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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 * Guido Tack <tack@gecode.org>
6 * Vincent Barichard <Vincent.Barichard@univ-angers.fr>
7 *
8 * Copyright:
9 * Christian Schulte, 2002
10 * Guido Tack, 2004
11 * Vincent Barichard, 2012
12 *
13 * This file is part of Gecode, the generic constraint
14 * development environment:
15 * http://www.gecode.org
16 *
17 * Permission is hereby granted, free of charge, to any person obtaining
18 * a copy of this software and associated documentation files (the
19 * "Software"), to deal in the Software without restriction, including
20 * without limitation the rights to use, copy, modify, merge, publish,
21 * distribute, sublicense, and/or sell copies of the Software, and to
22 * permit persons to whom the Software is furnished to do so, subject to
23 * the following conditions:
24 *
25 * The above copyright notice and this permission notice shall be
26 * included in all copies or substantial portions of the Software.
27 *
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 *
36 */
37
38#ifndef GECODE_FLOAT_CHANNEL_HH
39#define GECODE_FLOAT_CHANNEL_HH
40
41#include <gecode/int.hh>
42#include <gecode/float.hh>
43
44/**
45 * \namespace Gecode::Float::Channel
46 * \brief %Channel propagators
47 */
48
49namespace Gecode { namespace Float { namespace Channel {
50
51 /**
52 * \brief %Propagator for bounds consistent integer part operator
53 *
54 * Requires \code #include <gecode/float/arithmetic.hh> \endcode
55 * \ingroup FuncFloatProp
56 */
57 template<class A, class B>
58 class Channel :
59 public MixBinaryPropagator<A,PC_FLOAT_BND,B,Gecode::Int::PC_INT_BND> {
60 protected:
61 using MixBinaryPropagator<A,PC_FLOAT_BND,B,Gecode::Int::PC_INT_BND>::x0;
62 using MixBinaryPropagator<A,PC_FLOAT_BND,B,Gecode::Int::PC_INT_BND>::x1;
63
64 /// Constructor for cloning \a p
65 Channel(Space& home, Channel& p);
66 /// Constructor for creation
67 Channel(Home home, A x0, B x1);
68 public:
69 /// Create copy during cloning
70 virtual Actor* copy(Space& home);
71 /// Perform propagation
72 virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
73 /// Post propagator for \f$ int(x_0) = x_1\f$
74 static ExecStatus post(Home home, A x0, B x1);
75 };
76
77}}}
78
79#include <gecode/float/channel/channel.hpp>
80
81#endif
82
83// STATISTICS: float-prop