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evaluate 1D sparse expressions into SparseVector and make the sparse operator<< and dot honor nested types

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This commit is contained in:
Gael Guennebaud
2011-12-22 14:01:06 +01:00
parent 7f04845023
commit 2c03e6fccc
5 changed files with 56 additions and 16 deletions
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34
Eigen/src/SparseCore/SparseUtil.h
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@@ -103,17 +103,39 @@ template<typename Lhs, typename Rhs, int InnerSize = internal::traits<Lhs>::Cols
namespace internal {
template<typename T> struct eval<T,Sparse>
{
typedef typename traits<T>::Scalar _Scalar;
enum {
_Flags = traits<T>::Flags
};
template<typename T,int Rows,int Cols> struct sparse_eval;
template<typename T> struct eval<T,Sparse>
: public sparse_eval<T, traits<T>::RowsAtCompileTime,traits<T>::ColsAtCompileTime>
{};
template<typename T,int Cols> struct sparse_eval<T,1,Cols> {
typedef typename traits<T>::Scalar _Scalar;
enum { _Flags = traits<T>::Flags| RowMajorBit };
public:
typedef SparseVector<_Scalar, _Flags> type;
};
template<typename T,int Rows> struct sparse_eval<T,Rows,1> {
typedef typename traits<T>::Scalar _Scalar;
enum { _Flags = traits<T>::Flags & (~RowMajorBit) };
public:
typedef SparseVector<_Scalar, _Flags> type;
};
template<typename T,int Rows,int Cols> struct sparse_eval {
typedef typename traits<T>::Scalar _Scalar;
enum { _Flags = traits<T>::Flags };
public:
typedef SparseMatrix<_Scalar, _Flags> type;
};
template<typename T> struct sparse_eval<T,1,1> {
typedef typename traits<T>::Scalar _Scalar;
public:
typedef Matrix<_Scalar, 1, 1> type;
};
template<typename T> struct plain_matrix_type<T,Sparse>
{
typedef typename traits<T>::Scalar _Scalar;