// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2011 Gael Guennebaud <gael.guennebaud@inria.fr>
// Copyright (C) 2008 Daniel Gomez Ferro <dgomezferro@gmail.com>
// Copyright (C) 2013 Désiré Nuentsa-Wakam <desire.nuentsa_wakam@inria.fr>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
#ifndef EIGEN_SPARSE_TEST_INCLUDED_FROM_SPARSE_EXTRA
static long g_realloc_count =
0 ;
#define EIGEN_SPARSE_COMPRESSED_STORAGE_REALLOCATE_PLUGIN g_realloc_count++;
static long g_dense_op_sparse_count =
0 ;
#define EIGEN_SPARSE_ASSIGNMENT_FROM_DENSE_OP_SPARSE_PLUGIN g_dense_op_sparse_coun
t++;
#define EIGEN_SPARSE_ASSIGNMENT_FROM_SPARSE_ADD_DENSE_PLUGIN g_dense_op_sparse_count+=10 ;
#define EIGEN_SPARSE_ASSIGNMENT_FROM_SPARSE_SUB_DENSE_PLUGIN g_dense_op_sparse_count+=20 ;
#endif
#include "sparse.h"
template <typename SparseMatrixType> void sparse_basic(const SparseMatrixType& ref)
{
typedef typename SparseMatrixType::StorageIndex StorageIndex;
typedef Matrix<StorageIndex,2 ,1 > Vector2;
const Index rows = ref.rows();
const Index cols = ref.cols();
//const Index inner = ref.innerSize();
//const Index outer = ref.outerSize();
typedef typename SparseMatrixType::Scalar Scalar;
typedef typename SparseMatrixType::RealScalar RealScalar;
enum { Flags = SparseMatrixType::Flags };
double density = (std::max)(8 ./(rows*cols), 0 .01 );
typedef Matrix<Scalar,Dynamic,Dynamic> DenseMatrix;
typedef Matrix<Scalar,Dynamic,1 > DenseVector;
Scalar eps = 1 e-6 ;
Scalar s1 = internal::random<Scalar>();
{
SparseMatrixType m(rows, cols);
DenseMatrix refMat = DenseMatrix::Zero(rows, cols);
DenseVector vec1 = DenseVector::Random(rows);
std::vector<Vector2> zeroCoords;
std::vector<Vector2> nonzeroCoords;
initSparse<Scalar>(density, refMat, m, 0 , &zeroCoords, &nonzeroCoords);
// test coeff and coeffRef
for (std::size_t i=0 ; i<zeroCoords.size(); ++i)
{
VERIFY_IS_MUCH_SMALLER_THAN( m.coeff(zeroCoords[i].x(),zeroCoords[i].y()), eps );
if (internal::is_same<SparseMatrixType,SparseMatrix<Scalar,Flags> >::value)
VERIFY_RAISES_ASSERT( m.coeffRef(zeroCoords[i].x(),zeroCoords[i].y()) = 5 );
}
VERIFY_IS_APPROX(m, refMat);
if (!nonzeroCoords.empty()) {
m.coeffRef(nonzeroCoords[0 ].x(), nonzeroCoords[0 ].y()) = Scalar(5 );
refMat.coeffRef(nonzeroCoords[0 ].x(), nonzeroCoords[0 ].y()) = Scalar(5 );
}
VERIFY_IS_APPROX(m, refMat);
// test assertion
VERIFY_RAISES_ASSERT( m.coeffRef(-1 ,1 ) = 0 );
VERIFY_RAISES_ASSERT( m.coeffRef(0 ,m.cols()) = 0 );
}
// test insert (inner random)
{
DenseMatrix m1(rows,cols);
m1.setZero();
SparseMatrixType m2(rows,cols);
bool call_reserve = internal::random<int >()%2 ;
Index nnz = internal::random<int >(1 ,int (rows)/2 );
if (call_reserve)
{
if (internal::random<int >()%2 )
m2.reserve(VectorXi::Constant(m2.outerSize(), int (nnz)));
else
m2.reserve(m2.outerSize() * nnz);
}
g_realloc_count = 0 ;
for (Index j=0 ; j<cols; ++j)
{
for (Index k=0 ; k<nnz; ++k)
{
Index i = internal::random<Index>(0 ,rows-1 );
if (m1.coeff(i,j)==Scalar(0 ))
m2.insert(i,j) = m1(i,j) = internal::random<Scalar>();
}
}
if (call_reserve && !SparseMatrixType::IsRowMajor)
{
VERIFY(g_realloc_count==0 );
}
m2.finalize();
VERIFY_IS_APPROX(m2,m1);
}
// test insert (fully random)
{
DenseMatrix m1(rows,cols);
m1.setZero();
SparseMatrixType m2(rows,cols);
if (internal::random<int >()%2 )
