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* fix bug in SwapWrapper : store the wrapped expression by reference

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* optimize setIdentity: when the matrix is large enough it is better to
  setZero() and overwrite the diagonal
* start of LU solver, disabled for now
This commit is contained in:
Benoit Jacob
2008-08-09 04:37:09 +00:00
parent 9bbe396939
commit a41f2b4216
4 changed files with 145 additions and 31 deletions
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4
Eigen/src/Core/Swap.h
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@@ -53,7 +53,7 @@ template<typename ExpressionType> class SwapWrapper
EIGEN_GENERIC_PUBLIC_INTERFACE(SwapWrapper)
typedef typename ei_packet_traits<Scalar>::type Packet;
inline SwapWrapper(ExpressionType& matrix) : m_expression(matrix) {}
inline SwapWrapper(ExpressionType& xpr) : m_expression(xpr) {}
inline int rows() const { return m_expression.rows(); }
inline int cols() const { return m_expression.cols(); }
@@ -106,7 +106,7 @@ template<typename ExpressionType> class SwapWrapper
}
protected:
ExpressionType m_expression;
ExpressionType& m_expression;
};
/** swaps *this with the expression \a other.