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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2013 Christian Seiler <christian@iwakd.de>
//
// 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>
using Eigen::RowMajor;
using Eigen::Tensor;
static void test_0d() {
Tensor<int, 0> scalar1;
Tensor<int, 0, RowMajor> scalar2;
Tensor<int, 0> scalar3;
Tensor<int, 0, RowMajor> scalar4;
scalar3.resize();
scalar4.resize();
scalar1() = 7;
scalar2() = 13;
scalar3.setValues(17);
scalar4.setZero();
VERIFY_IS_EQUAL(scalar1.rank(), 0);
VERIFY_IS_EQUAL(scalar1.size(), 1);
VERIFY_IS_EQUAL(scalar1(), 7);
VERIFY_IS_EQUAL(scalar2(), 13);
VERIFY_IS_EQUAL(scalar3(), 17);
VERIFY_IS_EQUAL(scalar4(), 0);
Tensor<int, 0> scalar5(scalar1);
VERIFY_IS_EQUAL(scalar5(), 7);
VERIFY_IS_EQUAL(scalar5.data()[0], 7);
}
static void test_1d() {
Tensor<int, 1> vec1(6);
Tensor<int, 1, RowMajor> vec2(6);
Tensor<int, 1> vec3;
Tensor<int, 1, RowMajor> vec4;
vec3.resize(6);
vec4.resize(6);
vec1(0) = 4;
vec2(0) = 0;
vec3(0) = 5;
vec1(1) = 8;
vec2(1) = 1;
vec3(1) = 4;
vec1(2) = 15;
vec2(2) = 2;
vec3(2) = 3;
vec1(3) = 16;
vec2(3) = 3;
vec3(3) = 2;
vec1(4) = 23;
vec2(4) = 4;
vec3(4) = 1;
vec1(5) = 42;
vec2(5) = 5;
vec3(5) = 0;
vec4.setZero();
VERIFY_IS_EQUAL((vec1.rank()), 1);
VERIFY_IS_EQUAL((vec1.size()), 6);
VERIFY_IS_EQUAL((vec1.dimensions()[0]), 6);
VERIFY_IS_EQUAL((vec1[0]), 4);
VERIFY_IS_EQUAL((vec1[1]), 8);
VERIFY_IS_EQUAL((vec1[2]), 15);
VERIFY_IS_EQUAL((vec1[3]), 16);
VERIFY_IS_EQUAL((vec1[4]), 23);
VERIFY_IS_EQUAL((vec1[5]), 42);
VERIFY_IS_EQUAL((vec2[0]), 0);
VERIFY_IS_EQUAL((vec2[1]), 1);
VERIFY_IS_EQUAL((vec2[2]), 2);
VERIFY_IS_EQUAL((vec2[3]), 3);
VERIFY_IS_EQUAL((vec2[4]), 4);
VERIFY_IS_EQUAL((vec2[5]), 5);
VERIFY_IS_EQUAL((vec3[0]), 5);
VERIFY_IS_EQUAL((vec3[1]), 4);
VERIFY_IS_EQUAL((vec3[2]), 3);
VERIFY_IS_EQUAL((vec3[3]), 2);
VERIFY_IS_EQUAL((vec3[4]), 1);
VERIFY_IS_EQUAL((vec3[5]), 0);
VERIFY_IS_EQUAL((vec4[0]), 0);
VERIFY_IS_EQUAL((vec4[1]), 0);
VERIFY_IS_EQUAL((vec4[2]), 0);
VERIFY_IS_EQUAL((vec4[3]), 0);
VERIFY_IS_EQUAL((vec4[4]), 0);
VERIFY_IS_EQUAL((vec4[5]), 0);
Tensor<int, 1> vec5(vec1);
VERIFY_IS_EQUAL((vec5(0)), 4);
VERIFY_IS_EQUAL((vec5(1)), 8);
VERIFY_IS_EQUAL((vec5(2)), 15);
VERIFY_IS_EQUAL((vec5(3)), 16);
