Big change in DiagonalMatrix and Geometry/Scaling:

* previous DiagonalMatrix expression is now DiagonalMatrixWrapper
* DiagonalMatrix class is now for storage
* add the DiagonalMatrixBase class to factorize code of the
  two previous classes
* remove Scaling class (it is now a global function)
* add UniformScaling helper class
  (don't use it directly, use the Scaling function)
* add the Scaling global function to simplify the creation
  of scaling objects
There is still a lot to do, in particular about DiagonalProduct for which
the goal is to get rid of the "if()" in the coeff() function. At least
it is not worse than before ! Also need to uptade the tutorial and add more doc.

1 files changed, 3 insertions, 3 deletions

diff --git a/Eigen/src/Core/DiagonalProduct.h b/Eigen/src/Core/DiagonalProduct.h
index f33a26f98..83ba96c3c 100644
--- a/Eigen/src/Core/DiagonalProduct.h
+++ b/Eigen/src/Core/DiagonalProduct.h
@@ -30,9 +30,9 @@
  *  Unlike ei_nested, if the argument is a DiagonalMatrix and if it must be evaluated,
  *  then it evaluated to a DiagonalMatrix having its own argument evaluated.
  */
-template<typename T, int N> struct ei_nested_diagonal : ei_nested<T,N> {};
-template<typename T, int N> struct ei_nested_diagonal<DiagonalMatrix<T>,N >
- : ei_nested<DiagonalMatrix<T>, N, DiagonalMatrix<NestByValue<typename ei_plain_matrix_type<T>::type> > >
+template<typename T, int N, bool IsDiagonal = (T::Flags&Diagonal)==Diagonal> struct ei_nested_diagonal : ei_nested<T,N> {};
+template<typename T, int N> struct ei_nested_diagonal<T,N,true>
+ : ei_nested<T, N, DiagonalMatrix<typename T::Scalar, EIGEN_ENUM_MIN(T::RowsAtCompileTime,T::ColsAtCompileTime)> >
 {};
 
 // specialization of ProductReturnType