Add a default argument for BGL tests and examples, used when no command line argument in given.

BGL/examples/BGL_LCC/distance_lcc.cpp

@@ -15,10 +15,10 @@ typedef CGAL::Linear_cell_complex_for_bgl_combinatorial_map_helper
 typedef boost::graph_traits<LCC>::vertex_descriptor vertex_descriptor;
 typedef boost::graph_traits<LCC>::vertex_iterator   vertex_iterator;
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   LCC lcc;
-  CGAL::read_off(argv[1], lcc);
+  CGAL::read_off((argc>1)?argv[1]:"cube.off", lcc);
 
   // This is the vector where the distance gets written to
   std::vector<int> distance(lcc.vertex_attributes().size());  

BGL/examples/BGL_LCC/incident_vertices_lcc.cpp

@@ -46,10 +46,10 @@ OutputIterator adjacent_vertices_V2(const LCC& g,
 }
 
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   LCC lcc;
-  CGAL::read_off(argv[1], lcc);
+  CGAL::read_off((argc>1)?argv[1]:"cube.off", lcc);
 
   GraphTraits::vertex_iterator vi = vertices(lcc).first;
   std::list<vertex_descriptor> V;

BGL/examples/BGL_LCC/normals_lcc.cpp

@@ -63,13 +63,13 @@ void calculate_face_normals(const HalfedgeGraph& g,
   }
 }
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   typedef boost::property_map<LCC, CGAL::face_index_t>::const_type
                  Face_index_map;
 
   LCC lcc;
-  CGAL::read_off(argv[1], lcc);
+  CGAL::read_off((argc>1)?argv[1]:"cube.off", lcc);
   
   // Ad hoc property_map to store normals. Face_index_map is used to
   // map face_descriptors to a contiguous range of indices. See

BGL/examples/BGL_LCC/range_lcc.cpp

@@ -55,10 +55,10 @@ void fct(const LCC& lcc)
   std::for_each(vb,ve, Fct());
 }
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   LCC lcc;  
-  CGAL::read_off(argv[1], lcc);
+  CGAL::read_off((argc>1)?argv[1]:"cube.off", lcc);
 
   fct(lcc);
   return 0;

BGL/examples/BGL_LCC/transform_iterator_lcc.cpp

@@ -38,10 +38,10 @@ struct Source {
   }
 };
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   LCC lcc;
-  CGAL::read_off(argv[1], lcc);
+  CGAL::read_off((argc>1)?argv[1]:"cube.off", lcc);
   GraphTraits::vertex_descriptor vd = *(vertices(lcc).first);
 
   typedef boost::transform_iterator<Source<LCC>,halfedge_around_target_iterator> adjacent_vertex_iterator; 

BGL/examples/BGL_polyhedron_3/distance.cpp

@@ -15,10 +15,10 @@ typedef boost::graph_traits<Polyhedron>::vertex_iterator   vertex_iterator;
 
 
 
-int main(int, char** argv) {
+int main(int argc, char** argv) {
 
   Polyhedron P;  
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"cube.off");
   in >> P ;
   
   // associate indices to the vertices using the "id()" field of the vertex.

BGL/examples/BGL_polyhedron_3/incident_vertices.cpp

@@ -44,9 +44,9 @@ adjacent_vertices_V2(const Polyhedron& g,
 }
 
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 { 
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"cube.off");
   Polyhedron P;
   in >> P;
   GraphTraits::vertex_iterator vi = vertices(P).first;

BGL/examples/BGL_polyhedron_3/normals.cpp

@@ -63,14 +63,14 @@ void calculate_face_normals(const HalfedgeGraph& g,
   }
 }
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   typedef boost::property_map< 
     Polyhedron,
     CGAL::face_index_t 
     >::const_type Face_index_map;
 
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"cube.off");
   Polyhedron P;
   in >> P ;
   

BGL/examples/BGL_polyhedron_3/range.cpp

@@ -55,10 +55,10 @@ void fct(const Polyhedron& p)
   std::for_each(vb,ve, Fct());
 }
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 {
   Polyhedron P;  
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"cube.off");
   in >> P ;
 
   fct(P);

BGL/examples/BGL_polyhedron_3/transform_iterator.cpp

@@ -37,9 +37,9 @@ struct Source {
   }
 };
 
-int main(int, char** argv)
+int main(int argc, char** argv)
 { 
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"cube.off");
   Polyhedron P;
   in >> P;
   GraphTraits::vertex_descriptor vd = *(vertices(P).first);

BGL/examples/BGL_surface_mesh/prim.cpp

@@ -13,11 +13,11 @@ typedef CGAL::Surface_mesh<Point>                            Mesh;
 
 typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
 
-int main(int, char* argv[]) 
+int main(int argc, char* argv[]) 
 {
   Mesh P;
   //std::cin >> P;
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"data/prim.off");
   in >> P;
   Mesh::Property_map<vertex_descriptor,vertex_descriptor> predecessor;
   predecessor = P.add_property_map<vertex_descriptor,vertex_descriptor>("v:predecessor").first;

BGL/test/BGL/test_circulator.cpp

@@ -30,7 +30,7 @@ typedef CGAL::Halfedge_around_target_iterator<Polyhedron> halfedge_around_target
 typedef CGAL::Halfedge_around_face_iterator<Polyhedron> halfedge_around_face_iterator;
 typedef CGAL::Face_around_face_iterator<Polyhedron> face_around_face_iterator;
 typedef CGAL::Vertex_around_target_iterator<Polyhedron> vertex_around_target_iterator;
-int main(int, char* argv[])
+int main(int argc, char* argv[])
 {
 
   BOOST_CONCEPT_ASSERT((CGAL::Concepts::BidirectionalCirculator<halfedge_around_face_circulator>)) CGAL_UNUSED;
@@ -49,7 +49,7 @@ int main(int, char* argv[])
    BOOST_CONCEPT_ASSERT((boost::BidirectionalIterator<in_edge_iterator>)) CGAL_UNUSED;
    BOOST_CONCEPT_ASSERT((boost::BidirectionalIterator<out_edge_iterator>)) CGAL_UNUSED;
 
-  std::ifstream in(argv[1]);
+  std::ifstream in((argc>1)?argv[1]:"data/cube.off");
   Polyhedron P;
   in >> P;