diff options
Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/python/test/numpy/ndarray.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/boost/libs/python/test/numpy/ndarray.cpp b/src/boost/libs/python/test/numpy/ndarray.cpp new file mode 100644 index 000000000..75a101043 --- /dev/null +++ b/src/boost/libs/python/test/numpy/ndarray.cpp @@ -0,0 +1,51 @@ +// Copyright Jim Bosch & Ankit Daftery 2010-2012. +// Copyright Stefan Seefeld 2016. +// 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/numpy.hpp> + +namespace p = boost::python; +namespace np = boost::python::numpy; + +np::ndarray zeros(p::tuple shape, np::dtype dt) { return np::zeros(shape, dt);} +np::ndarray array2(p::object obj, np::dtype dt) { return np::array(obj,dt);} +np::ndarray array1(p::object obj) { return np::array(obj);} +np::ndarray empty1(p::tuple shape, np::dtype dt) { return np::empty(shape,dt);} + +np::ndarray c_empty(p::tuple shape, np::dtype dt) +{ + // convert 'shape' to a C array so we can test the corresponding + // version of the constructor + unsigned len = p::len(shape); + Py_intptr_t *c_shape = new Py_intptr_t[len]; + for (unsigned i = 0; i != len; ++i) + c_shape[i] = p::extract<Py_intptr_t>(shape[i]); + np::ndarray result = np::empty(len, c_shape, dt); + delete [] c_shape; + return result; +} + +np::ndarray transpose(np::ndarray arr) { return arr.transpose();} +np::ndarray squeeze(np::ndarray arr) { return arr.squeeze();} +np::ndarray reshape(np::ndarray arr,p::tuple tup) { return arr.reshape(tup);} + +Py_intptr_t shape_index(np::ndarray arr,int k) { return arr.shape(k); } +Py_intptr_t strides_index(np::ndarray arr,int k) { return arr.strides(k); } + +BOOST_PYTHON_MODULE(ndarray_ext) +{ + np::initialize(); + p::def("zeros", zeros); + p::def("zeros_matrix", zeros, np::as_matrix<>()); + p::def("array", array2); + p::def("array", array1); + p::def("empty", empty1); + p::def("c_empty", c_empty); + p::def("transpose", transpose); + p::def("squeeze", squeeze); + p::def("reshape", reshape); + p::def("shape_index", shape_index); + p::def("strides_index", strides_index); +} |