owner == NULL)
{
PyErr_SetString(PyExc_TypeError, "Expected a Python object as owner argument");
return NULL;
}
PyArrayObject* array = reinterpret_cast<PyArrayObject*>(obj);
if (array == NULL)
{
PyErr_SetString(PyExc_TypeError, "NumPy conversion error");
return NULL;
}
// Bump the references
Py_XINCREF(owner);
Py_XINCREF(Py_None);
// Assign the base
#if NUMPY_VERSION_MINOR >= 7
PyArray_SetBaseObject(array, owner);
#else
PyArray_BASE(array) = owner;
#endif
return Py_None;
}
%}
//-----------------------------------------------------------------------------
// Help defines for using the generated numpy array wrappers
//-----------------------------------------------------------------------------
#define %make_numpy_array(dim, type_name) make_ ## dim ## d_numpy_array_ ## type_name
#define make_numpy_array_frag(dim, type_name) "make_" %str(dim) "d_numpy_array_" %str(type_name)
//-----------------------------------------------------------------------------
// A fragment function which takes a PyArray as a PyObject, check conversion and
// set the writable flags
//-----------------------------------------------------------------------------
%fragment("return_py_array", "header") {
SWIGINTERNINLINE PyObject* return_py_array(PyObject* obj, bool writable)
{
PyArrayObject* array = reinterpret_cast<PyArrayObject*>(obj);
if ( obj == NULL )
{
PyErr_SetString(PyExc_TypeError, "NumPy conversion error");
return NULL;
}
// Set writable flag on numpy array
if ( !writable )
{
// Get flag
#if NUMPY_VERSION_MINOR >= 7
PyArray_CLEARFLAGS(array, NPY_ARRAY_WRITEABLE);
#else
array->flags &= ~NPY_WRITEABLE;
#endif
}
return reinterpret_cast<PyObject*>(array);
}
}
//-----------------------------------------------------------------------------
// Macro for generating fragments to constructing NumPys array from data ponters
// The macro generates two functions, one for 1D and one for 2D arrays
//
// TYPE : The pointer type
// NUMPY_TYPE : The NumPy type that is going to be checked for
// TYPE_NAME : The name of the pointer type, 'double' for 'double', 'uint' for
// 'dolfin::uint', size_t for std::size_t
//
// Note that each invocation of this macro two functions will be inlined in
// the SWIG layer:
//
// 1) make_1d_numpy_array_{TYPE_NAME}
// 2) make_2d_numpy_array_{TYPE_NAME}
//
// Here TYPE_NAME is used to name the generated C++ function.
//-----------------------------------------------------------------------------
%define NUMPY_ARRAY_FRAGMENTS(TYPE, NUMPY_TYPE, TYPE_NAME)
%fragment(make_numpy_array_frag(2, TYPE_NAME), "header",
fragment="return_py_array") {
SWIGINTERNINLINE PyObject* %make_numpy_array(2, TYPE_NAME)
(int m, int n, const TYPE* dataptr, bool writable = true)
{
npy_intp adims[2] = {m, n};
return return_py_array(PyArray_SimpleNewFromData(2, adims, NUMPY_TYPE,
(char *)(dataptr)), writable);
}}
%fragment(make_numpy_array_frag(1, TYPE_NAME), "header",
fragment="return_py_array") {
SWIGINTERNINLINE PyObject* %make_numpy_array(1, TYPE_NAME)
(int m, const TYPE* dataptr, bool writable = true)
{
npy_intp adims[1] = {m};
return return_py_array(PyArray_SimpleNewFromData(1, adims, NUMPY_TYPE,
(char *)(dataptr)), writable);
}}
// Force the fragments to be instantiated
%fragment(make_numpy_array_frag(1, TYPE_NAME));
%fragment(make_numpy_array_frag(2, TYPE_NAME));
%enddef
// The below fragments are created manually to dynamically handle the type of
// dolfin::la_index, which can be a 32 bit or a 64 bit integer.
