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fix issue #45 and document the .data() and .stride() functions

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This commit is contained in:
Gael Guennebaud
2009-08-31 17:07:54 +02:00
parent 27c9ecc50f
commit 095809edda
2 changed files with 32 additions and 4 deletions
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16
Eigen/src/Core/Block.h
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@@ -201,6 +201,13 @@ template<typename MatrixType, int BlockRows, int BlockCols, int PacketAccess, in
m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0), x);
}
#ifdef EIGEN_PARSED_BY_DOXYGEN
/** \sa MapBase::data() */
inline const Scalar* data() const;
/** \sa MapBase::stride() */
inline int stride() const;
#endif
protected:
const typename MatrixType::Nested m_matrix;
@@ -269,7 +276,14 @@ class Block<MatrixType,BlockRows,BlockCols,PacketAccess,HasDirectAccess>
&& startCol >= 0 && blockCols >= 0 && startCol + blockCols <= matrix.cols());
}
inline int stride(void) const { return m_matrix.stride(); }
/** \sa MapBase::stride() */
inline int stride() const
{
return ((!Base::IsVectorAtCompileTime)
|| (BlockRows==1 && ((Flags&RowMajorBit)==0))
|| (BlockCols==1 && ((Flags&RowMajorBit)==RowMajorBit)))
? m_matrix.stride() : 1;
}
#ifndef __SUNPRO_CC
// FIXME sunstudio is not friendly with the above friend...