coverind.hpp: Use template for rank/select support

coverind.hpp

@@ -15,8 +15,8 @@ template <class bv> class Coverind {
 
 private:
   bv start, end;
-  rank_support_sd<1> rank_start, rank_end;
-  select_support_sd<0> select_start, select_end;
+  typename bv::rank_1_type rank_start, rank_end;
+  typename bv::select_0_type select_start, select_end;
 public:
 
   /**
@@ -68,11 +68,11 @@ Coverind<bv>::Coverind(const std::string start_file, const std::string end_file)
   start = bv(create_bitvector_from_file(start_file));
   end = bv(create_bitvector_from_file(end_file));
 
-  rank_start = rank_support_sd<1>(&start);
-  rank_end = rank_support_sd<1>(&end);
+  rank_start = typename bv::rank_1_type(&start);
+  rank_end = typename bv::rank_1_type(&end);
 
-  select_start = select_support_sd<0>(&start);
-  select_end = select_support_sd<0>(&end);
+  select_start = typename bv::select_0_type(&start);
+  select_end = typename bv::select_0_type(&end);
 }
 
 template <class bv>