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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Guido Tack <tack@gecode.org>
5 * Christian Schulte <schulte@gecode.org>
6 *
7 * Contributing authors:
8 * Gabor Szokoli <szokoli@gecode.org>
9 *
10 * Copyright:
11 * Guido Tack, 2004
12 * Christian Schulte, 2004
13 * Gabor Szokoli, 2004
14 *
15 * This file is part of Gecode, the generic constraint
16 * development environment:
17 * http://www.gecode.org
18 *
19 * Permission is hereby granted, free of charge, to any person obtaining
20 * a copy of this software and associated documentation files (the
21 * "Software"), to deal in the Software without restriction, including
22 * without limitation the rights to use, copy, modify, merge, publish,
23 * distribute, sublicense, and/or sell copies of the Software, and to
24 * permit persons to whom the Software is furnished to do so, subject to
25 * the following conditions:
26 *
27 * The above copyright notice and this permission notice shall be
28 * included in all copies or substantial portions of the Software.
29 *
30 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
31 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
32 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
33 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
34 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
35 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
36 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 *
38 */
39
40#ifndef GECODE_SET_SEQUENCE_HH
41#define GECODE_SET_SEQUENCE_HH
42
43#include <gecode/set.hh>
44
45namespace Gecode { namespace Set { namespace Sequence {
46
47 /**
48 * \namespace Gecode::Set::Sequence
49 * \brief Propagators for ordered sequences of sets
50 */
51
52 /**
53 * \brief %Propagator for the sequence constraint
54 *
55 * Requires \code #include <gecode/set/sequence.hh> \endcode
56 * \ingroup FuncSetProp
57 */
58
59 class Seq : public NaryPropagator<SetView, PC_SET_ANY> {
60 protected:
61 /// Constructor for cloning \a p
62 Seq(Space& home, Seq& p);
63 /// Constructor for posting
64 Seq(Home home, ViewArray<SetView>&);
65 public:
66 /// Copy propagator during cloning
67 GECODE_SET_EXPORT virtual Actor* copy(Space& home);
68 /// Perform propagation
69 GECODE_SET_EXPORT virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
70 /// Post propagator \f$\forall 0\leq i< |x|-1 : \max(x_i)<\min(x_{i+1})\f$
71 static ExecStatus post(Home home,ViewArray<SetView>);
72 };
73
74 /**
75 * \brief %Propagator for the sequenced union constraint
76 *
77 * Requires \code #include <gecode/set/sequence.hh> \endcode
78 * \ingroup FuncSetProp
79 */
80
81 class SeqU : public NaryOnePropagator<SetView,PC_SET_ANY> {
82 protected:
83 GLBndSet unionOfDets; //Union of determined variables dropped form x.
84 /// Constructor for cloning \a p
85 SeqU(Space& home, SeqU& p);
86 /// Constructor for posting
87 SeqU(Home home, ViewArray<SetView>&, SetView);
88 ExecStatus propagateSeqUnion(Space& home,
89 bool& modified, ViewArray<SetView>& x,
90 SetView& y);
91 public:
92 /// Copy propagator during cloning
93 GECODE_SET_EXPORT virtual Actor* copy(Space& home);
94 /// Perform propagation
95 GECODE_SET_EXPORT virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
96 /// Post propagator \f$\forall 0\leq i< |x|-1 : \max(x_i)<\min(x_{i+1})\f$ and \f$ x = \bigcup_{i\in\{0,\dots,n-1\}} y_i \f$
97 static ExecStatus post(Home home,ViewArray<SetView>, SetView);
98 };
99
100
101}}}
102
103#include <gecode/set/rel.hh>
104#include <gecode/set/rel-op/common.hpp>
105#include <gecode/set/sequence/common.hpp>
106#include <gecode/set/sequence/seq.hpp>
107#include <gecode/set/sequence/seq-u.hpp>
108
109#endif
110
111// STATISTICS: set-prop