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Implement swap using evaluators.

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This commit is contained in:
Jitse Niesen
2011-04-28 15:52:15 +01:00
parent 2d11041e24
commit 3b60d2dbc4
4 changed files with 107 additions and 5 deletions
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12
Eigen/src/Core/AssignEvaluator.h
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@@ -404,7 +404,7 @@ struct copy_using_evaluator_impl<DstXprType, SrcXprType, LinearVectorizedTravers
dstAlignment = PacketTraits::AlignedOnScalar ? Aligned : dstIsAligned,
srcAlignment = copy_using_evaluator_traits<DstXprType,SrcXprType>::JointAlignment
};
const Index alignedStart = dstIsAligned ? 0 : first_aligned(&dst.coeffRef(0), size);
const Index alignedStart = dstIsAligned ? 0 : first_aligned(&dstEvaluator.coeffRef(0), size);
const Index alignedEnd = alignedStart + ((size-alignedStart)/packetSize)*packetSize;
unaligned_copy_using_evaluator_impl<dstIsAligned!=0>::run(dstEvaluator, srcEvaluator, 0, alignedStart);
@@ -614,6 +614,16 @@ const DstXprType& copy_using_evaluator(const DstXprType& dst, const SrcXprType&
return dst;
}
// Based on DenseBase::swap()
// TODO: Chech whether we need to do something special for swapping two
// Arrays or Matrices.
template<typename DstXprType, typename SrcXprType>
void swap_using_evaluator(const DstXprType& dst, const SrcXprType& src)
{
copy_using_evaluator(SwapWrapper<DstXprType>(const_cast<DstXprType&>(dst)), src);
}
} // namespace internal
#endif // EIGEN_ASSIGN_EVALUATOR_H