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view-values.cpp
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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, 2012
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
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33
34#include <gecode/int/branch.hh>
35
36namespace Gecode { namespace Int { namespace Branch {
37
39 : PosChoice(b,x.size(),p), n(0) {
40 for (ViewRanges<IntView> r(x); r(); ++r)
41 n++;
42 pm = heap.alloc<PosMin>(n+1);
43 unsigned int w=0;
44 int i=0;
45 for (ViewRanges<IntView> r(x); r(); ++r) {
46 pm[i].min = r.min();
47 pm[i].pos = w;
48 w += r.width(); i++;
49 }
50 pm[i].pos = w;
51 }
52
53 PosValuesChoice::PosValuesChoice(const Brancher& b, unsigned int a, Pos p,
54 Archive& e)
55 : PosChoice(b,a,p) {
56 e >> n;
57 pm = heap.alloc<PosMin>(n+1);
58 for (unsigned int i=0; i<n+1; i++) {
59 e >> pm[i].pos;
60 e >> pm[i].min;
61 }
62 }
63
65 heap.free<PosMin>(pm,n+1);
66 }
67
68 forceinline void
71 e << this->alternatives() << n;
72 for (unsigned int i=0; i<n+1; i++) {
73 e << pm[i].pos;
74 e << pm[i].min;
75 }
76 }
77
78}}}
79
80// STATISTICS: int-branch
Archive representation
Definition archive.hpp:42
Base-class for branchers.
Definition core.hpp:1444
unsigned int alternatives(void) const
Return number of alternatives.
Definition core.hpp:3777
virtual ~PosValuesChoice(void)
Deallocate.
PosValuesChoice(const Brancher &b, const Pos &p, IntView x)
Initialize choice for brancher b, position p, and view x.
virtual void archive(Archive &e) const
Archive into e.
Integer view for integer variables.
Definition view.hpp:129
Range iterator for integer views.
Definition view.hpp:54
virtual void archive(Archive &e) const
Archive into e.
Definition view.hpp:130
PosChoice(const PosChoice &c)
Initialize.
Position information.
Definition view.hpp:44
Heap heap
The single global heap.
Definition heap.cpp:44
Integer branchers.
Finite domain integers.
Gecode toplevel namespace
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition set.hh:773
Post propagator for SetVar x
Definition set.hh:773
#define forceinline
Definition config.hpp:194