From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 24 Apr 2019 20:53:03 +0000 (-0600)
Subject: Fix a mistaken assertion that only succeeds by accident.
X-Git-Tag: v9.1.0-rc1~177^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f44cce3ac84f72a691c4412ac94d33d230ec02a;p=dealii.git

Fix a mistaken assertion that only succeeds by accident.

Specifically, it succeeds because we get a pointer to the first of a block of
elements where the size of the block is greater than one. If one had a 1-point
quadrature formula, the assertion would fail.
---

diff --git a/examples/step-18/step-18.cc b/examples/step-18/step-18.cc
index 5796801b57..035991a020 100644
--- a/examples/step-18/step-18.cc
+++ b/examples/step-18/step-18.cc
@@ -1742,7 +1742,7 @@ namespace Step18
           Assert(local_quadrature_points_history >=
                    &quadrature_point_history.front(),
                  ExcInternalError());
-          Assert(local_quadrature_points_history <
+          Assert(local_quadrature_points_history <=
                    &quadrature_point_history.back(),
                  ExcInternalError());