112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "main.h"
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template<typename MatrixType> void zeroReduction(const MatrixType& m) {
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// Reductions that must hold for zero sized objects
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VERIFY(m.all());
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VERIFY(!m.any());
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VERIFY(m.prod()==1);
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VERIFY(m.sum()==0);
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VERIFY(m.norm()==0);
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VERIFY(m.squaredNorm()==0);
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VERIFY(m.count()==0);
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VERIFY(m.allFinite());
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VERIFY(!m.hasNaN());
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VERIFY_RAISES_ASSERT( m.minCoeff() );
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VERIFY_RAISES_ASSERT( m.maxCoeff() );
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Index i,j;
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VERIFY_RAISES_ASSERT( m.minCoeff(&i,&j) );
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VERIFY_RAISES_ASSERT( m.maxCoeff(&i,&j) );
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VERIFY_RAISES_ASSERT( m.reshaped().minCoeff(&i) );
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VERIFY_RAISES_ASSERT( m.reshaped().maxCoeff(&i) );
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}
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template<typename MatrixType> void zeroSizedMatrix()
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{
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MatrixType t1;
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typedef typename MatrixType::Scalar Scalar;
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if (MatrixType::SizeAtCompileTime == Dynamic || MatrixType::SizeAtCompileTime == 0)
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{
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zeroReduction(t1);
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if (MatrixType::RowsAtCompileTime == Dynamic)
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VERIFY(t1.rows() == 0);
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if (MatrixType::ColsAtCompileTime == Dynamic)
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VERIFY(t1.cols() == 0);
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if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
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{
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MatrixType t2(0, 0), t3(t1);
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VERIFY(t2.rows() == 0);
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VERIFY(t2.cols() == 0);
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zeroReduction(t2);
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VERIFY(t1==t2);
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}
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}
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if(MatrixType::MaxColsAtCompileTime!=0 && MatrixType::MaxRowsAtCompileTime!=0)
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{
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Index rows = MatrixType::RowsAtCompileTime==Dynamic ? internal::random<Index>(1,10) : Index(MatrixType::RowsAtCompileTime);
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Index cols = MatrixType::ColsAtCompileTime==Dynamic ? internal::random<Index>(1,10) : Index(MatrixType::ColsAtCompileTime);
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MatrixType m(rows,cols);
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zeroReduction(m.template block<0,MatrixType::ColsAtCompileTime>(0,0,0,cols));
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zeroReduction(m.template block<MatrixType::RowsAtCompileTime,0>(0,0,rows,0));
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zeroReduction(m.template block<0,1>(0,0));
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zeroReduction(m.template block<1,0>(0,0));
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Matrix<Scalar,Dynamic,Dynamic> prod = m.template block<MatrixType::RowsAtCompileTime,0>(0,0,rows,0) * m.template block<0,MatrixType::ColsAtCompileTime>(0,0,0,cols);
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VERIFY(prod.rows()==rows && prod.cols()==cols);
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VERIFY(prod.isZero());
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prod = m.template block<1,0>(0,0) * m.template block<0,1>(0,0);
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VERIFY(prod.size()==1);
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VERIFY(prod.isZero());
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}
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}
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template<typename VectorType> void zeroSizedVector()
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{
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VectorType t1;
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if (VectorType::SizeAtCompileTime == Dynamic || VectorType::SizeAtCompileTime==0)
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{
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zeroReduction(t1);
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VERIFY(t1.size() == 0);
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VectorType t2(DenseIndex(0)); // DenseIndex disambiguates with 0-the-null-pointer (error with gcc 4.4 and MSVC8)
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VERIFY(t2.size() == 0);
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zeroReduction(t2);
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VERIFY(t1==t2);
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}
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}
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EIGEN_DECLARE_TEST(zerosized)
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{
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zeroSizedMatrix<Matrix2d>();
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zeroSizedMatrix<Matrix3i>();
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zeroSizedMatrix<Matrix<float, 2, Dynamic> >();
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zeroSizedMatrix<MatrixXf>();
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zeroSizedMatrix<Matrix<float, 0, 0> >();
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zeroSizedMatrix<Matrix<float, Dynamic, 0, 0, 0, 0> >();
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zeroSizedMatrix<Matrix<float, 0, Dynamic, 0, 0, 0> >();
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zeroSizedMatrix<Matrix<float, Dynamic, Dynamic, 0, 0, 0> >();
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zeroSizedMatrix<Matrix<float, 0, 4> >();
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zeroSizedMatrix<Matrix<float, 4, 0> >();
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zeroSizedVector<Vector2d>();
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zeroSizedVector<Vector3i>();
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zeroSizedVector<VectorXf>();
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zeroSizedVector<Matrix<float, 0, 1> >();
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zeroSizedVector<Matrix<float, 1, 0> >();
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}
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