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
14 using Eigen::Tensor;
15 using Eigen::RowMajor;
16
17
test_0d()18 static void test_0d()
19 {
20 TensorFixedSize<float, Sizes<> > scalar1;
21 TensorFixedSize<float, Sizes<>, RowMajor> scalar2;
22 VERIFY_IS_EQUAL(scalar1.rank(), 0);
23 VERIFY_IS_EQUAL(scalar1.size(), 1);
24 VERIFY_IS_EQUAL(array_prod(scalar1.dimensions()), 1);
25
26 scalar1() = 7.0;
27 scalar2() = 13.0;
28
29 // Test against shallow copy.
30 TensorFixedSize<float, Sizes<> > copy = scalar1;
31 VERIFY_IS_NOT_EQUAL(scalar1.data(), copy.data());
32 VERIFY_IS_APPROX(scalar1(), copy());
33 copy = scalar1;
34 VERIFY_IS_NOT_EQUAL(scalar1.data(), copy.data());
35 VERIFY_IS_APPROX(scalar1(), copy());
36
37 TensorFixedSize<float, Sizes<> > scalar3 = scalar1.sqrt();
38 TensorFixedSize<float, Sizes<>, RowMajor> scalar4 = scalar2.sqrt();
39 VERIFY_IS_EQUAL(scalar3.rank(), 0);
40 VERIFY_IS_APPROX(scalar3(), sqrtf(7.0));
41 VERIFY_IS_APPROX(scalar4(), sqrtf(13.0));
42
43 scalar3 = scalar1 + scalar2;
44 VERIFY_IS_APPROX(scalar3(), 7.0f + 13.0f);
45 }
46
test_1d()47 static void test_1d()
48 {
49 TensorFixedSize<float, Sizes<6> > vec1;
50 TensorFixedSize<float, Sizes<6>, RowMajor> vec2;
51
52 VERIFY_IS_EQUAL((vec1.size()), 6);
53 // VERIFY_IS_EQUAL((vec1.dimensions()[0]), 6);
54 // VERIFY_IS_EQUAL((vec1.dimension(0)), 6);
55
56 vec1(0) = 4.0; vec2(0) = 0.0;
57 vec1(1) = 8.0; vec2(1) = 1.0;
58 vec1(2) = 15.0; vec2(2) = 2.0;
59 vec1(3) = 16.0; vec2(3) = 3.0;
60 vec1(4) = 23.0; vec2(4) = 4.0;
61 vec1(5) = 42.0; vec2(5) = 5.0;
62
63 // Test against shallow copy.
64 TensorFixedSize<float, Sizes<6> > copy = vec1;
65 VERIFY_IS_NOT_EQUAL(vec1.data(), copy.data());
66 for (int i = 0; i < 6; ++i) {
67 VERIFY_IS_APPROX(vec1(i), copy(i));
68 }
69 copy = vec1;
70 VERIFY_IS_NOT_EQUAL(vec1.data(), copy.data());
71 for (int i = 0; i < 6; ++i) {
72 VERIFY_IS_APPROX(vec1(i), copy(i));
73 }
74
75 TensorFixedSize<float, Sizes<6> > vec3 = vec1.sqrt();
76 TensorFixedSize<float, Sizes<6>, RowMajor> vec4 = vec2.sqrt();
77
78 VERIFY_IS_EQUAL((vec3.size()), 6);
79 VERIFY_IS_EQUAL(vec3.rank(), 1);
80 // VERIFY_IS_EQUAL((vec3.dimensions()[0]), 6);
81 // VERIFY_IS_EQUAL((vec3.dimension(0)), 6);
82
83 VERIFY_IS_APPROX(vec3(0), sqrtf(4.0));
84 VERIFY_IS_APPROX(vec3(1), sqrtf(8.0));
85 VERIFY_IS_APPROX(vec3(2), sqrtf(15.0));
86 VERIFY_IS_APPROX(vec3(3), sqrtf(16.0));
87 VERIFY_IS_APPROX(vec3(4), sqrtf(23.0));
88 VERIFY_IS_APPROX(vec3(5), sqrtf(42.0));
