* add a writable generic coeff wise expression (CwiseUnaryView)

* add writable .real() and .imag() functions

1 files changed, 1 insertions, 0 deletions

diff --git a/Eigen/src/Core/util/ForwardDeclarations.h b/Eigen/src/Core/util/ForwardDeclarations.h
index 9ef708194..070c6f38e 100644
--- a/Eigen/src/Core/util/ForwardDeclarations.h
+++ b/Eigen/src/Core/util/ForwardDeclarations.h
@@ -43,6 +43,7 @@ template<typename MatrixType> class Transpose;
 template<typename MatrixType> class Conjugate;
 template<typename NullaryOp, typename MatrixType>         class CwiseNullaryOp;
 template<typename UnaryOp,   typename MatrixType>         class CwiseUnaryOp;
+template<typename ViewOp,    typename MatrixType>         class CwiseUnaryView;
 template<typename BinaryOp,  typename Lhs, typename Rhs>  class CwiseBinaryOp;
 template<typename Lhs, typename Rhs, int ProductMode> class Product;
 template<typename CoeffsVectorType, typename Derived> class DiagonalMatrixBase;