vlistGridsizeMax: changed return value to size_t.

src/cdi.h

@@ -524,7 +524,7 @@ int     vlistNsubtypes(int vlistID);
 
 void    vlistDefNtsteps(int vlistID, int nts);
 int     vlistNtsteps(int vlistID);
-int     vlistGridsizeMax(int vlistID);
+size_t  vlistGridsizeMax(int vlistID);
 int     vlistGrid(int vlistID, int index);
 int     vlistGridIndex(int vlistID, int gridID);
 void    vlistChangeGridIndex(int vlistID, int index, int gridID);

src/grb_write.c

@@ -291,7 +291,7 @@ void grb_write_var(stream_t *streamptr, int varID, int memtype, const void *data
     gridID   = vlistInqVarGrid(vlistID, varID),
     zaxisID  = vlistInqVarZaxis(vlistID, varID),
     nlevs    = zaxisInqSize(zaxisID);
-  size_t gridsize = gridInqSize(gridID),
+  size_t gridsize = gridInqSize(gridID);
   double missval = vlistInqVarMissval(vlistID, varID);
 
   size_t chunkLen = gridsize;

src/vlist.c

@@ -1296,15 +1296,15 @@ int vlistInqModel(int vlistID)
 }
 
 
-int vlistGridsizeMax(int vlistID)
+size_t vlistGridsizeMax(int vlistID)
 {
-  int gridsizemax = 0;
+  size_t gridsizemax = 0;
   vlist_t *vlistptr = vlist_to_pointer(vlistID);
 
   for ( int index = 0 ; index < vlistptr->ngrids ; index++ )
     {
       int gridID = vlistptr->gridIDs[index];
-      int gridsize = gridInqSize(gridID);
+      size_t gridsize = gridInqSize(gridID);
       if ( gridsize > gridsizemax ) gridsizemax = gridsize;
     }