test_eigen.cpp revision 14299
110458Sandreas.hansson@arm.com/* 210458Sandreas.hansson@arm.com tests/eigen.cpp -- automatic conversion of Eigen types 310458Sandreas.hansson@arm.com 410458Sandreas.hansson@arm.com Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch> 510458Sandreas.hansson@arm.com 610458Sandreas.hansson@arm.com All rights reserved. Use of this source code is governed by a 710458Sandreas.hansson@arm.com BSD-style license that can be found in the LICENSE file. 810458Sandreas.hansson@arm.com*/ 910458Sandreas.hansson@arm.com 1010458Sandreas.hansson@arm.com#include "pybind11_tests.h" 1110458Sandreas.hansson@arm.com#include "constructor_stats.h" 1210458Sandreas.hansson@arm.com#include <pybind11/eigen.h> 1310458Sandreas.hansson@arm.com#include <pybind11/stl.h> 1410458Sandreas.hansson@arm.com 1510458Sandreas.hansson@arm.com#if defined(_MSC_VER) 1610458Sandreas.hansson@arm.com# pragma warning(disable: 4996) // C4996: std::unary_negation is deprecated 1710458Sandreas.hansson@arm.com#endif 1810458Sandreas.hansson@arm.com 1910458Sandreas.hansson@arm.com#include <Eigen/Cholesky> 2010458Sandreas.hansson@arm.com 2110458Sandreas.hansson@arm.comusing MatrixXdR = Eigen::Matrix<double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>; 2210458Sandreas.hansson@arm.com 2310458Sandreas.hansson@arm.com 2410458Sandreas.hansson@arm.com 2510458Sandreas.hansson@arm.com// Sets/resets a testing reference matrix to have values of 10*r + c, where r and c are the 2610458Sandreas.hansson@arm.com// (1-based) row/column number. 2710458Sandreas.hansson@arm.comtemplate <typename M> void reset_ref(M &x) { 2810458Sandreas.hansson@arm.com for (int i = 0; i < x.rows(); i++) for (int j = 0; j < x.cols(); j++) 2910458Sandreas.hansson@arm.com x(i, j) = 11 + 10*i + j; 3010458Sandreas.hansson@arm.com} 3110458Sandreas.hansson@arm.com 3210458Sandreas.hansson@arm.com// Returns a static, column-major matrix 3310458Sandreas.hansson@arm.comEigen::MatrixXd &get_cm() { 3410458Sandreas.hansson@arm.com static Eigen::MatrixXd *x; 3510458Sandreas.hansson@arm.com if (!x) { 3610458Sandreas.hansson@arm.com x = new Eigen::MatrixXd(3, 3); 3710458Sandreas.hansson@arm.com reset_ref(*x); 3810458Sandreas.hansson@arm.com } 3910458Sandreas.hansson@arm.com return *x; 4010458Sandreas.hansson@arm.com} 4110458Sandreas.hansson@arm.com// Likewise, but row-major 4210458Sandreas.hansson@arm.comMatrixXdR &get_rm() { 4310458Sandreas.hansson@arm.com static MatrixXdR *x; 4410458Sandreas.hansson@arm.com if (!x) { 4510458Sandreas.hansson@arm.com x = new MatrixXdR(3, 3); 4610458Sandreas.hansson@arm.com reset_ref(*x); 4710458Sandreas.hansson@arm.com } 4810458Sandreas.hansson@arm.com return *x; 4910458Sandreas.hansson@arm.com} 5010458Sandreas.hansson@arm.com// Resets the values of the static matrices returned by get_cm()/get_rm() 5110458Sandreas.hansson@arm.comvoid reset_refs() { 5210458Sandreas.hansson@arm.com reset_ref(get_cm()); 5310458Sandreas.hansson@arm.com reset_ref(get_rm()); 5410458Sandreas.hansson@arm.com} 5510458Sandreas.hansson@arm.com 5610458Sandreas.hansson@arm.com// Returns element 2,1 from a matrix (used to test copy/nocopy) 5710458Sandreas.hansson@arm.comdouble get_elem(Eigen::Ref<const Eigen::MatrixXd> m) { return m(2, 1); }; 5810458Sandreas.hansson@arm.com 5910458Sandreas.hansson@arm.com 6010458Sandreas.hansson@arm.com// Returns a matrix with 10*r + 100*c added to each matrix element (to help test that the matrix 6110458Sandreas.hansson@arm.com// reference is referencing rows/columns correctly). 