m2.reserve(VectorXi::Constant(m2.outerSize(), 2 ));
for (int k=0 ; k<rows*cols; ++k)
{
Index i = internal::random<Index>(0 ,rows-1 );
Index j = internal::random<Index>(0 ,cols-1 );
if ((m1.coeff(i,j)==Scalar(0 )) && (internal::random<int >()%2 ))
m2.insert(i,j) = m1(i,j) = internal::random<Scalar>();
else
{
Scalar v = internal::random<Scalar>();
m2.coeffRef(i,j) += v;
m1(i,j) += v;
}
}
VERIFY_IS_APPROX(m2,m1);
}
// test insert (un-compressed)
for (int mode=0 ;mode<4 ;++mode)
{
DenseMatrix m1(rows,cols);
m1.setZero();
SparseMatrixType m2(rows,cols);
VectorXi r(VectorXi::Constant(m2.outerSize(), ((mode%2 )==0 ) ? int (m2.innerSize()) : std::max<int >(1 ,int (m2.innerSize())/8 )));
m2.reserve(r);
for (Index k=0 ; k<rows*cols; ++k)
{
Index i = internal::random<Index>(0 ,rows-1 );
Index j = internal::random<Index>(0 ,cols-1 );
if (m1.coeff(i,j)==Scalar(0 ))
m2.insert(i,j) = m1(i,j) = internal::random<Scalar>();
if (mode==3 )
m2.reserve(r);
}
if (internal::random<int >()%2 )
m2.makeCompressed();
VERIFY_IS_APPROX(m2,m1);
}
// test basic computations
{
DenseMatrix refM1 = DenseMatrix::Zero(rows, cols);
DenseMatrix refM2 = DenseMatrix::Zero(rows, cols);
DenseMatrix refM3 = DenseMatrix::Zero(rows, cols);
DenseMatrix refM4 = DenseMatrix::Zero(rows, cols);
SparseMatrixType m1(rows, cols);
SparseMatrixType m2(rows, cols);
SparseMatrixType m3(rows, cols);
SparseMatrixType m4(rows, cols);
initSparse<Scalar>(density, refM1, m1);
initSparse<Scalar>(density, refM2, m2);
initSparse<Scalar>(density, refM3, m3);
initSparse<Scalar>(density, refM4, m4);
if (internal::random<bool >())
m1.makeCompressed();
Index m1_nnz = m1.nonZeros();
VERIFY_IS_APPROX(m1*s1, refM1*s1);
VERIFY_IS_APPROX(m1+m2, refM1+refM2);
VERIFY_IS_APPROX(m1+m2+m3, refM1+refM2+refM3);
VERIFY_IS_APPROX(m3.cwiseProduct(m1+m2), refM3.cwiseProduct(refM1+refM2));
VERIFY_IS_APPROX(m1*s1-m2, refM1*s1-refM2);
VERIFY_IS_APPROX(m4=m1/s1, refM1/s1);
VERIFY_IS_EQUAL(m4.nonZeros(), m1_nnz);
if (SparseMatrixType::IsRowMajor)
VERIFY_IS_APPROX(m1.innerVector(0 ).dot(refM2.row(0 )), refM1.row(0 ).dot(refM2.row(0 )));
else
VERIFY_IS_APPROX(m1.innerVector(0 ).dot(refM2.col(0 )), refM1.col(0 ).dot(refM2.col(0 )));
DenseVector rv = DenseVector::Random(m1.cols());
DenseVector cv = DenseVector::Random(m1.rows());
Index r = internal::random<Index>(0 ,m1.rows()-2 );
Index c = internal::random<Index>(0 ,m1.cols()-1 );
VERIFY_IS_APPROX(( m1.template block<1 ,Dynamic>(r,0 ,1 ,m1.cols()).dot(rv)) , refM1.row(r).dot(rv));
VERIFY_IS_APPROX(m1.row(r).dot(rv), refM1.row(r).dot(rv));
VERIFY_IS_APPROX(m1.col(c).dot(cv), refM1.col(c).dot(cv));
VERIFY_IS_APPROX(m1.conjugate(), refM1.conjugate());
VERIFY_IS_APPROX(m1.real(), refM1.real());
refM4.setRandom();
// sparse cwise* dense
VERIFY_IS_APPROX(m3.cwiseProduct(refM4), refM3.cwiseProduct(refM4));
// dense cwise* sparse
VERIFY_IS_APPROX(refM4.cwiseProduct(m3), refM4.cwiseProduct(refM3));
// VERIFY_IS_APPROX(m3.cwise()/refM4, refM3.cwise()/refM4);
// mixed sparse-dense
VERIFY_IS_APPROX(refM4 + m3, refM4 + refM3);
VERIFY_IS_APPROX(m3 + refM4, refM3 + refM4);
VERIFY_IS_APPROX(refM4 - m3, refM4 - refM3);
VERIFY_IS_APPROX(m3 - refM4, refM3 - refM4);
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*m3).eval(), RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*refM3);
