eigen/test/nesting_ops.cpp
2014-02-19 15:16:11 +01:00

39 lines
1.4 KiB
C++

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2010 Hauke Heibel <hauke.heibel@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"
template <typename MatrixType> void run_nesting_ops(const MatrixType& _m)
{
#ifndef EIGEN_TEST_EVALUATORS
// TODO, with evaluator, the following is not correct anymore:
typename MatrixType::Nested m(_m);
#else
typename internal::nested_eval<MatrixType,2>::type m(_m);
#endif
// Make really sure that we are in debug mode!
VERIFY_RAISES_ASSERT(eigen_assert(false));
// The only intention of these tests is to ensure that this code does
// not trigger any asserts or segmentation faults... more to come.
VERIFY_IS_APPROX( (m.transpose() * m).diagonal().sum(), (m.transpose() * m).diagonal().sum() );
VERIFY_IS_APPROX( (m.transpose() * m).diagonal().array().abs().sum(), (m.transpose() * m).diagonal().array().abs().sum() );
VERIFY_IS_APPROX( (m.transpose() * m).array().abs().sum(), (m.transpose() * m).array().abs().sum() );
}
void test_nesting_ops()
{
CALL_SUBTEST_1(run_nesting_ops(MatrixXf::Random(25,25)));
CALL_SUBTEST_2(run_nesting_ops(MatrixXd::Random(25,25)));
CALL_SUBTEST_3(run_nesting_ops(Matrix4f::Random()));
CALL_SUBTEST_4(run_nesting_ops(Matrix4d::Random()));
}