6210458Sandreas.hansson@arm.comtemplate <typename MatrixArgType> Eigen::MatrixXd adjust_matrix(MatrixArgType m) { 6310458Sandreas.hansson@arm.com Eigen::MatrixXd ret(m); 6410905Sandreas.sandberg@arm.com for (int c = 0; c < m.cols(); c++) for (int r = 0; r < m.rows(); r++) 6510458Sandreas.hansson@arm.com ret(r, c) += 10*r + 100*c; 6610458Sandreas.hansson@arm.com return ret; 6710458Sandreas.hansson@arm.com} 6810458Sandreas.hansson@arm.com 6910458Sandreas.hansson@arm.comstruct CustomOperatorNew { 7010458Sandreas.hansson@arm.com CustomOperatorNew() = default; 7110458Sandreas.hansson@arm.com 7210458Sandreas.hansson@arm.com Eigen::Matrix4d a = Eigen::Matrix4d::Zero(); 7310458Sandreas.hansson@arm.com Eigen::Matrix4d b = Eigen::Matrix4d::Identity(); 7410458Sandreas.hansson@arm.com 7510458Sandreas.hansson@arm.com EIGEN_MAKE_ALIGNED_OPERATOR_NEW; 7610458Sandreas.hansson@arm.com}; 7710458Sandreas.hansson@arm.com 7810458Sandreas.hansson@arm.comTEST_SUBMODULE(eigen, m) { 7910458Sandreas.hansson@arm.com using FixedMatrixR = Eigen::Matrix<float, 5, 6, Eigen::RowMajor>; 8010458Sandreas.hansson@arm.com using FixedMatrixC = Eigen::Matrix<float, 5, 6>; 8110458Sandreas.hansson@arm.com using DenseMatrixR = Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>; 8210458Sandreas.hansson@arm.com using DenseMatrixC = Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic>; 8310458Sandreas.hansson@arm.com using FourRowMatrixC = Eigen::Matrix<float, 4, Eigen::Dynamic>; 8410458Sandreas.hansson@arm.com using FourColMatrixC = Eigen::Matrix<float, Eigen::Dynamic, 4>; 8510458Sandreas.hansson@arm.com using FourRowMatrixR = Eigen::Matrix<float, 4, Eigen::Dynamic>; 8610458Sandreas.hansson@arm.com using FourColMatrixR = Eigen::Matrix<float, Eigen::Dynamic, 4>; 8710458Sandreas.hansson@arm.com using SparseMatrixR = Eigen::SparseMatrix<float, Eigen::RowMajor>; 8810458Sandreas.hansson@arm.com using SparseMatrixC = Eigen::SparseMatrix<float>; 8910458Sandreas.hansson@arm.com 9010458Sandreas.hansson@arm.com m.attr("have_eigen") = true; 9110458Sandreas.hansson@arm.com 9210458Sandreas.hansson@arm.com // various tests 9310458Sandreas.hansson@arm.com m.def("double_col", [](const Eigen::VectorXf &x) -> Eigen::VectorXf { return 2.0f * x; }); 9410458Sandreas.hansson@arm.com m.def("double_row", [](const Eigen::RowVectorXf &x) -> Eigen::RowVectorXf { return 2.0f * x; }); 9510458Sandreas.hansson@arm.com m.def("double_complex", [](const Eigen::VectorXcf &x) -> Eigen::VectorXcf { return 2.0f * x; }); 9610458Sandreas.hansson@arm.com m.def("double_threec", [](py::EigenDRef<Eigen::Vector3f> x) { x *= 2; }); 9710458Sandreas.hansson@arm.com m.def("double_threer", [](py::EigenDRef<Eigen::RowVector3f> x) { x *= 2; }); 9810458Sandreas.hansson@arm.com m.def("double_mat_cm", [](Eigen::MatrixXf x) -> Eigen::MatrixXf { return 2.0f * x; }); 9910458Sandreas.hansson@arm.com