v.category: fix https://trac.osgeo.org/grass/changeset/56286, https://trac.osgeo.org/grass/ticket/2618

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@64826 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.category/main.c

@@ -55,7 +55,7 @@ int main(int argc, char *argv[])
 {
     struct Map_info In, Out;
     static struct line_pnts *Points;
-    struct line_cats *Cats, *TCats;
+    struct line_cats *Cats;
     struct field_info *Fi;
     struct cat_list *Clist;
     int i, j, ret, option, otype, type, with_z, step, id;
@@ -382,11 +382,8 @@ int main(int argc, char *argv[])
 	break;
 
     case (O_TRANS):
-	TCats = Vect_new_cats_struct();
-
 	/* Lines */
 	while ((type = Vect_read_next_line(&In, Points, Cats)) > 0) {
-	    Vect_reset_cats(TCats);
 	    id++;
 	    if (type & otype && (!Clist ||
 				 (Clist &&
@@ -397,25 +394,18 @@ int main(int argc, char *argv[])
 		for (i = 0; i < n; i++) {
 		    if (Cats->field[i] == fields[0]) {
 			scat = Cats->cat[i];
-			Vect_cat_set(TCats, 1, scat);
-		    }
-		}
-		if (scat > -1) {
-		    n = TCats->n_cats;
-		    for (i = 0; i < n; i++) {
-			scat = TCats->cat[i];
-			for (i = 1; i < nfields; i++) {
-			    if (Vect_cat_set(Cats, fields[i], scat) > 0) {
-				G_debug(4, "Copy cat %i of field %i to into field %i", scat, fields[0], fields[i]);
+			for (j = 1; j < nfields; j++) {
+			    if (Vect_cat_set(Cats, fields[j], scat) > 0) {
+				G_debug(4, "Copy cat %i of field %i to field %i", scat, fields[0], fields[j]);
 			    }
 			}
 		    }
-		    nmodified++;
 		}
+		if (scat != -1)
+		    nmodified++;
 	    }
 	    Vect_write_line(&Out, type, Points, Cats);
 	}
-	Vect_destroy_cats_struct(TCats);
 	break;
 
     case (O_DEL):