merit.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2012
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
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* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
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* permit persons to whom the Software is furnished to do so, subject to
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*
* The above copyright notice and this permission notice shall be
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*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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namespace Gecode { namespace Int { namespace Branch {
// Minimum merit
template<class View>
forceinline
MeritMin<View>::MeritMin
(Space& home, const VarBranch<MeritMin<View>::Var>& vb)
: MeritBase<View,int>(home,vb) {}
template<class View>
forceinline
MeritMin<View>::MeritMin(Space& home, MeritMin& m)
: MeritBase<View,int>(home,m) {}
template<class View>
forceinline int
MeritMin<View>::operator ()(const Space&, View x, int) {
return x.min();
}
// Maximum merit
template<class View>
forceinline
MeritMax<View>::MeritMax
(Space& home, const VarBranch<MeritMax<View>::Var>& vb)
: MeritBase<View,int>(home,vb) {}
template<class View>
forceinline
MeritMax<View>::MeritMax(Space& home, MeritMax& m)
: MeritBase<View,int>(home,m) {}
template<class View>
forceinline int
MeritMax<View>::operator ()(const Space&, View x, int) {
return x.max();
}
// Size merit
template<class View>
forceinline
MeritSize<View>::MeritSize
(Space& home, const VarBranch<MeritSize<View>::Var>& vb)
: MeritBase<View,unsigned int>(home,vb) {}
template<class View>
forceinline
MeritSize<View>::MeritSize(Space& home, MeritSize& m)
: MeritBase<View,unsigned int>(home,m) {}
template<class View>
forceinline unsigned int
MeritSize<View>::operator ()(const Space&, View x, int) {
return x.size();
}
// Degree over size merit
template<class View>
forceinline
MeritDegreeSize<View>::MeritDegreeSize
(Space& home, const VarBranch<MeritDegreeSize<View>::Var>& vb)
: MeritBase<View,double>(home,vb) {}
template<class View>
forceinline
MeritDegreeSize<View>::MeritDegreeSize(Space& home, MeritDegreeSize& m)
: MeritBase<View,double>(home,m) {}
template<class View>
forceinline double
MeritDegreeSize<View>::operator ()(const Space&, View x, int) {
return static_cast<double>(x.degree()) / static_cast<double>(x.size());
}
// AFC over size merit
template<class View>
forceinline
MeritAFCSize<View>::MeritAFCSize
(Space& home, const VarBranch<MeritAFCSize<View>::Var>& vb)
: MeritBase<View,double>(home,vb), afc(vb.afc()) {}
template<class View>
forceinline
MeritAFCSize<View>::MeritAFCSize(Space& home, MeritAFCSize& m)
: MeritBase<View,double>(home,m), afc(m.afc) {}
template<class View>
forceinline double
MeritAFCSize<View>::operator ()(const Space&, View x, int) {
return x.afc() / static_cast<double>(x.size());
}
template<class View>
forceinline bool
MeritAFCSize<View>::notice(void) const {
return false;
}
template<class View>
forceinline void
MeritAFCSize<View>::dispose(Space&) {
// Not needed
afc.~AFC();
}
// Action over size merit
template<class View>
forceinline
MeritActionSize<View>::MeritActionSize
(Space& home, const VarBranch<MeritActionSize<View>::Var>& vb)
: MeritBase<View,double>(home,vb), action(vb.action()) {}
template<class View>
forceinline
MeritActionSize<View>::MeritActionSize(Space& home, MeritActionSize& m)
: MeritBase<View,double>(home,m), action(m.action) {}
template<class View>
forceinline double
MeritActionSize<View>::operator ()(const Space&, View x, int i) {
return action[i] / static_cast<double>(x.size());
}
template<class View>
forceinline bool
MeritActionSize<View>::notice(void) const {
return true;
}
template<class View>
forceinline void
MeritActionSize<View>::dispose(Space&) {
action.~Action();
}
// CHB over size merit
template<class View>
forceinline
MeritCHBSize<View>::MeritCHBSize
(Space& home, const VarBranch<MeritCHBSize<View>::Var>& vb)
: MeritBase<View,double>(home,vb), chb(vb.chb()) {}
template<class View>
forceinline
MeritCHBSize<View>::MeritCHBSize(Space& home, MeritCHBSize& m)
: MeritBase<View,double>(home,m), chb(m.chb) {}
template<class View>
forceinline double
MeritCHBSize<View>::operator ()(const Space&, View x, int i) {
return chb[i] / static_cast<double>(x.size());
}
template<class View>
forceinline bool
MeritCHBSize<View>::notice(void) const {
return true;
}
template<class View>
forceinline void
MeritCHBSize<View>::dispose(Space&) {
chb.~CHB();
}
// Minimum regret merit
template<class View>
forceinline
MeritRegretMin<View>::MeritRegretMin
(Space& home, const VarBranch<MeritRegretMin<View>::Var>& vb)
: MeritBase<View,unsigned int>(home,vb) {}
template<class View>
forceinline
MeritRegretMin<View>::MeritRegretMin(Space& home, MeritRegretMin& m)
: MeritBase<View,unsigned int>(home,m) {}
template<class View>
forceinline unsigned int
MeritRegretMin<View>::operator ()(const Space&, View x, int) {
return x.regret_min();
}
// Maximum regret merit
template<class View>
forceinline
MeritRegretMax<View>::MeritRegretMax
(Space& home, const VarBranch<MeritRegretMax<View>::Var>& vb)
: MeritBase<View,unsigned int>(home,vb) {}
template<class View>
forceinline
MeritRegretMax<View>::MeritRegretMax(Space& home, MeritRegretMax& m)
: MeritBase<View,unsigned int>(home,m) {}
template<class View>
forceinline unsigned int
MeritRegretMax<View>::operator ()(const Space&, View x, int) {
return x.regret_max();
}
}}}
// STATISTICS: int-branch
Gecode::Int::Branch::MeritAFCSize::dispose
void dispose(Space &home)
Dispose view selection.
