From 655126e98267998083de5d436930af235ef79485 Mon Sep 17 00:00:00 2001
From: schnetter <schnetter@20f44201-0f4f-0410-9130-e5fc2714a787>
Date: Thu, 1 Mar 2007 00:01:01 +0000
Subject: Make option RotatingSymmetry90::poison_boundaries work, which can be
 used to ensure that this symmetry condition does not omit grid points.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/RotatingSymmetry180/trunk@41 20f44201-0f4f-0410-9130-e5fc2714a787
---
 src/rotatingsymmetry180.c | 34 +++++++++++++++-------------------
 1 file changed, 15 insertions(+), 19 deletions(-)

diff --git a/src/rotatingsymmetry180.c b/src/rotatingsymmetry180.c
index dcfde4b..2779e7a 100644
--- a/src/rotatingsymmetry180.c
+++ b/src/rotatingsymmetry180.c
@@ -380,14 +380,10 @@ int BndRot180VI (cGH const * restrict const cctkGH,
         int imin[3], imax[3];
         int i, j, k;
         for (d=0; d<3; ++d) {
-          assert (0);        /* xferinfo has not yet been allocated */
-          imin[d] = xferinfo[d].dst.off;
-          imax[d] = xferinfo[d].dst.off + xferinfo[d].dst.len;
-          imin[d] -= cctk_lbnd[d];
-          imax[d] -= cctk_lbnd[d];
-          if (imin[d] < 0) imin[d] = 0;
-          if (imax[d] >= cctk_lsh[d]) imax[d] = cctk_lsh[d];
+          imin[d] = 0;
+          imax[d] = cctk_lsh[d];
         }
+        imax[dir] = cctk_nghostzones[dir];
         
         var = 0;
         
@@ -401,7 +397,7 @@ int BndRot180VI (cGH const * restrict const cctkGH,
             for (j=imin[1]; j<imax[1]; ++j) {
               for (i=imin[2]; i<imax[0]; ++i) {
                 const int ind = CCTK_GFINDEX3D(cctkGH, i, j, k);
-                ((CCTK_REAL *) varptrs[var]) [ind] = poison_value;
+                ((CCTK_REAL * restrict) varptrs[var]) [ind] = poison_value;
               }
             }
           }
@@ -471,13 +467,10 @@ int BndRot180VI (cGH const * restrict const cctkGH,
         int imin[3], imax[3];
         int i, j, k;
         for (d=0; d<3; ++d) {
-          imin[d] = xferinfo[d].dst.off;
-          imax[d] = xferinfo[d].dst.off + xferinfo[d].dst.len;
-          imin[d] -= cctk_lbnd[d];
-          imax[d] -= cctk_lbnd[d];
-          if (imin[d] < 0) imin[d] = 0;
-          if (imax[d] >= cctk_lsh[d]) imax[d] = cctk_lsh[d];
+          imin[d] = 0;
+          imax[d] = cctk_lsh[d];
         }
+        imax[dir] = cctk_nghostzones[dir];
         
         var = 0;
         
@@ -491,8 +484,11 @@ int BndRot180VI (cGH const * restrict const cctkGH,
             for (j=imin[1]; j<imax[1]; ++j) {
               for (i=imin[2]; i<imax[0]; ++i) {
                 const int ind = CCTK_GFINDEX3D(cctkGH, i, j, k);
-                CCTK_REAL const val = ((CCTK_REAL const *) varptrs[var]) [ind];
-                assert (val != poison_value);
+                CCTK_REAL const val =
+                  ((CCTK_REAL const * restrict) varptrs[var]) [ind];
+                if (val == poison_value) {
+                  CCTK_WARN (CCTK_WARN_ABORT, "Poison found in symmetry regions -- there is an error in this thorn");
+                }
               }
             }
           }
@@ -531,7 +527,7 @@ int BndRot180VI (cGH const * restrict const cctkGH,
               for (j=imin[1]; j<imax[1]; ++j) {
                 for (i=imin[2]; i<imax[0]; ++i) {
                   const int ind = CCTK_GFINDEX3D(cctkGH, i, j, k);
-                  ((CCTK_INT *) varptrs[var]) [ind] *= -1;
+                  ((CCTK_INT * restrict) varptrs[var]) [ind] *= -1;
                 }
               }
             }
@@ -541,7 +537,7 @@ int BndRot180VI (cGH const * restrict const cctkGH,
               for (j=imin[1]; j<imax[1]; ++j) {
                 for (i=imin[2]; i<imax[0]; ++i) {
                   const int ind = CCTK_GFINDEX3D(cctkGH, i, j, k);
-                  ((CCTK_REAL *) varptrs[var]) [ind] *= -1;
+                  ((CCTK_REAL * restrict) varptrs[var]) [ind] *= -1;
                 }
               }
             }
@@ -554,7 +550,7 @@ int BndRot180VI (cGH const * restrict const cctkGH,
                   for (i=imin[2]; i<imax[0]; ++i) {
                     const int ind = CCTK_GFINDEX3D(cctkGH, i, j, k);
                     CCTK_COMPLEX * restrict const ptr =
-                      & ((CCTK_COMPLEX *) varptrs[var]) [ind];
+                      & ((CCTK_COMPLEX * restrict) varptrs[var]) [ind];
                     * ptr = CCTK_CmplxSub (czero, * ptr);
                   }
                 }
-- 
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