1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/lemon/concept_check.h	Sat Dec 22 12:35:00 2007 +0000
     1.3 @@ -0,0 +1,105 @@
     1.4 +/* -*- C++ -*-
     1.5 + *
     1.6 + * This file is a part of LEMON, a generic C++ optimization library
     1.7 + *
     1.8 + * Copyright (C) 2003-2007
     1.9 + * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
    1.10 + * (Egervary Research Group on Combinatorial Optimization, EGRES).
    1.11 + *
    1.12 + * Permission to use, modify and distribute this software is granted
    1.13 + * provided that this copyright notice appears in all copies. For
    1.14 + * precise terms see the accompanying LICENSE file.
    1.15 + *
    1.16 + * This software is provided "AS IS" with no warranty of any kind,
    1.17 + * express or implied, and with no claim as to its suitability for any
    1.18 + * purpose.
    1.19 + *
    1.20 + */
    1.21 +
    1.22 +// Modified for use in LEMON.
    1.23 +// We should really consider using Boost...
    1.24 +
    1.25 +//
    1.26 +// (C) Copyright Jeremy Siek 2000.
    1.27 +// Distributed under the Boost Software License, Version 1.0. (See
    1.28 +// accompanying file LICENSE_1_0.txt or copy at
    1.29 +// http://www.boost.org/LICENSE_1_0.txt)
    1.30 +//
    1.31 +// Revision History:
    1.32 +//   05 May   2001: Workarounds for HP aCC from Thomas Matelich. (Jeremy Siek)
    1.33 +//   02 April 2001: Removed limits header altogether. (Jeremy Siek)
    1.34 +//   01 April 2001: Modified to use new <boost/limits.hpp> header. (JMaddock)
    1.35 +//
    1.36 +
    1.37 +// See http://www.boost.org/libs/concept_check for documentation.
    1.38 +
    1.39 +#ifndef LEMON_BOOST_CONCEPT_CHECKS_HPP
    1.40 +#define LEMON_BOOST_CONCEPT_CHECKS_HPP
    1.41 +
    1.42 +namespace lemon {
    1.43 +
    1.44 +  /*
    1.45 +    "inline" is used for ignore_unused_variable_warning()
    1.46 +    and function_requires() to make sure there is no
    1.47 +    overtarget with g++.
    1.48 +  */
    1.49 +
    1.50 +  template <class T> inline void ignore_unused_variable_warning(const T&) { }
    1.51 +
    1.52 +  template <class Concept>
    1.53 +  inline void function_requires()
    1.54 +  {
    1.55 +#if !defined(NDEBUG)
    1.56 +    void (Concept::*x)() = & Concept::constraints;
    1.57 +    ignore_unused_variable_warning(x);
    1.58 +#endif
    1.59 +  }
    1.60 +
    1.61 +  template <typename Concept, typename Type>
    1.62 +  inline void checkConcept() {
    1.63 +#if !defined(NDEBUG)
    1.64 +    typedef typename Concept::template Constraints<Type> ConceptCheck;
    1.65 +    void (ConceptCheck::*x)() = & ConceptCheck::constraints;
    1.66 +    ignore_unused_variable_warning(x);
    1.67 +#endif
    1.68 +  }
    1.69 +
    1.70 +#define BOOST_CLASS_REQUIRE(type_var, ns, concept) \
    1.71 +  typedef void (ns::concept <type_var>::* func##type_var##concept)(); \
    1.72 +  template <func##type_var##concept Tp1_> \
    1.73 +  struct concept_checking_##type_var##concept { }; \
    1.74 +  typedef concept_checking_##type_var##concept< \
    1.75 +    BOOST_FPTR ns::concept<type_var>::constraints> \
    1.76 +    concept_checking_typedef_##type_var##concept
    1.77 +
    1.78 +#define BOOST_CLASS_REQUIRE2(type_var1, type_var2, ns, concept) \
    1.79 +  typedef void (ns::concept <type_var1,type_var2>::* \
    1.80 +     func##type_var1##type_var2##concept)(); \
    1.81 +  template <func##type_var1##type_var2##concept Tp1_> \
    1.82 +  struct concept_checking_##type_var1##type_var2##concept { }; \
    1.83 +  typedef concept_checking_##type_var1##type_var2##concept< \
    1.84 +    BOOST_FPTR ns::concept<type_var1,type_var2>::constraints> \
    1.85 +    concept_checking_typedef_##type_var1##type_var2##concept
    1.86 +
    1.87 +#define BOOST_CLASS_REQUIRE3(tv1, tv2, tv3, ns, concept) \
    1.88 +  typedef void (ns::concept <tv1,tv2,tv3>::* \
    1.89 +     func##tv1##tv2##tv3##concept)(); \
    1.90 +  template <func##tv1##tv2##tv3##concept Tp1_> \
    1.91 +  struct concept_checking_##tv1##tv2##tv3##concept { }; \
    1.92 +  typedef concept_checking_##tv1##tv2##tv3##concept< \
    1.93 +    BOOST_FPTR ns::concept<tv1,tv2,tv3>::constraints> \
    1.94 +    concept_checking_typedef_##tv1##tv2##tv3##concept
    1.95 +
    1.96 +#define BOOST_CLASS_REQUIRE4(tv1, tv2, tv3, tv4, ns, concept) \
    1.97 +  typedef void (ns::concept <tv1,tv2,tv3,tv4>::* \
    1.98 +     func##tv1##tv2##tv3##tv4##concept)(); \
    1.99 +  template <func##tv1##tv2##tv3##tv4##concept Tp1_> \
   1.100 +  struct concept_checking_##tv1##tv2##tv3##tv4##concept { }; \
   1.101 +  typedef concept_checking_##tv1##tv2##tv3##tv4##concept< \
   1.102 +    BOOST_FPTR ns::concept<tv1,tv2,tv3,tv4>::constraints> \
   1.103 +    concept_checking_typedef_##tv1##tv2##tv3##tv4##concept
   1.104 +
   1.105 +
   1.106 +} // namespace lemon
   1.107 +
   1.108 +#endif // LEMON_BOOST_CONCEPT_CHECKS_HPP