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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 *
6 * Copyright:
7 * Christian Schulte, 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
34namespace Gecode { namespace Int { namespace Channel {
35
36 template<class Info, class Offset, PropCond pc>
37 forceinline
38 Base<Info,Offset,pc>::Base(Home home, int n0, Info* xy0,
39 Offset& ox0, Offset& oy0)
40 : Propagator(home), n(n0), n_na(2*n), ox(ox0), oy(oy0), xy(xy0) {
41 for (int i=0; i<2*n; i++)
42 xy[i].view.subscribe(home,*this,pc);
43 }
44
45 template<class Info, class Offset, PropCond pc>
46 forceinline
47 Base<Info,Offset,pc>::Base(Space& home, Base<Info,Offset,pc>& p)
48 : Propagator(home,p), n(p.n), n_na(p.n_na),
49 xy(home.alloc<Info>(2*n)) {
50 ox.update(p.ox);
51 oy.update(p.oy);
52 for (int i=0; i<2*n; i++)
53 xy[i].update(home,p.xy[i]);
54 }
55
56 template<class Info, class Offset, PropCond pc>
57 PropCost
58 Base<Info,Offset,pc>::cost(const Space&, const ModEventDelta&) const {
59 return PropCost::quadratic(PropCost::LO, 2*n);
60 }
61
62 template<class Info, class Offset, PropCond pc>
63 void
64 Base<Info,Offset,pc>::reschedule(Space& home) {
65 for (int i=0; i<2*n; i++)
66 xy[i].view.reschedule(home,*this,pc);
67 }
68
69 template<class Info, class Offset, PropCond pc>
70 forceinline size_t
71 Base<Info,Offset,pc>::dispose(Space& home) {
72 for (int i=0; i<2*n; i++)
73 xy[i].view.cancel(home,*this,pc);
74 (void) Propagator::dispose(home);
75 return sizeof(*this);
76 }
77
78}}}
79
80// STATISTICS: int-prop
81