89
90 VERIFY_IS_APPROX(vec4(0), sqrtf(0.0));
91 VERIFY_IS_APPROX(vec4(1), sqrtf(1.0));
92 VERIFY_IS_APPROX(vec4(2), sqrtf(2.0));
93 VERIFY_IS_APPROX(vec4(3), sqrtf(3.0));
94 VERIFY_IS_APPROX(vec4(4), sqrtf(4.0));
95 VERIFY_IS_APPROX(vec4(5), sqrtf(5.0));
96
97 vec3 = vec1 + vec2;
98 VERIFY_IS_APPROX(vec3(0), 4.0f + 0.0f);
99 VERIFY_IS_APPROX(vec3(1), 8.0f + 1.0f);
100 VERIFY_IS_APPROX(vec3(2), 15.0f + 2.0f);
101 VERIFY_IS_APPROX(vec3(3), 16.0f + 3.0f);
102 VERIFY_IS_APPROX(vec3(4), 23.0f + 4.0f);
103 VERIFY_IS_APPROX(vec3(5), 42.0f + 5.0f);
104 }
105
test_tensor_map()106 static void test_tensor_map()
107 {
108 TensorFixedSize<float, Sizes<6> > vec1;
109 TensorFixedSize<float, Sizes<6>, RowMajor> vec2;
110
111 vec1(0) = 4.0; vec2(0) = 0.0;
112 vec1(1) = 8.0; vec2(1) = 1.0;
113 vec1(2) = 15.0; vec2(2) = 2.0;
114 vec1(3) = 16.0; vec2(3) = 3.0;
115 vec1(4) = 23.0; vec2(4) = 4.0;
116 vec1(5) = 42.0; vec2(5) = 5.0;
117
118 float data3[6];
119 TensorMap<TensorFixedSize<float, Sizes<6> > > vec3(data3, 6);
120 vec3 = vec1.sqrt() + vec2;
121
122 VERIFY_IS_APPROX(vec3(0), sqrtf(4.0));
123 VERIFY_IS_APPROX(vec3(1), sqrtf(8.0) + 1.0f);
124 VERIFY_IS_APPROX(vec3(2), sqrtf(15.0) + 2.0f);
125 VERIFY_IS_APPROX(vec3(3), sqrtf(16.0) + 3.0f);
126 VERIFY_IS_APPROX(vec3(4), sqrtf(23.0) + 4.0f);
127 VERIFY_IS_APPROX(vec3(5), sqrtf(42.0) + 5.0f);
128 }
129
test_2d()130 static void test_2d()
131 {
132 float data1[6];
133 TensorMap<TensorFixedSize<float, Sizes<2, 3> > > mat1(data1,2,3);
134 float data2[6];
135 TensorMap<TensorFixedSize<float, Sizes<2, 3>, RowMajor> > mat2(data2,2,3);
136
137 VERIFY_IS_EQUAL((mat1.size()), 2*3);
138 VERIFY_IS_EQUAL(mat1.rank(), 2);
139 // VERIFY_IS_EQUAL((mat1.dimension(0)), 2);
140 // VERIFY_IS_EQUAL((mat1.dimension(1)), 3);
141
142 mat1(0,0) = 0.0;
143 mat1(0,1) = 1.0;
144 mat1(0,2) = 2.0;
145 mat1(1,0) = 3.0;
146 mat1(1,1) = 4.0;
147 mat1(1,2) = 5.0;
148
149 mat2(0,0) = -0.0;
150 mat2(0,1) = -1.0;
151 mat2(0,2) = -2.0;
152 mat2(1,0) = -3.0;
153 mat2(1,1) = -4.0;
154 mat2(1,2) = -5.0;
155
156 TensorFixedSize<float, Sizes<2, 3> > mat3;
157 TensorFixedSize<float, Sizes<2, 3>, RowMajor> mat4;
158 mat3 = mat1.abs();
159 mat4 = mat2.abs();
160
161 VERIFY_IS_EQUAL((mat3.size()), 2*3);
162 // VERIFY_IS_EQUAL((mat3.dimension(0)), 2);
163 // VERIFY_IS_EQUAL((mat3.dimension(1)), 3);
164
165 VERIFY_IS_APPROX(mat3(0,0), 0.0f);
166 VERIFY_IS_APPROX(mat3(0,1), 1.0f);
