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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Python Interface *
* *
* Copyright (c) 1999-2006, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* This program 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 2 of the *
* License, or (at your option) any later version. *
* *
* This program 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 this program; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
* MA 02110-1301, USA. *
* *
**************************************************************************/
/* end stub */
#include "utilities/nmatrix2.h"
#include <boost/python.hpp>
namespace regina {
/**
* A utility class that provides access to a single row of a 2-by-2
* matrix. This allows us to write m[i][j] in Python for a 2-by-2
* matrix m.
*/
class NMatrix2Row {
private:
long* row;
public:
NMatrix2Row(NMatrix2& matrix, int whichRow) :
row(matrix[whichRow]) {
}
long getItem(int whichCol) {
if (whichCol < 0 || whichCol > 1) {
PyErr_SetString(PyExc_IndexError,
"NMatrix2 column index out of range");
::boost::python::throw_error_already_set();
}
return row[whichCol];
}
void setItem(int whichCol, long value) {
if (whichCol < 0 || whichCol > 1) {
PyErr_SetString(PyExc_IndexError,
"NMatrix2 column index out of range");
::boost::python::throw_error_already_set();
}
row[whichCol] = value;
}
};
}
namespace {
/**
* A trivial routine for returning the size of a 2-by-2 matrix.
*/
template <class T>
long size2(const T&) {
return 2;
}
/**
* Return a new object for accessing the given row of the given matrix.
*/
regina::NMatrix2Row* NMatrix2_getRow(regina::NMatrix2& m, int whichRow) {
if (whichRow < 0 || whichRow > 1) {
PyErr_SetString(PyExc_IndexError,
"NMatrix2 row index out of range");
::boost::python::throw_error_already_set();
}
return new regina::NMatrix2Row(m, whichRow);
}
}
using namespace boost::python;
using regina::NMatrix2;
using regina::NMatrix2Row;
namespace {
bool (*simpler1)(const NMatrix2&, const NMatrix2&) = ®ina::simpler;
bool (*simpler2)(const NMatrix2&, const NMatrix2&,
const NMatrix2&, const NMatrix2&) = ®ina::simpler;
}
void addNMatrix2() {
class_<NMatrix2Row>("NMatrix2Row", ::boost::python::no_init)
.def("__getitem__", &NMatrix2Row::getItem)
.def("__setitem__", &NMatrix2Row::setItem)
.def("__len__", size2<NMatrix2Row>)
;
class_<NMatrix2>("NMatrix2")
.def(init<const NMatrix2&>())
.def(init<long, long, long, long>())
.def("__getitem__", NMatrix2_getRow,
return_value_policy<manage_new_object,
with_custodian_and_ward_postcall<0, 1> >())
.def("__len__", &size2<regina::NMatrix2>)
.def(self * self)
.def(self * long())
.def(self + self)
.def(self - self)
.def(- self)
.def("transpose", &NMatrix2::transpose)
.def("inverse", &NMatrix2::inverse)
.def(self += self)
.def(self -= self)
.def(self *= self)
.def(self *= long())
.def("negate", &NMatrix2::negate)
.def("invert", &NMatrix2::invert)
.def(self == self)
.def(self != self)
.def("determinant", &NMatrix2::determinant)
.def("isIdentity", &NMatrix2::isIdentity)
.def("isZero", &NMatrix2::isZero)
.def(self_ns::str(self))
;
def("simpler", simpler1);
def("simpler", simpler2);
}
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