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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: 2009-09-08 21:10:29 +0200 (Tue, 08 Sep 2009) $ by $Author: schulte $
 *     $Revision: 9692 $
 *
 *  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:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

namespace Gecode {

  namespace Int { namespace Linear {

    class NoView : public ConstViewBase {
    public:


      NoView(void) {}
      void init(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 { n=n; return false; }
      bool in(double n) const { n=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;
      }



      static void schedule(Space& home, Propagator& p, ModEvent me) {
        (void) home; (void) p; (void) me;
      }
      static ModEvent med(const Propagator& p) {
        (void) p;
        return ME_INT_NONE;
      }
      static ModEventDelta med(ModEvent me) {
        (void) me;
        return ME_INT_NONE;
      }



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



      void update(Space& home, bool share, NoView& x) {
        (void) home; (void) share; (void) x;
      }



      bool operator ==(const NoView& x) const { (void) x; return true; }
      bool operator !=(const NoView& x) const { (void) x; return false; }
      bool operator < (const NoView& x) const { (void) x; return false; }
      bool operator > (const NoView& x) const { (void) x; return false; }
    };

  }}


  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;
    }



    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; }
    void move_fst(int i, Propagator& p, PropCond pc) {
      (void) i; (void) p; (void) pc;
    }
    void move_lst(int i, Propagator& p, PropCond pc) {
      (void) i; (void) p; (void) pc;
    }



    void drop_fst(int i);
    void drop_lst(int i);
    void drop_fst(int i, Propagator& p, PropCond pc) {
      (void) i; (void) p; (void) pc;
    }
    void drop_lst(int i, Propagator& p, PropCond pc) {
      (void) i; (void) p; (void) pc;
    }



    bool equal(void) const { return false; }
    bool equal(const Int::Linear::NoView& y) const {
      (void) y;
      return false;
    }
    void unique(void) {}



    bool shared(void) const { return false; }
    bool shared(const Int::Linear::NoView& y) const {
      (void) y;
      return false;
    }

  private:
    static void* operator new(size_t);
    static void  operator delete(void*,size_t);
  };

}


// STATISTICS: int-prop