From 9d0d5199ba11307025cffa403dfbebf36a000c75 Mon Sep 17 00:00:00 2001
From: Neil Groves <neilgroves@googlemail.com>
Date: Sat, 8 Mar 2014 21:54:55 +0000
Subject: [PATCH] ticket 9072 iterator_range accept reference to function type.

---
 include/boost/range/iterator_range_core.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/boost/range/iterator_range_core.hpp b/include/boost/range/iterator_range_core.hpp
index e30f1a6..ba842ab 100644
--- a/include/boost/range/iterator_range_core.hpp
+++ b/include/boost/range/iterator_range_core.hpp
@@ -7,6 +7,10 @@
 //
 // For more information, see http://www.boost.org/libs/range/
 //
+// Credits:
+// 'michel' reported Trac 9072 which included a patch for allowing references
+// to function types.
+//
 #ifndef BOOST_RANGE_ITERATOR_RANGE_CORE_HPP_INCLUDED
 #define BOOST_RANGE_ITERATOR_RANGE_CORE_HPP_INCLUDED
 
@@ -25,6 +29,7 @@
 #include <boost/type_traits/is_abstract.hpp>
 #include <boost/type_traits/is_array.hpp>
 #include <boost/type_traits/is_convertible.hpp>
+#include <boost/type_traits/is_function.hpp>
 #include <boost/type_traits/is_pointer.hpp>
 #include <boost/type_traits/is_same.hpp>
 #include <boost/range/functions.hpp>
@@ -300,6 +305,9 @@ public:
                 >,
                 boost::is_array<
                     BOOST_DEDUCED_TYPENAME base_type::value_type
+                >,
+                boost::is_function<
+                    BOOST_DEDUCED_TYPENAME base_type::value_type
                 >
             >,
             BOOST_DEDUCED_TYPENAME base_type::reference,