From 095c9bc45b4771238ff682094ffd05847f048c56 Mon Sep 17 00:00:00 2001
From: Mark Olesen <Mark.Olesen@esi-group.com>
Date: Mon, 26 Jun 2023 17:44:37 +0200
Subject: [PATCH] BUG: expressions rand() ignores objectRegistry timeIndex
 (fixes #2923)

---
 src/OpenFOAM/expressions/exprDriver/exprDriverFields.C | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/OpenFOAM/expressions/exprDriver/exprDriverFields.C b/src/OpenFOAM/expressions/exprDriver/exprDriverFields.C
index 6511cec7bba..60b4e980502 100644
--- a/src/OpenFOAM/expressions/exprDriver/exprDriverFields.C
+++ b/src/OpenFOAM/expressions/exprDriver/exprDriverFields.C
@@ -5,7 +5,7 @@
     \\  /    A nd           | www.openfoam.com
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2019-2021 OpenCFD Ltd.
+    Copyright (C) 2019-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -41,9 +41,11 @@ void Foam::expressions::exprDriver::fill_random
 {
     if (seed <= 0)
     {
-        if (timeStatePtr_)
+        const TimeState* ts = this->timeState();
+
+        if (ts)
         {
-            seed = (timeStatePtr_->timeIndex() - seed);
+            seed = (ts->timeIndex() - seed);
         }
         else
         {
-- 
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