From 3d6dc9a9b83c92dab5af2a843cfa6d561bb7e3c6 Mon Sep 17 00:00:00 2001
From: mattijs <mattijs>
Date: Wed, 3 Feb 2010 16:57:03 +0000
Subject: [PATCH] ENH: Automatically increase the time precision to make
 timeNames differ.

Before two timesteps could get the same timeName and start overwriting old results.
---
 src/OpenFOAM/db/Time/Time.C | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/OpenFOAM/db/Time/Time.C b/src/OpenFOAM/db/Time/Time.C
index 31473cb0..427b5c45 100644
--- a/src/OpenFOAM/db/Time/Time.C
+++ b/src/OpenFOAM/db/Time/Time.C
@@ -653,6 +653,9 @@ Foam::Time& Foam::Time::operator++()
 
     deltaT0_ = deltaTSave_;
     deltaTSave_ = deltaT_;
+
+    const word oldTimeName = dimensionedScalar::name();
+
     setTime(value() + deltaT_, timeIndex_ + 1);
 
     // If the time is very close to zero reset to zero
@@ -661,6 +664,24 @@ Foam::Time& Foam::Time::operator++()
         setTime(0.0, timeIndex_);
     }
 
+    // Check that new time representation differs from old one
+    if (dimensionedScalar::name() == oldTimeName)
+    {
+        int oldPrecision = precision_;
+        do
+        {
+            precision_++;
+            setTime(value(), timeIndex());
+        }
+        while (precision_ < 100 && dimensionedScalar::name() == oldTimeName);
+
+        WarningIn("Time::operator++()")
+            << "Increased the timePrecision from " << oldPrecision
+            << " to " << precision_
+            << " to distinguish between timeNames at time " << value()
+            << endl;
+    }
+
     switch (writeControl_)
     {
         case wcTimeStep:
-- 
2.11.4.GIT