Definition merit.hpp:122
Gecode::Int::Branch::MeritAFCSize::afc
AFC afc
AFC information.
Definition branch.hh:145
Gecode::Int::Branch::MeritAFCSize::notice
bool notice(void) const
Whether dispose must always be called (that is, notice is needed).
Definition merit.hpp:117
Gecode::Int::Branch::MeritAFCSize::operator()
double operator()(const Space &home, View x, int i)
Return AFC over size as merit for view x at position i.
Definition merit.hpp:112
Gecode::Int::Branch::MeritAFCSize::MeritAFCSize
MeritAFCSize(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritActionSize::action
Action action
Action information.
Definition branch.hh:170
Gecode::Int::Branch::MeritActionSize::notice
bool notice(void) const
Whether dispose must always be called (that is, notice is needed).
Definition merit.hpp:144
Gecode::Int::Branch::MeritActionSize::MeritActionSize
MeritActionSize(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritActionSize::operator()
double operator()(const Space &home, View x, int i)
Return action over size as merit for view x at position i.
Definition merit.hpp:139
Gecode::Int::Branch::MeritActionSize::dispose
void dispose(Space &home)
Dispose view selection.
Definition merit.hpp:149
Gecode::Int::Branch::MeritCHBSize::dispose
void dispose(Space &home)
Dispose view selection.
Definition merit.hpp:175
Gecode::Int::Branch::MeritCHBSize::operator()
double operator()(const Space &home, View x, int i)
Return size over action as merit for view x at position i.
Definition merit.hpp:165
Gecode::Int::Branch::MeritCHBSize::notice
bool notice(void) const
Whether dispose must always be called (that is, notice is needed).
Definition merit.hpp:170
Gecode::Int::Branch::MeritCHBSize::chb
CHB chb
CHB information.
Definition branch.hh:195
Gecode::Int::Branch::MeritCHBSize::MeritCHBSize
MeritCHBSize(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritDegreeSize::operator()
double operator()(const Space &home, View x, int i)
Return degree over size as merit for view x at position i.
Definition merit.hpp:96
Gecode::Int::Branch::MeritDegreeSize::MeritDegreeSize
MeritDegreeSize(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritMax::MeritMax
MeritMax(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritMax::operator()
int operator()(const Space &home, View x, int i)
Return maximum as merit for view x at position i.
Definition merit.hpp:64
Gecode::Int::Branch::MeritMin::MeritMin
MeritMin(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritMin::operator()
int operator()(const Space &home, View x, int i)
Return minimum as merit for view x at position i.
Definition merit.hpp:48
Gecode::Int::Branch::MeritRegretMax::MeritRegretMax
MeritRegretMax(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritRegretMax::operator()
unsigned int operator()(const Space &home, View x, int i)
Return maximum regret as merit for view x at position i.
Definition merit.hpp:207
Gecode::Int::Branch::MeritRegretMin::MeritRegretMin
MeritRegretMin(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritRegretMin::operator()
unsigned int operator()(const Space &home, View x, int i)
Return minimum regret as merit for view x at position i.
Definition merit.hpp:191
Gecode::Int::Branch::MeritSize::MeritSize
MeritSize(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
Gecode::Int::Branch::MeritSize::operator()
unsigned int operator()(const Space &home, View x, int i)
Return size as merit for view x at position i.
Definition merit.hpp:80
Gecode::MeritBase
Base-class for merit class.
Definition merit.hpp:46
Gecode::MeritBase< View, int >::View
View View
Definition merit.hpp:49
Gecode::MeritBase< View, int >::Var
View::VarType Var
Definition merit.hpp:51
Gecode::MeritBase< View, int >::MeritBase
MeritBase(Space &home, const VarBranch< Var > &vb)
Definition merit.hpp:176
Gecode::Space
Computation spaces.
Definition core.hpp:1742
Gecode::View
Gecode::VarBranch
Variable branching information.
Definition var.hpp:55
Gecode::Int::Branch
Integer branchers.
Gecode::Int
Finite domain integers.
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187