sparse_set: use scoped iterators within ::sort

src/entt/entity/sparse_set.hpp

@@ -1040,7 +1040,7 @@ public:
      */
     template<typename Compare, typename Sort = std_sort, typename... Args>
     void sort(Compare compare, Sort algo = Sort{}, Args &&...args) {
-        sort_n(packed.size(), std::move(compare), std::move(algo), std::forward<Args>(args)...);
+        sort_n(static_cast<size_type>(end(0) - begin(0)), std::move(compare), std::move(algo), std::forward<Args>(args)...);
     }
 
     /**

test/entt/entity/sparse_set.cpp

@@ -1745,11 +1745,11 @@ ENTT_DEBUG_TYPED_TEST(SparseSetDeathTest, Sort) {
         set.erase(entity);
 
         switch(policy) {
-        case entt::deletion_policy::swap_and_pop: {
+        case entt::deletion_policy::swap_and_pop:
+        case entt::deletion_policy::swap_only: {
             SUCCEED();
         } break;
-        case entt::deletion_policy::in_place:
-        case entt::deletion_policy::swap_only: {
+        case entt::deletion_policy::in_place: {
             ASSERT_DEATH(set.sort(std::less{});, "");
         } break;
         }