From 8d9b995054c5bba65920d1720e3d80244d45d8e7 Mon Sep 17 00:00:00 2001
From: schnetter <schnetter@c3c03602-0f4f-0410-b3fa-d2c81c8a7dc5>
Date: Fri, 27 May 2005 12:24:48 +0000
Subject: Allow to apply the symmetries to 0 variables.  In this case, just
 return.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/RotatingSymmetry90/trunk@21 c3c03602-0f4f-0410-b3fa-d2c81c8a7dc5
---
 src/rotatingsymmetry90.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/rotatingsymmetry90.c b/src/rotatingsymmetry90.c
index e797cac..e71c643 100644
--- a/src/rotatingsymmetry90.c
+++ b/src/rotatingsymmetry90.c
@@ -120,6 +120,9 @@ int BndRot90VI (cGH const * restrict const cctkGH,
     }
   }
   
+  /* Return early if there is nothing to do */
+  if (nvars == 0) return 0;
+  
   /* Get and check group info */
   assert (nvars>0);
   gis = malloc (nvars * sizeof *gis);
-- 
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