Fix boost <1.60 compilation and fix boost 1.73+ warnings

1 files changed, 4 insertions, 5 deletions

diff --git a/src/checkpoints/checkpoints.cpp b/src/checkpoints/checkpoints.cpp
index 852e21318..7214a3056 100644
--- a/src/checkpoints/checkpoints.cpp
+++ b/src/checkpoints/checkpoints.cpp
@@ -34,6 +34,7 @@
 #include "string_tools.h"
 #include "storages/portable_storage_template_helper.h" // epee json include
 #include "serialization/keyvalue_serialization.h"
+#include <functional>
 #include <vector>
 
 using namespace epee;
@@ -133,11 +134,9 @@ namespace cryptonote
   //---------------------------------------------------------------------------
   uint64_t checkpoints::get_max_height() const
   {
-    std::map< uint64_t, crypto::hash >::const_iterator highest = 
-        std::max_element( m_points.begin(), m_points.end(),
-                         ( boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, boost::placeholders::_1) <
-                           boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, boost::placeholders::_2 ) ) );
-    return highest->first;
+    if (m_points.empty())
+      return 0;
+    return m_points.rbegin()->first;
   }
   //---------------------------------------------------------------------------
   const std::map<uint64_t, crypto::hash>& checkpoints::get_points() const