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + m3*RealScalar(0 .5 )).eval(), RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*refM3);
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + m3.cwiseProduct(m3)).eval(), RealScalar(0 .5 )*refM4 + refM3.cwiseProduct(refM3));
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*m3).eval(), RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*refM3);
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + m3*RealScalar(0 .5 )).eval(), RealScalar(0 .5 )*refM4 + RealScalar(0 .5 )*refM3);
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + (m3+m3)).eval(), RealScalar(0 .5 )*refM4 + (refM3+refM3));
VERIFY_IS_APPROX(((refM3+m3)+RealScalar(0 .5 )*m3).eval(), RealScalar(0 .5 )*refM3 + (refM3+refM3));
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + (refM3+m3)).eval(), RealScalar(0 .5 )*refM4 + (refM3+refM3));
VERIFY_IS_APPROX((RealScalar(0 .5 )*refM4 + (m3+refM3)).eval(), RealScalar(0 .5 )*refM4 + (refM3+refM3));
VERIFY_IS_APPROX(m1.sum(), refM1.sum());
m4 = m1; refM4 = m4;
VERIFY_IS_APPROX(m1*=s1, refM1*=s1);
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
VERIFY_IS_APPROX(m1/=s1, refM1/=s1);
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
VERIFY_IS_APPROX(m1+=m2, refM1+=refM2);
VERIFY_IS_APPROX(m1-=m2, refM1-=refM2);
refM3 = refM1;
VERIFY_IS_APPROX(refM1+=m2, refM3+=refM2);
VERIFY_IS_APPROX(refM1-=m2, refM3-=refM2);
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1 =m2+refM4, refM3 =refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,10 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1+=m2+refM4, refM3+=refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1-=m2+refM4, refM3-=refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1 =refM4+m2, refM3 =refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1+=refM4+m2, refM3+=refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1-=refM4+m2, refM3-=refM2+refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1 =m2-refM4, refM3 =refM2-refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,20 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1+=m2-refM4, refM3+=refM2-refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1-=m2-refM4, refM3-=refM2-refM4); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1 =refM4-m2, refM3 =refM4-refM2); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1+=refM4-m2, refM3+=refM4-refM2); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
g_dense_op_sparse_count=0 ; VERIFY_IS_APPROX(refM1-=refM4-m2, refM3-=refM4-refM2); VERIFY_IS_EQUAL(g_dense_op_sparse_count,1 );
refM3 = m3;
if (rows>=2 && cols>=2 )
{
VERIFY_RAISES_ASSERT( m1 += m1.innerVector(0 ) );
VERIFY_RAISES_ASSERT( m1 -= m1.innerVector(0 ) );
VERIFY_RAISES_ASSERT( refM1 -= m1.innerVector(0 ) );
VERIFY_RAISES_ASSERT( refM1 += m1.innerVector(0 ) );
}
m1 = m4; refM1 = refM4;
// test aliasing
VERIFY_IS_APPROX((m1 = -m1), (refM1 = -refM1));
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
m1 = m4; refM1 = refM4;
VERIFY_IS_APPROX((m1 = m1.transpose()), (refM1 = refM1.transpose().eval()));
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
m1 = m4; refM1 = refM4;
VERIFY_IS_APPROX((m1 = -m1.transpose()), (refM1 = -refM1.transpose().eval()));
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
