From 9c9503082725c26c20b1499ca734044ac88e1b9d Mon Sep 17 00:00:00 2001 From: sjplimp Date: Fri, 12 Jan 2007 16:00:28 +0000 Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@216 f3b2605a-c512-4ea7-a41b-209d697bcdaa --- src/min_cg.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/min_cg.cpp b/src/min_cg.cpp index 434d2ae116..4750d147d0 100644 --- a/src/min_cg.cpp +++ b/src/min_cg.cpp @@ -337,8 +337,10 @@ void MinCG::iterate(int n) void MinCG::setup_vectors() { ndof = 3 * atom->nlocal; - g = ((FixMinimize *) modify->fix[ifix_minimize])->gradient[0]; - h = ((FixMinimize *) modify->fix[ifix_minimize])->searchdir[0]; + if (ndof) g = ((FixMinimize *) modify->fix[ifix_minimize])->gradient[0]; + else g = NULL; + if (ndof) h = ((FixMinimize *) modify->fix[ifix_minimize])->searchdir[0]; + else h = NULL; } /* ----------------------------------------------------------------------