From 7d246008b6ae46872fe431e767834732c91e5f17 Mon Sep 17 00:00:00 2001
From: Liam Huang <liamhuang0205@gmail.com>
Date: Wed, 24 Oct 2018 15:23:44 +0800
Subject: [PATCH] [cpp][15_bsearch] remove hard code for std::less<T>.

---
 c-cpp/15_bsearch/bsearch.hpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/c-cpp/15_bsearch/bsearch.hpp b/c-cpp/15_bsearch/bsearch.hpp
index 29269ec..a7c64e4 100644
--- a/c-cpp/15_bsearch/bsearch.hpp
+++ b/c-cpp/15_bsearch/bsearch.hpp
@@ -12,7 +12,7 @@ enum class BsearchPolicy { FIRST, LAST, UNSPECIFIED };
 
 template <typename IterT,
           typename ValueT = typename std::iterator_traits<IterT>::value_type,
-          typename Compare = std::less<ValueT>>
+          typename Compare>
 IterT bsearch(IterT first,
               IterT last,
              ValueT target,
@@ -50,12 +50,13 @@ IterT bsearch(IterT first,
 }
 
 template <typename IterT,
-          typename ValueT = typename std::iterator_traits<IterT>::value_type>
+          typename ValueT = typename std::iterator_traits<IterT>::value_type,
+          typename Compare = std::less<ValueT>>
 IterT bsearch(IterT first,
               IterT last,
              ValueT target,
       BsearchPolicy policy = BsearchPolicy::UNSPECIFIED) {
-	return bsearch(first, last, target, std::less<ValueT>(), policy);
+	return bsearch(first, last, target, Compare(), policy);
 }
 
 #endif  // BSEARCH_BSEARCH_HPP_