m1 = m4; refM1 = refM4;
VERIFY_IS_APPROX((m1 += -m1), (refM1 += -refM1));
VERIFY_IS_EQUAL(m1.nonZeros(), m1_nnz);
m1 = m4; refM1 = refM4;
if (m1.isCompressed())
{
VERIFY_IS_APPROX(m1.coeffs().sum(), m1.sum());
m1.coeffs() += s1;
for (Index j = 0 ; j<m1.outerSize(); ++j)
for (typename SparseMatrixType::InnerIterator it(m1,j); it; ++it)
refM1(it.row(), it.col()) += s1;
VERIFY_IS_APPROX(m1, refM1);
}
// and/or
{
typedef SparseMatrix<bool , SparseMatrixType::Options, typename SparseMatrixType::StorageIndex> SpBool;
SpBool mb1 = m1.real().template cast<bool >();
SpBool mb2 = m2.real().template cast<bool >();
VERIFY_IS_EQUAL(mb1.template cast<int >().sum(), refM1.real().template cast<bool >().count());
VERIFY_IS_EQUAL((mb1 && mb2).template cast<int >().sum(), (refM1.real().template cast<bool >() && refM2.real().template cast<bool >()).count());
VERIFY_IS_EQUAL((mb1 || mb2).template cast<int >().sum(), (refM1.real().template cast<bool >() || refM2.real().template cast<bool >()).count());
SpBool mb3 = mb1 && mb2;
if (mb1.coeffs().all() && mb2.coeffs().all())
{
VERIFY_IS_EQUAL(mb3.nonZeros(), (refM1.real().template cast<bool >() && refM2.real().template cast<bool >()).count());
}
}
}
// test reverse iterators
{
DenseMatrix refMat2 = DenseMatrix::Zero(rows, cols);
SparseMatrixType m2(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
std::vector<Scalar> ref_value(m2.innerSize());
std::vector<Index> ref_index(m2.innerSize());
if (internal::random<bool >())
m2.makeCompressed();
for (Index j = 0 ; j<m2.outerSize(); ++j)
{
Index count_forward = 0 ;
for (typename SparseMatrixType::InnerIterator it(m2,j); it; ++it)
{
ref_value[ref_value.size()-1 -count_forward] = it.value();
ref_index[ref_index.size()-1 -count_forward] = it.index();
count_forward++;
}
Index count_reverse = 0 ;
for (typename SparseMatrixType::ReverseInnerIterator it(m2,j); it; --it)
{
VERIFY_IS_APPROX( std::abs(ref_value[ref_value.size()-count_forward+count_reverse])+1 , std::abs(it.value())+1 );
VERIFY_IS_EQUAL( ref_index[ref_index.size()-count_forward+count_reverse] , it.index());
count_reverse++;
}
VERIFY_IS_EQUAL(count_forward, count_reverse);
}
}
// test transpose
{
DenseMatrix refMat2 = DenseMatrix::Zero(rows, cols);
SparseMatrixType m2(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
VERIFY_IS_APPROX(m2.transpose().eval(), refMat2.transpose().eval());
VERIFY_IS_APPROX(m2.transpose(), refMat2.transpose());
VERIFY_IS_APPROX(SparseMatrixType(m2.adjoint()), refMat2.adjoint());
// check isApprox handles opposite storage order
typename Transpose<SparseMatrixType>::PlainObject m3(m2);
VERIFY(m2.isApprox(m3));
}
// test prune
{
SparseMatrixType m2(rows, cols);
DenseMatrix refM2(rows, cols);
refM2.setZero();
int countFalseNonZero = 0 ;
int countTrueNonZero = 0 ;
m2.reserve(VectorXi::Constant(m2.outerSize(), int (m2.innerSize())));
for (Index j=0 ; j<m2.cols(); ++j)
{
for (Index i=0 ; i<m2.rows(); ++i)
{
float x = internal::random<float >(0 ,1 );
if (x<0 .1 f)
{
// do nothing
}
else if (x<0 .5 f)
{
countFalseNonZero++;
m2.insert(i,j) = Scalar(0 );
}
else
{
countTrueNonZero++;
m2.insert(i,j) = Scalar(1 );
refM2(i,j) = Scalar(1 );
}
}
}
if (internal::random<bool >())
m2.makeCompressed();
VERIFY(countFalseNonZero+countTrueNonZero == m2.nonZeros());
