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54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// 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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static void test_simple()
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{
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Tensor<float, 1, ColMajor> vec1(6);
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Tensor<float, 1, ColMajor, int> vec2(6);
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vec1(0) = 4.0; vec2(0) = 0.0;
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vec1(1) = 8.0; vec2(1) = 1.0;
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vec1(2) = 15.0; vec2(2) = 2.0;
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vec1(3) = 16.0; vec2(3) = 3.0;
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vec1(4) = 23.0; vec2(4) = 4.0;
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vec1(5) = 42.0; vec2(5) = 5.0;
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float data3[6];
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TensorMap<Tensor<float, 1, ColMajor>> vec3(data3, 6);
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vec3 = vec1.sqrt();
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float data4[6];
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TensorMap<Tensor<float, 1, ColMajor, int>> vec4(data4, 6);
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vec4 = vec2.square();
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VERIFY_IS_APPROX(vec3(0), sqrtf(4.0));
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VERIFY_IS_APPROX(vec3(1), sqrtf(8.0));
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VERIFY_IS_APPROX(vec3(2), sqrtf(15.0));
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VERIFY_IS_APPROX(vec3(3), sqrtf(16.0));
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VERIFY_IS_APPROX(vec3(4), sqrtf(23.0));
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VERIFY_IS_APPROX(vec3(5), sqrtf(42.0));
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VERIFY_IS_APPROX(vec4(0), 0.0f);
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VERIFY_IS_APPROX(vec4(1), 1.0f);
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VERIFY_IS_APPROX(vec4(2), 2.0f * 2.0f);
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VERIFY_IS_APPROX(vec4(3), 3.0f * 3.0f);
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VERIFY_IS_APPROX(vec4(4), 4.0f * 4.0f);
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VERIFY_IS_APPROX(vec4(5), 5.0f * 5.0f);
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}
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void test_cxx11_tensor_mixed_indices()
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{
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CALL_SUBTEST(test_simple());
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}
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