From b1a747b514bf897d3808f4476a545f521cc253d6 Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Tue, 2 Apr 2019 16:32:37 +0200
Subject: [PATCH] Add an conversion operator to tuple into Iterator_range to
 satisfy all versions of clang.

---
 STL_Extension/include/CGAL/Iterator_range.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/STL_Extension/include/CGAL/Iterator_range.h b/STL_Extension/include/CGAL/Iterator_range.h
index 677aa9c44d2..20a2bc8458b 100644
--- a/STL_Extension/include/CGAL/Iterator_range.h
+++ b/STL_Extension/include/CGAL/Iterator_range.h
@@ -78,6 +78,15 @@ namespace CGAL {
     return begin()==end();
   }
 
+  operator std::tuple<I&, I&>()
+  {
+    return std::tuple<I&, I&>{this->first, this->second};
+  }
+
+  operator std::tuple<const I&, const I&>() const 
+  {
+    return std::tuple<const I&, const I&>{this->first, this->second};
+  }
 };
 
   template <typename T>