-// Copyright (C) 2007-2015 CEA/DEN, EDF R&D
+// Copyright (C) 2007-2016 CEA/DEN, EDF R&D
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
class VertexLess
{
public:
- bool operator()(const double * P_1, const double * P_2)
+ bool operator()(const double * P_1, const double * P_2) const
{
for(int idim=0; idim<DIM; idim++)
{