klao@946: /* -*- C++ -*-
klao@946:  * src/test/new_graph_test.cc - Part of LEMON, a generic C++ optimization library
klao@946:  *
klao@946:  * Copyright (C) 2004 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
klao@946:  * (Egervary Combinatorial Optimization Research Group, EGRES).
klao@946:  *
klao@946:  * Permission to use, modify and distribute this software is granted
klao@946:  * provided that this copyright notice appears in all copies. For
klao@946:  * precise terms see the accompanying LICENSE file.
klao@946:  *
klao@946:  * This software is provided "AS IS" with no warranty of any kind,
klao@946:  * express or implied, and with no claim as to its suitability for any
klao@946:  * purpose.
klao@946:  *
klao@946:  */
klao@946: 
klao@946: #include <lemon/skeletons/graph.h>
klao@946: // #include <boost/concept_check.hpp>
klao@946: 
klao@946: using namespace lemon::skeleton;
klao@946: 
klao@946: // Borrowed from boost:
klao@946: template <class T> inline void ignore_unused_variable_warning(const T&) { }
klao@946: 
klao@946: int main()
klao@946: {
klao@946:   //    This is the "right" way to check a concept:
klao@946:   // boost::function_requires< BaseGraphItemConcept<BaseGraphItem> >();
klao@946: 
klao@946:   //    which is equivalent (considering compile-time checks) to
klao@946:   // BaseGraphItemConcept<BaseGraphItem> bgic;
klao@946:   // bgic.constraints();
klao@946:   //    but not actually call or intatiates anything...
klao@946:   //    It's doing aproximately this:
klao@946:   typedef BaseGraphItemConcept<BaseGraphItem> CC;
klao@946:   void (CC::*x)() = &CC::constraints;
klao@946:   ignore_unused_variable_warning(x);
klao@946:   //    But even more hackish...
klao@946: }