%fragment(make_numpy_array_frag(2, dolfin_index), "header",
fragment="return_py_array") {
SWIGINTERNINLINE PyObject* %make_numpy_array(2, dolfin_index)
(int m, int n, const dolfin::la_index* dataptr, bool writable = true)
{
npy_intp adims[2] = {m, n};
if (sizeof(dolfin::la_index) == 4)
{
return return_py_array(PyArray_SimpleNewFromData(2, adims, NPY_INT32,
(char *)(dataptr)), writable);
}
else if (sizeof(dolfin::la_index) == 8)
{
return return_py_array(PyArray_SimpleNewFromData(2, adims, NPY_INT64,
(char *)(dataptr)), writable);
}
else
throw std::runtime_error("sizeof(dolfin::la_index) incompatible NumPy types");
}}
%fragment(make_numpy_array_frag(1, dolfin_index), "header",
fragment="return_py_array") {
SWIGINTERNINLINE PyObject* %make_numpy_array(1, dolfin_index)
(int m, const dolfin::la_index* dataptr, bool writable = true)
{
npy_intp adims[1] = {m};
if (sizeof(dolfin::la_index) == 4)
{
return return_py_array(PyArray_SimpleNewFromData(1, adims, NPY_INT32,
(char *)(dataptr)), writable);
}
else if (sizeof(dolfin::la_index) == 8)
{
return return_py_array(PyArray_SimpleNewFromData(1, adims, NPY_INT64,
(char *)(dataptr)), writable);
}
else
throw std::runtime_error("sizeof(dolfin::la_index) incompatible NumPy types");
}}
// Force the fragments to be instantiated
%fragment(make_numpy_array_frag(1, dolfin_index));
%fragment(make_numpy_array_frag(2, dolfin_index));
//-----------------------------------------------------------------------------
// Macro for defining an unsafe in-typemap for NumPy arrays -> c arrays
//
// The typmaps defined by this macro just passes the pointer to the C array,
// contained in the NumPy array to the function. The knowledge of the length
// of the incomming array is not used.
//
// TYPE : The pointer type
// TYPE_UPPER : The SWIG specific name of the type used in the array type checks values
// SWIG use: INT32 for integer, DOUBLE for double aso.
// NUMPY_TYPE : The NumPy type that is going to be checked for
// TYPE_NAME : The name of the pointer type, 'double' for 'double', 'uint' for
// 'dolfin::uint'
// DESCR : The char descriptor of the NumPy type
//-----------------------------------------------------------------------------
#define convert_numpy_to_array_no_check(Type) "convert_numpy_to_array_no_check_" {Type}
%define UNSAFE_NUMPY_TYPEMAPS(TYPE,TYPE_UPPER,NUMPY_TYPE,TYPE_NAME,DESCR)
%fragment(convert_numpy_to_array_no_check(TYPE_NAME), "header") {
//-----------------------------------------------------------------------------
// Typemap function (Reducing wrapper code size)
//-----------------------------------------------------------------------------
SWIGINTERN bool convert_numpy_to_array_no_check_ ## TYPE_NAME(PyObject* input, TYPE*& ret)
{
if (PyArray_Check(input))
{
PyArrayObject *xa = reinterpret_cast<PyArrayObject*>(input);
if (PyArray_ISCONTIGUOUS(xa) && PyArray_TYPE(xa) == NUMPY_TYPE)
{
ret = static_cast<TYPE*>(PyArray_DATA(xa));
return true;
}
}
PyErr_SetString(PyExc_TypeError,"contiguous numpy array of 'TYPE_NAME' expected. Make sure that the numpy array is contiguous, and uses dtype=DESCR.");
return false;
}
}
//-----------------------------------------------------------------------------
// The typecheck
//-----------------------------------------------------------------------------
%typecheck(SWIG_TYPECHECK_ ## TYPE_UPPER ## _ARRAY) TYPE *
{
$1 = PyArray_Check($input) ? 1 : 0;
}
//-----------------------------------------------------------------------------
// The typemap
//-----------------------------------------------------------------------------
%typemap(in, fragment=convert_numpy_to_array_no_check(TYPE_NAME)) TYPE *
{
if (!convert_numpy_to_array_no_check_ ## TYPE_NAME($input,$1))
return NULL;
}
//-----------------------------------------------------------------------------
// Apply the typemap on the TYPE* _array argument
//-----------------------------------------------------------------------------
%apply TYPE* {TYPE* _array}
%enddef
//-----------------------------------------------------------------------------
// Macro for defining an safe in-typemap for NumPy arrays -> c arrays
//
// Type : The pointer type
// TYPE_UPPER : The SWIG specific name of the type used in the array type checks values
// SWIG use: INT32 for integer, DOUBLE for double aso.
