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Implement evaluators for sparse Block.

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This commit is contained in:
Gael Guennebaud
2014-06-25 09:58:26 +02:00
parent 17f119689e
commit e3ba5329ff
5 changed files with 175 additions and 7 deletions
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2
Eigen/src/Core/Block.h
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@@ -122,6 +122,8 @@ template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel> class
typedef Impl Base;
EIGEN_GENERIC_PUBLIC_INTERFACE(Block)
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Block)
typedef typename internal::remove_all<XprType>::type NestedExpression;
/** Column or Row constructor
*/

14
Eigen/src/Core/CoreEvaluators.h
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@@ -737,13 +737,25 @@ struct evaluator<Block<ArgType, BlockRows, BlockCols, InnerPanel> >
evaluator(const XprType& block) : block_evaluator_type(block) {}
};
// no direct-access => dispatch to a unary evaluator
template<typename ArgType, int BlockRows, int BlockCols, bool InnerPanel>
struct block_evaluator<ArgType, BlockRows, BlockCols, InnerPanel, /*HasDirectAccess*/ false>
: evaluator_base<Block<ArgType, BlockRows, BlockCols, InnerPanel> >
: unary_evaluator<Block<ArgType, BlockRows, BlockCols, InnerPanel> >
{
typedef Block<ArgType, BlockRows, BlockCols, InnerPanel> XprType;
block_evaluator(const XprType& block)
: unary_evaluator<XprType>(block)
{}
};
template<typename ArgType, int BlockRows, int BlockCols, bool InnerPanel>
struct unary_evaluator<Block<ArgType, BlockRows, BlockCols, InnerPanel>, IndexBased>
: evaluator_base<Block<ArgType, BlockRows, BlockCols, InnerPanel> >
{
typedef Block<ArgType, BlockRows, BlockCols, InnerPanel> XprType;
unary_evaluator(const XprType& block)
: m_argImpl(block.nestedExpression()),
m_startRow(block.startRow()),
m_startCol(block.startCol())