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stopbrancher.cpp
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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
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9  * Last modified:
10  * $Date: 2013-07-04 17:03:13 +0200 (Thu, 04 Jul 2013) $ by $Author: schulte $
11  * $Revision: 13801 $
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37 
39 
40 namespace Gecode { namespace Gist {
41 
43  size_t
44  StopChoice::size(void) const {
45  return sizeof(StopChoice);
46  }
47  void
49  Choice::archive(e);
50  }
51 
52  StopBrancher::StopBrancher(Home home) : Brancher(home), done(false) {}
53 
55  : Brancher(home, share, b), done(b.done) {}
56 
57  bool
58  StopBrancher::status(const Space&) const {
59  return !done;
60  }
61 
62  Choice*
64  return new StopChoice(*this);
65  }
66  Choice*
68  return new StopChoice(*this);
69  }
71  StopBrancher::commit(Space&, const Choice&, unsigned int) {
72  done = true;
73  return ES_OK;
74  }
75 
76  void
78  unsigned int, std::ostream&) const {
79  }
80 
81  Actor*
82  StopBrancher::copy(Space& home, bool share) {
83  return new (home) StopBrancher(home, share, *this);
84  }
85  void
87  (void) new (home) StopBrancher(home);
88  }
89  size_t
91  return sizeof(*this);
92  }
93 
94 }}
95 
96 // STATISTICS: gist-any
StopChoice(const Brancher &b)
Initialize choice for brancher b.
StopBrancher(Home home)
Construct brancher.
virtual size_t size(void) const
Report size occupied.
virtual bool status(const Space &) const
Check status of brancher, return true if alternatives left.
Computation spaces.
Definition: core.hpp:1362
virtual void archive(Archive &e) const
Archive into e.
Base-class for both propagators and branchers.
Definition: core.hpp:666
virtual ExecStatus commit(Space &, const Choice &, unsigned int)
Perform commit for choice _c and alternative a.
Base-class for branchers.
Definition: core.hpp:1071
virtual void archive(Archive &e) const
Archive into e.
Definition: core.cpp:670
Choice for StopBrancher
Definition: stopbrancher.hh:44
Choice for performing commit
Definition: core.hpp:1036
virtual Choice * choice(Space &)
Return choice.
Archive representation
Definition: archive.hpp:45
ExecStatus
Definition: core.hpp:523
Brancher that stops exploration in Gist
Definition: stopbrancher.hh:55
Execution is okay.
Definition: core.hpp:527
struct Gecode::@518::NNF::@57::@58 b
For binary nodes (and, or, eqv)
Gecode toplevel namespace
virtual void print(const Space &home, const Gecode::Choice &c, unsigned int, std::ostream &o) const
Print explanation.
virtual size_t dispose(Space &)
Delete brancher and return its size.
virtual Actor * copy(Space &home, bool share)
Copy brancher.
Home class for posting propagators
Definition: core.hpp:717
static void post(Home home)
Post brancher.
bool done
Flag whether brancher has been executed.
Definition: stopbrancher.hh:58