Generated on Tue Jan 19 2021 06:15:49 for Gecode by doxygen 1.8.13
exec.cpp
Go to the documentation of this file.
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, 2009
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 
34 #include "test/int.hh"
35 
36 #include <gecode/minimodel.hh>
37 
38 namespace Test { namespace Int {
39 
41  namespace Exec {
42 
48  class IntWait : public Test {
50  protected:
52  bool sf;
53  public:
55  IntWait(int n, bool sf0)
56  : Test("Wait::Int::"+str(n)+"::"+
57  (sf0 ? "std::function" : "funptr"),n,0,n,false), sf(sf0) {}
59  virtual bool solution(const Assignment& x) const {
60  for (int i=0; i<x.size(); i++)
61  for (int j=i+1; j<x.size(); j++)
62  if (x[i] == x[j])
63  return false;
64  return true;
65  }
67  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
68  using namespace Gecode;
69  auto f = static_cast<std::function<void(Space&)>>
70  ([](Space& home) { c(home); });
71  if (x.size() > 1) {
72  if (sf)
73  Gecode::wait(home, x, f);
74  else
75  Gecode::wait(home, x, &c);
76  } else {
77  if (sf)
78  Gecode::wait(home, x[0], f);
79  else
80  Gecode::wait(home, x[0], &c);
81  }
82  }
84  static void c(Gecode::Space& _home) {
85  TestSpace& home = static_cast<TestSpace&>(_home);
86  for (int i=0; i<home.x.size(); i++)
87  for (int j=i+1; j<home.x.size(); j++)
88  if (home.x[i].val() == home.x[j].val())
89  home.fail();
90  }
91  };
92 
94  class BoolWait : public Test {
95  protected:
97  bool sf;
98  public:
100  BoolWait(int n, bool sf0)
101  : Test("Wait::Bool::"+str(n)+"::"+
102  (sf0 ? "std::function" : "funptr"),n,0,1,false), sf(sf0) {}
104  virtual bool solution(const Assignment& x) const {
105  int t=0;
106  for (int i=0; i<x.size(); i++)
107  t += x[i];
108  return t==2;
109  }
111  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
112  using namespace Gecode;
113  BoolVarArgs b(x.size());
114  for (int i=b.size(); i--; )
115  b[i]=channel(home,x[i]);
116  auto f = static_cast<std::function<void(Space&)>>
117  ([](Space& home) { c(home); });
118  if (b.size() > 1) {
119  if (sf)
120  Gecode::wait(home, b, f);
121  else
122  Gecode::wait(home, b, &c);
123  } else {
124  if (sf)
125  Gecode::wait(home, b[0], f);
126  else
127  Gecode::wait(home, b[0], &c);
128  }
129  }
131  static void c(Gecode::Space& _home) {
132  TestSpace& home = static_cast<TestSpace&>(_home);
133  int t=0;
134  for (int i=0; i<home.x.size(); i++)
135  t += home.x[i].val();
136  if (t!=2)
137  home.fail();
138  }
139  };
140 
142  class When : public Test {
143  protected:
145  bool sf;
146  public:
148  When(bool sf0)
149  : Test(std::string("When::")+
150  (sf0 ? "std::function" : "funptr"),1,0,1,false), sf(sf0) {}
152  virtual bool solution(const Assignment& x) const {
153  return x[0]==0;
154  }
156  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
157  using namespace Gecode;
158  if (sf) {
159  auto sft = static_cast<std::function<void(Space&)>>
160  ([](Space& home) { t(home); });
161  auto sfe = static_cast<std::function<void(Space&)>>
162  ([](Space& home) { e(home); });
163  when(home, channel(home, x[0]), sft, sfe);
164  } else {
165  when(home, channel(home, x[0]), &t, &e);
166  }
167  }
169  static void t(Gecode::Space& home) {
170  home.fail();
171  }
173  static void e(Gecode::Space& home) {
174  (void) home;
175  }
176  };
177 
178  IntWait iw1t(1,true), iw2t(2,true), iw3t(3,true), iw4t(4,true);
179  IntWait iw1f(1,false), iw2f(2,false), iw3f(3,false), iw4f(4,false);
180  BoolWait bw1t(1,true), bw2t(2,true), bw3t(3,true), bw4t(4,true);
181  BoolWait bw1f(1,false), bw2f(2,false), bw3f(3,false), bw4f(4,false);
182 
183 
184  When whent(true);
185  When whenf(false);
187 
188  }
189 
190 }}
191 
192 // STATISTICS: test-int
NodeType t
Type of node.
