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// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/python/numeric.hpp>
#include <boost/python/tuple.hpp>
#include <boost/python/module.hpp>
#include <boost/python/def.hpp>
#include <boost/python/str.hpp>
using namespace boost::python;
namespace py = boost::python;
// See if we can invoke array() from C++
numeric::array new_array()
{
return numeric::array(
py::make_tuple(
py::make_tuple(1,2,3)
, py::make_tuple(4,5,6)
, py::make_tuple(7,8,9)
)
);
}
// test argument conversion
void take_array(numeric::array /*x*/)
{
}
// A separate function to invoke the info() member. Must happen
// outside any doctests since this prints directly to stdout and the
// result text includes the address of the 'self' array.
void info(numeric::array const& z)
{
z.info();
}
namespace
{
object handle_error()
{
PyObject* type, *value, *traceback;
PyErr_Fetch(&type, &value, &traceback);
handle<> ty(type), v(value), tr(traceback);
return object("exception");
str format("exception type: %sn");
format += "exception value: %sn";
format += "traceback:n%s" ;
object ret = format % py::make_tuple(ty, v, tr);
return ret;
}
}
#define CHECK(expr) \
{ \
object result; \
try { result = object(expr); } \
catch(error_already_set) \
{ \
result = handle_error(); \
} \
check(result); \
}
// Tests which work on both Numeric and numarray array objects. Of
// course all of the operators "just work" since numeric::array
// inherits that behavior from object.
void exercise(numeric::array& y, object check)
{
y[py::make_tuple(2,1)] = 3;
CHECK(y);
CHECK(y.astype('D'));
CHECK(y.copy());
CHECK(y.typecode());
}
// numarray-specific tests. check is a callable object which we can
// use to record intermediate results, which are later compared with
// the results of corresponding python operations.
void exercise_numarray(numeric::array& y, object check)
{
CHECK(str(y));
CHECK(y.argmax());
CHECK(y.argmax(0));
CHECK(y.argmin());
CHECK(y.argmin(0));
CHECK(y.argsort());
CHECK(y.argsort(1));
y.byteswap();
CHECK(y);
CHECK(y.diagonal());
CHECK(y.diagonal(1));
CHECK(y.diagonal(0, 0));
CHECK(y.diagonal(0, 1, 0));
CHECK(y.is_c_array());
CHECK(y.isbyteswapped());
CHECK(y.trace());
CHECK(y.trace(1));
CHECK(y.trace(0, 0));
CHECK(y.trace(0, 1, 0));
CHECK(y.new_("D").getshape());
CHECK(y.new_("D").type());
y.sort();
CHECK(y);
CHECK(y.type());
CHECK(y.factory(py::make_tuple(1.2, 3.4)));
CHECK(y.factory(py::make_tuple(1.2, 3.4), "f8"));
CHECK(y.factory(py::make_tuple(1.2, 3.4), "f8", true));
CHECK(y.factory(py::make_tuple(1.2, 3.4), "f8", true, false));
CHECK(y.factory(py::make_tuple(1.2, 3.4), "f8", true, false, object()));
CHECK (y.factory(py::make_tuple(1.2, 3.4), "f8", true, false, object(), py::make_tuple(1,2,1)));
}
BOOST_PYTHON_MODULE(numpy_ext)
{
def("new_array", new_array);
def("take_array", take_array);
def("exercise", exercise);
def("exercise_numarray", exercise_numarray);
def("set_module_and_type", &numeric::array::set_module_and_type);
def("get_module_name", &numeric::array::get_module_name);
def("info", info);
}
#include "module_tail.cpp"
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