int-noview.hpp

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2002
 *
 *  Last modified:
 *     $Date: 2011-09-28 14:14:32 +0200 (Wed, 28 Sep 2011) $ by $Author: tack $
 *     $Revision: 12417 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
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 *  included in all copies or substantial portions of the Software.
 *
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 */

namespace Gecode {

  namespace Int { namespace Linear {

    class NoView : public ConstView<IntView> {
    public:


      NoView(void) {}



      int min(void) const { return 0; }
      int max(void) const { return 0; }
      int med(void) const { return 0; }
      int val(void) const { return 0; }

      unsigned int size(void) const { return 1; }
      unsigned int width(void) const { return 1; }
      unsigned int regret_min(void) const { return 0; }
      unsigned int regret_max(void) const { return 0; }



      bool range(void) const { return true; }
      bool assigned(void) const { return true; }

      bool in(int n) const { (void) n; return false; }
      bool in(double n) const { (void) n; return false; }



      ModEvent lq(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent lq(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent le(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent le(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent gq(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent gq(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent gr(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent gr(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent nq(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent nq(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent eq(Space& home, int n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
      ModEvent eq(Space& home, double n) {
        (void) home; (void) n;
        return ME_INT_NONE;
      }
    };

    template<class Char, class Traits>
    std::basic_ostream<Char,Traits>&
    operator <<(std::basic_ostream<Char,Traits>& os, const NoView&) { return os; }

  }}


  template<>
  class ViewArray<Int::Linear::NoView> {
  public:


    ViewArray(void) {}
    ViewArray(Space& home, int m) { (void) home; (void) m; }
    ViewArray(const ViewArray<Int::Linear::NoView>&) {}
    ViewArray(Space&, const ViewArray<Int::Linear::NoView>&) {}
    const ViewArray<Int::Linear::NoView>& operator =(const ViewArray<Int::Linear::NoView>&) { return *this; }



    int size(void) const { return 0; }
    void size(int n) { (void) n; }



    Int::Linear::NoView operator [](int i) {
      (void)  i;
      Int::Linear::NoView n;
      return n;
    }
    const Int::Linear::NoView operator [](int i) const {
      (void)  i;
      Int::Linear::NoView n;
      return n;
    }



    void subscribe(Space&, Propagator& p, PropCond pc, bool process=true) {
      (void) p; (void) pc; (void) process;
    }
    void cancel(Space& home, Propagator& p, PropCond pc) {
      (void) home; (void) p; (void) pc;
    }



    void update(Space&, bool share, ViewArray<Int::Linear::NoView>& a) {
      (void) share; (void) a;
    }



    void move_fst(int i) { (void) i; }
    void move_lst(int i) { (void) i; }
  private:
    static void* operator new(size_t);
    static void  operator delete(void*,size_t);
  };

}


// STATISTICS: int-prop