141 POSTGIS_DEBUGF(5,
"merging %s with %s", box2df_to_string(b_union), box2df_to_string(b_new));
143 if (b_union->xmin > b_new->xmin || isnan(b_union->xmin))
144 b_union->xmin = b_new->xmin;
145 if (b_union->ymin > b_new->ymin || isnan(b_union->ymin))
146 b_union->ymin = b_new->ymin;
148 if (b_union->xmax < b_new->xmax || isnan(b_union->xmax))
149 b_union->xmax = b_new->xmax;
150 if (b_union->ymax < b_new->ymax || isnan(b_union->ymax))
151 b_union->ymax = b_new->ymax;
153 POSTGIS_DEBUGF(5,
"merge complete %s", box2df_to_string(b_union));