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implement the idea that row-vectors have the RowMajorBit and col-vectors don't.

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Benoit Jacob
2010-03-09 00:16:07 -05:00
parent b81351cb07
commit 74a7c5caee
6 changed files with 52 additions and 37 deletions
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13
Eigen/src/Core/Block.h
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@@ -70,13 +70,18 @@ struct ei_traits<Block<MatrixType, BlockRows, BlockCols, _DirectAccessStatus> >
: (BlockRows==Dynamic ? int(ei_traits<MatrixType>::MaxRowsAtCompileTime) : BlockRows),
MaxColsAtCompileTime = ColsAtCompileTime == 1 ? 1
: (BlockCols==Dynamic ? int(ei_traits<MatrixType>::MaxColsAtCompileTime) : BlockCols),
RowMajor = int(ei_traits<MatrixType>::Flags)&RowMajorBit,
MatrixTypeIsRowMajor = int(ei_traits<MatrixType>::Flags)&RowMajorBit,
IsRowMajor = (BlockRows==1&&BlockCols!=1) ? 1
: (BlockCols==1&&BlockRows!=1) ? 0
: MatrixTypeIsRowMajor,
InnerSize = RowMajor ? int(ColsAtCompileTime) : int(RowsAtCompileTime),
InnerMaxSize = RowMajor ? int(MaxColsAtCompileTime) : int(MaxRowsAtCompileTime),
MaskPacketAccessBit = (InnerMaxSize == Dynamic || (InnerSize >= ei_packet_traits<Scalar>::size))
MaskPacketAccessBit = (InnerSize == Dynamic || (InnerSize % ei_packet_traits<Scalar>::size) == 0)
&& (IsRowMajor == MatrixTypeIsRowMajor) // check for bad case of row-xpr inside col-major matrix...
? PacketAccessBit : 0,
FlagsLinearAccessBit = (RowsAtCompileTime == 1 || ColsAtCompileTime == 1) ? LinearAccessBit : 0,
Flags = (ei_traits<MatrixType>::Flags & (HereditaryBits | MaskPacketAccessBit | DirectAccessBit)) | FlagsLinearAccessBit
Flags0 = ei_traits<MatrixType>::Flags & (HereditaryBits | MaskPacketAccessBit | DirectAccessBit),
Flags1 = Flags0 | FlagsLinearAccessBit,
Flags = (Flags1 & ~RowMajorBit) | (IsRowMajor ? RowMajorBit : 0)
};
};