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82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
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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) 2017 Viktor Csomor <viktor.csomor@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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#include <utility>
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using Eigen::Tensor;
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using Eigen::RowMajor;
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static void calc_indices(int i, int& x, int& y, int& z)
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{
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x = i / 4;
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y = (i % 4) / 2;
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z = i % 2;
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}
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static void test_move()
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{
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int x;
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int y;
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int z;
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Tensor<int,3> tensor1(2, 2, 2);
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Tensor<int,3,RowMajor> tensor2(2, 2, 2);
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for (int i = 0; i < 8; i++)
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{
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calc_indices(i, x, y, z);
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tensor1(x,y,z) = i;
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tensor2(x,y,z) = 2 * i;
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}
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// Invokes the move constructor.
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Tensor<int,3> moved_tensor1 = std::move(tensor1);
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Tensor<int,3,RowMajor> moved_tensor2 = std::move(tensor2);
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VERIFY_IS_EQUAL(tensor1.size(), 0);
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VERIFY_IS_EQUAL(tensor2.size(), 0);
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for (int i = 0; i < 8; i++)
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{
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calc_indices(i, x, y, z);
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VERIFY_IS_EQUAL(moved_tensor1(x,y,z), i);
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VERIFY_IS_EQUAL(moved_tensor2(x,y,z), 2 * i);
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}
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Tensor<int,3> moved_tensor3(2,2,2);
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Tensor<int,3,RowMajor> moved_tensor4(2,2,2);
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moved_tensor3.setZero();
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moved_tensor4.setZero();
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// Invokes the move assignment operator.
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moved_tensor3 = std::move(moved_tensor1);
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moved_tensor4 = std::move(moved_tensor2);
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VERIFY_IS_EQUAL(moved_tensor1.size(), 8);
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VERIFY_IS_EQUAL(moved_tensor2.size(), 8);
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for (int i = 0; i < 8; i++)
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{
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calc_indices(i, x, y, z);
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VERIFY_IS_EQUAL(moved_tensor1(x,y,z), 0);
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VERIFY_IS_EQUAL(moved_tensor2(x,y,z), 0);
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VERIFY_IS_EQUAL(moved_tensor3(x,y,z), i);
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VERIFY_IS_EQUAL(moved_tensor4(x,y,z), 2 * i);
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}
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}
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EIGEN_DECLARE_TEST(cxx11_tensor_move)
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{
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CALL_SUBTEST(test_move());
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}
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