VERIFY_IS_EQUAL((vec5(4)), 23);
VERIFY_IS_EQUAL((vec5(5)), 42);
VERIFY_IS_EQUAL((vec5.data()[0]), 4);
VERIFY_IS_EQUAL((vec5.data()[1]), 8);
VERIFY_IS_EQUAL((vec5.data()[2]), 15);
VERIFY_IS_EQUAL((vec5.data()[3]), 16);
VERIFY_IS_EQUAL((vec5.data()[4]), 23);
VERIFY_IS_EQUAL((vec5.data()[5]), 42);
}
static void test_2d() {
Tensor<int, 2> mat1(2, 3);
Tensor<int, 2, RowMajor> mat2(2, 3);
mat1(0, 0) = 0;
mat1(0, 1) = 1;
mat1(0, 2) = 2;
mat1(1, 0) = 3;
mat1(1, 1) = 4;
mat1(1, 2) = 5;
mat2(0, 0) = 0;
mat2(0, 1) = 1;
mat2(0, 2) = 2;
mat2(1, 0) = 3;
mat2(1, 1) = 4;
mat2(1, 2) = 5;
VERIFY_IS_EQUAL((mat1.rank()), 2);
VERIFY_IS_EQUAL((mat1.size()), 6);
VERIFY_IS_EQUAL((mat1.dimensions()[0]), 2);
VERIFY_IS_EQUAL((mat1.dimensions()[1]), 3);
VERIFY_IS_EQUAL((mat2.rank()), 2);
VERIFY_IS_EQUAL((mat2.size()), 6);
VERIFY_IS_EQUAL((mat2.dimensions()[0]), 2);
VERIFY_IS_EQUAL((mat2.dimensions()[1]), 3);
VERIFY_IS_EQUAL((mat1.data()[0]), 0);
VERIFY_IS_EQUAL((mat1.data()[1]), 3);
VERIFY_IS_EQUAL((mat1.data()[2]), 1);
VERIFY_IS_EQUAL((mat1.data()[3]), 4);
VERIFY_IS_EQUAL((mat1.data()[4]), 2);
VERIFY_IS_EQUAL((mat1.data()[5]), 5);
VERIFY_IS_EQUAL((mat2.data()[0]), 0);
VERIFY_IS_EQUAL((mat2.data()[1]), 1);
VERIFY_IS_EQUAL((mat2.data()[2]), 2);
VERIFY_IS_EQUAL((mat2.data()[3]), 3);
VERIFY_IS_EQUAL((mat2.data()[4]), 4);
VERIFY_IS_EQUAL((mat2.data()[5]), 5);
}
static void test_3d() {
Tensor<int, 3> epsilon(3, 3, 3);
epsilon.setZero();
epsilon(0, 1, 2) = epsilon(2, 0, 1) = epsilon(1, 2, 0) = 1;
epsilon(2, 1, 0) = epsilon(0, 2, 1) = epsilon(1, 0, 2) = -1;
VERIFY_IS_EQUAL((epsilon.size()), 27);
VERIFY_IS_EQUAL((epsilon.dimensions()[0]), 3);
VERIFY_IS_EQUAL((epsilon.dimensions()[1]), 3);
VERIFY_IS_EQUAL((epsilon.dimensions()[2]), 3);
VERIFY_IS_EQUAL((epsilon(0, 0, 0)), 0);
VERIFY_IS_EQUAL((epsilon(0, 0, 1)), 0);
VERIFY_IS_EQUAL((epsilon(0, 0, 2)), 0);
VERIFY_IS_EQUAL((epsilon(0, 1, 0)), 0);
VERIFY_IS_EQUAL((epsilon(0, 1, 1)), 0);
VERIFY_IS_EQUAL((epsilon(0, 2, 0)), 0);
VERIFY_IS_EQUAL((epsilon(0, 2, 2)), 0);
VERIFY_IS_EQUAL((epsilon(1, 0, 0)), 0);
VERIFY_IS_EQUAL((epsilon(1, 0, 1)), 0);
VERIFY_IS_EQUAL((epsilon(1, 1, 0)), 0);
VERIFY_IS_EQUAL((epsilon(1, 1, 1)), 0);
VERIFY_IS_EQUAL((epsilon(1, 1, 2)), 0);
VERIFY_IS_EQUAL((epsilon(1, 2, 1)), 0);