if (countTrueNonZero>0 )
VERIFY_IS_APPROX(m2, refM2);
m2.prune(Scalar(1 ));
VERIFY(countTrueNonZero==m2.nonZeros());
VERIFY_IS_APPROX(m2, refM2);
}
// test setFromTriplets
{
typedef Triplet<Scalar,StorageIndex> TripletType;
std::vector<TripletType> triplets;
Index ntriplets = rows*cols;
triplets.reserve(ntriplets);
DenseMatrix refMat_sum = DenseMatrix::Zero(rows,cols);
DenseMatrix refMat_prod = DenseMatrix::Zero(rows,cols);
DenseMatrix refMat_last = DenseMatrix::Zero(rows,cols);
for (Index i=0 ;i<ntriplets;++i)
{
StorageIndex r = internal::random<StorageIndex>(0 ,StorageIndex(rows-1 ));
StorageIndex c = internal::random<StorageIndex>(0 ,StorageIndex(cols-1 ));
Scalar v = internal::random<Scalar>();
triplets.push_back(TripletType(r,c,v));
refMat_sum(r,c) += v;
if (std::abs(refMat_prod(r,c))==0 )
refMat_prod(r,c) = v;
else
refMat_prod(r,c) *= v;
refMat_last(r,c) = v;
}
SparseMatrixType m(rows,cols);
m.setFromTriplets(triplets.begin(), triplets.end());
VERIFY_IS_APPROX(m, refMat_sum);
m.setFromTriplets(triplets.begin(), triplets.end(), std::multiplies<Scalar>());
VERIFY_IS_APPROX(m, refMat_prod);
#if (EIGEN_COMP_CXXVER >= 11 )
m.setFromTriplets(triplets.begin(), triplets.end(), [] (Scalar,Scalar b) { return b; });
VERIFY_IS_APPROX(m, refMat_last);
#endif
}
// test Map
{
DenseMatrix refMat2(rows, cols), refMat3(rows, cols);
SparseMatrixType m2(rows, cols), m3(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
initSparse<Scalar>(density, refMat3, m3);
{
Map<SparseMatrixType> mapMat2(m2.rows(), m2.cols(), m2.nonZeros(), m2.outerIndexPtr(), m2.innerIndexPtr(), m2.valuePtr(), m2.innerNonZeroPtr());
Map<SparseMatrixType> mapMat3(m3.rows(), m3.cols(), m3.nonZeros(), m3.outerIndexPtr(), m3.innerIndexPtr(), m3.valuePtr(), m3.innerNonZeroPtr());
VERIFY_IS_APPROX(mapMat2+mapMat3, refMat2+refMat3);
VERIFY_IS_APPROX(mapMat2+mapMat3, refMat2+refMat3);
}
{
MappedSparseMatrix<Scalar,SparseMatrixType::Options,StorageIndex> mapMat2(m2.rows(), m2.cols(), m2.nonZeros(), m2.outerIndexPtr(), m2.innerIndexPtr(), m2.valuePtr(), m2.innerNonZeroPtr());
MappedSparseMatrix<Scalar,SparseMatrixType::Options,StorageIndex> mapMat3(m3.rows(), m3.cols(), m3.nonZeros(), m3.outerIndexPtr(), m3.innerIndexPtr(), m3.valuePtr(), m3.innerNonZeroPtr());
VERIFY_IS_APPROX(mapMat2+mapMat3, refMat2+refMat3);
VERIFY_IS_APPROX(mapMat2+mapMat3, refMat2+refMat3);
}
Index i = internal::random<Index>(0 ,rows-1 );
Index j = internal::random<Index>(0 ,cols-1 );
m2.coeffRef(i,j) = 123 ;
if (internal::random<bool >())
m2.makeCompressed();
Map<SparseMatrixType> mapMat2(rows, cols, m2.nonZeros(), m2.outerIndexPtr(), m2.innerIndexPtr(), m2.valuePtr(), m2.innerNonZeroPtr());
VERIFY_IS_EQUAL(m2.coeff(i,j),Scalar(123 ));
VERIFY_IS_EQUAL(mapMat2.coeff(i,j),Scalar(123 ));
mapMat2.coeffRef(i,j) = -123 ;
VERIFY_IS_EQUAL(m2.coeff(i,j),Scalar(-123 ));
}
// test triangularView
{
DenseMatrix refMat2(rows, cols), refMat3(rows, cols);
SparseMatrixType m2(rows, cols), m3(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
refMat3 = refMat2.template triangularView<Lower>();
m3 = m2.template triangularView<Lower>();
VERIFY_IS_APPROX(m3, refMat3);
refMat3 = refMat2.template triangularView<Upper>();
m3 = m2.template triangularView<Upper>();
VERIFY_IS_APPROX(m3, refMat3);
{
