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101 lines
2.5 KiB
101 lines
2.5 KiB
2 years ago
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2015 Benoit Steiner <benoit.steiner.goog@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "main.h"
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#include <limits>
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#include <map>
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#include <Eigen/Dense>
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#include <Eigen/CXX11/Tensor>
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using Eigen::Tensor;
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template <int DataLayout>
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static void test_map_as_index()
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{
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#ifdef EIGEN_HAS_SFINAE
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Tensor<float, 4, DataLayout> tensor(2, 3, 5, 7);
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tensor.setRandom();
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using NormalIndex = DSizes<ptrdiff_t, 4>;
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using CustomIndex = std::map<ptrdiff_t, ptrdiff_t>;
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CustomIndex coeffC;
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coeffC[0] = 1;
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coeffC[1] = 2;
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coeffC[2] = 4;
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coeffC[3] = 1;
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NormalIndex coeff(1,2,4,1);
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VERIFY_IS_EQUAL(tensor.coeff(coeffC), tensor.coeff(coeff));
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VERIFY_IS_EQUAL(tensor.coeffRef(coeffC), tensor.coeffRef(coeff));
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#endif
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}
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template <int DataLayout>
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static void test_matrix_as_index()
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{
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#ifdef EIGEN_HAS_SFINAE
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Tensor<float, 4, DataLayout> tensor(2, 3, 5, 7);
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tensor.setRandom();
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using NormalIndex = DSizes<ptrdiff_t, 4>;
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using CustomIndex = Matrix<unsigned int, 4, 1>;
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CustomIndex coeffC(1,2,4,1);
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NormalIndex coeff(1,2,4,1);
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VERIFY_IS_EQUAL(tensor.coeff(coeffC), tensor.coeff(coeff));
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VERIFY_IS_EQUAL(tensor.coeffRef(coeffC), tensor.coeffRef(coeff));
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#endif
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}
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template <int DataLayout>
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static void test_varlist_as_index()
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{
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#ifdef EIGEN_HAS_SFINAE
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Tensor<float, 4, DataLayout> tensor(2, 3, 5, 7);
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tensor.setRandom();
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DSizes<ptrdiff_t, 4> coeff(1,2,4,1);
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VERIFY_IS_EQUAL(tensor.coeff({1,2,4,1}), tensor.coeff(coeff));
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VERIFY_IS_EQUAL(tensor.coeffRef({1,2,4,1}), tensor.coeffRef(coeff));
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#endif
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}
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template <int DataLayout>
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static void test_sizes_as_index()
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{
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#ifdef EIGEN_HAS_SFINAE
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Tensor<float, 4, DataLayout> tensor(2, 3, 5, 7);
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tensor.setRandom();
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DSizes<ptrdiff_t, 4> coeff(1,2,4,1);
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Sizes<1,2,4,1> coeffC;
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VERIFY_IS_EQUAL(tensor.coeff(coeffC), tensor.coeff(coeff));
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VERIFY_IS_EQUAL(tensor.coeffRef(coeffC), tensor.coeffRef(coeff));
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#endif
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}
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EIGEN_DECLARE_TEST(cxx11_tensor_custom_index) {
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test_map_as_index<ColMajor>();
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test_map_as_index<RowMajor>();
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test_matrix_as_index<ColMajor>();
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test_matrix_as_index<RowMajor>();
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test_varlist_as_index<ColMajor>();
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test_varlist_as_index<RowMajor>();
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test_sizes_as_index<ColMajor>();
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test_sizes_as_index<RowMajor>();
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}
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