From 8f90d6c6d00a8dd07edbd510b072f7f953a114ea Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Fri, 22 Mar 2019 04:55:13 -0400
Subject: [PATCH] must bracket 'memory->destroy()' calls in destructor with 'if
 (allocated)'

---
 src/pair_buck_coul_cut.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pair_buck_coul_cut.cpp b/src/pair_buck_coul_cut.cpp
index 7eecb62121..f9e7c94920 100644
--- a/src/pair_buck_coul_cut.cpp
+++ b/src/pair_buck_coul_cut.cpp
@@ -42,7 +42,9 @@ PairBuckCoulCut::PairBuckCoulCut(LAMMPS *lmp) : Pair(lmp)
 
 PairBuckCoulCut::~PairBuckCoulCut()
 {
-  if (!copymode) {
+  if (copymode) return;
+
+  if (allocated) {
     memory->destroy(setflag);
     memory->destroy(cutsq);