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105 lines
2.4 KiB
105 lines
2.4 KiB
// 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) 2014 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 <Eigen/CXX11/Tensor>
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using Eigen::Tensor;
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using Eigen::RowMajor;
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static void test_assign()
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{
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float data1[6];
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TensorMap<Tensor<const float, 2>> mat1(data1, 2, 3);
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float data2[6];
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const TensorMap<Tensor<float, 2>> mat2(data2, 2, 3);
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for (int i = 0; i < 6; ++i) {
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data1[i] = i;
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data2[i] = -i;
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}
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Tensor<float, 2> rslt1;
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rslt1 = mat1;
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Tensor<float, 2> rslt2;
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rslt2 = mat2;
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Tensor<float, 2> rslt3 = mat1;
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Tensor<float, 2> rslt4 = mat2;
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Tensor<float, 2> rslt5(mat1);
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Tensor<float, 2> rslt6(mat2);
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for (int i = 0; i < 2; ++i) {
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for (int j = 0; j < 3; ++j) {
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VERIFY_IS_APPROX(rslt1(i,j), static_cast<float>(i + 2*j));
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VERIFY_IS_APPROX(rslt2(i,j), static_cast<float>(-i - 2*j));
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VERIFY_IS_APPROX(rslt3(i,j), static_cast<float>(i + 2*j));
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VERIFY_IS_APPROX(rslt4(i,j), static_cast<float>(-i - 2*j));
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VERIFY_IS_APPROX(rslt5(i,j), static_cast<float>(i + 2*j));
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VERIFY_IS_APPROX(rslt6(i,j), static_cast<float>(-i - 2*j));
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}
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}
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}
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static void test_plus()
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{
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float data1[6];
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TensorMap<Tensor<const float, 2>> mat1(data1, 2, 3);
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float data2[6];
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TensorMap<Tensor<float, 2>> mat2(data2, 2, 3);
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for (int i = 0; i < 6; ++i) {
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data1[i] = i;
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data2[i] = -i;
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}
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Tensor<float, 2> sum1;
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sum1 = mat1 + mat2;
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Tensor<float, 2> sum2;
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sum2 = mat2 + mat1;
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for (int i = 0; i < 2; ++i) {
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for (int j = 0; j < 3; ++j) {
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VERIFY_IS_APPROX(sum1(i,j), 0.0f);
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VERIFY_IS_APPROX(sum2(i,j), 0.0f);
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}
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}
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}
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static void test_plus_equal()
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{
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float data1[6];
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TensorMap<Tensor<const float, 2>> mat1(data1, 2, 3);
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float data2[6];
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TensorMap<Tensor<float, 2>> mat2(data2, 2, 3);
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for (int i = 0; i < 6; ++i) {
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data1[i] = i;
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data2[i] = -i;
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}
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mat2 += mat1;
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for (int i = 0; i < 2; ++i) {
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for (int j = 0; j < 3; ++j) {
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VERIFY_IS_APPROX(mat2(i,j), 0.0f);
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}
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}
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}
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EIGEN_DECLARE_TEST(cxx11_tensor_of_const_values)
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{
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CALL_SUBTEST(test_assign());
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CALL_SUBTEST(test_plus());
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CALL_SUBTEST(test_plus_equal());
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}
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