[cpp][15_bsearch] comments on IterT.

ycl113 · Oct 24, 2018 · 3cd851d · 3cd851d
1 parent 7d24600
commit 3cd851d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/c-cpp/15_bsearch/bsearch.hpp b/c-cpp/15_bsearch/bsearch.hpp
@@ -10,6 +10,9 @@
 
 enum class BsearchPolicy { FIRST, LAST, UNSPECIFIED };
 
+// Liam Huang: The algorithm works right with iterators that meet the ForwardIterator requirement,
+//             but with a bad time complexity. For better performance, iterators should meet
+//             the RandomAccessIterator requirement.
 template <typename IterT,
           typename ValueT = typename std::iterator_traits<IterT>::value_type,
           typename Compare>