Initialize the extent_int[] array before it is being used !

This closes PR CactusBase/1770: "IOAscii 3D output no longer works".


git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/IOASCII/trunk@184 94b1c47f-dcfd-45ef-a468-0854c0e9e350

1 files changed, 4 insertions, 8 deletions

diff --git a/src/Write3D.c b/src/Write3D.c
index 4a6bab7..9664e41 100644
--- a/src/Write3D.c
+++ b/src/Write3D.c
@@ -210,9 +210,12 @@ int IOASCII_Write3D (const cGH *GH, int vindex, const char *alias)
   file = myproc == 0 ? OpenFile (GH, fullname, alias) : NULL;
 
   /* get the total number of grid points to check for zero-sized variables */
-  for (i = 0, total_hsize = 1; i < gdata.dim; i++)
+  /* set the extent vector (copy from 'int' to 'CCTK_INT' */
+  CCTK_GroupgshVI (GH, 3, extent_int, vindex);
+  for (i = 0, total_hsize = 1; i < 3; i++)
   {
     total_hsize *= extent_int[i];
+    extent[i] = extent_int[i];
   }
   if (total_hsize <= 0)
   {
@@ -220,13 +223,6 @@ int IOASCII_Write3D (const cGH *GH, int vindex, const char *alias)
     return (0);
   }
 
-  /* set the extent vector (copy from 'int' to 'CCTK_INT' */
-  CCTK_GroupgshVI (GH, 3, extent_int, vindex);
-  for (i = 0; i < 3; i++)
-  {
-    extent[i] = extent_int[i];
-  }
-
   downsample[0] = out_downsample_x;
   downsample[1] = out_downsample_y;
   downsample[2] = out_downsample_z;