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special_numbers.cpp
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Fri, Feb 21, 23:39

special_numbers.cpp
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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2013 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// 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 Scalar> void special_numbers()
{
typedef Matrix<Scalar, Dynamic,Dynamic> MatType;
int rows = internal::random<int>(1,300);
int cols = internal::random<int>(1,300);
Scalar nan = std::numeric_limits<Scalar>::quiet_NaN();
Scalar inf = std::numeric_limits<Scalar>::infinity();
Scalar s1 = internal::random<Scalar>();
MatType m1 = MatType::Random(rows,cols),
mnan = MatType::Random(rows,cols),
minf = MatType::Random(rows,cols),
mboth = MatType::Random(rows,cols);
int n = internal::random<int>(1,10);
for(int k=0; k<n; ++k)
{
mnan(internal::random<int>(0,rows-1), internal::random<int>(0,cols-1)) = nan;
minf(internal::random<int>(0,rows-1), internal::random<int>(0,cols-1)) = inf;
}
mboth = mnan + minf;
VERIFY(!m1.hasNaN());
VERIFY(m1.allFinite());
VERIFY(mnan.hasNaN());
VERIFY((s1*mnan).hasNaN());
VERIFY(!minf.hasNaN());
VERIFY(!(2*minf).hasNaN());
VERIFY(mboth.hasNaN());
VERIFY(mboth.array().hasNaN());
VERIFY(!mnan.allFinite());
VERIFY(!minf.allFinite());
VERIFY(!(minf-mboth).allFinite());
VERIFY(!mboth.allFinite());
VERIFY(!mboth.array().allFinite());
}
EIGEN_DECLARE_TEST(special_numbers)
{
for(int i = 0; i < 10*g_repeat; i++) {
CALL_SUBTEST_1( special_numbers<float>() );
CALL_SUBTEST_1( special_numbers<double>() );
}
}

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