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Diffstat (limited to 'test/zerosized.cpp')
-rw-r--r-- | test/zerosized.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/test/zerosized.cpp b/test/zerosized.cpp new file mode 100644 index 000000000..a50922fdc --- /dev/null +++ b/test/zerosized.cpp @@ -0,0 +1,69 @@ +// 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(long(0)); // long disambiguates with 0-the-null-pointer (error with gcc 4.4) + VERIFY(t2.size() == 0); + } +} + +void test_zerosized() +{ + zeroSizedMatrix<Matrix2d>(); + zeroSizedMatrix<Matrix3i>(); + zeroSizedMatrix<Matrix<float, 2, Dynamic> >(); + zeroSizedMatrix<MatrixXf>(); + + zeroSizedVector<Vector2d>(); + zeroSizedVector<Vector3i>(); + zeroSizedVector<VectorXf>(); +} |