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* make the _Flags template parameter of Matrix default to the corrected

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flags. This ensures that unless explicitly messed up otherwise,
  a Matrix type is equal to its own Eval type. This seriously reduces
  the number of types instantiated. Measured +13% compile speed, -7%
  binary size.

* Improve doc of Matrix template parameters.
This commit is contained in:
Benoit Jacob
2008-06-13 07:53:45 +00:00
parent e3fac69f19
commit c90c77051f
5 changed files with 62 additions and 36 deletions
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12
Eigen/src/Core/util/ForwardDeclarations.h
View File

@@ -28,10 +28,18 @@
template<typename T> struct ei_traits;
template<typename Lhs, typename Rhs> struct ei_product_eval_mode;
template<typename T> struct NumTraits;
template<typename Scalar, int Size, unsigned int SuggestedFlags> class ei_corrected_matrix_flags;
template<int _Rows, int _Cols> struct ei_size_at_compile_time;
template<typename _Scalar, int _Rows, int _Cols,
unsigned int _SuggestedFlags = EIGEN_DEFAULT_MATRIX_FLAGS,
int _MaxRows = _Rows, int _MaxCols = _Cols>
int _MaxRows = _Rows, int _MaxCols = _Cols,
unsigned int _Flags = ei_corrected_matrix_flags<
_Scalar,
ei_size_at_compile_time<_MaxRows,_MaxCols>::ret,
EIGEN_DEFAULT_MATRIX_FLAGS
>::ret
>
class Matrix;
template<typename ExpressionType, unsigned int Added, unsigned int Removed> class Flagged;

9
Eigen/src/Core/util/Meta.h
View File

@@ -180,9 +180,14 @@ template<typename T> class ei_eval
typedef Matrix<_Scalar,
ei_traits<T>::RowsAtCompileTime,
ei_traits<T>::ColsAtCompileTime,
ei_corrected_matrix_flags<_Scalar, ei_size_at_compile_time<_MaxRows,_MaxCols>::ret, _Flags>::ret,
ei_traits<T>::MaxRowsAtCompileTime,
ei_traits<T>::MaxColsAtCompileTime> type;
ei_traits<T>::MaxColsAtCompileTime,
ei_corrected_matrix_flags<
_Scalar,
ei_size_at_compile_time<_MaxRows,_MaxCols>::ret,
_Flags
>::ret
> type;
};
template<typename T> struct ei_unref { typedef T type; };