eigen/test/zerosized.cpp
Jitse Niesen 0b308e79c4 Add DenseStorage specializations for dynamic size with MaxSize = 0 (bug #288).
This is necessary for instantiations like Matrix<float,Dynamic,Dynamic,0,0,0>.
2011-06-24 13:47:11 +01:00

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2.4 KiB
C++

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
#include "main.h"
template<typename MatrixType> void zeroSizedMatrix()
{
MatrixType t1;
if (MatrixType::SizeAtCompileTime == Dynamic)
{
if (MatrixType::RowsAtCompileTime == Dynamic)
VERIFY(t1.rows() == 0);
if (MatrixType::ColsAtCompileTime == Dynamic)
VERIFY(t1.cols() == 0);
if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
{
MatrixType t2(0, 0);
VERIFY(t2.rows() == 0);
VERIFY(t2.cols() == 0);
}
}
}
template<typename VectorType> void zeroSizedVector()
{
VectorType t1;
if (VectorType::SizeAtCompileTime == Dynamic)
{
VERIFY(t1.size() == 0);
VectorType t2(DenseIndex(0)); // DenseIndex disambiguates with 0-the-null-pointer (error with gcc 4.4 and MSVC8)
VERIFY(t2.size() == 0);
}
}
void test_zerosized()
{
zeroSizedMatrix<Matrix2d>();
zeroSizedMatrix<Matrix3i>();
zeroSizedMatrix<Matrix<float, 2, Dynamic> >();
zeroSizedMatrix<MatrixXf>();
zeroSizedMatrix<Matrix<float, 0, 0> >();
zeroSizedMatrix<Matrix<float, Dynamic, 0, 0, 0, 0> >();
zeroSizedMatrix<Matrix<float, 0, Dynamic, 0, 0, 0> >();
zeroSizedMatrix<Matrix<float, Dynamic, Dynamic, 0, 0, 0> >();
zeroSizedVector<Vector2d>();
zeroSizedVector<Vector3i>();
zeroSizedVector<VectorXf>();
zeroSizedVector<Matrix<float, 0, 1> >();
}