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author | Viktor Csomor <viktor.csomor@gmail.com> | 2018-02-07 19:10:54 +0100 |
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committer | Viktor Csomor <viktor.csomor@gmail.com> | 2018-02-07 19:10:54 +0100 |
commit | 000840cae0568da3c9148ddfe18b2af5b3e24067 (patch) | |
tree | b2f7913976f50b6b2387f1a88f45e5a963b53112 /unsupported/test/cxx11_tensor_move.cpp | |
parent | 3a2dc3869ed77cb6eca2beaad5c0af7d5134f15c (diff) |
Added a move constructor and move assignment operator to Tensor and wrote some tests.
Diffstat (limited to 'unsupported/test/cxx11_tensor_move.cpp')
-rw-r--r-- | unsupported/test/cxx11_tensor_move.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/unsupported/test/cxx11_tensor_move.cpp b/unsupported/test/cxx11_tensor_move.cpp new file mode 100644 index 000000000..0ab2b7786 --- /dev/null +++ b/unsupported/test/cxx11_tensor_move.cpp @@ -0,0 +1,81 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2017 Viktor Csomor <viktor.csomor@gmail.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include "main.h" + +#include <Eigen/CXX11/Tensor> +#include <utility> + +using Eigen::Tensor; +using Eigen::RowMajor; + +static void calc_indices(int i, int& x, int& y, int& z) +{ + x = i / 4; + y = (i % 4) / 2; + z = i % 2; +} + +static void test_move() +{ + int x; + int y; + int z; + + Tensor<int,3> tensor1(2, 2, 2); + Tensor<int,3,RowMajor> tensor2(2, 2, 2); + + for (int i = 0; i < 8; i++) + { + calc_indices(i, x, y, z); + tensor1(x,y,z) = i; + tensor2(x,y,z) = 2 * i; + } + + // Invokes the move constructor. + Tensor<int,3> moved_tensor1 = std::move(tensor1); + Tensor<int,3,RowMajor> moved_tensor2 = std::move(tensor2); + + VERIFY_IS_EQUAL(tensor1.size(), 0); + VERIFY_IS_EQUAL(tensor2.size(), 0); + + for (int i = 0; i < 8; i++) + { + calc_indices(i, x, y, z); + VERIFY_IS_EQUAL(moved_tensor1(x,y,z), i); + VERIFY_IS_EQUAL(moved_tensor2(x,y,z), 2 * i); + } + + Tensor<int,3> moved_tensor3(2,2,2); + Tensor<int,3,RowMajor> moved_tensor4(2,2,2); + + moved_tensor3.setZero(); + moved_tensor4.setZero(); + + // Invokes the move assignment operator. + moved_tensor3 = std::move(moved_tensor1); + moved_tensor4 = std::move(moved_tensor2); + + VERIFY_IS_EQUAL(moved_tensor1.size(), 8); + VERIFY_IS_EQUAL(moved_tensor2.size(), 8); + + for (int i = 0; i < 8; i++) + { + calc_indices(i, x, y, z); + VERIFY_IS_EQUAL(moved_tensor1(x,y,z), 0); + VERIFY_IS_EQUAL(moved_tensor2(x,y,z), 0); + VERIFY_IS_EQUAL(moved_tensor3(x,y,z), i); + VERIFY_IS_EQUAL(moved_tensor4(x,y,z), 2 * i); + } +} + +EIGEN_DECLARE_TEST(cxx11_tensor_move) +{ + CALL_SUBTEST(test_move()); +} |