fix crash in hb_map_t::clear()

in case called immediately after init()
6 years ago · eebc21c8de
parent a17ed8459e
commit eebc21c8de
1 changed files with 2 additions and 1 deletions
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@ -170,7 +170,8 @@ struct hb_map_t

  void clear ()
  {
-    memset (items, 0xFF, ((size_t) mask + 1) * sizeof (item_t));
+    if (items)
+      memset (items, 0xFF, ((size_t) mask + 1) * sizeof (item_t));
    population = occupancy = 0;
  }