From b39d59163852b03bed8ff1babde11248c0760b0b Mon Sep 17 00:00:00 2001
From: schnetter <>
Date: Mon, 24 Feb 2003 16:43:00 +0000
Subject: Abort when the region is empty.

darcs-hash:20030224164310-07bb3-74aea71016b7064c9232175c804c72c3d697614e.gz
---
 Carpet/CarpetLib/src/copy_3d_real8.F77 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'Carpet/CarpetLib/src/copy_3d_real8.F77')

diff --git a/Carpet/CarpetLib/src/copy_3d_real8.F77 b/Carpet/CarpetLib/src/copy_3d_real8.F77
index 8a07051dc..230814c04 100644
--- a/Carpet/CarpetLib/src/copy_3d_real8.F77
+++ b/Carpet/CarpetLib/src/copy_3d_real8.F77
@@ -1,5 +1,5 @@
 c     -*-Fortran-*-
-c     $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetLib/src/copy_3d_real8.F77,v 1.4 2001/12/09 16:43:08 schnetter Exp $
+c     $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetLib/src/copy_3d_real8.F77,v 1.5 2003/02/24 17:43:10 schnetter Exp $
       
 #include "cctk.h"
       
@@ -49,6 +49,10 @@ c     bbox(:,3) is stride
      $        .or. regbbox(d,2).gt.dstbbox(d,2)) then
             call CCTK_WARN (0, "Internal error: region extent is not contained in array extent")
          end if
+         if (regbbox(d,1).gt.regbbox(d,2)) then
+c     This could be handled, but is likely to point to an error elsewhere
+            call CCTK_WARN (0, "Internal error: region extent is empty")
+         end if
       end do
       
       if (srciext.ne.(srcbbox(1,2)-srcbbox(1,1))/srcbbox(1,3)+1
-- 
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