From 58a01419fcbdf6956624966ccb15f6f02a43b149 Mon Sep 17 00:00:00 2001
From: Pengfei Jia <pengfej@clemson.edu>
Date: Tue, 7 Feb 2023 12:17:31 -0500
Subject: [PATCH] Fixing random number generator function parser

---
 source/base/mu_parser_internal.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/base/mu_parser_internal.cc b/source/base/mu_parser_internal.cc
index 463d5a5287..eb3173f5cb 100644
--- a/source/base/mu_parser_internal.cc
+++ b/source/base/mu_parser_internal.cc
@@ -308,8 +308,10 @@ namespace internal
           parser.DefineFun("log", mu_log, true);
           parser.DefineFun("pow", mu_pow, true);
           parser.DefineFun("erfc", mu_erfc, true);
-          parser.DefineFun("rand_seed", mu_rand_seed, true);
-          parser.DefineFun("rand", mu_rand, true);
+          // We need to set optimized=false, because rand will generate
+          // different number every time.
+          parser.DefineFun("rand_seed", mu_rand_seed, false);
+          parser.DefineFun("rand", mu_rand, false);
 
           try
             {
-- 
2.39.5