[map] Return const reference in operator[]

3 years ago · c72d3104ed
parent 69d53f3e7f
commit c72d3104ed
1 changed files with 1 additions and 1 deletions
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@ -211,7 +211,7 @@ struct hb_hashmap_t
  void del (K key) { set_with_hash (key, hb_hash (key), item_t::default_value (), true); }

  /* Has interface. */
-  typedef V value_t;
+  typedef const V& value_t;
  value_t operator [] (K k) const { return get (k); }
  bool has (K key, const V **vp = nullptr) const
  {