eigen/unsupported/test/cxx11_tensor_comparisons.cpp

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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@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>
using Eigen::Tensor;
using Eigen::RowMajor;
static void test_orderings()
{
Tensor<float, 3> mat1(2,3,7);
Tensor<float, 3> mat2(2,3,7);
Tensor<bool, 3> lt(2,3,7);
Tensor<bool, 3> le(2,3,7);
Tensor<bool, 3> gt(2,3,7);
Tensor<bool, 3> ge(2,3,7);
mat1.setRandom();
mat2.setRandom();
lt = mat1 < mat2;
le = mat1 <= mat2;
gt = mat1 > mat2;
ge = mat1 >= mat2;
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 7; ++k) {
VERIFY_IS_EQUAL(lt(i,j,k), mat1(i,j,k) < mat2(i,j,k));
VERIFY_IS_EQUAL(le(i,j,k), mat1(i,j,k) <= mat2(i,j,k));
VERIFY_IS_EQUAL(gt(i,j,k), mat1(i,j,k) > mat2(i,j,k));
VERIFY_IS_EQUAL(ge(i,j,k), mat1(i,j,k) >= mat2(i,j,k));
}
}
}
}
static void test_equality()
{
Tensor<float, 3> mat1(2,3,7);
Tensor<float, 3> mat2(2,3,7);
mat1.setRandom();
mat2.setRandom();
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 7; ++k) {
if (random() < 0.5) {
mat2(i,j,k) = mat1(i,j,k);
}
}
}
}
Tensor<bool, 3> eq(2,3,7);
Tensor<bool, 3> ne(2,3,7);
eq = (mat1 == mat2);
ne = (mat1 != mat2);
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 7; ++k) {
VERIFY_IS_EQUAL(eq(i,j,k), mat1(i,j,k) == mat2(i,j,k));
VERIFY_IS_EQUAL(ne(i,j,k), mat1(i,j,k) != mat2(i,j,k));
}
}
}
}
void test_cxx11_tensor_comparisons()
{
CALL_SUBTEST(test_orderings());
CALL_SUBTEST(test_equality());
}