From 16d99cc1765bb7ee614de1f8ca3162c4450cdbdf Mon Sep 17 00:00:00 2001
From: sjplimp <sjplimp@f3b2605a-c512-4ea7-a41b-209d697bcdaa>
Date: Thu, 9 Feb 2012 22:00:20 +0000
Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@7745
 f3b2605a-c512-4ea7-a41b-209d697bcdaa

---
 src/balance.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/balance.cpp b/src/balance.cpp
index 458b6df23c..45e64ef48f 100644
--- a/src/balance.cpp
+++ b/src/balance.cpp
@@ -87,6 +87,8 @@ void Balance::command(int narg, char **arg)
 
   // parse arguments
 
+  if (narg < 1) error->all(FLERR,"Illegal balance command");
+
   int dimension = domain->dimension;
   int *procgrid = comm->procgrid;
   xflag = yflag = zflag = NONE;