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Add missing nonZeros() overload in Block<SparseMatrixBase<>>

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This commit is contained in:
Gael Guennebaud 2013-11-10 15:26:07 +01:00
parent b93520b1a5
commit 5c2d1b4710
2 changed files with 20 additions and 7 deletions
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22
Eigen/src/SparseCore/SparseBlock.h
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@ -52,14 +52,24 @@ public:
inline BlockImpl(const XprType& xpr, int i)
: m_matrix(xpr), m_outerStart(i), m_outerSize(OuterSize)
{}
{std::cout << __LINE__ << "\n";}
inline BlockImpl(const XprType& xpr, int startRow, int startCol, int blockRows, int blockCols)
: m_matrix(xpr), m_outerStart(IsRowMajor ? startRow : startCol), m_outerSize(IsRowMajor ? blockRows : blockCols)
{}
{std::cout << __LINE__ << "\n";}
EIGEN_STRONG_INLINE Index rows() const { return IsRowMajor ? m_outerSize.value() : m_matrix.rows(); }
EIGEN_STRONG_INLINE Index cols() const { return IsRowMajor ? m_matrix.cols() : m_outerSize.value(); }
Index nonZeros() const
{
Index nnz = 0;
Index end = m_outerStart + m_outerSize.value();
for(int j=m_outerStart; j<end; ++j)
for(typename XprType::InnerIterator it(m_matrix, j); it; ++it)
++nnz;
return nnz;
}
protected:
@ -115,11 +125,11 @@ public:
inline BlockImpl(const SparseMatrixType& xpr, int i)
: m_matrix(xpr), m_outerStart(i), m_outerSize(OuterSize)
{}
{std::cout << __LINE__ << "\n";}
inline BlockImpl(const SparseMatrixType& xpr, int startRow, int startCol, int blockRows, int blockCols)
: m_matrix(xpr), m_outerStart(IsRowMajor ? startRow : startCol), m_outerSize(IsRowMajor ? blockRows : blockCols)
{}
{std::cout << __LINE__ << "\n";}
template<typename OtherDerived>
inline BlockType& operator=(const SparseMatrixBase<OtherDerived>& other)
@ -307,13 +317,13 @@ public:
m_startCol( (BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) ? i : 0),
m_blockRows(xpr.rows()),
m_blockCols(xpr.cols())
{}
{std::cout << __LINE__ << "\n";}
/** Dynamic-size constructor
*/
inline BlockImpl(const XprType& xpr, int startRow, int startCol, int blockRows, int blockCols)
: m_matrix(xpr), m_startRow(startRow), m_startCol(startCol), m_blockRows(blockRows), m_blockCols(blockCols)
{}
{std::cout << __LINE__ << "\n";}
inline int rows() const { return m_blockRows.value(); }
inline int cols() const { return m_blockCols.value(); }

5
test/sparse_basic.cpp
View File

@ -198,6 +198,8 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
if(j>0)
VERIFY(j==numext::real(m3.innerVector(j).lastCoeff()));
}
VERIFY(m3.innerVector(j0).nonZeros() == m3.transpose().innerVector(j0).nonZeros());
//m2.innerVector(j0) = 2*m2.innerVector(j1);
//refMat2.col(j0) = 2*refMat2.col(j1);
@ -227,6 +229,8 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
VERIFY_IS_APPROX(m2, refMat2);
VERIFY(m2.innerVectors(j0,n0).nonZeros() == m2.transpose().innerVectors(j0,n0).nonZeros());
m2.innerVectors(j0,n0) = m2.innerVectors(j0,n0) + m2.innerVectors(j1,n0);
if(SparseMatrixType::IsRowMajor)
refMat2.middleRows(j0,n0) = (refMat2.middleRows(j0,n0) + refMat2.middleRows(j1,n0)).eval();
@ -234,7 +238,6 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
refMat2.middleCols(j0,n0) = (refMat2.middleCols(j0,n0) + refMat2.middleCols(j1,n0)).eval();
VERIFY_IS_APPROX(m2, refMat2);
}
// test basic computations