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optimize SparseMatrix iterator

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This commit is contained in:
Gael Guennebaud 2010-06-18 16:47:41 +02:00
parent f0a6d56f07
commit f85a1cf5df
1 changed files with 7 additions and 13 deletions
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20
Eigen/src/Sparse/SparseMatrix.h
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@ -581,32 +581,26 @@ class SparseMatrix<Scalar,_Options,_Index>::InnerIterator
{
public:
InnerIterator(const SparseMatrix& mat, Index outer)
: m_matrix(mat), m_outer(outer), m_id(mat.m_outerIndex[outer]), m_start(m_id), m_end(mat.m_outerIndex[outer+1])
{}
template<unsigned int Added, unsigned int Removed>
InnerIterator(const Flagged<SparseMatrix,Added,Removed>& mat, Index outer)
: m_matrix(mat._expression()), m_outer(outer), m_id(m_matrix.m_outerIndex[outer]),
m_start(m_id), m_end(m_matrix.m_outerIndex[outer+1])
: m_values(mat._valuePtr()), m_indices(mat._innerIndexPtr()), m_outer(outer), m_id(mat.m_outerIndex[outer]), m_end(mat.m_outerIndex[outer+1])
{}
inline InnerIterator& operator++() { m_id++; return *this; }
inline Scalar value() const { return m_matrix.m_data.value(m_id); }
inline Scalar& valueRef() { return const_cast<Scalar&>(m_matrix.m_data.value(m_id)); }
inline const Scalar& value() const { return m_values[m_id]; }
inline Scalar& valueRef() { return const_cast<Scalar&>(m_values[m_id]); }
inline Index index() const { return m_matrix.m_data.index(m_id); }
inline Index index() const { return m_indices[m_id]; }
inline Index outer() const { return m_outer; }
inline Index row() const { return IsRowMajor ? m_outer : index(); }
inline Index col() const { return IsRowMajor ? index() : m_outer; }
inline operator bool() const { return (m_id < m_end) && (m_id>=m_start); }
inline operator bool() const { return (m_id < m_end); }
protected:
const SparseMatrix& m_matrix;
const Scalar* m_values;
const Index* m_indices;
const Index m_outer;
Index m_id;
const Index m_start;
const Index m_end;
};