From 870e53c0f2d13c27d16fec05e6d9bde2ff0f5604 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Thu, 19 Dec 2019 17:30:11 +0100
Subject: Bug #1788: Fix rule-of-three violations inside the stable modules.
 This fixes deprecated-copy warnings when compiling with GCC>=9 Also protect
 some additional Base-constructors from getting called by user code code
 (#1587)

---
 Eigen/src/Core/TriangularMatrix.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

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

diff --git a/Eigen/src/Core/TriangularMatrix.h b/Eigen/src/Core/TriangularMatrix.h
index 8fc7a85ab..5e2f2de1b 100644
--- a/Eigen/src/Core/TriangularMatrix.h
+++ b/Eigen/src/Core/TriangularMatrix.h
@@ -219,9 +219,7 @@ template<typename _MatrixType, unsigned int _Mode> class TriangularView
     explicit inline TriangularView(MatrixType& matrix) : m_matrix(matrix)
     {}
     
-    using Base::operator=;
-    TriangularView& operator=(const TriangularView &other)
-    { return Base::operator=(other); }
+    EIGEN_INHERIT_ASSIGNMENT_OPERATORS(TriangularView)
 
     /** \copydoc EigenBase::rows() */
     EIGEN_DEVICE_FUNC
@@ -557,6 +555,10 @@ template<typename _MatrixType, unsigned int _Mode> class TriangularViewImpl<_Mat
     template<typename ProductType>
     EIGEN_DEVICE_FUNC
     EIGEN_STRONG_INLINE TriangularViewType& _assignProduct(const ProductType& prod, const Scalar& alpha, bool beta);
+  protected:
+    EIGEN_DEFAULT_COPY_CONSTRUCTOR(TriangularViewImpl)
+    EIGEN_DEFAULT_EMPTY_CONSTRUCTOR_AND_DESTRUCTOR(TriangularViewImpl)
+
 };
 
 /***************************************************************************
-- 
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