167 VERIFY_IS_APPROX(mat3(0,2), 2.0f);
168 VERIFY_IS_APPROX(mat3(1,0), 3.0f);
169 VERIFY_IS_APPROX(mat3(1,1), 4.0f);
170 VERIFY_IS_APPROX(mat3(1,2), 5.0f);
171
172 VERIFY_IS_APPROX(mat4(0,0), 0.0f);
173 VERIFY_IS_APPROX(mat4(0,1), 1.0f);
174 VERIFY_IS_APPROX(mat4(0,2), 2.0f);
175 VERIFY_IS_APPROX(mat4(1,0), 3.0f);
176 VERIFY_IS_APPROX(mat4(1,1), 4.0f);
177 VERIFY_IS_APPROX(mat4(1,2), 5.0f);
178 }
179
test_3d()180 static void test_3d()
181 {
182 TensorFixedSize<float, Sizes<2, 3, 7> > mat1;
183 TensorFixedSize<float, Sizes<2, 3, 7>, RowMajor> mat2;
184
185 VERIFY_IS_EQUAL((mat1.size()), 2*3*7);
186 VERIFY_IS_EQUAL(mat1.rank(), 3);
187 // VERIFY_IS_EQUAL((mat1.dimension(0)), 2);
188 // VERIFY_IS_EQUAL((mat1.dimension(1)), 3);
189 // VERIFY_IS_EQUAL((mat1.dimension(2)), 7);
190
191 float val = 0.0f;
192 for (int i = 0; i < 2; ++i) {
193 for (int j = 0; j < 3; ++j) {
194 for (int k = 0; k < 7; ++k) {
195 mat1(i,j,k) = val;
196 mat2(i,j,k) = val;
197 val += 1.0f;
198 }
199 }
200 }
201
202 TensorFixedSize<float, Sizes<2, 3, 7> > mat3;
203 mat3 = mat1.sqrt();
204 TensorFixedSize<float, Sizes<2, 3, 7>, RowMajor> mat4;
205 mat4 = mat2.sqrt();
206
207 VERIFY_IS_EQUAL((mat3.size()), 2*3*7);
208 // VERIFY_IS_EQUAL((mat3.dimension(0)), 2);
209 // VERIFY_IS_EQUAL((mat3.dimension(1)), 3);
210 // VERIFY_IS_EQUAL((mat3.dimension(2)), 7);
211
212
213 val = 0.0f;
214 for (int i = 0; i < 2; ++i) {
215 for (int j = 0; j < 3; ++j) {
216 for (int k = 0; k < 7; ++k) {
217 VERIFY_IS_APPROX(mat3(i,j,k), sqrtf(val));
218 VERIFY_IS_APPROX(mat4(i,j,k), sqrtf(val));
219 val += 1.0f;
220 }
221 }
222 }
223 }
224
225
test_array()226 static void test_array()
227 {
228 TensorFixedSize<float, Sizes<2, 3, 7> > mat1;
229 float val = 0.0f;
230 for (int i = 0; i < 2; ++i) {
231 for (int j = 0; j < 3; ++j) {
232 for (int k = 0; k < 7; ++k) {
233 mat1(i,j,k) = val;
234 val += 1.0f;
235 }
236 }
237 }
238
239 TensorFixedSize<float, Sizes<2, 3, 7> > mat3;
240 mat3 = mat1.pow(3.5f);
241
242 val = 0.0f;
243 for (int i = 0; i < 2; ++i) {
244 for (int j = 0; j < 3; ++j) {
245 for (int k = 0; k < 7; ++k) {
246 VERIFY_IS_APPROX(mat3(i,j,k), powf(val, 3.5f));
247 val += 1.0f;
248 }
249 }
250 }
251 }
252
test_cxx11_tensor_fixed_size()253 void test_cxx11_tensor_fixed_size()
254 {
255 CALL_SUBTEST(test_0d());
256 CALL_SUBTEST(test_1d());
257 CALL_SUBTEST(test_tensor_map());
258 CALL_SUBTEST(test_2d());
259 CALL_SUBTEST(test_3d());
260 CALL_SUBTEST(test_array());
261 }
262