cxx11_tensor_const.cpp
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1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 
10 #include "main.h"
11 
12 #include <Eigen/CXX11/Tensor>
13 using Eigen::Tensor;
14 
15 
16 static void test_simple_assign()
17 {
18  Tensor<int, 3> random(2,3,7);
19  random.setRandom();
20 
21  TensorMap<Tensor<const int, 3> > constant(random.data(), 2, 3, 7);
22  Tensor<int, 3> result(2,3,7);
23  result = constant;
24 
25  for (int i = 0; i < 2; ++i) {
26  for (int j = 0; j < 3; ++j) {
27  for (int k = 0; k < 7; ++k) {
28  VERIFY_IS_EQUAL((result(i,j,k)), random(i,j,k));
29  }
30  }
31  }
32 }
33 
34 
36 {
37  Tensor<int, 3> random(2,3,7);
38  random.setRandom();
39 
40  TensorMap<Tensor<const int, 3> > constant1(random.data(), 2, 3, 7);
41  TensorMap<const Tensor<int, 3> > constant2(random.data(), 2, 3, 7);
42  const TensorMap<Tensor<int, 3> > constant3(random.data(), 2, 3, 7);
43 
44  Tensor<int, 2> result1 = constant1.chip(0, 2);
45  Tensor<int, 2> result2 = constant2.chip(0, 2);
46  Tensor<int, 2> result3 = constant3.chip(0, 2);
47 
48  for (int i = 0; i < 2; ++i) {
49  for (int j = 0; j < 3; ++j) {
50  VERIFY_IS_EQUAL((result1(i,j)), random(i,j,0));
51  VERIFY_IS_EQUAL((result2(i,j)), random(i,j,0));
52  VERIFY_IS_EQUAL((result3(i,j)), random(i,j,0));
53  }
54  }
55 }
56 
57 
58 EIGEN_DECLARE_TEST(cxx11_tensor_const)
59 {
62 }
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Tensor< Scalar_, NumIndices_, Options_, IndexType_ > & setRandom()
Definition: TensorBase.h:996
EIGEN_DECLARE_TEST(cxx11_tensor_const)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const TensorChippingOp< DimId, const Derived > chip(const Index offset) const
Definition: TensorBase.h:1090
static void test_assign_of_const_tensor()
#define VERIFY_IS_EQUAL(a, b)
Definition: main.h:386
Values result
A tensor expression mapping an existing array of data.
static void test_simple_assign()
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Scalar * data()
Definition: Tensor.h:104
#define CALL_SUBTEST(FUNC)
Definition: main.h:399
std::ptrdiff_t j
The tensor class.
Definition: Tensor.h:63


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autogenerated on Tue Jul 4 2023 02:34:07