/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2003
 *
 *  Last modified:
 *     $Date: 2006-08-25 17:05:19 +0200 (Fri, 25 Aug 2006) $ by $Author: schulte $
 *     $Revision: 3572 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  See the file "LICENSE" for information on usage and
 *  redistribution of this file, and for a
 *     DISCLAIMER OF ALL WARRANTIES.
 *
 */

#include "gecode/int/rel.hh"

namespace Gecode { namespace Int { namespace Count {

  /*
   * Counting domain-consistent equality
   *
   */

  template <class VX>
  forceinline RelTest
  holds(VX x, ConstIntView y) {
    return rtest_eq_dom(x,y.val());
  }
  template <class VX>
  forceinline RelTest
  holds(VX x, VX y) {
    return rtest_eq_dom(x,y);
  }
  template <class VX>
  forceinline ExecStatus
  post_true(Space* home, VX x, ConstIntView y) {
    GECODE_ME_CHECK(x.eq(home,y.val()));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_true(Space* home, ViewArray<VX>& x, ConstIntView y) {
    for (int i = x.size(); i--; )
      GECODE_ME_CHECK(x[i].eq(home,y.val()));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_false(Space* home, VX x, ConstIntView y) {
    GECODE_ME_CHECK(x.nq(home,y.val()));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_false(Space* home, ViewArray<VX>& x, ConstIntView y) {
    for (int i = x.size(); i--; )
      GECODE_ME_CHECK(x[i].nq(home,y.val()));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_true(Space* home, ViewArray<VX>& x, VX y) {
    ViewArray<VX> z(home,x.size()+1);
    z[x.size()] = y;
    for (int i = x.size(); i--; )
      z[i] = x[i];
    GECODE_ES_CHECK(Rel::NaryEqDom<VX>::post(home,z));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_true(Space* home, VX x, VX y) {
    GECODE_ES_CHECK((Rel::EqDom<VX,VX>::post(home,x,y)));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_false(Space* home, ViewArray<VX>& x, VX y) {
    for (int i = x.size(); i--; )
      GECODE_ES_CHECK(Rel::Nq<VX>::post(home,x[i],y));
    return ES_SUBSUMED;
  }
  template <class VX>
  forceinline ExecStatus
  post_false(Space* home, VX x, VX y) {
    GECODE_ES_CHECK(Rel::Nq<VX>::post(home,x,y));
    return ES_SUBSUMED;
  }

}}}

// STATISTICS: int-prop