From efe6dec30de5320a53ee25c83419ddf01b0f0635 Mon Sep 17 00:00:00 2001
From: Giovanni Bussi <giovanni.bussi@gmail.com>
Date: Wed, 16 May 2018 17:53:12 +0200
Subject: [PATCH] Added error message
---
src/tools/NeighborList.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/tools/NeighborList.cpp b/src/tools/NeighborList.cpp
index 65f3c9a22..8866378c7 100644
--- a/src/tools/NeighborList.cpp
+++ b/src/tools/NeighborList.cpp
@@ -45,7 +45,7 @@ NeighborList::NeighborList(const vector<AtomNumber>& list0, const vector<AtomNum
if(!do_pair) {
nallpairs_=nlist0_*nlist1_;
} else {
- plumed_assert(nlist0_==nlist1_);
+ plumed_massert(nlist0_==nlist1_,"when using PAIR option, the two groups should have the same number of elements");
nallpairs_=nlist0_;
}
initialize();
--
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