49 typedef typename View::VarType
Var;
69 int*
ties,
int& n) = 0;
80 int*
ties,
int& n) = 0;
83 int*
ties,
int n) = 0;
99 static void*
operator new(
size_t s,
Space& home);
101 static void operator delete(
void* p,
Space& home);
103 static void operator delete(
void* p);
205 template<
class Choose,
class Merit>
211 typedef typename Merit::Val
Val;
254 template<
class Choose,
class Merit>
294 template<
class Merit>
314 template<
class Merit>
334 template<
class Merit>
354 template<
class Merit>
414 return home.ralloc(s);
442 int j=0;
ties[j++]=s;
443 for (
int i=s+1; i<
x.size(); i++)
444 if (!
x[i].assigned())
454 int j=0;
ties[j++]=s;
455 for (
int i=s+1; i<
x.size(); i++)
456 if (!
x[i].assigned() && f(home,
x[i],i))
491 for (
int i=s+1; i<
x.size(); i++)
492 if (!
x[i].assigned()) {
505 for (
int i=s+1; i<
x.size(); i++)
506 if (!
x[i].assigned() && f(home,
x[i],i)) {
529 ties[0] =
ties[
static_cast<int>(
r(
static_cast<unsigned int>(n)))];
535 return ties[
static_cast<int>(
r(
static_cast<unsigned int>(n)))];
556 template<
class Choose,
class Merit>
561 template<
class Choose,
class Merit>
567 template<
class Choose,
class Merit>
572 Val b_m =
m(home,
x[s],s);
574 for (
int i=s+1; i<
x.size(); i++)
575 if (!
x[i].assigned()) {
576 Val mxi =
m(home,
x[i],i);
584 template<
class Choose,
class Merit>
590 Val b_m =
m(home,
x[s],s);
592 for (
int i=s+1; i<
x.size(); i++)
593 if (!
x[i].assigned() && f(home,
x[i],i)) {
594 Val mxi =
m(home,
x[i],i);
602 template<
class Choose,
class Merit>
607 Val b =
m(home,
x[s],s);
608 int j=0;
ties[j++]=s;
609 for (
int i=s+1; i<
x.size(); i++)
610 if (!
x[i].assigned()) {
611 Val mxi =
m(home,
x[i],i);
614 j=0;
ties[j++]=i; b=mxi;
615 }
else if (mxi == b) {
625 template<
class Choose,
class Merit>
631 Val b =
m(home,
x[s],s);
632 int j=0;
ties[j++]=s;
633 for (
int i=s+1; i<
x.size(); i++)
634 if (!
x[i].assigned() && f(home,
x[i],i)) {
635 Val mxi =
m(home,
x[i],i);
638 j=0;
ties[j++]=i; b=mxi;
639 }
else if (mxi == b) {
649 template<
class Choose,
class Merit>
657 for (
int i=1; i<n; i++) {
662 }
else if (mxi == b) {
672 template<
class Choose,
class Merit>
678 for (
int i=1; i<n; i++) {
681 b_i =
ties[i]; b_m = mxi;
687 template<
class Choose,
class Merit>
693 template<
class Choose,
class Merit>
700 template<
class Choose,
class Merit>
709 template<
class Choose,
class Merit>
716 template<
class Choose,
class Merit>
721 Val w =
m(home,
x[s],s);
723 for (
int i=s+1; i<
x.size(); i++)
724 if (!
x[i].assigned()) {
725 Val mxi =
m(home,
x[i],i);
733 double l =
tbl()(home,
static_cast<double>(w),
static_cast<double>(b));
735 if (!
c(l,
static_cast<double>(w))) {
737 for (
int i=s; i<
x.size(); i++)
738 if (!
x[i].assigned())
743 if (
c(l,
static_cast<double>(b)))
744 l =
static_cast<double>(b);
747 for (
int i=s; i<
x.size(); i++)
748 if (!
x[i].assigned() && !
c(l,
static_cast<double>(
m(home,
x[i],i))))
756 template<
class Choose,
class Merit>
762 assert(f(home,
x[s],s));
763 Val w =
m(home,
x[s],s);
765 for (
int i=s+1; i<
x.size(); i++)
766 if (!
x[i].assigned() && f(home,
x[i],i)) {
767 Val mxi =
m(home,
x[i],i);
775 double l =
tbl()(home,
static_cast<double>(w),
static_cast<double>(b));
777 if (!
c(l,
static_cast<double>(w))) {
779 for (
int i=s; i<
x.size(); i++)
780 if (!
x[i].assigned() && f(home,
x[i],i))
785 if (
c(l,
static_cast<double>(b)))
786 l =
static_cast<double>(b);
789 for (
int i=s; i<
x.size(); i++)
790 if (!
x[i].assigned() && f(home,
x[i],i) &&
791 !
c(l,
static_cast<double>(
m(home,
x[i],i))))
799 template<
class Choose,
class Merit>
806 for (
int i=1; i<n; i++) {
815 double l =
tbl()(home,
static_cast<double>(w),
static_cast<double>(b));
818 if (
c(l,
static_cast<double>(w))) {
820 if (
c(l,
static_cast<double>(b)))
821 l =
static_cast<double>(b);
824 for (
int i=0; i<n; i++)
825 if (!
c(l,
static_cast<double>(
m(home,
x[
ties[i]],
ties[i]))))
832 template<
class Choose,
class Merit>
837 template<
class Choose,
class Merit>
845 template<
class Merit>
850 template<
class Merit>
855 template<
class Merit>
862 template<
class Merit>
867 template<
class Merit>
872 template<
class Merit>
880 template<
class Merit>
885 template<
class Merit>
890 template<
class Merit>
898 template<
class Merit>
903 template<
class Merit>
908 template<
class Merit>
Class storing a branch filter function.
