From ff77535dd1c492463f33854f50d1119c30bf72c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Thu, 13 Jan 2022 14:47:10 +0100
Subject: [PATCH] add comments about workaround

---
 .../CGAL/Polygon_mesh_processing/internal/Snapping/snap.h     | 4 ++--
 .../include/CGAL/Polygon_mesh_processing/intersection.h       | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Snapping/snap.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Snapping/snap.h
index 62d9853d6b4..be223c4da04 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Snapping/snap.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Snapping/snap.h
@@ -1302,7 +1302,7 @@ std::size_t snap_borders(TriangleMesh& tm_A,
                          ToleranceMap_B tolerance_map_B,
                          const NamedParameters_A& np_A = parameters::default_values(),
                          const NamedParameters_B& np_B = parameters::default_values(),
-                         const typename std::enable_if_t<!std::is_same<TriangleMesh, ToleranceMap_A>::value>* = 0
+                         const typename std::enable_if_t<!std::is_same<TriangleMesh, ToleranceMap_A>::value>* = 0 // Added to please MSVC 2015
   )
 {
   typedef typename boost::graph_traits<TriangleMesh>::halfedge_descriptor        halfedge_descriptor;
@@ -1361,7 +1361,7 @@ template <typename ConcurrencyTag = CGAL::Sequential_tag,
 std::size_t snap_borders(TriangleMesh& tm,
                          ToleranceMap tolerance_map,
                          const CGAL_NP_CLASS& np = parameters::default_values(),
-                         const typename std::enable_if_t<!std::is_same<TriangleMesh, ToleranceMap>::value>* = 0
+                         const typename std::enable_if_t<!std::is_same<TriangleMesh, ToleranceMap>::value>* = 0 // Added to please MSVC 2015
 )
 {
   typedef typename boost::graph_traits<TriangleMesh>::halfedge_descriptor        halfedge_descriptor;
diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/intersection.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/intersection.h
index 57707a31233..18188895c02 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/intersection.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/intersection.h
@@ -1409,7 +1409,7 @@ bool do_intersect(const TriangleMesh& tm,
 #ifndef DOXYGEN_RUNNING
                 , const typename boost::disable_if<
                     typename boost::mpl::or_<
-                      typename boost::is_same<TriangleMesh, Polyline>::type,
+                      typename boost::is_same<TriangleMesh, Polyline>::type, // Added to please MSVC 2015
                       typename boost::mpl::not_<typename boost::has_range_iterator<Polyline>::type>::type, // not a range
                       typename boost::has_range_iterator<
                         typename boost::mpl::eval_if<