fix compilation of sparse_basic for DynamicSparseMatrix

1 files changed, 7 insertions, 0 deletions

diff --git a/Eigen/src/Sparse/DynamicSparseMatrix.h b/Eigen/src/Sparse/DynamicSparseMatrix.h
index 49a78fd26..ec6c3be8f 100644
--- a/Eigen/src/Sparse/DynamicSparseMatrix.h
+++ b/Eigen/src/Sparse/DynamicSparseMatrix.h
@@ -74,6 +74,7 @@ class DynamicSparseMatrix
     // EIGEN_SPARSE_INHERIT_ASSIGNMENT_OPERATOR(DynamicSparseMatrix, -=)
     typedef MappedSparseMatrix<Scalar,Flags> Map;
     using Base::IsRowMajor;
+    using Base::operator=;
     enum {
       Options = _Options
     };
@@ -283,6 +284,12 @@ class DynamicSparseMatrix
     {
       return SparseMatrixBase<DynamicSparseMatrix>::operator=(other.derived());
     }
+    
+    template<typename OtherDerived>
+    EIGEN_STRONG_INLINE DynamicSparseMatrix& operator=(const ReturnByValue<OtherDerived>& func)
+    {
+      return Base::operator=(func);
+    }
 
     /** Destructor */
     inline ~DynamicSparseMatrix() {}