Generated on Mon Jul 27 2020 00:00:00 for Gecode by doxygen 1.8.18
rel-op-const-vcc.cpp
Go to the documentation of this file.
1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Guido Tack <tack@gecode.org>
5  *
6  * Contributing authors:
7  * Gabor Szokoli <szokoli@gecode.org>
8  *
9  * Copyright:
10  * Guido Tack, 2004, 2005
11  *
12  * This file is part of Gecode, the generic constraint
13  * development environment:
14  * http://www.gecode.org
15  *
16  * Permission is hereby granted, free of charge, to any person obtaining
17  * a copy of this software and associated documentation files (the
18  * "Software"), to deal in the Software without restriction, including
19  * without limitation the rights to use, copy, modify, merge, publish,
20  * distribute, sublicense, and/or sell copies of the Software, and to
21  * permit persons to whom the Software is furnished to do so, subject to
22  * the following conditions:
23  *
24  * The above copyright notice and this permission notice shall be
25  * included in all copies or substantial portions of the Software.
26  *
27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
31  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
32  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
33  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34  *
35  */
36 
37 #include <gecode/set.hh>
38 #include <gecode/set/rel.hh>
39 #include <gecode/set/rel-op.hh>
40 
41 namespace Gecode {
42  using namespace Gecode::Set;
43  using namespace Gecode::Set::Rel;
44  using namespace Gecode::Set::RelOp;
45 
46  void
48  const IntSet& z) {
49  Set::Limits::check(y, "Set::rel");
50  Set::Limits::check(z, "Set::rel");
51  ConstSetView yv(home, y);
52  ConstSetView zv(home, z);
53 
54  if (op==SOT_MINUS) {
55  switch (r) {
56  case SRT_EQ:
57  {
60  IntSet yc(yrc);
61  ConstSetView cy(home, yc);
65  ::post(home,cy,x,zv)));
66  }
67  break;
68  case SRT_LQ: case SRT_LE: case SRT_GQ: case SRT_GR:
69  {
72  IntSet yc(yrc);
73  ConstSetView cy(home, yc);
78  ::post(home,cy,x,tmp)));
79  dom(home,tmp,r,z);
80  }
81  break;
82  case SRT_NQ:
83  {
84  SetVar tmp(home);
87  ::post(home,tmp,zv)));
90  IntSet yc(yrc);
91  ConstSetView cy(home, yc);
95  ::post(home,cy,x,tmp)));
96  }
97  break;
98  case SRT_SUB:
99  {
102  IntSet yc(yrc);
103  ConstSetView cy(home, yc);
106  ::post(home,cy,x,zv)));
107 
108  }
109  break;
110  case SRT_SUP:
111  {
112  // z <= tmp
113  SetVar tmp(home,z,Limits::min, Limits::max);
114  SetView xv(x);
115 
118  IntSet yc(yrc);
119  ConstSetView cy(home, yc);
120 
124  ::post(home,cy,xv,tmp)));
125  }
126  break;
127  case SRT_DISJ:
128  {
129  SetVar tmp(home);
130  SetView tmpv(tmp);
131  IntSetRanges zi(z);
132  GECODE_ME_FAIL( tmpv.excludeI(home, zi));
133 
136  IntSet yc(yrc);
137  ConstSetView cy(home, yc);
141  ::post(home,cy,x,tmp)));
142  }
143  break;
144  case SRT_CMPL:
145  {
146  SetView xv(x);
151  ConstSetView>::post(home, yv, cx, zv)));
152  }
153  break;
154  default:
155  throw UnknownRelation("Set::rel");
156  }
157  } else {
158  rel(home, y, op, x, r, z);
159  }
160  }
161 
162 }
163 
164 // STATISTICS: set-post
Post propagator for SetVar x
Definition: set.hh:767
Propagator for ternary union
Definition: rel-op.hh:154
Post propagator for SetVar SetOpType SetVar y
Definition: set.hh:767
Range iterator for greatest lower bound of constant set view
Definition: const.hpp:664
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition: macros.hpp:103
Constant view.
Definition: view.hpp:186
static const IntSet empty
Empty set.
Definition: int.hh:283
const int min
Smallest allowed integer in integer set.
Definition: set.hh:99
Post propagator for SetVar SetOpType SetVar SetRelType SetVar z
Definition: set.hh:767
Standard set relation propagators.
Definition: common.hpp:53
@ SRT_LQ
Less or equal ( )
Definition: set.hh:650
SetOpType
Common operations for sets.
Definition: set.hh:660
Standard set operation propagators.
Definition: common.hpp:76
@ SRT_GQ
Greater or equal ( )
Definition: set.hh:652
@ SRT_SUB
Subset ( )
Definition: set.hh:646
@ SRT_SUP
Superset ( )
Definition: set.hh:647
Range iterator for integer sets.
Definition: int.hh:292
@ SRT_DISJ
Disjoint ( )
Definition: set.hh:648
Gecode toplevel namespace
Integer sets.
Definition: int.hh:174
const int max
Largest allowed integer in integer set.
Definition: set.hh:97
A complement iterator spezialized for the BndSet limits.
Definition: var-imp.hpp:293
@ SRT_EQ
Equality ( )
Definition: set.hh:644
Propagator for ternary intersection
Definition: rel-op.hh:124
Home class for posting propagators
Definition: core.hpp:856
void dom(Home home, FloatVar x, FloatVal n)
Propagates .
Definition: dom.cpp:40
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition: set.hh:767
TFE post(PropagatorGroup g)
Only post functions (but not propagators) from g are considered.
Definition: filter.cpp:138
Set variables
Definition: set.hh:127
SetRelType
Common relation types for sets.
Definition: set.hh:643
@ SRT_LE
Less ( )
Definition: set.hh:651
@ SRT_GR
Greater ( )
Definition: set.hh:653
@ SRT_NQ
Disequality ( )
Definition: set.hh:645
ModEvent excludeI(Space &home, I &i)
Remove range sequence described by i from least upper bound.
Definition: set.hpp:160
@ SRT_CMPL
Complement.
Definition: set.hh:649
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVal n)
Propagates .
Definition: rel.cpp:43
Propagator for negated equality
Definition: rel.hh:268
Set view for set variables
Definition: view.hpp:56
void check(int n, const char *l)
Check whether integer n is in range, otherwise throw overflow exception with information l.
Definition: limits.hpp:37
Post propagator for SetVar SetOpType op
Definition: set.hh:767
#define GECODE_ME_FAIL(me)
Check whether modification event me is failed, and fail space home.
Definition: macros.hpp:77
Propagator for the superset of intersection
Definition: rel-op.hh:63
Exception: Unknown relation passed as argument
Definition: exception.hpp:87
Complement set view.
Definition: view.hpp:769
@ SOT_MINUS
Difference.
Definition: set.hh:664
Finite integer sets.
Definition: var-imp.hpp:137