VERIFY_IS_EQUAL((epsilon(1, 2, 2)), 0);
VERIFY_IS_EQUAL((epsilon(2, 0, 0)), 0);
VERIFY_IS_EQUAL((epsilon(2, 0, 2)), 0);
VERIFY_IS_EQUAL((epsilon(2, 1, 1)), 0);
VERIFY_IS_EQUAL((epsilon(2, 1, 2)), 0);
VERIFY_IS_EQUAL((epsilon(2, 2, 0)), 0);
VERIFY_IS_EQUAL((epsilon(2, 2, 1)), 0);
VERIFY_IS_EQUAL((epsilon(2, 2, 2)), 0);
VERIFY_IS_EQUAL((epsilon(0, 1, 2)), 1);
VERIFY_IS_EQUAL((epsilon(2, 0, 1)), 1);
VERIFY_IS_EQUAL((epsilon(1, 2, 0)), 1);
VERIFY_IS_EQUAL((epsilon(2, 1, 0)), -1);
VERIFY_IS_EQUAL((epsilon(0, 2, 1)), -1);
VERIFY_IS_EQUAL((epsilon(1, 0, 2)), -1);
array<Eigen::DenseIndex, 3> dims;
dims[0] = 2;
dims[1] = 3;
dims[2] = 4;
Tensor<int, 3> t1(dims);
Tensor<int, 3, RowMajor> t2(dims);
VERIFY_IS_EQUAL((t1.size()), 24);
VERIFY_IS_EQUAL((t1.dimensions()[0]), 2);
VERIFY_IS_EQUAL((t1.dimensions()[1]), 3);
VERIFY_IS_EQUAL((t1.dimensions()[2]), 4);
VERIFY_IS_EQUAL((t2.size()), 24);
VERIFY_IS_EQUAL((t2.dimensions()[0]), 2);
VERIFY_IS_EQUAL((t2.dimensions()[1]), 3);
VERIFY_IS_EQUAL((t2.dimensions()[2]), 4);
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 3; j++) {
for (int k = 0; k < 4; k++) {
t1(i, j, k) = 100 * i + 10 * j + k;
t2(i, j, k) = 100 * i + 10 * j + k;
}
}
}
VERIFY_IS_EQUAL((t1.data()[0]), 0);
VERIFY_IS_EQUAL((t1.data()[1]), 100);
VERIFY_IS_EQUAL((t1.data()[2]), 10);
VERIFY_IS_EQUAL((t1.data()[3]), 110);
VERIFY_IS_EQUAL((t1.data()[4]), 20);
VERIFY_IS_EQUAL((t1.data()[5]), 120);
VERIFY_IS_EQUAL((t1.data()[6]), 1);
VERIFY_IS_EQUAL((t1.data()[7]), 101);
VERIFY_IS_EQUAL((t1.data()[8]), 11);
VERIFY_IS_EQUAL((t1.data()[9]), 111);
VERIFY_IS_EQUAL((t1.data()[10]), 21);
VERIFY_IS_EQUAL((t1.data()[11]), 121);
VERIFY_IS_EQUAL((t1.data()[12]), 2);
VERIFY_IS_EQUAL((t1.data()[13]), 102);
VERIFY_IS_EQUAL((t1.data()[14]), 12);
VERIFY_IS_EQUAL((t1.data()[15]), 112);
VERIFY_IS_EQUAL((t1.data()[16]), 22);
VERIFY_IS_EQUAL((t1.data()[17]), 122);
VERIFY_IS_EQUAL((t1.data()[18]), 3);
VERIFY_IS_EQUAL((t1.data()[19]), 103);
VERIFY_IS_EQUAL((t1.data()[20]), 13);
VERIFY_IS_EQUAL((t1.data()[21]), 113);
VERIFY_IS_EQUAL((t1.data()[22]), 23);
VERIFY_IS_EQUAL((t1.data()[23]), 123);
VERIFY_IS_EQUAL((t2.data()[0]), 0);
VERIFY_IS_EQUAL((t2.data()[1]), 1);
VERIFY_IS_EQUAL((t2.data()[2]), 2);
