Fix reverse_range() for empty range

Fixes coretext notdef loop consisting of all default_ignorable glyphs https://code.google.com/p/chromium/issues/detail?id=464755
10 years ago · 9e401f6890
parent 7481bd49d5
commit 9e401f6890
1 changed files with 1 additions and 1 deletions
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@ -443,7 +443,7 @@ hb_buffer_t::reverse_range (unsigned int start,
 {
  unsigned int i, j;

-  if (start == end - 1)
+  if (end - start < 2)
    return;

  for (i = start, j = end - 1; i < j; i++, j--) {