| 1 | // This file is part of Eigen, a lightweight C++ template library
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| 2 | // for linear algebra.
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| 3 | //
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| 4 | // Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
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| 5 | //
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| 6 | // This Source Code Form is subject to the terms of the Mozilla
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| 7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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| 8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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| 9 |
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| 10 | #include "main.h"
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| 11 |
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| 12 |
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| 13 | template<typename MatrixType> void zeroReduction(const MatrixType& m) {
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| 14 | // Reductions that must hold for zero sized objects
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| 15 | VERIFY(m.all());
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| 16 | VERIFY(!m.any());
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| 17 | VERIFY(m.prod()==1);
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| 18 | VERIFY(m.sum()==0);
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| 19 | VERIFY(m.count()==0);
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| 20 | VERIFY(m.allFinite());
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| 21 | VERIFY(!m.hasNaN());
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| 22 | }
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| 23 |
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| 24 |
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| 25 | template<typename MatrixType> void zeroSizedMatrix()
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| 26 | {
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| 27 | MatrixType t1;
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| 28 |
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| 29 | if (MatrixType::SizeAtCompileTime == Dynamic || MatrixType::SizeAtCompileTime == 0)
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| 30 | {
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| 31 | zeroReduction(t1);
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| 32 | if (MatrixType::RowsAtCompileTime == Dynamic)
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| 33 | VERIFY(t1.rows() == 0);
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| 34 | if (MatrixType::ColsAtCompileTime == Dynamic)
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| 35 | VERIFY(t1.cols() == 0);
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| 36 |
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| 37 | if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
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| 38 | {
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| 39 |
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| 40 | MatrixType t2(0, 0);
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| 41 | VERIFY(t2.rows() == 0);
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| 42 | VERIFY(t2.cols() == 0);
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| 43 |
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| 44 | zeroReduction(t2);
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| 45 | VERIFY(t1==t2);
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| 46 | }
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| 47 | }
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| 48 | }
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| 49 |
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| 50 | template<typename VectorType> void zeroSizedVector()
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| 51 | {
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| 52 | VectorType t1;
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| 53 |
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| 54 | if (VectorType::SizeAtCompileTime == Dynamic || VectorType::SizeAtCompileTime==0)
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| 55 | {
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| 56 | zeroReduction(t1);
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| 57 | VERIFY(t1.size() == 0);
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| 58 | VectorType t2(DenseIndex(0)); // DenseIndex disambiguates with 0-the-null-pointer (error with gcc 4.4 and MSVC8)
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| 59 | VERIFY(t2.size() == 0);
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| 60 | zeroReduction(t2);
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| 61 |
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| 62 | VERIFY(t1==t2);
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | void test_zerosized()
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| 67 | {
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| 68 | zeroSizedMatrix<Matrix2d>();
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| 69 | zeroSizedMatrix<Matrix3i>();
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| 70 | zeroSizedMatrix<Matrix<float, 2, Dynamic> >();
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| 71 | zeroSizedMatrix<MatrixXf>();
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| 72 | zeroSizedMatrix<Matrix<float, 0, 0> >();
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| 73 | zeroSizedMatrix<Matrix<float, Dynamic, 0, 0, 0, 0> >();
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| 74 | zeroSizedMatrix<Matrix<float, 0, Dynamic, 0, 0, 0> >();
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| 75 | zeroSizedMatrix<Matrix<float, Dynamic, Dynamic, 0, 0, 0> >();
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| 76 | zeroSizedMatrix<Matrix<float, 0, 4> >();
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| 77 | zeroSizedMatrix<Matrix<float, 4, 0> >();
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| 78 |
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| 79 | zeroSizedVector<Vector2d>();
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| 80 | zeroSizedVector<Vector3i>();
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| 81 | zeroSizedVector<VectorXf>();
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| 82 | zeroSizedVector<Matrix<float, 0, 1> >();
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| 83 | zeroSizedVector<Matrix<float, 1, 0> >();
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| 84 | }
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