From ec71a79fdfeff3ba2c57b6f62ec55f51f1f46930 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mael=20Rouxel-Labb=C3=A9?=
 <mael.rouxel.labbe@geometryfactory.com>
Date: Tue, 13 Oct 2020 18:02:28 +0200
Subject: [PATCH] Fix some missing flushers

---
 BGL/include/CGAL/boost/graph/IO/GOCAD.h                   | 2 +-
 BGL/include/CGAL/boost/graph/IO/PLY.h                     | 2 ++
 BGL/include/CGAL/boost/graph/IO/STL.h                     | 3 ++-
 BGL/include/CGAL/boost/graph/IO/VTK.h                     | 2 +-
 Point_set_processing_3/include/CGAL/IO/write_off_points.h | 4 +++-
 Point_set_processing_3/include/CGAL/IO/write_xyz_points.h | 4 +++-
 Stream_support/include/CGAL/IO/GOCAD.h                    | 2 +-
 Stream_support/include/CGAL/IO/STL.h                      | 2 +-
 Stream_support/include/CGAL/IO/VTK.h                      | 2 +-
 9 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/BGL/include/CGAL/boost/graph/IO/GOCAD.h b/BGL/include/CGAL/boost/graph/IO/GOCAD.h
index 108f6fcd4de..474532aeede 100644
--- a/BGL/include/CGAL/boost/graph/IO/GOCAD.h
+++ b/BGL/include/CGAL/boost/graph/IO/GOCAD.h
@@ -309,7 +309,7 @@ bool write_GOCAD(std::ostream& os,
   os << "GOCAD TSurf 1\n"
         "HEADER {\n"
         "name:";
-  os << name << std::endl;
+  os << name << "\n";
   os << "*border:on\n"
         "*border*bstone:on\n"
         "}\n"
diff --git a/BGL/include/CGAL/boost/graph/IO/PLY.h b/BGL/include/CGAL/boost/graph/IO/PLY.h
index 90581b89a3d..94673e1bf8f 100644
--- a/BGL/include/CGAL/boost/graph/IO/PLY.h
+++ b/BGL/include/CGAL/boost/graph/IO/PLY.h
@@ -439,6 +439,8 @@ bool write_PLY(std::ostream& os,
     }
   }
 
+  os << std::flush; // write() doesn't flush
+
   return os.good();
 }
 
diff --git a/BGL/include/CGAL/boost/graph/IO/STL.h b/BGL/include/CGAL/boost/graph/IO/STL.h
index 71f97126c81..5854ce81537 100644
--- a/BGL/include/CGAL/boost/graph/IO/STL.h
+++ b/BGL/include/CGAL/boost/graph/IO/STL.h
@@ -279,6 +279,7 @@ bool write_STL(std::ostream& os,
         os.write(reinterpret_cast<const char *>(&coords[i]), sizeof(coords[i]));
       os << "  ";
     }
+    os << std::flush;
   }
   else
   {
@@ -295,7 +296,7 @@ bool write_STL(std::ostream& os,
       os << "vertex " << p << "\n";
       os << "vertex " << q << "\n";
       os << "vertex " << r << "\n";
-      os << "endloop\nendfacet" << std::endl;
+      os << "endloop\nendfacet" << "\n";
     }
     os << "endsolid" << std::endl;
   }
diff --git a/BGL/include/CGAL/boost/graph/IO/VTK.h b/BGL/include/CGAL/boost/graph/IO/VTK.h
index effbdb32ab0..152604534f1 100644
--- a/BGL/include/CGAL/boost/graph/IO/VTK.h
+++ b/BGL/include/CGAL/boost/graph/IO/VTK.h
@@ -473,7 +473,7 @@ bool write_VTP(std::ostream& os,
     IO::internal::write_polys_points(os, g, np);
     IO::internal::write_polys(os, g, np);
   }
-  os << "</VTKFile>\n";
+  os << "</VTKFile>" << std::endl;
 
   return os.good();
 }
diff --git a/Point_set_processing_3/include/CGAL/IO/write_off_points.h b/Point_set_processing_3/include/CGAL/IO/write_off_points.h
index 6b6981647fd..ecb27a5cbfc 100644
--- a/Point_set_processing_3/include/CGAL/IO/write_off_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/write_off_points.h
@@ -79,9 +79,11 @@ bool write_OFF_PSP(std::ostream& os,
     os << get(point_map, *it);
     if (has_normals)
       os << " " << get(normal_map, *it);
-    os << std::endl;
+    os << "\n";
   }
 
+  os << std::flush;
+
   return !os.fail();
 }
 
diff --git a/Point_set_processing_3/include/CGAL/IO/write_xyz_points.h b/Point_set_processing_3/include/CGAL/IO/write_xyz_points.h
index a49da0352db..4127d71b966 100644
--- a/Point_set_processing_3/include/CGAL/IO/write_xyz_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/write_xyz_points.h
@@ -76,9 +76,11 @@ bool write_XYZ_PSP(std::ostream& os,
     os << get(point_map, *it);
     if(has_normals)
       os << " " << get(normal_map, *it);
-    os << std::endl;
+    os << "\n";
   }
 
+  os << std::flush;
+
   return !os.fail();
 }
 
diff --git a/Stream_support/include/CGAL/IO/GOCAD.h b/Stream_support/include/CGAL/IO/GOCAD.h
index b037d3569ec..1ce4c20f13f 100644
--- a/Stream_support/include/CGAL/IO/GOCAD.h
+++ b/Stream_support/include/CGAL/IO/GOCAD.h
@@ -305,7 +305,7 @@ bool write_GOCAD(std::ostream& os,
   os << "GOCAD TSurf 1\n"
         "HEADER {\n"
         "name:";
-  os << fname << std::endl;
+  os << fname << "\n";
   os << "*border:on\n"
         "*border*bstone:on\n"
         "}\n"
diff --git a/Stream_support/include/CGAL/IO/STL.h b/Stream_support/include/CGAL/IO/STL.h
index 3de5b5ca7f4..b5e8795dd8d 100644
--- a/Stream_support/include/CGAL/IO/STL.h
+++ b/Stream_support/include/CGAL/IO/STL.h
@@ -346,7 +346,7 @@ bool write_STL(std::ostream& os,
       os << "vertex " << p << "\n";
       os << "vertex " << q << "\n";
       os << "vertex " << r << "\n";
-      os << "endloop\nendfacet"<<std::endl;
+      os << "endloop\nendfacet\n";
     }
     os << "endsolid"<<std::endl;
   }
diff --git a/Stream_support/include/CGAL/IO/VTK.h b/Stream_support/include/CGAL/IO/VTK.h
index c957552afba..f78f73d7c5d 100644
--- a/Stream_support/include/CGAL/IO/VTK.h
+++ b/Stream_support/include/CGAL/IO/VTK.h
@@ -434,7 +434,7 @@ bool write_VTP(std::ostream& os,
     IO::internal::write_soup_polys_points(os, points);
     IO::internal::write_soup_polys(os, polygons,size_map, cell_type);
   }
-  os << "</VTKFile>\n";
+  os << "</VTKFile>" << std::endl;
 }
 
 /// \cond SKIP_IN_MANUAL