m.def("double_mat_rm", [](DenseMatrixR x) -> DenseMatrixR { return 2.0f * x; }); 10010458Sandreas.hansson@arm.com 10110458Sandreas.hansson@arm.com // test_eigen_ref_to_python 10210458Sandreas.hansson@arm.com // Different ways of passing via Eigen::Ref; the first and second are the Eigen-recommended 10310458Sandreas.hansson@arm.com m.def("cholesky1", [](Eigen::Ref<MatrixXdR> x) -> Eigen::MatrixXd { return x.llt().matrixL(); }); 10410458Sandreas.hansson@arm.com m.def("cholesky2", [](const Eigen::Ref<const MatrixXdR> &x) -> Eigen::MatrixXd { return x.llt().matrixL(); }); 10510458Sandreas.hansson@arm.com m.def("cholesky3", [](const Eigen::Ref<MatrixXdR> &x) -> Eigen::MatrixXd { return x.llt().matrixL(); }); 10610458Sandreas.hansson@arm.com m.def("cholesky4", [](Eigen::Ref<const MatrixXdR> x) -> Eigen::MatrixXd { return x.llt().matrixL(); }); 10710458Sandreas.hansson@arm.com 10810458Sandreas.hansson@arm.com // test_eigen_ref_mutators 10910458Sandreas.hansson@arm.com // Mutators: these add some value to the given element using Eigen, but Eigen should be mapping into 11010458Sandreas.hansson@arm.com // the numpy array data and so the result should show up there. There are three versions: one that 11110458Sandreas.hansson@arm.com // works on a contiguous-row matrix (numpy's default), one for a contiguous-column matrix, and one 11210458Sandreas.hansson@arm.com // for any matrix. 11310458Sandreas.hansson@arm.com auto add_rm = [](Eigen::Ref<MatrixXdR> x, int r, int c, double v) { x(r,c) += v; }; 11410458Sandreas.hansson@arm.com auto add_cm = [](Eigen::Ref<Eigen::MatrixXd> x, int r, int c, double v) { x(r,c) += v; }; 11510458Sandreas.hansson@arm.com 11610458Sandreas.hansson@arm.com // Mutators (Eigen maps into numpy variables): 11710458Sandreas.hansson@arm.com m.def("add_rm", add_rm); // Only takes row-contiguous 11810458Sandreas.hansson@arm.com m.def("add_cm", add_cm); // Only takes column-contiguous 11910458Sandreas.hansson@arm.com // Overloaded versions that will accept either row or column contiguous: 12010458Sandreas.hansson@arm.com m.def("add1", add_rm); 12110458Sandreas.hansson@arm.com m.def("add1", add_cm); 12210458Sandreas.hansson@arm.com m.def("add2", add_cm); 12310458Sandreas.hansson@arm.com m.def("add2", add_rm); 12410458Sandreas.hansson@arm.com // This one accepts a matrix of any stride: 12510458Sandreas.hansson@arm.com m.def("add_any", [](py::EigenDRef<Eigen::MatrixXd> x, int r, int c, double v) { x(r,c) += v; }); 12610458Sandreas.hansson@arm.com 12710458Sandreas.hansson@arm.com // Return mutable references (numpy maps into eigen variables) 12810458Sandreas.hansson@arm.com m.def("get_cm_ref", []() { return Eigen::Ref<Eigen::MatrixXd>(get_cm()); }); 12910458Sandreas.hansson@arm.com m.def("get_rm_ref", []() { return Eigen::Ref<MatrixXdR>(get_rm()); }); 13010458Sandreas.hansson@arm.com // The same references, but non-mutable (numpy maps into eigen variables, but is !writeable) 13110458Sandreas.hansson@arm.com m.def("get_cm_const_ref", []() { return Eigen::Ref<const Eigen::MatrixXd>(get_cm()); }); 13210458Sandreas.hansson@arm.com m.def("get_rm_const_ref", []() { return Eigen::Ref<const MatrixXdR>(get_rm()); }); 13310458Sandreas.hansson@arm.com 