[bit-page] Speed up is_empty()

2 years ago · 9b9a9c6f4a
parent 2f4ed5e939
commit 9b9a9c6f4a
1 changed files with 1 additions and 0 deletions
--- a/src/hb-bit-page.hh
+++ b/src/hb-bit-page.hh
@ -99,6 +99,7 @@ struct hb_bit_page_t

  bool is_empty () const
  {
+    if (has_population ()) return !population;
    return
    + hb_iter (v)
    | hb_none