refMat3 = refMat2.template triangularView<UnitUpper>();
m3 = m2.template triangularView<UnitUpper>();
VERIFY_IS_APPROX(m3, refMat3);
refMat3 = refMat2.template triangularView<UnitLower>();
m3 = m2.template triangularView<UnitLower>();
VERIFY_IS_APPROX(m3, refMat3);
}
refMat3 = refMat2.template triangularView<StrictlyUpper>();
m3 = m2.template triangularView<StrictlyUpper>();
VERIFY_IS_APPROX(m3, refMat3);
refMat3 = refMat2.template triangularView<StrictlyLower>();
m3 = m2.template triangularView<StrictlyLower>();
VERIFY_IS_APPROX(m3, refMat3);
// check sparse-triangular to dense
refMat3 = m2.template triangularView<StrictlyUpper>();
VERIFY_IS_APPROX(refMat3, DenseMatrix(refMat2.template triangularView<StrictlyUpper>()));
}
// test selfadjointView
if (!SparseMatrixType::IsRowMajor)
{
DenseMatrix refMat2(rows, rows), refMat3(rows, rows);
SparseMatrixType m2(rows, rows), m3(rows, rows);
initSparse<Scalar>(density, refMat2, m2);
refMat3 = refMat2.template selfadjointView<Lower>();
m3 = m2.template selfadjointView<Lower>();
VERIFY_IS_APPROX(m3, refMat3);
refMat3 += refMat2.template selfadjointView<Lower>();
m3 += m2.template selfadjointView<Lower>();
VERIFY_IS_APPROX(m3, refMat3);
refMat3 -= refMat2.template selfadjointView<Lower>();
m3 -= m2.template selfadjointView<Lower>();
VERIFY_IS_APPROX(m3, refMat3);
// selfadjointView only works for square matrices:
SparseMatrixType m4(rows, rows+1 );
VERIFY_RAISES_ASSERT(m4.template selfadjointView<Lower>());
VERIFY_RAISES_ASSERT(m4.template selfadjointView<Upper>());
}
// test sparseView
{
DenseMatrix refMat2 = DenseMatrix::Zero(rows, rows);
SparseMatrixType m2(rows, rows);
initSparse<Scalar>(density, refMat2, m2);
VERIFY_IS_APPROX(m2.eval(), refMat2.sparseView().eval());
// sparse view on expressions:
VERIFY_IS_APPROX((s1*m2).eval(), (s1*refMat2).sparseView().eval());
VERIFY_IS_APPROX((m2+m2).eval(), (refMat2+refMat2).sparseView().eval());
VERIFY_IS_APPROX((m2*m2).eval(), (refMat2.lazyProduct(refMat2)).sparseView().eval());
VERIFY_IS_APPROX((m2*m2).eval(), (refMat2*refMat2).sparseView().eval());
}
// test diagonal
{
DenseMatrix refMat2 = DenseMatrix::Zero(rows, cols);
SparseMatrixType m2(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
VERIFY_IS_APPROX(m2.diagonal(), refMat2.diagonal().eval());
DenseVector d = m2.diagonal();
VERIFY_IS_APPROX(d, refMat2.diagonal().eval());
d = m2.diagonal().array();
VERIFY_IS_APPROX(d, refMat2.diagonal().eval());
VERIFY_IS_APPROX(const_cast <const SparseMatrixType&>(m2).diagonal(), refMat2.diagonal().eval());
initSparse<Scalar>(density, refMat2, m2, ForceNonZeroDiag);
m2.diagonal() += refMat2.diagonal();
refMat2.diagonal() += refMat2.diagonal();
VERIFY_IS_APPROX(m2, refMat2);
}
// test diagonal to sparse
{
DenseVector d = DenseVector::Random(rows);
DenseMatrix refMat2 = d.asDiagonal();
SparseMatrixType m2;
m2 = d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
SparseMatrixType m3(d.asDiagonal());
VERIFY_IS_APPROX(m3, refMat2);
refMat2 += d.asDiagonal();
m2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
m2.setZero(); m2 += d.asDiagonal();
refMat2.setZero(); refMat2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
m2.setZero(); m2 -= d.asDiagonal();
refMat2.setZero(); refMat2 -= d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
initSparse<Scalar>(density, refMat2, m2);