13410458Sandreas.hansson@arm.com m.def("reset_refs", reset_refs); // Restores get_{cm,rm}_ref to original values 13510458Sandreas.hansson@arm.com 13610458Sandreas.hansson@arm.com // Increments and returns ref to (same) matrix 13710458Sandreas.hansson@arm.com m.def("incr_matrix", [](Eigen::Ref<Eigen::MatrixXd> m, double v) { 13810458Sandreas.hansson@arm.com m += Eigen::MatrixXd::Constant(m.rows(), m.cols(), v); 13910458Sandreas.hansson@arm.com return m; 14010458Sandreas.hansson@arm.com }, py::return_value_policy::reference); 14110458Sandreas.hansson@arm.com 14210458Sandreas.hansson@arm.com // Same, but accepts a matrix of any strides 14310458Sandreas.hansson@arm.com m.def("incr_matrix_any", [](py::EigenDRef<Eigen::MatrixXd> m, double v) { 14410458Sandreas.hansson@arm.com m += Eigen::MatrixXd::Constant(m.rows(), m.cols(), v); 14510458Sandreas.hansson@arm.com return m; 14610458Sandreas.hansson@arm.com }, py::return_value_policy::reference); 14710458Sandreas.hansson@arm.com 14810458Sandreas.hansson@arm.com // Returns an eigen slice of even rows 14910458Sandreas.hansson@arm.com m.def("even_rows", [](py::EigenDRef<Eigen::MatrixXd> m) { 15010458Sandreas.hansson@arm.com return py::EigenDMap<Eigen::MatrixXd>( 15110458Sandreas.hansson@arm.com m.data(), (m.rows() + 1) / 2, m.cols(), 15210458Sandreas.hansson@arm.com py::EigenDStride(m.outerStride(), 2 * m.innerStride())); 15310458Sandreas.hansson@arm.com }, py::return_value_policy::reference); 15410458Sandreas.hansson@arm.com 15510458Sandreas.hansson@arm.com // Returns an eigen slice of even columns 15610458Sandreas.hansson@arm.com m.def("even_cols", [](py::EigenDRef<Eigen::MatrixXd> m) { 15710458Sandreas.hansson@arm.com return py::EigenDMap<Eigen::MatrixXd>( 15810458Sandreas.hansson@arm.com m.data(), m.rows(), (m.cols() + 1) / 2, 15910458Sandreas.hansson@arm.com py::EigenDStride(2 * m.outerStride(), m.innerStride())); 16010458Sandreas.hansson@arm.com }, py::return_value_policy::reference); 16110458Sandreas.hansson@arm.com 16210458Sandreas.hansson@arm.com // Returns diagonals: a vector-like object with an inner stride != 1 16310458Sandreas.hansson@arm.com m.def("diagonal", [](const Eigen::Ref<const Eigen::MatrixXd> &x) { return x.diagonal(); }); 16410458Sandreas.hansson@arm.com m.def("diagonal_1", [](const Eigen::Ref<const Eigen::MatrixXd> &x) { return x.diagonal<1>(); }); 16510458Sandreas.hansson@arm.com m.def("diagonal_n", [](const Eigen::Ref<const Eigen::MatrixXd> &x, int index) { return x.diagonal(index); }); 16610458Sandreas.hansson@arm.com 16710458Sandreas.hansson@arm.com // Return a block of a matrix (gives non-standard strides) 16810458Sandreas.hansson@arm.com m.def("block", [](const Eigen::Ref<const Eigen::MatrixXd> &x, int start_row, int start_col, int block_rows, int block_cols) { 16910458Sandreas.hansson@arm.com return x.block(start_row, start_col, block_rows, block_cols); 17010458Sandreas.hansson@arm.com }); 17110458Sandreas.hansson@arm.com 17210458Sandreas.hansson@arm.com // test_eigen_return_references, test_eigen_keepalive 17310458Sandreas.hansson@arm.com // return value referencing/copying tests: 17410458Sandreas.hansson@arm.com class ReturnTester { 17510458Sandreas.hansson@arm.com