From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Sat, 14 Oct 2017 12:31:53 +0000 (+0200)
Subject: Fix undefined behavior in TridiagonalMatrix
X-Git-Tag: v9.0.0-rc1~952^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d39257b84453f2ed11e290f7b543d3563fca78f4;p=dealii.git

Fix undefined behavior in TridiagonalMatrix
---

diff --git a/source/lac/tridiagonal_matrix.cc b/source/lac/tridiagonal_matrix.cc
index 711343ecf6..16937b5445 100644
--- a/source/lac/tridiagonal_matrix.cc
+++ b/source/lac/tridiagonal_matrix.cc
@@ -237,7 +237,7 @@ TridiagonalMatrix<double>::compute_eigenvalues()
 
   const int nn = n();
   int info;
-  stev (&N, &nn, &*diagonal.begin(), &*right.begin(), nullptr, &one, nullptr, &info);
+  stev (&N, &nn, diagonal.data(), right.data(), nullptr, &one, nullptr, &info);
   Assert(info == 0, ExcInternalError());
 
   state = LAPACKSupport::eigenvalues;