From 86ad98a5dc018ec767b3b981d6eddc3a73264d93 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@gmail.com>
Date: Wed, 25 Sep 2013 18:45:59 -0400
Subject: CarpetLib: Add sanity check for number of time levels

---
 Carpet/CarpetLib/src/th.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Carpet/CarpetLib/src/th.cc b/Carpet/CarpetLib/src/th.cc
index 33c748e51..8bd4163e5 100644
--- a/Carpet/CarpetLib/src/th.cc
+++ b/Carpet/CarpetLib/src/th.cc
@@ -38,6 +38,7 @@ th::th (gh& h_, int const timelevels_, vector<int> const& reffacts_,
     (time_interpolation_during_regridding_),
     timelevels(timelevels_), reffacts(reffacts_)
 {
+  assert (timelevels_ > 0);
   assert (reffacts.size() >= 1);
   assert (reffacts.front() == 1);
   for (size_t n = 1; n < reffacts.size(); ++ n) {
-- 
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