VERIFY_IS_EQUAL((t2.data()[3]), 3);
VERIFY_IS_EQUAL((t2.data()[4]), 10);
VERIFY_IS_EQUAL((t2.data()[5]), 11);
VERIFY_IS_EQUAL((t2.data()[6]), 12);
VERIFY_IS_EQUAL((t2.data()[7]), 13);
VERIFY_IS_EQUAL((t2.data()[8]), 20);
VERIFY_IS_EQUAL((t2.data()[9]), 21);
VERIFY_IS_EQUAL((t2.data()[10]), 22);
VERIFY_IS_EQUAL((t2.data()[11]), 23);
VERIFY_IS_EQUAL((t2.data()[12]), 100);
VERIFY_IS_EQUAL((t2.data()[13]), 101);
VERIFY_IS_EQUAL((t2.data()[14]), 102);
VERIFY_IS_EQUAL((t2.data()[15]), 103);
VERIFY_IS_EQUAL((t2.data()[16]), 110);
VERIFY_IS_EQUAL((t2.data()[17]), 111);
VERIFY_IS_EQUAL((t2.data()[18]), 112);
VERIFY_IS_EQUAL((t2.data()[19]), 113);
VERIFY_IS_EQUAL((t2.data()[20]), 120);
VERIFY_IS_EQUAL((t2.data()[21]), 121);
VERIFY_IS_EQUAL((t2.data()[22]), 122);
VERIFY_IS_EQUAL((t2.data()[23]), 123);
}
static void test_simple_assign() {
Tensor<int, 3> epsilon(3, 3, 3);
epsilon.setZero();
epsilon(0, 1, 2) = epsilon(2, 0, 1) = epsilon(1, 2, 0) = 1;
epsilon(2, 1, 0) = epsilon(0, 2, 1) = epsilon(1, 0, 2) = -1;
Tensor<int, 3> e2(3, 3, 3);
e2.setZero();
VERIFY_IS_EQUAL((e2(1, 2, 0)), 0);
e2 = epsilon;
VERIFY_IS_EQUAL((e2(1, 2, 0)), 1);
VERIFY_IS_EQUAL((e2(0, 1, 2)), 1);
VERIFY_IS_EQUAL((e2(2, 0, 1)), 1);
VERIFY_IS_EQUAL((e2(2, 1, 0)), -1);
VERIFY_IS_EQUAL((e2(0, 2, 1)), -1);
VERIFY_IS_EQUAL((e2(1, 0, 2)), -1);
}
static void test_resize() {
Tensor<int, 3> epsilon;
epsilon.resize(2, 3, 7);
VERIFY_IS_EQUAL(epsilon.dimension(0), 2);
VERIFY_IS_EQUAL(epsilon.dimension(1), 3);
VERIFY_IS_EQUAL(epsilon.dimension(2), 7);
VERIFY_IS_EQUAL(epsilon.size(), 2 * 3 * 7);
const int* old_data = epsilon.data();
epsilon.resize(3, 2, 7);
VERIFY_IS_EQUAL(epsilon.dimension(0), 3);
VERIFY_IS_EQUAL(epsilon.dimension(1), 2);
VERIFY_IS_EQUAL(epsilon.dimension(2), 7);
VERIFY_IS_EQUAL(epsilon.size(), 2 * 3 * 7);
VERIFY_IS_EQUAL(epsilon.data(), old_data);
epsilon.resize(3, 5, 7);
VERIFY_IS_EQUAL(epsilon.dimension(0), 3);
VERIFY_IS_EQUAL(epsilon.dimension(1), 5);
VERIFY_IS_EQUAL(epsilon.dimension(2), 7);
VERIFY_IS_EQUAL(epsilon.size(), 3 * 5 * 7);
}
EIGEN_DECLARE_TEST(cxx11_tensor_simple) {
CALL_SUBTEST(test_0d());
CALL_SUBTEST(test_1d());
CALL_SUBTEST(test_2d());
CALL_SUBTEST(test_3d());
CALL_SUBTEST(test_simple_assign());
CALL_SUBTEST(test_resize());
}