1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2011
*
* 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.
*
*/
#ifndef GECODE_INT_MEMBER_HH
#define GECODE_INT_MEMBER_HH
#include <gecode/int.hh>
#include <gecode/int/val-set.hh>
/**
* \namespace Gecode::Int::Member
* \brief Membership propagators
*/
namespace Gecode { namespace Int { namespace Member {
/**
* \brief Membership propagator
*
* Requires \code #include <gecode/int/member.hh> \endcode
* \ingroup FuncIntProp
*/
template<class View>
class Prop : public NaryOnePropagator<View,PC_INT_DOM> {
protected:
using NaryOnePropagator<View,PC_INT_DOM>::x;
using NaryOnePropagator<View,PC_INT_DOM>::y;
/// Value set storing the values of already assigned views
ValSet vs;
/// Add values of assigned views in \a x to value set \a va
static void add(Space& home, ValSet& vs, ViewArray<View>& x);
/// Eliminate views from \a x that are not equal to \a y or ar subsumed by \a vs
void eliminate(Space& home);
/// Constructor for posting
Prop(Home home, ValSet& vs, ViewArray<View>& x, View y);
/// Constructor for cloning \a p
Prop(Space& home, Prop<View>& p);
public:
/// Cost function
virtual PropCost cost(const Space&, const ModEventDelta& med) const;
/// Copy propagator during cloning
virtual Propagator* copy(Space& home);
/// Perform propagation
virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
/// Post propagator for \f$y\in \{x_0,\ldots,x_{|x|-1}\}\f$
static ExecStatus post(Home home, ViewArray<View>& x, View y);
/// Post propagator for \f$y\in vs\cup \{x_0,\ldots,x_{|x|-1}\}\f$
static ExecStatus post(Home home, ValSet& vs, ViewArray<View>& x, View y);
/// Delete propagator and return its size
virtual size_t dispose(Space& home);
};
/**
* \brief Reified membership propagator
*
* Requires \code #include <gecode/int/member.hh> \endcode
* \ingroup FuncIntProp
*/
template<class View, ReifyMode rm>
class ReProp : public Prop<View> {
protected:
using Prop<View>::x;
using Prop<View>::y;
using Prop<View>::vs;
using Prop<View>::add;
using Prop<View>::eliminate;
/// Boolean control variable
BoolView b;
/// Constructor for posting
ReProp(Home home, ValSet& vs, ViewArray<View>& x, View y, BoolView b);
/// Constructor for cloning \a p
ReProp(Space& home, ReProp<View,rm>& p);
public:
/// Copy propagator during cloning
virtual Propagator* copy(Space& home);
/// Perform propagation
virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
/// Post propagator for \f$\left(y\in \{x_0,\ldots,x_{|x|-1}\}\right)\Leftrightarrow b\f$
static ExecStatus post(Home home, ViewArray<View>& x, View y, BoolView b);
/// Delete propagator and return its size
virtual size_t dispose(Space& home);
};
}}}
#include <gecode/int/member/prop.hpp>
#include <gecode/int/member/re-prop.hpp>
#endif
// STATISTICS: int-prop
|