m2.makeCompressed();
m2 += d.asDiagonal();
refMat2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
initSparse<Scalar>(density, refMat2, m2);
m2.makeCompressed();
VectorXi res(rows);
for (Index i=0 ; i<rows; ++i)
res(i) = internal::random<int >(0 ,3 );
m2.reserve(res);
m2 -= d.asDiagonal();
refMat2 -= d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
}
// test conservative resize
{
std::vector< std::pair<StorageIndex,StorageIndex> > inc;
if (rows > 3 && cols > 2 )
inc.push_back(std::pair<StorageIndex,StorageIndex>(-3 ,-2 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(0 ,0 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(3 ,2 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(3 ,0 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(0 ,3 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(0 ,-1 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(-1 ,0 ));
inc.push_back(std::pair<StorageIndex,StorageIndex>(-1 ,-1 ));
for (size_t i = 0 ; i< inc.size(); i++) {
StorageIndex incRows = inc[i].first;
StorageIndex incCols = inc[i].second;
SparseMatrixType m1(rows, cols);
DenseMatrix refMat1 = DenseMatrix::Zero(rows, cols);
initSparse<Scalar>(density, refMat1, m1);
SparseMatrixType m2 = m1;
m2.makeCompressed();
m1.conservativeResize(rows+incRows, cols+incCols);
m2.conservativeResize(rows+incRows, cols+incCols);
refMat1.conservativeResize(rows+incRows, cols+incCols);
if (incRows > 0 ) refMat1.bottomRows(incRows).setZero();
if (incCols > 0 ) refMat1.rightCols(incCols).setZero();
VERIFY_IS_APPROX(m1, refMat1);
VERIFY_IS_APPROX(m2, refMat1);
// Insert new values
if (incRows > 0 )
m1.insert(m1.rows()-1 , 0 ) = refMat1(refMat1.rows()-1 , 0 ) = 1 ;
if (incCols > 0 )
m1.insert(0 , m1.cols()-1 ) = refMat1(0 , refMat1.cols()-1 ) = 1 ;
VERIFY_IS_APPROX(m1, refMat1);
}
}
// test Identity matrix
{
DenseMatrix refMat1 = DenseMatrix::Identity(rows, rows);
SparseMatrixType m1(rows, rows);
m1.setIdentity();
VERIFY_IS_APPROX(m1, refMat1);
for (int k=0 ; k<rows*rows/4 ; ++k)
{
Index i = internal::random<Index>(0 ,rows-1 );
Index j = internal::random<Index>(0 ,rows-1 );
Scalar v = internal::random<Scalar>();
m1.coeffRef(i,j) = v;
refMat1.coeffRef(i,j) = v;
VERIFY_IS_APPROX(m1, refMat1);
if (internal::random<Index>(0 ,10 )<2 )
m1.makeCompressed();
}
m1.setIdentity();
refMat1.setIdentity();
VERIFY_IS_APPROX(m1, refMat1);
}
// test array/vector of InnerIterator
{
typedef typename SparseMatrixType::InnerIterator IteratorType;
DenseMatrix refMat2 = DenseMatrix::Zero(rows, cols);
SparseMatrixType m2(rows, cols);
initSparse<Scalar>(density, refMat2, m2);
IteratorType static_array[2 ];
static_array[0 ] = IteratorType(m2,0 );
static_array[1 ] = IteratorType(m2,m2.outerSize()-1 );
VERIFY( static_array[0 ] || m2.innerVector(static_array[0 ].outer()).nonZeros() == 0 );
VERIFY( static_array[1 ] || m2.innerVector(static_array[1 ].outer()).nonZeros() == 0 );
if (static_array[0 ] && static_array[1 ])
{
++(static_array[1 ]);
static_array[1 ] = IteratorType(m2,0 );
VERIFY( static_array[1 ] );
VERIFY( static_array[1 ].index() == static_array[0 ].index() );
VERIFY( static_array[1 ].outer() == static_array[0 ].outer() );
VERIFY( static_array[1 ].value() == static_array[0 ].value() );
}
std::vector<IteratorType> iters(2 );
