From a7e9798ad53fe19f47c46da2484227025c5a148c Mon Sep 17 00:00:00 2001
From: Roelof Groenewald <40245517+roelof-groenewald@users.noreply.github.com>
Date: Mon, 19 Jul 2021 10:13:05 -0700
Subject: added error message for invalid cross-section files in MCC setup
 (#2105)

---
 Source/Particles/Collision/MCCProcess.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Source/Particles/Collision/MCCProcess.cpp')

diff --git a/Source/Particles/Collision/MCCProcess.cpp b/Source/Particles/Collision/MCCProcess.cpp
index 2e5d7e9f0..383ceb815 100644
--- a/Source/Particles/Collision/MCCProcess.cpp
+++ b/Source/Particles/Collision/MCCProcess.cpp
@@ -102,6 +102,9 @@ MCCProcess::readCrossSectionFile (
         energies.push_back(energy);
         sigmas.push_back(sigma);
     }
+    AMREX_ALWAYS_ASSERT_WITH_MESSAGE(energies.size() > 1,
+        "Failed to read cross-section data from file."
+    );
 }
 
 void
-- 
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