1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2011 Benoit Jacob <jacob.benoit.1 (at) gmail.com> 5 // 6 // This Source Code Form is subject to the terms of the Mozilla 7 // Public License v. 2.0. If a copy of the MPL was not distributed 8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 9 10 #include "main.h" 11 12 13 template<typename MatrixType> void zeroReduction(const MatrixType& m) { 14 // Reductions that must hold for zero sized objects 15 VERIFY(m.all()); 16 VERIFY(!m.any()); 17 VERIFY(m.prod()==1); 18 VERIFY(m.sum()==0); 19 VERIFY(m.count()==0); 20 VERIFY(m.allFinite()); 21 VERIFY(!m.hasNaN()); 22 } 23 24 25 template<typename MatrixType> void zeroSizedMatrix() 26 { 27 MatrixType t1; 28 29 if (MatrixType::SizeAtCompileTime == Dynamic || MatrixType::SizeAtCompileTime == 0) 30 { 31 zeroReduction(t1); 32 if (MatrixType::RowsAtCompileTime == Dynamic) 33 VERIFY(t1.rows() == 0); 34 if (MatrixType::ColsAtCompileTime == Dynamic) 35 VERIFY(t1.cols() == 0); 36 37 if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic) 38 { 39 40 MatrixType t2(0, 0); 41 VERIFY(t2.rows() == 0); 42 VERIFY(t2.cols() == 0); 43 44 zeroReduction(t2); 45 VERIFY(t1==t2); 46 } 47 } 48 } 49 50 template<typename VectorType> void zeroSizedVector() 51 { 52 VectorType t1; 53 54 if (VectorType::SizeAtCompileTime == Dynamic || VectorType::SizeAtCompileTime==0) 55 { 56 zeroReduction(t1); 57 VERIFY(t1.size() == 0); 58 VectorType t2(DenseIndex(0)); // DenseIndex disambiguates with 0-the-null-pointer (error with gcc 4.4 and MSVC8) 59 VERIFY(t2.size() == 0); 60 zeroReduction(t2); 61 62 VERIFY(t1==t2); 63 } 64 } 65 66 void test_zerosized() 67 { 68 zeroSizedMatrix<Matrix2d>(); 69 zeroSizedMatrix<Matrix3i>(); 70 zeroSizedMatrix<Matrix<float, 2, Dynamic> >(); 71 zeroSizedMatrix<MatrixXf>(); 72 zeroSizedMatrix<Matrix<float, 0, 0> >(); 73 zeroSizedMatrix<Matrix<float, Dynamic, 0, 0, 0, 0> >(); 74 zeroSizedMatrix<Matrix<float, 0, Dynamic, 0, 0, 0> >(); 75 zeroSizedMatrix<Matrix<float, Dynamic, Dynamic, 0, 0, 0> >(); 76 zeroSizedMatrix<Matrix<float, 0, 4> >(); 77 zeroSizedMatrix<Matrix<float, 4, 0> >(); 78 79 zeroSizedVector<Vector2d>(); 80 zeroSizedVector<Vector3i>(); 81 zeroSizedVector<VectorXf>(); 82 zeroSizedVector<Matrix<float, 0, 1> >(); 83 zeroSizedVector<Matrix<float, 1, 0> >(); 84 } 85
