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https://gitlab.com/libeigen/eigen.git
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1- Introduce sub-evaluator types for unary, binary, product, and map expressions to ease specializing them.
2- Remove a lot of code which should not be there with evaluators, in particular coeff/packet methods implemented in the expressions.
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@@ -344,6 +344,9 @@ class BlockImpl_dense<XprType,BlockRows,BlockCols, InnerPanel,true>
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: public MapBase<Block<XprType, BlockRows, BlockCols, InnerPanel> >
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{
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typedef Block<XprType, BlockRows, BlockCols, InnerPanel> BlockType;
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enum {
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XprTypeIsRowMajor = (int(traits<XprType>::Flags)&RowMajorBit) != 0
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};
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public:
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typedef MapBase<BlockType> Base;
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@@ -354,9 +357,8 @@ class BlockImpl_dense<XprType,BlockRows,BlockCols, InnerPanel,true>
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*/
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EIGEN_DEVICE_FUNC
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inline BlockImpl_dense(XprType& xpr, Index i)
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: Base(internal::const_cast_ptr(&xpr.coeffRef(
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(BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) ? i : 0,
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(BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) ? i : 0)),
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: Base(xpr.data() + i * ( ((BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) && (!XprTypeIsRowMajor))
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|| ((BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) && ( XprTypeIsRowMajor)) ? xpr.innerStride() : xpr.outerStride()),
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BlockRows==1 ? 1 : xpr.rows(),
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BlockCols==1 ? 1 : xpr.cols()),
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m_xpr(xpr)
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@@ -368,7 +370,8 @@ class BlockImpl_dense<XprType,BlockRows,BlockCols, InnerPanel,true>
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*/
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EIGEN_DEVICE_FUNC
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inline BlockImpl_dense(XprType& xpr, Index startRow, Index startCol)
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: Base(internal::const_cast_ptr(&xpr.coeffRef(startRow,startCol))), m_xpr(xpr)
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: Base(xpr.data()+xpr.innerStride()*(XprTypeIsRowMajor?startCol:startRow) + xpr.outerStride()*(XprTypeIsRowMajor?startRow:startCol)),
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m_xpr(xpr)
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{
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init();
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}
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@@ -379,7 +382,7 @@ class BlockImpl_dense<XprType,BlockRows,BlockCols, InnerPanel,true>
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inline BlockImpl_dense(XprType& xpr,
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Index startRow, Index startCol,
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Index blockRows, Index blockCols)
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: Base(internal::const_cast_ptr(&xpr.coeffRef(startRow,startCol)), blockRows, blockCols),
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: Base(xpr.data()+xpr.innerStride()*(XprTypeIsRowMajor?startCol:startRow) + xpr.outerStride()*(XprTypeIsRowMajor?startRow:startCol), blockRows, blockCols),
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m_xpr(xpr)
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{
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init();
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