Eigen::MatrixXd mat = create(); 17610458Sandreas.hansson@arm.com public: 17710458Sandreas.hansson@arm.com ReturnTester() { print_created(this); } 17810458Sandreas.hansson@arm.com ~ReturnTester() { print_destroyed(this); } 17910458Sandreas.hansson@arm.com static Eigen::MatrixXd create() { return Eigen::MatrixXd::Ones(10, 10); } 18010458Sandreas.hansson@arm.com static const Eigen::MatrixXd createConst() { return Eigen::MatrixXd::Ones(10, 10); } 18110458Sandreas.hansson@arm.com Eigen::MatrixXd &get() { return mat; } 18210458Sandreas.hansson@arm.com Eigen::MatrixXd *getPtr() { return &mat; } 18310458Sandreas.hansson@arm.com const Eigen::MatrixXd &view() { return mat; } 18410458Sandreas.hansson@arm.com const Eigen::MatrixXd *viewPtr() { return &mat; } 18510458Sandreas.hansson@arm.com Eigen::Ref<Eigen::MatrixXd> ref() { return mat; } 18610458Sandreas.hansson@arm.com Eigen::Ref<const Eigen::MatrixXd> refConst() { return mat; } 18710458Sandreas.hansson@arm.com Eigen::Block<Eigen::MatrixXd> block(int r, int c, int nrow, int ncol) { return mat.block(r, c, nrow, ncol); } 18810458Sandreas.hansson@arm.com Eigen::Block<const Eigen::MatrixXd> blockConst(int r, int c, int nrow, int ncol) const { return mat.block(r, c, nrow, ncol); } 18910458Sandreas.hansson@arm.com py::EigenDMap<Eigen::Matrix2d> corners() { return py::EigenDMap<Eigen::Matrix2d>(mat.data(), 19010458Sandreas.hansson@arm.com py::EigenDStride(mat.outerStride() * (mat.outerSize()-1), mat.innerStride() * (mat.innerSize()-1))); } 19110458Sandreas.hansson@arm.com py::EigenDMap<const Eigen::Matrix2d> cornersConst() const { return py::EigenDMap<const Eigen::Matrix2d>(mat.data(), 19210458Sandreas.hansson@arm.com py::EigenDStride(mat.outerStride() * (mat.outerSize()-1), mat.innerStride() * (mat.innerSize()-1))); } 19310458Sandreas.hansson@arm.com }; 19410458Sandreas.hansson@arm.com using rvp = py::return_value_policy; 19510458Sandreas.hansson@arm.com py::class_<ReturnTester>(m, "ReturnTester") 19610458Sandreas.hansson@arm.com .def(py::init<>()) 19710458Sandreas.hansson@arm.com .def_static("create", &ReturnTester::create) 19810458Sandreas.hansson@arm.com .def_static("create_const", &ReturnTester::createConst) 19910458Sandreas.hansson@arm.com .def("get", &ReturnTester::get, rvp::reference_internal) 20010458Sandreas.hansson@arm.com .def("get_ptr", &ReturnTester::getPtr, rvp::reference_internal) 20110458Sandreas.hansson@arm.com .def("view", &ReturnTester::view, rvp::reference_internal) 20210458Sandreas.hansson@arm.com .def("view_ptr", &ReturnTester::view, rvp::reference_internal) 20310458Sandreas.hansson@arm.com .def("copy_get", &ReturnTester::get) // Default rvp: copy 20410458Sandreas.hansson@arm.com .def("copy_view", &ReturnTester::view) // " 20510458Sandreas.hansson@arm.com .def("ref", &ReturnTester::ref) // Default for Ref is to reference 20610458Sandreas.hansson@arm.com .def("ref_const", &ReturnTester::refConst) // Likewise, but const 20710458Sandreas.hansson@arm.com .def("ref_safe", &ReturnTester::ref, rvp::reference_internal) 20810458Sandreas.hansson@arm.com .def("ref_const_safe", &ReturnTester::refConst, rvp::reference_internal) 20910458Sandreas.hansson@arm.com .def("copy_ref", &ReturnTester::ref, rvp::copy) 21010458Sandreas.hansson@arm.com .def("copy_ref_const", &ReturnTester::refConst, rvp::copy) 21110458Sandreas.hansson@arm.com .def("block", &ReturnTester::block) 21210458Sandreas.hansson@arm.com .def("block_safe", &ReturnTester::block, rvp::reference_internal) 21310458Sandreas.hansson@arm.com .def("block_const", &ReturnTester::blockConst, rvp::reference_internal) 21410458Sandreas.hansson@arm.com .def("copy_block", &ReturnTester::block, rvp::copy) 21510458Sandreas.hansson@arm.com .def("corners", &ReturnTester::corners, rvp::reference_internal) 21610458Sandreas.hansson@arm.com .def("corners_const", &ReturnTester::cornersConst, rvp::reference_internal) 21710458Sandreas.hansson@arm.com ; 21810458Sandreas.hansson@arm.com 21910458Sandreas.hansson@arm.com // test_special_matrix_objects 22010458Sandreas.hansson@arm.com // Returns a DiagonalMatrix with diagonal (1,2,3,...) 22110458Sandreas.hansson@arm.com m.def("incr_diag", [](int k) { 22210458Sandreas.hansson@arm.com Eigen::DiagonalMatrix<int, Eigen::Dynamic> m(k); 22310458Sandreas.hansson@arm.com for (int i = 0; i < k; i++) m.diagonal()[i] = i+1; 22410458Sandreas.hansson@arm.com return m; 22510458Sandreas.hansson@arm.com }); 22610458Sandreas.hansson@arm.com 22710458Sandreas.hansson@arm.com // Returns a SelfAdjointView referencing the lower triangle of m 22810458Sandreas.hansson@arm.com m.def("symmetric_lower", [](const Eigen::MatrixXi &m) { 22910458Sandreas.hansson@arm.com return m.selfadjointView<Eigen::Lower>(); 23010458Sandreas.hansson@arm.com }); 23110458Sandreas.hansson@arm.com // Returns a SelfAdjointView referencing the lower triangle of m 23210458Sandreas.hansson@arm.com m.def("symmetric_upper", [](const Eigen::MatrixXi &m) { 23310458Sandreas.hansson@arm.com return m.selfadjointView<Eigen::Upper>(); 23410458Sandreas.hansson@arm.com }); 23510458Sandreas.hansson@arm.com 23610458Sandreas.hansson@arm.com // Test matrix for various functions below. 23710458Sandreas.hansson@arm.com Eigen::MatrixXf mat(5, 6); 23810458Sandreas.hansson@arm.com mat << 0, 3, 0, 0, 0, 11, 23910458Sandreas.hansson@arm.com 22, 0, 0, 0, 17, 11, 24010458Sandreas.hansson@arm.com 7, 5, 0, 1, 0, 11, 24110458Sandreas.hansson@arm.com 0, 0, 0, 0, 0, 11, 24210458Sandreas.hansson@arm.com 0, 0, 14, 0, 8, 11; 24310458Sandreas.hansson@arm.com 24410458Sandreas.hansson@arm.com // test_fixed, and various other tests 24510458Sandreas.hansson@arm.com m.def("fixed_r", [mat]() -> FixedMatrixR { return FixedMatrixR(mat); }); 24610458Sandreas.hansson@arm.com m.def("fixed_r_const", [mat]() -> const FixedMatrixR { return FixedMatrixR(mat); }); 24710458Sandreas.hansson@arm.com m.def("fixed_c", [mat]() -> FixedMatrixC { return FixedMatrixC(mat); }); 24810458Sandreas.hansson@arm.com m.def("fixed_copy_r", [](const FixedMatrixR &m) -> FixedMatrixR { return m; }); 24910458Sandreas.hansson@arm.com m.def("fixed_copy_c", [](const FixedMatrixC &m) -> FixedMatrixC { return m; }); 25010458Sandreas.hansson@arm.com // test_mutator_descriptors 25110458Sandreas.hansson@arm.com m.def("fixed_mutator_r", [](Eigen::Ref<FixedMatrixR>) {}); 25210458Sandreas.hansson@arm.com m.def("fixed_mutator_c", [](Eigen::Ref<FixedMatrixC>) {}); 