From: Jean-Paul Pelteret <jppelteret@gmail.com>
Date: Fri, 5 Oct 2018 13:59:47 +0000 (+0200)
Subject: Fix incorrect check for data structure resizing
X-Git-Tag: v9.1.0-rc1~630^2~4
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d69da1137011c3cd02e207b086624b2469455f65;p=dealii.git

Fix incorrect check for data structure resizing
---

diff --git a/source/differentiation/ad/ad_helpers.cc b/source/differentiation/ad/ad_helpers.cc
index befa9e89ad..ab22f87b82 100644
--- a/source/differentiation/ad/ad_helpers.cc
+++ b/source/differentiation/ad/ad_helpers.cc
@@ -998,7 +998,7 @@ namespace Differentiation
 
       // We can neglect correctly initializing the entries as
       // we'll be overwriting them immediately.
-      if (hessian.m() != this->n_independent_variables() &&
+      if (hessian.m() != this->n_independent_variables() ||
           hessian.n() != this->n_independent_variables())
         hessian.reinit({this->n_independent_variables(),
                         this->n_independent_variables()},