iters[0 ] = IteratorType(m2,0 );
iters[1 ] = IteratorType(m2,m2.outerSize()-1 );
}
// test reserve with empty rows/columns
{
SparseMatrixType m1(0 ,cols);
m1.reserve(ArrayXi::Constant(m1.outerSize(),1 ));
SparseMatrixType m2(rows,0 );
m2.reserve(ArrayXi::Constant(m2.outerSize(),1 ));
}
}
template <typename SparseMatrixType>
void big_sparse_triplet(Index rows, Index cols, double density) {
typedef typename SparseMatrixType::StorageIndex StorageIndex;
typedef typename SparseMatrixType::Scalar Scalar;
typedef Triplet<Scalar,Index> TripletType;
std::vector<TripletType> triplets;
double nelements = density * rows*cols;
VERIFY(nelements>=0 && nelements < static_cast <double >(NumTraits<StorageIndex>::highest()));
Index ntriplets = Index(nelements);
triplets.reserve(ntriplets);
Scalar sum = Scalar(0 );
for (Index i=0 ;i<ntriplets;++i)
{
Index r = internal::random<Index>(0 ,rows-1 );
Index c = internal::random<Index>(0 ,cols-1 );
// use positive values to prevent numerical cancellation errors in sum
Scalar v = numext::abs(internal::random<Scalar>());
triplets.push_back(TripletType(r,c,v));
sum += v;
}
SparseMatrixType m(rows,cols);
m.setFromTriplets(triplets.begin(), triplets.end());
VERIFY(m.nonZeros() <= ntriplets);
VERIFY_IS_APPROX(sum, m.sum());
}
template <int >
void bug1105()
{
// Regression test for bug 1105
int n = Eigen::internal::random<int >(200 ,600 );
SparseMatrix<std::complex<double >,0 , long > mat(n, n);
std::complex<double > val;
for (int i=0 ; i<n; ++i)
{
mat.coeffRef(i, i%(n/10 )) = val;
VERIFY(mat.data().allocatedSize()<20 *n);
}
}
#ifndef EIGEN_SPARSE_TEST_INCLUDED_FROM_SPARSE_EXTRA
EIGEN_DECLARE_TEST(sparse_basic)
{
g_dense_op_sparse_count = 0 ; // Suppresses compiler warning.
for (int i = 0 ; i < g_repeat; i++) {
int r = Eigen::internal::random<int >(1 ,200 ), c = Eigen::internal::random<int >(1 ,200 );
if (Eigen::internal::random<int >(0 ,4 ) == 0 ) {
r = c; // check square matrices in 25% of tries
}
EIGEN_UNUSED_VARIABLE(r+c);
CALL_SUBTEST_1(( sparse_basic(SparseMatrix<double >(1 , 1 )) ));
CALL_SUBTEST_1(( sparse_basic(SparseMatrix<double >(8 , 8 )) ));
CALL_SUBTEST_2(( sparse_basic(SparseMatrix<std::complex<double >, ColMajor>(r, c)) ));
CALL_SUBTEST_2(( sparse_basic(SparseMatrix<std::complex<double >, RowMajor>(r, c)) ));
CALL_SUBTEST_1(( sparse_basic(SparseMatrix<double >(r, c)) ));
CALL_SUBTEST_5(( sparse_basic(SparseMatrix<double ,ColMajor,long int >(r, c)) ));
CALL_SUBTEST_5(( sparse_basic(SparseMatrix<double ,RowMajor,long int >(r, c)) ));
r = Eigen::internal::random<int >(1 ,100 );
c = Eigen::internal::random<int >(1 ,100 );
if (Eigen::internal::random<int >(0 ,4 ) == 0 ) {
r = c; // check square matrices in 25% of tries
}
CALL_SUBTEST_6(( sparse_basic(SparseMatrix<double ,ColMajor,short int >(short (r), short (c))) ));
CALL_SUBTEST_6(( sparse_basic(SparseMatrix<double ,RowMajor,short int >(short (r), short (c))) ));
}
// Regression test for bug 900: (manually insert higher values here, if you have enough RAM):
CALL_SUBTEST_3((big_sparse_triplet<SparseMatrix<float , RowMajor, int > >(10000 , 10000 , 0 .125 )));
CALL_SUBTEST_4((big_sparse_triplet<SparseMatrix<double , ColMajor, long int > >(10000 , 10000 , 0 .125 )));
CALL_SUBTEST_7( bug1105<0 >() );
}
#endif
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