[map] Add another TODO item

2019-03-30 16:38:06 -07:00 · 2019-03-30 16:38:06 -07:00 · 38d57b9a66
parent 7fd940f899
commit 38d57b9a66
1 changed files with 2 additions and 0 deletions
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@ -34,6 +34,8 @@
 * hb_hashmap_t
 */

+/* TODO if K/V is signed integer, -1 is not a good default.
+ * Don't know how to get to -MAX using bit work. */
 template <typename K, typename V,
 	  K kINVALID = hb_is_pointer (K) ? 0 : (K) -1,
 	  V vINVALID = hb_is_pointer (V) ? 0 : (V) -1>