[array] Micro-optimize

2 weeks ago · 1a2780735c
parent c87bfe410b
commit 1a2780735c
1 changed files with 2 additions and 1 deletions
--- a/src/hb-array.hh
+++ b/src/hb-array.hh
@ -251,7 +251,8 @@ struct hb_array_t : hb_iter_with_fallback_t<hb_array_t<Type>, Type&>
    if (end < start + 2)
      return;

-    for (unsigned lhs = start, rhs = end - 1; lhs < rhs; lhs++, rhs--)
+    unsigned stop = start + (end - start) / 2;
+    for (unsigned lhs = start, rhs = end - 1; lhs < stop; lhs++, rhs--)
      hb_swap (arrayZ[rhs], arrayZ[lhs]);
  }