--- /dev/null
+// Copyright 2014 MINES ParisTech
+//
+// This file is part of LinPy.
+//
+// LinPy is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// LinPy 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with LinPy. If not, see <http://www.gnu.org/licenses/>.
+
+#include <Python.h>
+
+#include <isl/constraint.h>
+#include <isl/set.h>
+#include <isl/vertices.h>
+
+
+static inline int _append_pointer_to_list(void *pointer, void *user) {
+ PyObject *list, *item;
+ list = (PyObject *) user;
+ item = PyLong_FromVoidPtr(pointer);
+ if (item == NULL) {
+ return -1;
+ }
+ return PyList_Append(list, item);
+}
+
+static int _append_constraint_to_list(isl_constraint *constraint, void *user) {
+ return _append_pointer_to_list((void *) constraint, user);
+}
+
+static PyObject * isl_basic_set_constraints(PyObject *self, PyObject *args) {
+ long pointer;
+ isl_basic_set *bset;
+ PyObject *list;
+ if (!PyArg_ParseTuple(args, "l", &pointer)) {
+ return NULL;
+ }
+ bset = (isl_basic_set *) pointer;
+ list = PyList_New(0);
+ if (list == NULL) {
+ return NULL;
+ }
+ if (isl_basic_set_foreach_constraint(bset, _append_constraint_to_list, list) == -1) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "an error occurred in isl_basic_set_foreach_constraint");
+ Py_DECREF(list);
+ return NULL;
+ }
+ return list;
+}
+
+static int _append_basic_set_to_list(isl_basic_set *bset, void *user) {
+ return _append_pointer_to_list((void *) bset, user);
+}
+
+static PyObject * isl_set_basic_sets(PyObject *self, PyObject *args) {
+ long pointer;
+ isl_set *set;
+ PyObject *list;
+ if (!PyArg_ParseTuple(args, "l", &pointer)) {
+ return NULL;
+ }
+ set = (isl_set *) pointer;
+ list = PyList_New(0);
+ if (list == NULL) {
+ return NULL;
+ }
+ if (isl_set_foreach_basic_set(set, _append_basic_set_to_list, list) == -1) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "an error occurred in isl_set_foreach_basic_set");
+ Py_DECREF(list);
+ return NULL;
+ }
+ return list;
+}
+
+static int _append_point_to_list(isl_point *point, void* user) {
+ return _append_pointer_to_list((void *) point, user);
+}
+
+static PyObject * isl_set_points(PyObject *self, PyObject *args) {
+ long pointer;
+ isl_set *set;
+ PyObject *list;
+ if (!PyArg_ParseTuple(args, "l", &pointer)) {
+ return NULL;
+ }
+ set = (isl_set *) pointer;
+ list = PyList_New(0);
+ if (list == NULL) {
+ return NULL;
+ }
+ if (isl_set_foreach_point(set, _append_point_to_list, list) == -1) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "an error occurred in isl_set_foreach_point");
+ Py_DECREF(list);
+ return NULL;
+ }
+ return list;
+}
+
+static int _append_vertex_to_list(isl_vertex *vertex, void* user) {
+ return _append_pointer_to_list((void *) vertex, user);
+}
+
+static PyObject * isl_vertices_vertices(PyObject *self, PyObject *args) {
+ long pointer;
+ isl_vertices *vertices;
+ PyObject *list;
+ if (!PyArg_ParseTuple(args, "l", &pointer)) {
+ return NULL;
+ }
+ vertices = (isl_vertices *) pointer;
+ list = PyList_New(0);
+ if (list == NULL) {
+ return NULL;
+ }
+ if (isl_vertices_foreach_vertex(vertices, _append_vertex_to_list, list) == -1) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "an error occurred in isl_vertices_foreach_vertex");
+ Py_DECREF(list);
+ return NULL;
+ }
+ return list;
+}
+
+
+static PyMethodDef _islhelper_methods[] = {
+ {"isl_basic_set_constraints", isl_basic_set_constraints, METH_VARARGS, NULL},
+ {"isl_set_basic_sets", isl_set_basic_sets, METH_VARARGS, NULL},
+ {"isl_set_points", isl_set_points, METH_VARARGS, NULL},
+ {"isl_vertices_vertices", isl_vertices_vertices, METH_VARARGS, NULL},
+ {NULL, NULL, 0, NULL}
+};
+
+static struct PyModuleDef _islhelpermodule = {
+ PyModuleDef_HEAD_INIT,
+ "_islhelper",
+ NULL,
+ 0,
+ _islhelper_methods
+};
+
+PyMODINIT_FUNC PyInit__islhelper(void) {
+ PyObject *m;
+ m = PyModule_Create(&_islhelpermodule);
+ if (m == NULL) {
+ return NULL;
+ }
+ if (PyModule_AddObject(m, "dim_set", PyLong_FromLong(isl_dim_set)) == -1) {
+ return NULL;
+ }
+ return m;
+}