From 97e4e692f54a7aada8ad44d4f3f1e65e7f568763 Mon Sep 17 00:00:00 2001
From: Patrick Shriwise <pshriwise@gmail.com>
Date: Wed, 7 Apr 2021 17:34:03 -0500
Subject: [PATCH] Correction to index check in Tally::nuclide_name.

---
 src/tallies/tally.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/tallies/tally.cpp b/src/tallies/tally.cpp
index b3a259f79a..5fd034f92c 100644
--- a/src/tallies/tally.cpp
+++ b/src/tallies/tally.cpp
@@ -679,13 +679,12 @@ Tally::score_name(int score_idx) const {
 
 std::string
 Tally::nuclide_name(int nuclide_idx) const {
-  if (nuclide_idx != -1) {
-    return "total";
-  } else if (nuclide_idx < 0 || nuclide_idx >= nuclides_.size()) {
+  if (nuclide_idx < 0 || nuclide_idx >= nuclides_.size()) {
     fatal_error("Index in nuclides array is out of bounds");
   }
 
   int nuclide = nuclides_.at(nuclide_idx);
+  if (nuclide == -1) { return "total"; }
   return data::nuclides.at(nuclide)->name_;
 }