Class withot a branch filter function.
Choose views with larger merit values.
bool operator()(Val a, Val b) const
Return true if a is better than b.
Choose views with smaller merit values.
bool operator()(Val a, Val b) const
Return true if a is better than b.
Exception: invalid function
Class for sharing data between spaces.
Variable branching information.
virtual bool notice(void) const
Whether dispose must always be called (that is, notice is needed)
ViewSelChoose< Choose, Merit >::View View
ViewSelChooseTbl(Space &home, ViewSelChooseTbl< Choose, Merit > &vs)
Constructor for copying during cloning.
ViewSelChoose< Choose, Merit >::Var Var
ViewSelChooseTbl(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
ViewSelChoose< Choose, Merit >::Val Val
virtual void brk(Space &home, ViewArray< View > &x, int *ties, int &n)
Break ties in x and update to new ties.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n)
Select ties from x starting from s.
SharedData< BranchTbl > tbl
virtual void dispose(Space &home)
Delete view selection.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n, BrancherFilter< View > &f)
Select ties from x starting from s.
ViewSelChoose(Space &home, ViewSelChoose< Choose, Merit > &vs)
Constructor for copying during cloning.
virtual void brk(Space &home, ViewArray< View > &x, int *ties, int &n)
Break ties in x and update to new ties.
ViewSelChoose(Space &home, const VarBranch< Var > &vb)
Constructor for creation.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n, BrancherFilter< View > &f)
Select ties from x starting from s.
virtual bool notice(void) const
Whether dispose must always be called (that is, notice is needed)
Merit::Val Val
Type of merit.
ViewSel< typenameMerit::View >::Var Var
virtual void dispose(Space &home)
Delete view selection.
virtual int select(Space &home, ViewArray< View > &x, int *ties, int n)
Select a view from x considering views with positions in ties.
virtual int select(Space &home, ViewArray< View > &x, int s, BrancherFilter< View > &f)
Select a view from x starting from s and return its position.
ViewSel< typenameMerit::View >::View View
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n)
Select ties from x starting from s.
virtual int select(Space &home, ViewArray< View > &x, int s)
Select a view from x starting from s and return its position.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
ViewSelMaxTbl(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
ViewSelMax(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
ViewSelMinTbl(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
ViewSelMin(Space &home, const VarBranch< Var > &vb)
Constructor for initialization.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n)
Select ties from x starting at s.
virtual void brk(Space &home, ViewArray< View > &x, int *ties, int &n)
Break ties in x and update to new ties.
virtual int select(Space &home, ViewArray< View > &x, int s)
Select a view from x starting at s and return its position.
ViewSelNone(Space &home, const VarBranch< Var > &vb)
Constructor for creation.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n)
Select ties from x starting from s.
Rnd r
The random number generator used.
virtual ViewSel< View > * copy(Space &home)
Create copy during cloning.
ViewSelRnd(Space &home, const VarBranch< Var > &vb)
Constructor for creation.
virtual int select(Space &home, ViewArray< View > &x, int s)
Select a view from x starting from s and return its position.
virtual void brk(Space &home, ViewArray< View > &x, int *ties, int &n)
Break ties in x and update to new ties.
Abstract class for view selection.
_View View
Define the view type.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n)=0
Select ties from x starting from s.
virtual ~ViewSel(void)
Unused destructor.
virtual void brk(Space &home, ViewArray< View > &x, int *ties, int &n)=0
Break ties in x and update to new ties.
ViewSel(Space &home, const VarBranch< Var > &vb)
Constructor for creation.
View::VarType Var
The corresponding variable type.
virtual int select(Space &home, ViewArray< View > &x, int s, BrancherFilter< View > &f)=0
Select a view from x starting from s and return its position.
virtual void dispose(Space &home)
Dispose view selection.
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n, BrancherNoFilter< View > &f)
Select ties from x starting from s.
virtual int select(Space &home, ViewArray< View > &x, int s, BrancherNoFilter< View > &f)
Select a view from x starting from s and return its position.
virtual ViewSel< View > * copy(Space &home)=0
Create copy during cloning.
virtual bool notice(void) const
Whether dispose must always be called (that is, notice is needed)
virtual void ties(Space &home, ViewArray< View > &x, int s, int *ties, int &n, BrancherFilter< View > &f)=0
Select ties from x starting from s.
virtual int select(Space &home, ViewArray< View > &x, int s)=0
Select a view from x starting from s and return its position.
virtual int select(Space &home, ViewArray< View > &x, int *ties, int n)=0
Select a view from x considering views with positions in ties.
ViewSel(Space &home, ViewSel< View > &vs)
Constructor for copying during cloning.
std::function< double(const Space &home, double w, double b)> BranchTbl
Tie-break limit function.
Gecode toplevel namespace
Post propagator for SetVar SetOpType SetVar SetRelType r
Post propagator for SetVar x
#define GECODE_NEVER
Assert that this command is never executed.
#define GECODE_VALID_FUNCTION(f)
Assert that a function is valid.