// NUMPY_TYPE : The NumPy type that is going to be checked for
// TYPE_NAME : The name of the pointer type, 'double' for 'double', 'size_t' for
// 'std::size_t'
// DESCR : The char descriptor of the NumPy type
//-----------------------------------------------------------------------------
#define convert_numpy_to_array_with_check(Type) "convert_numpy_to_array_with_check_" {Type}
%define SAFE_NUMPY_TYPEMAPS(TYPE,TYPE_UPPER,NUMPY_TYPE,TYPE_NAME,DESCR)
%fragment(convert_numpy_to_array_with_check(TYPE_NAME), "header") {
//-----------------------------------------------------------------------------
// Typemap function (Reducing wrapper code size)
//-----------------------------------------------------------------------------
SWIGINTERN bool convert_numpy_to_array_with_check_ ## TYPE_NAME(PyObject* input, std::size_t& _array_dim, TYPE*& _array)
{
if (PyArray_Check(input))
{
PyArrayObject *xa = reinterpret_cast<PyArrayObject*>(input);
if (PyArray_ISCONTIGUOUS(xa) && (PyArray_TYPE(xa) == NUMPY_TYPE) &&
(PyArray_NDIM(xa)==1))
{
_array = static_cast<TYPE*>(PyArray_DATA(xa));
_array_dim = static_cast<unsigned int>(PyArray_DIM(xa,0));
return true;
}
}
PyErr_SetString(PyExc_TypeError,"contiguous numpy array of 'TYPE_NAME' expected. Make sure that the numpy array is contiguous, with 1 dimension, and uses dtype=DESCR.");
return false;
}
}
//-----------------------------------------------------------------------------
// The typecheck
//-----------------------------------------------------------------------------
%typecheck(SWIG_TYPECHECK_ ## TYPE_UPPER ## _ARRAY) (std::size_t _array_dim, TYPE* _array)
{
$1 = PyArray_Check($input) ? 1 : 0;
}
//-----------------------------------------------------------------------------
// The typemap
//-----------------------------------------------------------------------------
%typemap(in, fragment=convert_numpy_to_array_with_check(TYPE_NAME)) \
(std::size_t _array_dim, TYPE* _array)
{
if (!convert_numpy_to_array_with_check_ ## TYPE_NAME($input,$1,$2))
return NULL;
}
%enddef
//-----------------------------------------------------------------------------
// Run the different macros and instantiate the typemaps
// NOTE: If a typemap is not used an error will be issued as the generated
// typemap function will not be used
//-----------------------------------------------------------------------------
#if (DOLFIN_SIZE_T==4)
UNSAFE_NUMPY_TYPEMAPS(std::size_t, INT32, NPY_UINTP, size_t, uintp)
#else
UNSAFE_NUMPY_TYPEMAPS(std::size_t, INT64, NPY_UINTP, size_t, uintp)
#endif
UNSAFE_NUMPY_TYPEMAPS(double,DOUBLE,NPY_DOUBLE,double,float_)
UNSAFE_NUMPY_TYPEMAPS(dolfin::la_index,INT32,NPY_UINT,dolfin_index,intc)
//UNSAFE_NUMPY_TYPEMAPS(int,INT,NPY_INT,int,cint)
#if (DOLFIN_SIZE_T==4)
SAFE_NUMPY_TYPEMAPS(std::size_t,INT32,NPY_UINTP,size_t,uintp)
#else
SAFE_NUMPY_TYPEMAPS(std::size_t,INT64,NPY_UINTP,size_t,uintp)
#endif
SAFE_NUMPY_TYPEMAPS(dolfin::la_index,INT32,NPY_INT,dolfin_index,intc)
SAFE_NUMPY_TYPEMAPS(double,DOUBLE,NPY_DOUBLE,double,float_)
SAFE_NUMPY_TYPEMAPS(int,INT32,NPY_INT,int,cint)
// Instantiate the code used by the make_numpy_array macro.
// The first argument name the C++ type, the second the corresponding
// NumPy type and the third argument a shorthand name for the C++ type
// to identify the correct function
NUMPY_ARRAY_FRAGMENTS(unsigned int, NPY_UINT, uint)
NUMPY_ARRAY_FRAGMENTS(double, NPY_DOUBLE, double)
NUMPY_ARRAY_FRAGMENTS(int, NPY_INT, int)
NUMPY_ARRAY_FRAGMENTS(bool, NPY_BOOL, bool)
NUMPY_ARRAY_FRAGMENTS(std::size_t, NPY_UINTP, size_t)
//NUMPY_ARRAY_FRAGMENTS(dolfin::la_index, NPY_INT, dolfin_index)
//NUMPY_ARRAY_FRAGMENTS(dolfin::la_index, NPY_INT64, dolfin_index)
//-----------------------------------------------------------------------------
// Typecheck for function expecting two-dimensional NumPy arrays of double
//-----------------------------------------------------------------------------
%typecheck(SWIG_TYPECHECK_DOUBLE_ARRAY) (int _array_dim_0, int _array_dim_1, double* _array)
{
$1 = PyArray_Check($input) ? 1 : 0;
}
//-----------------------------------------------------------------------------
// Generic typemap to expand a two-dimensional NumPy arrays into three
