From d5592717618195d3b980eae3dd6bee8e888971e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20M=C3=B6ller?= <bootsarehax@gmail.com>
Date: Tue, 2 Feb 2016 18:22:50 +0100
Subject: [PATCH] Add trickery for default template arguments

---
 .../CGAL/boost/graph/copy_face_graph.h        | 36 +++++++++++++++----
 1 file changed, 30 insertions(+), 6 deletions(-)

diff --git a/BGL/include/CGAL/boost/graph/copy_face_graph.h b/BGL/include/CGAL/boost/graph/copy_face_graph.h
index 4d96fea4e1b..e961c6a874c 100644
--- a/BGL/include/CGAL/boost/graph/copy_face_graph.h
+++ b/BGL/include/CGAL/boost/graph/copy_face_graph.h
@@ -32,7 +32,9 @@ namespace CGAL {
 /*!
   \ingroup PkgBGLHelperFct
 
-  copies a source FaceGraph into another FaceGraph of different type.
+  copies a source FaceGraph into another FaceGraph of different
+  type. OutputIterators can be provided to produce a mapping between
+  source and target elements.
 
   \tparam SourceMesh a `FaceListGraph`
   \tparam TargetMesh a `FaceListGraph`
@@ -54,11 +56,19 @@ namespace CGAL {
   `vertex_point` and that the `vertex_point` values of `tm` are
   constructible from the ones of `sm`.
 */
-template <typename SourceMesh, typename TargetMesh, typename V2V, typename H2H, typename F2F>
-void copy_face_graph(const SourceMesh& sm, TargetMesh& tm, 
-                     V2V v2v = Emptyset_iterator(), 
-                     H2H h2h = Emptyset_iterator(),
-                     F2F f2f = Emptyset_iterator())
+#if defined(CGAL_CXX11) || defined(DOXYGEN_RUNNING) // Use template default arguments
+template <typename SourceMesh, typename TargetMesh,
+          typename V2V = Emptyset_iterator,
+          typename H2H = Emptyset_iterator,
+          typename F2F = Emptyset_iterator>
+void copy_face_graph(const SourceMesh& sm, TargetMesh& tm,
+                     V2V v2v = V2V(), H2H h2h = H2H(), F2F f2f = F2F())
+#else // use the overloads
+template <typename SourceMesh, typename TargetMesh,
+          typename V2V, typename H2H, typename F2F>
+void copy_face_graph(const SourceMesh& sm, TargetMesh& tm,
+                     V2V v2v, H2H h2h, F2F f2f)
+#endif
 {
   typedef typename boost::graph_traits<SourceMesh>::vertex_descriptor sm_vertex_descriptor;
   typedef typename boost::graph_traits<TargetMesh>::vertex_descriptor tm_vertex_descriptor;
@@ -114,6 +124,20 @@ void copy_face_graph(const SourceMesh& sm, TargetMesh& tm,
   
 }
 
+#if !defined(CGAL_CXX11)
+template <typename SourceMesh, typename TargetMesh>
+void copy_face_graph(const SourceMesh& sm, TargetMesh& tm)
+{ copy_face_graph(sm, tm, Emptyset_iterator(), Emptyset_iterator(), Emptyset_iterator()); }
+
+template <typename SourceMesh, typename TargetMesh, typename V2V>
+void copy_face_graph(const SourceMesh& sm, TargetMesh& tm, V2V v2v)
+{ copy_face_graph(sm, tm, v2v, Emptyset_iterator(), Emptyset_iterator()); }
+
+template <typename SourceMesh, typename TargetMesh, typename V2V, typename H2H>
+void copy_face_graph(const SourceMesh& sm, TargetMesh& tm, V2V v2v, H2H h2h)
+{ copy_face_graph(sm, tm, v2v, h2h, Emptyset_iterator()); }
+#endif
+
 } // namespace CGAL
 
 #endif //  CGAL_BOOST_GRAPH_COPY_FACE_GRAPH_H