bk commit into 4.1 tree (hf:1.2270) BUG#10626

[holyfoot]

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4.1 repository of hf. When hf does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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ChangeSet
  1.2270 05/05/13 22:03:19 hf@deer.(none) +1 -0
  Fix for bug #10626 ( gis.test fails)

  sql/spatial.cc
    1.20 05/05/13 22:02:35 hf@deer.(none) +22 -25
    just float8get doesn't work well with the local variables -
    they can be of processor-specific floating type - not the
    standard decimal
    so 

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	hf
# Host:	deer.(none)
# Root:	/home/hf/work/mysql-4.1.clean

--- 1.19/sql/spatial.cc	Fri Oct 22 20:31:27 2004
+++ 1.20/sql/spatial.cc	Fri May 13 22:02:35 2005
@@ -96,6 +96,12 @@
 geometrycollection_class("GEOMETRYCOLLECTION",Geometry::wkb_geometrycollection,
 			 create_geometrycollection);
 
+static void get_point(double *x, double *y, const char *data)
+{
+  float8get(*x, data);
+  float8get(*y, data + SIZEOF_STORED_DOUBLE);
+}
+
 /***************************** Geometry *******************************/
 
 Geometry::Class_info *Geometry::find_class(const char *name, uint32 len)
@@ -266,14 +272,13 @@
 {			     
   while (n_points--)
   {
-    double d;
+    double x,y;
     data+= offset;
-    float8get(d, data);
-    txt->qs_append(d);
-    txt->qs_append(' ');
-    float8get(d, data + SIZEOF_STORED_DOUBLE);
+    get_point(&x, &y, data);
     data+= SIZEOF_STORED_DOUBLE * 2;
-    txt->qs_append(d);
+    txt->qs_append(x);
+    txt->qs_append(' ');
+    txt->qs_append(y);
     txt->qs_append(',');
   }
   return data;
@@ -426,8 +431,7 @@
   while (n_points--)
   {
     double x, y;
-    float8get(x, data);
-    float8get(y, data + SIZEOF_STORED_DOUBLE);
+    get_point(&x, &y, data);
     data+= SIZEOF_STORED_DOUBLE * 2;
     txt->qs_append(x);
     txt->qs_append(' ');
@@ -460,15 +464,13 @@
   if (n_points < 1 || no_data(data, SIZEOF_STORED_DOUBLE * 2 * n_points))
     return 1;
 
-  float8get(prev_x, data);
-  float8get(prev_y, data + SIZEOF_STORED_DOUBLE);
+  get_point(&prev_x, &prev_y, data);
   data+= SIZEOF_STORED_DOUBLE*2;
 
   while (--n_points)
   {
     double x, y;
-    float8get(x, data);
-    float8get(y, data + SIZEOF_STORED_DOUBLE);
+    get_point(&x, &y, data);
     data+= SIZEOF_STORED_DOUBLE * 2;
     *len+= sqrt(pow(prev_x-x,2)+pow(prev_y-y,2));
     prev_x= x;
@@ -497,13 +499,11 @@
     return 1;
 
   /* Get first point */
-  float8get(x1, data);
-  float8get(y1, data + SIZEOF_STORED_DOUBLE);
+  get_point(&x1, &y1, data);
 
   /* get last point */
   data+= SIZEOF_STORED_DOUBLE*2 + (n_points-2)*POINT_DATA_SIZE;
-  float8get(x2, data);
-  float8get(y2, data + SIZEOF_STORED_DOUBLE);
+  get_point(&x2, &y2, data);
 
   *closed= (x1==x2) && (y1==y2);
   return 0;
@@ -681,15 +681,13 @@
     n_points= uint4korr(data);
     if (no_data(data, (SIZEOF_STORED_DOUBLE*2) * n_points))
       return 1;
-    float8get(prev_x, data+4);
-    float8get(prev_y, data+(4+SIZEOF_STORED_DOUBLE));
+    get_point(&prev_x, &prev_y, data+4);
     data+= (4+SIZEOF_STORED_DOUBLE*2);
 
     while (--n_points)				// One point is already read
     {
       double x, y;
-      float8get(x, data);
-      float8get(y, data + SIZEOF_STORED_DOUBLE);
+      get_point(&x, &y, data);
       data+= (SIZEOF_STORED_DOUBLE*2);
       /* QQ: Is the following prev_x+x right ? */
       lr_area+= (prev_x + x)* (prev_y - y);
@@ -779,7 +777,8 @@
 int Gis_polygon::centroid_xy(double *x, double *y) const
 {
   uint32 n_linear_rings;
-  double res_area, res_cx, res_cy;
+  double res_area;
+  double res_cx, res_cy;
   const char *data= m_data;
   bool first_loop= 1;
   LINT_INIT(res_area);
@@ -805,15 +804,13 @@
     data+= 4;
     if (no_data(data, (SIZEOF_STORED_DOUBLE*2) * n_points))
       return 1;
-    float8get(prev_x, data);
-    float8get(prev_y, data+SIZEOF_STORED_DOUBLE);
+    get_point(&prev_x, &prev_y, data);
     data+= (SIZEOF_STORED_DOUBLE*2);
 
     while (--n_points)				// One point is already read
     {
       double x, y;
-      float8get(x, data);
-      float8get(y, data + SIZEOF_STORED_DOUBLE);
+      get_point(&x, &y, data);
       data+= (SIZEOF_STORED_DOUBLE*2);
       /* QQ: Is the following prev_x+x right ? */
       cur_area+= (prev_x + x) * (prev_y - y);