From bf072b5f2412f5031c03cc68f6071676414c66ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Sun, 21 Aug 2022 02:21:04 +0200
Subject: [PATCH] Add make_iterator_advance make_iterator_uadvance

---
 include/boost/intrusive/detail/iterator.hpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/boost/intrusive/detail/iterator.hpp b/include/boost/intrusive/detail/iterator.hpp
index 9421cc4..ec91cd4 100644
--- a/include/boost/intrusive/detail/iterator.hpp
+++ b/include/boost/intrusive/detail/iterator.hpp
@@ -213,6 +213,14 @@ BOOST_INTRUSIVE_FORCEINLINE typename iterator_enable_if_tag<InputIt, std::random
    it += n;
 }
 
+template<class InputIt, class Distance>
+BOOST_INTRUSIVE_FORCEINLINE typename iterator_enable_if_tag<InputIt, std::random_access_iterator_tag, InputIt>::type
+   make_iterator_advance(InputIt it, Distance n)
+{
+   (iterator_advance)(it, n);
+   return it;
+}
+
 template<class It>
 BOOST_INTRUSIVE_FORCEINLINE 
    void iterator_uadvance(It& it, typename iter_size<It>::type n)
@@ -220,6 +228,14 @@ BOOST_INTRUSIVE_FORCEINLINE
    (iterator_advance)(it, (typename iterator_traits<It>::difference_type)n);
 }
 
+template<class It>
+BOOST_INTRUSIVE_FORCEINLINE
+It make_iterator_uadvance(It it, typename iter_size<It>::type n)
+{
+   (iterator_uadvance)(it, n);
+   return it;
+}
+
 ////////////////////////////////////////
 //    iterator_distance
 ////////////////////////////////////////