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mm-rel.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, 2008
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
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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
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33
34#include "test/int.hh"
35
36#include <gecode/minimodel.hh>
37
38namespace Test { namespace Int {
39
41 namespace MiniModel {
42
49 class IntLex : public Test {
50 protected:
53 public:
56 : Test("MiniModel::Lex::Int::"+str(irt0),6,-2,2), irt(irt0) {}
58 virtual bool solution(const Assignment& x) const {
59 int n=x.size() >> 1;
60 for (int i=0; i<n; i++)
61 if (x[i] != x[n+i])
62 return cmp(x[i],irt,x[n+i]);
63 return ((irt == Gecode::IRT_LQ) || (irt == Gecode::IRT_GQ) ||
64 (irt == Gecode::IRT_EQ));
66 return false;
67 }
69 virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
70 using namespace Gecode;
71 int n=x.size() >> 1;
72 IntVarArgs y(n); IntVarArgs z(n);
73 for (int i=0; i<n; i++) {
74 y[i]=x[i]; z[i]=x[n+i];
75 }
76 lex(home, y, irt, z);
77 }
78 };
79
81 class BoolLex : public Test {
82 protected:
85 public:
88 : Test("MiniModel::Lex::Bool::"+str(irt0),10,0,1), irt(irt0) {}
90 virtual bool solution(const Assignment& x) const {
91 int n=x.size() >> 1;
92 for (int i=0; i<n; i++)
93 if (x[i] != x[n+i])
94 return cmp(x[i],irt,x[n+i]);
95 return ((irt == Gecode::IRT_LQ) || (irt == Gecode::IRT_GQ) ||
96 (irt == Gecode::IRT_EQ));
98 return false;
99 }
101 virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
102 using namespace Gecode;
103 int n=x.size() >> 1;
104 BoolVarArgs y(n); BoolVarArgs z(n);
105 for (int i=0; i<n; i++) {
106 y[i]=channel(home,x[i]); z[i]=channel(home,x[n+i]);
107 }
108 lex(home, y, irt, z);
109 }
110 };
111
113 class Create {
114 public:
116 Create(void) {
117 using namespace Gecode;
118 for (IntRelTypes irts; irts(); ++irts) {
119 (void) new IntLex(irts.irt());
120 (void) new BoolLex(irts.irt());
121 }
122 }
123 };
124
127
128 }
129
130}}
131
132// STATISTICS: test-minimodel
int n
Number of negative literals for node type.
Node * x
Pointer to corresponding Boolean expression node.
Passing Boolean variables.
Definition int.hh:712
Passing integer variables.
Definition int.hh:656
Integer variable array.
Definition int.hh:763
Computation spaces.
Definition core.hpp:1742
Base class for assignments
Definition int.hh:59
Iterator for integer relation types.
Definition int.hh:368
Test for relation between arrays of Boolean variables
Definition mm-rel.cpp:81
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition mm-rel.cpp:101
Gecode::IntRelType irt
Integer relation type to propagate.
Definition mm-rel.cpp:84
BoolLex(Gecode::IntRelType irt0)
Create and register test.
Definition mm-rel.cpp:87
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition mm-rel.cpp:90
Help class to create and register tests.
Definition mm-rel.cpp:113
Create(void)
Perform creation and registration.
Definition mm-rel.cpp:116
Test for relation between arrays of integer variables
Definition mm-rel.cpp:49
IntLex(Gecode::IntRelType irt0)
Create and register test.
Definition mm-rel.cpp:55
Gecode::IntRelType irt
Integer relation type to propagate.
Definition mm-rel.cpp:52
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition mm-rel.cpp:58
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition mm-rel.cpp:69
static std::string str(Gecode::IntPropLevel ipl)
Map integer propagation level to string.
Definition int.hpp:209
static bool cmp(T x, Gecode::IntRelType r, T y)
Compare x and y with respect to r.
Definition int.hpp:285
IntRelType
Relation types for integers.
Definition int.hh:925
@ IRT_EQ
Equality ( )
Definition int.hh:926
@ IRT_GQ
Greater or equal ( )
Definition int.hh:930
@ IRT_LQ
Less or equal ( )
Definition int.hh:928
Gecode toplevel namespace
General test support.
Definition afc.cpp:39
#define GECODE_NEVER
Assert that this command is never executed.
Definition macros.hpp:56