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add specialization of ei_ref_selector for Array (fix a big perf issue \!)

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Gael Guennebaud 2010-01-29 21:28:23 +01:00
parent 6dee5440e4
commit b6521b799f
1 changed files with 7 additions and 0 deletions
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7
Eigen/src/Core/util/XprHelper.h
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@ -228,6 +228,13 @@ struct ei_ref_selector< Matrix<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCo
typedef MatrixType const& type; typedef MatrixType const& type;
}; };
template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols>
struct ei_ref_selector< Array<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols> >
{
typedef Array<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols> ArrayType;
typedef ArrayType const& type;
};
/** \internal Determines how a given expression should be nested into another one. /** \internal Determines how a given expression should be nested into another one.
* For example, when you do a * (b+c), Eigen will determine how the expression b+c should be * For example, when you do a * (b+c), Eigen will determine how the expression b+c should be
* nested into the bigger product expression. The choice is between nesting the expression b+c as-is, or * nested into the bigger product expression. The choice is between nesting the expression b+c as-is, or