25310458Sandreas.hansson@arm.com m.def("fixed_mutator_a", [](py::EigenDRef<FixedMatrixC>) {}); 25410458Sandreas.hansson@arm.com // test_dense 25510458Sandreas.hansson@arm.com m.def("dense_r", [mat]() -> DenseMatrixR { return DenseMatrixR(mat); }); 25610458Sandreas.hansson@arm.com m.def("dense_c", [mat]() -> DenseMatrixC { return DenseMatrixC(mat); }); 25710458Sandreas.hansson@arm.com m.def("dense_copy_r", [](const DenseMatrixR &m) -> DenseMatrixR { return m; }); 25810458Sandreas.hansson@arm.com m.def("dense_copy_c", [](const DenseMatrixC &m) -> DenseMatrixC { return m; }); 25910458Sandreas.hansson@arm.com // test_sparse, test_sparse_signature 26010458Sandreas.hansson@arm.com m.def("sparse_r", [mat]() -> SparseMatrixR { return Eigen::SparseView<Eigen::MatrixXf>(mat); }); 26110458Sandreas.hansson@arm.com m.def("sparse_c", [mat]() -> SparseMatrixC { return Eigen::SparseView<Eigen::MatrixXf>(mat); }); 26210458Sandreas.hansson@arm.com m.def("sparse_copy_r", [](const SparseMatrixR &m) -> SparseMatrixR { return m; }); 26310458Sandreas.hansson@arm.com m.def("sparse_copy_c", [](const SparseMatrixC &m) -> SparseMatrixC { return m; }); 26410458Sandreas.hansson@arm.com // test_partially_fixed 26510458Sandreas.hansson@arm.com m.def("partial_copy_four_rm_r", [](const FourRowMatrixR &m) -> FourRowMatrixR { return m; }); 26610458Sandreas.hansson@arm.com m.def("partial_copy_four_rm_c", [](const FourColMatrixR &m) -> FourColMatrixR { return m; }); 26710458Sandreas.hansson@arm.com m.def("partial_copy_four_cm_r", [](const FourRowMatrixC &m) -> FourRowMatrixC { return m; }); 26810458Sandreas.hansson@arm.com m.def("partial_copy_four_cm_c", [](const FourColMatrixC &m) -> FourColMatrixC { return m; }); 26910458Sandreas.hansson@arm.com 27010458Sandreas.hansson@arm.com // test_cpp_casting 27110458Sandreas.hansson@arm.com // Test that we can cast a numpy object to a Eigen::MatrixXd explicitly 27210458Sandreas.hansson@arm.com m.def("cpp_copy", [](py::handle m) { return m.cast<Eigen::MatrixXd>()(1, 0); }); 27310458Sandreas.hansson@arm.com m.def("cpp_ref_c", [](py::handle m) { return m.cast<Eigen::Ref<Eigen::MatrixXd>>()(1, 0); }); 27410458Sandreas.hansson@arm.com m.def("cpp_ref_r", [](py::handle m) { return m.cast<Eigen::Ref<MatrixXdR>>()(1, 0); }); 27510458Sandreas.hansson@arm.com m.def("cpp_ref_any", [](py::handle m) { return m.cast<py::EigenDRef<Eigen::MatrixXd>>()(1, 0); }); 27610458Sandreas.hansson@arm.com 27710458Sandreas.hansson@arm.com 27810458Sandreas.hansson@arm.com // test_nocopy_wrapper 27910458Sandreas.hansson@arm.com // Test that we can prevent copying into an argument that would normally copy: First a version 28010458Sandreas.hansson@arm.com // that would allow copying (if types or strides don't match) for comparison: 28110458Sandreas.hansson@arm.com m.def("get_elem", &get_elem); 28210458Sandreas.hansson@arm.com // Now this alternative that calls the tells pybind to fail rather than copy: 28310458Sandreas.hansson@arm.com m.def("get_elem_nocopy", [](Eigen::Ref<const Eigen::MatrixXd> m) -> double { return get_elem(m); }, 28410458Sandreas.hansson@arm.com py::arg().noconvert()); 28510458Sandreas.hansson@arm.com // Also test a row-major-only no-copy