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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 *
6 * Copyright:
7 * Guido Tack, 2006
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34#include <gecode/kernel.hh>
35#include <gecode/gist.hh>
36
37namespace Gecode { namespace Gist {
38
39 /// %Choice for %StopBrancher
40 class GECODE_GIST_EXPORT StopChoice : public Choice {
41 public:
42 /// Initialize choice for brancher \a b
43 StopChoice(const Brancher& b);
44 /// Archive into \a e
45 virtual void archive(Archive& e) const;
46 };
47
48 /// %Brancher that stops exploration in %Gist
49 class StopBrancher : public Brancher {
50 protected:
51 /// Flag whether brancher has been executed
52 bool done;
53 /// Construct brancher
54 StopBrancher(Home home);
55 /// Copy constructor
56 StopBrancher(Space& home, StopBrancher& b);
57 public:
58 /// Check status of brancher, return true if alternatives left
59 virtual bool status(const Space&) const;
60 /// Return choice
61 virtual Choice* choice(Space&);
62 /// Return choice
63 virtual Choice* choice(const Space& home, Archive&);
64 /// Perform commit for choice \a _c and alternative \a a
65 virtual ExecStatus commit(Space&, const Choice&, unsigned int);
66 /// Print explanation
67 virtual void print(const Space& home, const Gecode::Choice& c,
68 unsigned int,
69 std::ostream& o) const;
70 /// Copy brancher
71 virtual Actor* copy(Space& home);
72 /// Post brancher
73 static void post(Home home);
74 /// Delete brancher and return its size
75 virtual size_t dispose(Space&);
76 };
77
78}}
79
80// STATISTICS: gist-any