From: Matthias Maier <tamiko@43-1.org>
Date: Sun, 15 Mar 2020 16:46:36 +0000 (-0500)
Subject: examples/step-69: use std::atomic::load()
X-Git-Tag: v9.2.0-rc1~421^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F9666%2Fhead;p=dealii.git

examples/step-69: use std::atomic::load()

This fixes a compilation issue with clang-4

Closes: #9665
---

diff --git a/examples/step-69/step-69.cc b/examples/step-69/step-69.cc
index 49062a7540..6d07c5a500 100644
--- a/examples/step-69/step-69.cc
+++ b/examples/step-69/step-69.cc
@@ -2064,9 +2064,11 @@ namespace Step69
 
       // This is a good point to verify that the computed
       // <code>tau_max</code> is indeed a valid floating point number.
-      AssertThrow(!std::isnan(tau_max) && !std::isinf(tau_max) && tau_max > 0.,
-                  ExcMessage("I'm sorry, Dave. I'm afraid I can't "
-                             "do that. - We crashed."));
+      AssertThrow(
+        !std::isnan(tau_max.load()) && !std::isinf(tau_max.load()) &&
+          tau_max.load() > 0.,
+        ExcMessage(
+          "I'm sorry, Dave. I'm afraid I can't do that. - We crashed."));
     }
 
     // <b>Step 3</b>: Perform update.