From f67d9113dbc1033315d028dd75e9b05510f85d58 Mon Sep 17 00:00:00 2001
From: Ingmar Schoegl <ischoegl@lgmail.com>
Date: Sun, 3 Nov 2019 19:00:41 -0600
Subject: [PATCH] [Kinetics] issue warning for zero T2 Troe coefficient

---
 src/kinetics/Falloff.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/kinetics/Falloff.cpp b/src/kinetics/Falloff.cpp
index 011ac713a..3332bb1cc 100644
--- a/src/kinetics/Falloff.cpp
+++ b/src/kinetics/Falloff.cpp
@@ -8,6 +8,7 @@
 
 #include "cantera/base/stringUtils.h"
 #include "cantera/base/ctexceptions.h"
+#include "cantera/base/global.h"
 #include "cantera/kinetics/Falloff.h"
 
 namespace Cantera
@@ -43,6 +44,9 @@ void Troe::init(const vector_fp& c)
     }
 
     if (c.size() == 4) {
+        if (std::abs(c[3]) < SmallNumber) {
+            warn_user("Troe::init", "Zero T2 value is suppressed.");
+        }
         m_t2 = c[3];
     }
 }