// C++ arguments: _array_dim_0, _array_dim_1, _array
//-----------------------------------------------------------------------------
%typemap(in) (int _array_dim_0, int _array_dim_1, double* _array)
{
if (PyArray_Check($input))
{
PyArrayObject *xa = reinterpret_cast<PyArrayObject*>($input);
if ( PyArray_TYPE(xa) == NPY_DOUBLE )
{
if ( PyArray_NDIM(xa) == 2 )
{
$1 = PyArray_DIM(xa,0);
$2 = PyArray_DIM(xa,1);
$3 = static_cast<double*>(PyArray_DATA(xa));
}
else
{
SWIG_exception(SWIG_ValueError, "2d Array expected");
}
}
else
{
SWIG_exception(SWIG_TypeError, "Array of doubles expected");
}
}
else
{
SWIG_exception(SWIG_TypeError, "Array expected");
}
}
//-----------------------------------------------------------------------------
// Typecheck for function expecting two-dimensional NumPy arrays of int
//-----------------------------------------------------------------------------
%typecheck(SWIG_TYPECHECK_DOUBLE_ARRAY) (int _array_dim_0, int _array_dim_1, int* _array)
{
$1 = PyArray_Check($input) ? 1 : 0;
}
//-----------------------------------------------------------------------------
// Generic typemap to expand a two-dimensional NumPy arrays into three
// C++ arguments: _array_dim_0, _array_dim_1, _array
//-----------------------------------------------------------------------------
%typemap(in) (int _array_dim_0, int _array_dim_1, int* _array)
{
if PyArray_Check($input) {
PyArrayObject *xa = reinterpret_cast<PyArrayObject*>($input);
if ( PyArray_TYPE(xa) == NPY_INT ) {
if ( PyArray_NDIM(xa) == 2 ) {
$1 = PyArray_DIM(xa,0);
$2 = PyArray_DIM(xa,1);
$3 = static_cast<int*>(PyArray_DATA(xa));
} else {
SWIG_exception(SWIG_ValueError, "2d Array expected");
}
} else {
SWIG_exception(SWIG_TypeError, "Array of integers expected");
}
} else {
SWIG_exception(SWIG_TypeError, "Array expected");
}
}
//-----------------------------------------------------------------------------
// Cleaner of temporary data when passing 2D NumPy arrays to C++ functions
// expecting double **
//-----------------------------------------------------------------------------
%{
namespace __private {
class DppDeleter {
public:
double** amat;
DppDeleter () {amat = 0;}
~DppDeleter ()
{
delete[] amat;
//free(amat);
amat = 0;
}
};
}
%}
//-----------------------------------------------------------------------------
// Typemap for 2D NumPy arrays to C++ functions expecting double **
//-----------------------------------------------------------------------------
%typemap(in) double**
{
if PyArray_Check($input) {
PyArrayObject *xa = reinterpret_cast<PyArrayObject*>($input);
if ( PyArray_TYPE(xa) == NPY_DOUBLE ) {
if ( PyArray_NDIM(xa) == 2 ) {
const int m = PyArray_DIM(xa,0);
const int n = PyArray_DIM(xa,1);
$1 = new double*[m];
double *data = reinterpret_cast<double*>((*xa).data);
for (int i=0;i<m;++i)
$1[i] = &data[i*n];
} else {
SWIG_exception(SWIG_ValueError, "2d Array expected");
}
} else {
SWIG_exception(SWIG_TypeError, "Array of doubles expected");
}
} else {
SWIG_exception(SWIG_TypeError, "Array expected");
}
}
//-----------------------------------------------------------------------------
// Delete temporary data
//-----------------------------------------------------------------------------
%typemap(freearg) double**
{
delete[] $1;
}
//-----------------------------------------------------------------------------
// Typemap for 2D NumPy arrays to C++ functions expecting double **
//-----------------------------------------------------------------------------
%typemap(in) (int _matrix_dim_0, int _matrix_dim_1, double** _matrix) (__private::DppDeleter tmp)
{
if PyArray_Check($input)
{
PyArrayObject *xa = reinterpret_cast<PyArrayObject *>($input);
if ( PyArray_TYPE(xa) == NPY_DOUBLE )
{
if ( PyArray_NDIM(xa) == 2 )
{
int n = PyArray_DIM(xa,0);
int m = PyArray_DIM(xa,1);
$1 = n;
$2 = m;
double **amat = static_cast<double **>(malloc(n*sizeof*amat));
double *data = reinterpret_cast<double *>(PyArray_DATA(xa));
for (int i=0;i<n;++i)
amat[i] = data + i*n;
$3 = amat;
tmp.amat = amat;
}
else
{
SWIG_exception(SWIG_ValueError, "2d Array expected");
}
}
else
{
SWIG_exception(SWIG_TypeError, "Array of doubles expected");
}
}
else
{
SWIG_exception(SWIG_TypeError, "Array expected");
}
}
// vim:ft=cpp:
|