const ref: 28610912Sandreas.sandberg@arm.com m.def("get_elem_rm_nocopy", [](Eigen::Ref<const Eigen::Matrix<long, -1, -1, Eigen::RowMajor>> &m) -> long { return m(2, 1); }, 28710458Sandreas.hansson@arm.com py::arg().noconvert()); 28810458Sandreas.hansson@arm.com 28910458Sandreas.hansson@arm.com // test_issue738 29010458Sandreas.hansson@arm.com // Issue #738: 1xN or Nx1 2D matrices were neither accepted nor properly copied with an 29110458Sandreas.hansson@arm.com // incompatible stride value on the length-1 dimension--but that should be allowed (without 29210458Sandreas.hansson@arm.com // requiring a copy!) because the stride value can be safely ignored on a size-1 dimension. 29310458Sandreas.hansson@arm.com m.def("iss738_f1", &adjust_matrix<const Eigen::Ref<const Eigen::MatrixXd> &>, py::arg().noconvert()); 29410458Sandreas.hansson@arm.com m.def("iss738_f2", &adjust_matrix<const Eigen::Ref<const Eigen::Matrix<double, -1, -1, Eigen::RowMajor>> &>, py::arg().noconvert()); 29510905Sandreas.sandberg@arm.com 29610458Sandreas.hansson@arm.com // test_issue1105 29710458Sandreas.hansson@arm.com // Issue #1105: when converting from a numpy two-dimensional (Nx1) or (1xN) value into a dense 29810458Sandreas.hansson@arm.com // eigen Vector or RowVector, the argument would fail to load because the numpy copy would fail: 29910458Sandreas.hansson@arm.com // numpy won't broadcast a Nx1 into a 1-dimensional vector. 30010458Sandreas.hansson@arm.com m.def("iss1105_col", [](Eigen::VectorXd) { return true; }); 30110458Sandreas.hansson@arm.com m.def("iss1105_row", [](Eigen::RowVectorXd) { return true; }); 30210458Sandreas.hansson@arm.com 30310458Sandreas.hansson@arm.com // test_named_arguments 30410458Sandreas.hansson@arm.com // Make sure named arguments are working properly: 30510458Sandreas.hansson@arm.com m.def("matrix_multiply", [](const py::EigenDRef<const Eigen::MatrixXd> A, const py::EigenDRef<const Eigen::MatrixXd> B) 30610458Sandreas.hansson@arm.com -> Eigen::MatrixXd { 30710458Sandreas.hansson@arm.com if (A.cols() != B.rows()) throw std::domain_error("Nonconformable matrices!"); 30810458Sandreas.hansson@arm.com return A * B; 30910458Sandreas.hansson@arm.com }, py::arg("A"), py::arg("B")); 31010458Sandreas.hansson@arm.com 31110458Sandreas.hansson@arm.com // test_custom_operator_new 31210458Sandreas.hansson@arm.com py::class_<CustomOperatorNew>(m, "CustomOperatorNew") 31310458Sandreas.hansson@arm.com .def(py::init<>()) 31410458Sandreas.hansson@arm.com .def_readonly("a", &CustomOperatorNew::a) 315 .def_readonly("b", &CustomOperatorNew::b); 316 317 // test_eigen_ref_life_support 318 // In case of a failure (the caster's temp array does not live long enough), creating 319 // a new array (np.ones(10)) increases the chances that the temp array will be garbage 320 // collected and/or that its memory will be overridden with different values. 321 m.def("get_elem_direct", [](Eigen::Ref<const Eigen::VectorXd> v) { 322 py::module::import("numpy").attr("ones")(10); 323 return v(5); 324 }); 325 m.def("get_elem_indirect", [](std::vector<Eigen::Ref<const Eigen::VectorXd>> v) { 326 py::module::import("numpy").attr("ones")(10); 327 return v[0](5); 328 }); 329} 330