grid search: changed unsigned to size_t.

src/grid_search.cc

-#if defined(HAVE_CONFIG_H)
+#ifdef  HAVE_CONFIG_H
 #include "config.h"
 #endif
 
@@ -84,7 +84,7 @@ struct gridsearch *gridsearch_create_reg2d(bool lcyclic, size_t nx, size_t ny, c
   gs->nx = nx;
   gs->ny = ny;
 
-  unsigned nxm = nx;
+  size_t nxm = nx;
   if ( lcyclic ) nxm++;
 
   double *reg2d_center_lon = (double *) Malloc(nxm*sizeof(double));
@@ -397,7 +397,7 @@ kdNode *gs_nearest_kdsph(kdNode *kdt, double lon, double lat, double *prange)
 }
 
 
-unsigned gs_nearest_nearpt3(struct gsNear *near, double lon, double lat, double *prange)
+size_t gs_nearest_nearpt3(struct gsNear *near, double lon, double lat, double *prange)
 {
   size_t index = GS_NOT_FOUND;
   if ( near == NULL ) return index;
@@ -423,7 +423,7 @@ unsigned gs_nearest_nearpt3(struct gsNear *near, double lon, double lat, double
       float range = distance(point, point0);
       if ( range < range0 )
         {
-           index = (unsigned) closestpt;
+          index = (size_t) closestpt;
            *prange = range;
         }
     }
@@ -588,7 +588,7 @@ void knn_check_distance(size_t num_neighbors, const size_t *restrict nbr_add, do
 
 void gridsearch_knn_init(struct gsknn *knn)
 {
-  unsigned ndist = knn->ndist;
+  size_t ndist = knn->ndist;
   size_t *restrict add = knn->add;
   double *restrict dist = knn->dist;
 

src/grid_search.h

@@ -11,14 +11,14 @@
 enum T_GRIDSEARCH_METHOD_NN  {GS_FULL=1, GS_KDTREE, GS_KDSPH, GS_NEARPT3};
 
 struct gsFull {
-  unsigned n;
+  size_t n;
   const double *plons;
   const double *plats;
   float **pts;
 };
 
 struct gsNear {
-  unsigned n;
+  size_t n;
   const double *plons;
   const double *plats;
   Coord_T **pts;
@@ -43,8 +43,8 @@ struct gridsearch {
 };
 
 struct gsknn {
-  unsigned ndist;
-  unsigned size;
+  size_t   ndist;
+  size_t   size;
   bool    *mask;
   size_t  *add;
   size_t  *tmpadd;