[trak] Fix extrapolation at end side
diff --git a/src/hb-aat-layout-trak-table.hh b/src/hb-aat-layout-trak-table.hh
index 4b4bc2f..16729d1 100644
--- a/src/hb-aat-layout-trak-table.hh
+++ b/src/hb-aat-layout-trak-table.hh
@@ -136,7 +136,7 @@
/* TODO bfind() */
hb_array_t<Fixed> size_table ((base+sizeTable).arrayZ, sizes);
unsigned int size_index;
- for (size_index = 0; size_index < sizes; size_index++)
+ for (size_index = 0; size_index < sizes - 1; size_index++)
if (size_table[size_index].to_float () >= csspx)
break;