From e1f1091fde660581d64b54ff1019bc494dbbca89 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Sat, 24 Jan 2015 10:32:49 +0100
Subject: Add support for dense ?= diagonal

---
 Eigen/src/Core/DiagonalMatrix.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'Eigen/src/Core/DiagonalMatrix.h')

diff --git a/Eigen/src/Core/DiagonalMatrix.h b/Eigen/src/Core/DiagonalMatrix.h
index e3dc71336..49b9b7925 100644
--- a/Eigen/src/Core/DiagonalMatrix.h
+++ b/Eigen/src/Core/DiagonalMatrix.h
@@ -326,6 +326,12 @@ struct Assignment<DstXprType, SrcXprType, Functor, Diagonal2Dense, Scalar>
     dst.setZero();
     dst.diagonal() = src.diagonal();
   }
+  
+  static void run(DstXprType &dst, const SrcXprType &src, const internal::add_assign_op<typename DstXprType::Scalar> &/*func*/)
+  { dst.diagonal() += src.diagonal(); }
+  
+  static void run(DstXprType &dst, const SrcXprType &src, const internal::sub_assign_op<typename DstXprType::Scalar> &/*func*/)
+  { dst.diagonal() -= src.diagonal(); }
 };
 
 } // namespace internal
-- 
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