133 lines
4.1 KiB
C++
Executable File
133 lines
4.1 KiB
C++
Executable File
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christopher Mears <Chris.Mears@monash.edu>
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*
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* Contributing authors:
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* Christian Schulte <schulte@gecode.org>
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* Guido Tack <tack@gecode.org>
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*
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* Copyright:
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* Christopher Mears, 2011
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* Christian Schulte, 2011
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* Guido Tack, 2011
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "test/set.hh"
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using namespace Gecode;
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namespace Test { namespace Set {
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/// %Tests for value precedence constraints
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namespace Precede {
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static IntSet ds(-1,3);
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/// %Test for single value precedence constraint
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class Single : public SetTest {
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private:
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/// The values for precedence
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int s, t;
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/// Check if \a i is a member of set \a x
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bool in(int i, int x) const {
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CountableSetRanges xr(ds,x);
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Iter::Ranges::Singleton ir(i,i);
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return Iter::Ranges::subset(ir,xr);
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}
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public:
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/// Create and register test
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Single(int s0, int t0)
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: SetTest("Precede::Single::"+str(s0)+"<"+str(t0),4,ds,false),
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s(s0), t(t0) {}
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/// %Test whether \a x is solution
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virtual bool solution(const SetAssignment& x) const {
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int n = x.size();
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for (int i = 0 ; i < n ; i++) {
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if (!in(s,x[i]) && in(t,x[i]))
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return false;
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if (in(s,x[i]) && !in(t,x[i]))
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return true;
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}
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return true;
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}
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/// Post constraint on \a x
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virtual void post(Gecode::Space& home, Gecode::SetVarArray& x,
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Gecode::IntVarArray&) {
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Gecode::precede(home, x, s, t);
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}
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};
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/// %Test for multiple value precedence constraint
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class Multi : public SetTest {
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private:
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/// The values for precedence
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Gecode::IntArgs c;
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/// Check if \a i is a member of set \a x
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bool in(int i, int x) const {
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CountableSetRanges xr(ds,x);
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Iter::Ranges::Singleton ir(i,i);
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return Iter::Ranges::subset(ir,xr);
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}
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public:
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/// Create and register test
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Multi(const Gecode::IntArgs& c0)
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: SetTest("Precede::Multi::"+str(c0),4,ds,false), c(c0) {}
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/// %Test whether \a x is solution
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virtual bool solution(const SetAssignment& x) const {
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for (int j=0; j<c.size()-1; j++)
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for (int i=0; i<x.size(); i++) {
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if (!in(c[j],x[i]) && in(c[j+1],x[i]))
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return false;
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if (in(c[j],x[i]) && !in(c[j+1],x[i]))
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break;
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}
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return true;
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}
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/// Post constraint on \a x
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virtual void post(Gecode::Space& home, Gecode::SetVarArray& x,
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Gecode::IntVarArray&) {
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Gecode::precede(home, x, c);
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}
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};
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Single _a(2, 3);
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Single _b(0, 3);
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Multi _c(Gecode::IntArgs({1,2,3}));
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Multi _d(Gecode::IntArgs({3,2,1}));
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Multi _e(Gecode::IntArgs({4,2,3,1}));
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}
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}}
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// STATISTICS: test-set
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