106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
// 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>
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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>
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void zeroSizedMatrix() {
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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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zeroReduction(t1);
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if (MatrixType::RowsAtCompileTime == Dynamic) VERIFY(t1.rows() == 0);
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if (MatrixType::ColsAtCompileTime == Dynamic) VERIFY(t1.cols() == 0);
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if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic) {
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MatrixType t2(0, 0);
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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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Index rows = MatrixType::RowsAtCompileTime == Dynamic ? internal::random<Index>(1, 10)
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: Index(MatrixType::RowsAtCompileTime);
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Index cols = MatrixType::ColsAtCompileTime == Dynamic ? internal::random<Index>(1, 10)
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: 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) *
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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>
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void zeroSizedVector() {
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VectorType t1;
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if (VectorType::SizeAtCompileTime == Dynamic || VectorType::SizeAtCompileTime == 0) {
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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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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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