From c1820f19d34c1763d5ac5ac7b3b97596d1cfbc0b Mon Sep 17 00:00:00 2001
From: Henry Weller <http://openfoam.org>
Date: Thu, 31 Oct 2019 14:48:31 +0000
Subject: [PATCH] postProcessing::noise: Improved robustness of the uniform
 time-step check

---
 applications/utilities/postProcessing/noise/noise.C | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/applications/utilities/postProcessing/noise/noise.C b/applications/utilities/postProcessing/noise/noise.C
index 1d0f51a336..dd66fe750a 100644
--- a/applications/utilities/postProcessing/noise/noise.C
+++ b/applications/utilities/postProcessing/noise/noise.C
@@ -98,13 +98,13 @@ Foam::scalar checkUniformTimeStep(const scalarField& t)
     {
         for (label i = 1; i < t.size(); i++)
         {
-            scalar dT = t[i] - t[i-1];
+            const scalar dT = t[i] - t[i-1];
             if (deltaT < 0)
             {
                 deltaT = dT;
             }
 
-            if (mag(deltaT - dT) > small)
+            if (mag(deltaT - dT) > rootSmall)
             {
                 FatalErrorInFunction
                     << "Unable to process data with a variable time step"