From 26ee5ba75445bc1c84b64fb5489a300fef445ebe Mon Sep 17 00:00:00 2001
From: Andrey Semashev <Lastique@users.noreply.github.com>
Date: Sun, 9 Jul 2017 18:31:06 +0300
Subject: [PATCH] Remove dependency on boost::prior.

---
 include/boost/iterator/reverse_iterator.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/boost/iterator/reverse_iterator.hpp b/include/boost/iterator/reverse_iterator.hpp
index 7dcf645..8446f23 100644
--- a/include/boost/iterator/reverse_iterator.hpp
+++ b/include/boost/iterator/reverse_iterator.hpp
@@ -7,7 +7,6 @@
 #ifndef BOOST_REVERSE_ITERATOR_23022003THW_HPP
 #define BOOST_REVERSE_ITERATOR_23022003THW_HPP
 
-#include <boost/next_prior.hpp>
 #include <boost/iterator/iterator_adaptor.hpp>
 
 namespace boost {
@@ -39,7 +38,12 @@ namespace iterators {
       {}
 
    private:
-      typename super_t::reference dereference() const { return *boost::prior(this->base()); }
+      typename super_t::reference dereference() const
+      {
+          Iterator it = this->base_reference();
+          --it;
+          return *it;
+      }
 
       void increment() { --this->base_reference(); }
       void decrement() { ++this->base_reference(); }