Definition: bool-expr.cpp:230
static std::string str(Gecode::IntPropLevel ipl)
Map integer propagation level to string.
Definition: int.hpp:208
virtual bool solution(const Assignment &x) const
Check whether x is solution.
Definition: exec.cpp:152
BoolWait bw2f(2, false)
Gecode::IntVarArray x
Variables to be tested.
Definition: int.hh:154
When whent(true)
bool sf
Whether to use std::function.
Definition: exec.cpp:97
BoolWait bw4f(4, false)
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: channel.cpp:41
Simple test for wait (Boolean variables)
Definition: exec.cpp:94
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:908
int size(void) const
Return number of variables.
Definition: int.hpp:46
bool sf
Whether to use std::function.
Definition: exec.cpp:52
Simple test for when.
Definition: exec.cpp:142
BoolWait bw3t(3, true)
IntWait iw1t(1, true)
Integer variable array.
Definition: int.hh:763
Definition: flatzinc.cpp:52
Space for executing tests.
Definition: int.hh:149
Computation spaces.
Definition: core.hpp:1701
IntWait(int n, bool sf0)
Create and register test.
Definition: exec.cpp:55
virtual bool solution(const Assignment &x) const
Check whether x is solution.
Definition: exec.cpp:104
void when(Home home, BoolVar x, std::function< void(Space &home)> t, IntPropLevel)
Execute t (then) when x is assigned one.
Definition: exec.cpp:79
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:234
Gecode::IntArgs i({1, 2, 3, 4})
IntWait iw3t(3, true)
void fail(void)
Fail space.
Definition: core.hpp:3957
struct Gecode::@593::NNF::@62::@63 b
For binary nodes (and, or, eqv)
void wait(Home home, FloatVar x, std::function< void(Space &home)> c)
Execute c when x becomes assigned.
Definition: exec.cpp:39
When(bool sf0)
Create and register test.
Definition: exec.cpp:148
BoolWait bw2t(2, true)
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post wait on x.
Definition: exec.cpp:111
BoolWait bw4t(4, true)
Simple test for wait (integer variables)
Definition: exec.cpp:49
static void e(Gecode::Space &home)
Else-function to be executed.
Definition: exec.cpp:173
IntWait iw4f(4, false)
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post when on x.
Definition: exec.cpp:156
Passing Boolean variables.
Definition: int.hh:712
IntWait iw2f(2, false)
When whenf(false)
General test support.
Definition: afc.cpp:39
static void t(Gecode::Space &home)
Then-function to be executed.
Definition: exec.cpp:169
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:249
BoolWait(int n, bool sf0)
Create and register test.
Definition: exec.cpp:100
Base class for assignments
Definition: int.hh:59
bool sf
Whether to use std::function.
Definition: exec.cpp:145
IntWait iw4t(4, true)
IntWait iw1f(1, false)
BoolWait bw1t(1, true)
Gecode toplevel namespace
virtual bool solution(const Assignment &x) const
Check whether x is solution.
Definition: exec.cpp:59
IntWait iw2t(2, true)
BoolWait bw3f(3, false)
IntWait iw3f(3, false)
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post wait on x.
Definition: exec.cpp:67
BoolWait bw1f(1, false)
static void c(Gecode::Space &_home)
Continuation to be executed.
Definition: exec.cpp:131
static void c(Gecode::Space &_home)
Continuation to be executed.
Definition: exec.cpp:84