Generated on Tue Feb 11 2025 17:33:26 for Gecode by doxygen 1.12.0

Class for minimizing float cost. More...

#include <minimodel.hh>

Public Member Functions

 FloatMinimizeSpace (FloatNum s=0.0)
 Constructor with step s.
 
 FloatMinimizeSpace (FloatMinimizeSpace &s)
 Constructor for cloning.
 
virtual void constrain (const Space &best)
 Member function constraining according to cost.
 
virtual FloatVar cost (void) const =0
 Return variable with current cost.
 
- Public Member Functions inherited from Gecode::Space
 Space (void)
 Default constructor.
 
 Space (Space &s)
 Constructor for cloning.
 
virtual ~Space (void)
 Destructor.
 
virtual Spacecopy (void)=0
 Copying member function.
 
virtual bool master (const MetaInfo &mi)
 Master configuration function for meta search engines.
 
virtual bool slave (const MetaInfo &mi)
 Slave configuration function for meta search engines.
 
SpaceStatus status (StatusStatistics &stat=unused_status)
 Query space status.
 
const Choicechoice (void)
 Create new choice for current brancher.
 
const Choicechoice (Archive &e) const
 Create new choice from e.
 
Spaceclone (CloneStatistics &stat=unused_clone) const
 Clone space.
 
void commit (const Choice &c, unsigned int a, CommitStatistics &stat=unused_commit)
 Commit choice c for alternative a.
 
void trycommit (const Choice &c, unsigned int a, CommitStatistics &stat=unused_commit)
 If possible, commit choice c for alternative a.
 
NGLngl (const Choice &c, unsigned int a)
 Create no-good literal for choice c and alternative a.
 
void print (const Choice &c, unsigned int a, std::ostream &o) const
 Print branch for choice c and alternative a.
 
void notice (Actor &a, ActorProperty p, bool duplicate=false)
 Notice actor property.
 
void ignore (Actor &a, ActorProperty p, bool duplicate=false)
 Ignore actor property.
 
ExecStatus ES_SUBSUMED (Propagator &p)
 
ExecStatus ES_SUBSUMED_DISPOSED (Propagator &p, size_t s)
 Propagator p is subsumed
 
ExecStatus ES_FIX_PARTIAL (Propagator &p, const ModEventDelta &med)
 Propagator p has computed partial fixpoint
 
ExecStatus ES_NOFIX_PARTIAL (Propagator &p, const ModEventDelta &med)
 Propagator p has not computed partial fixpoint
 
template<class A >
ExecStatus ES_FIX_DISPOSE (Council< A > &c, A &a)
 Advisor a must be disposed
 
template<class A >
ExecStatus ES_NOFIX_DISPOSE (Council< A > &c, A &a)
 Advisor a must be disposed and its propagator must be run
 
template<class A >
ExecStatus ES_NOFIX_DISPOSE_FORCE (Council< A > &c, A &a)
 Advisor a must be disposed and its propagator must be forcefully rescheduled
 
void fail (void)
 Fail space.
 
bool failed (void) const
 Check whether space is failed.
 
bool stable (void) const
 Return if space is stable (at fixpoint or failed)
 
Home operator() (Propagator &p)
 Return a home for this space with the information that p is being rewritten.
 
Home operator() (PropagatorGroup pg)
 Return a home for this space with propagator group information pg.
 
Home operator() (BrancherGroup bg)
 Return a home for this space with brancher group information bg.
 
template<class T >
T * alloc (long unsigned int n)
 Allocate block of n objects of type T from space heap.
 
template<class T >
T * alloc (long int n)
 Allocate block of n objects of type T from space heap.
 
template<class T >
T * alloc (unsigned int n)
 Allocate block of n objects of type T from space heap.
 
template<class T >
T * alloc (int n)
 Allocate block of n objects of type T from space heap.
 
template<class T >
void free (T *b, long unsigned int n)
 Delete n objects allocated from space heap starting at b.
 
template<class T >
void free (T *b, long int n)
 Delete n objects allocated from space heap starting at b.
 
template<class T >
void free (T *b, unsigned int n)
 Delete n objects allocated from space heap starting at b.
 
template<class T >
void free (T *b, int n)
 Delete n objects allocated from space heap starting at b.
 
template<class T >
T * realloc (T *b, long unsigned int n, long unsigned int m)
 Reallocate block of n objects starting at b to m objects of type T from the space heap.
 
template<class T >
T * realloc (T *b, long int n, long int m)
 Reallocate block of n objects starting at b to m objects of type T from the space heap.
 
template<class T >
T * realloc (T *b, unsigned int n, unsigned int m)
 Reallocate block of n objects starting at b to m objects of type T from the space heap.
 
template<class T >
T * realloc (T *b, int n, int m)
 Reallocate block of n objects starting at b to m objects of type T from the space heap.
 
template<class T >
T ** realloc (T **b, long unsigned int n, long unsigned int m)
 Reallocate block of n pointers starting at b to m objects of type T* from the space heap.
 
template<class T >
T ** realloc (T **b, long int n, long int m)
 Reallocate block of n pointers starting at b to m objects of type T* from the space heap.
 
template<class T >
T ** realloc (T **b, unsigned int n, unsigned int m)
 Reallocate block of n pointers starting at b to m objects of type T* from the space heap.
 
template<class T >
T ** realloc (T **b, int n, int m)
 Reallocate block of n pointers starting at b to m objects of type T* from the space heap.
 
void * ralloc (size_t s)
 Allocate memory on space heap.
 
void rfree (void *p, size_t s)
 Free memory previously allocated with alloc (might be reused later)
 
void * rrealloc (void *b, size_t n, size_t m)
 Reallocate memory block starting at b from size n to size s.
 
template<size_t >
void * fl_alloc (void)
 Allocate from freelist-managed memory.
 
template<size_t >
void fl_dispose (FreeList *f, FreeList *l)
 Return freelist-managed memory to freelist.
 
template<class T >
T & construct (void)
 Construction routines.
 
template<class T , typename A1 >
T & construct (A1 const &a1)
 Constructs a single object of type T from space heap using a unary constructor.
 
template<class T , typename A1 , typename A2 >
T & construct (A1 const &a1, A2 const &a2)
 Constructs a single object of type T from space heap using a binary constructor.
 
template<class T , typename A1 , typename A2 , typename A3 >
T & construct (A1 const &a1, A2 const &a2, A3 const &a3)
 Constructs a single object of type T from space heap using a ternary constructor.
 
template<class T , typename A1 , typename A2 , typename A3 , typename A4 >
T & construct (A1 const &a1, A2 const &a2, A3 const &a3, A4 const &a4)
 Constructs a single object of type T from space heap using a quaternary constructor.
 
template<class T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 >
T & construct (A1 const &a1, A2 const &a2, A3 const &a3, A4 const &a4, A5 const &a5)
 Constructs a single object of type T from space heap using a quinary constructor.
 
void afc_decay (double d)
 Set AFC decay factor to d
 
double afc_decay (void) const
 Return AFC decay factor.
 
void afc_unshare (void)
 Unshare AFC information for all propagators.
 

Protected Attributes

FloatNum step
 Step by which a next solution has to have lower cost.
 

Additional Inherited Members

- Static Public Member Functions inherited from Gecode::HeapAllocated
static void * operator new (size_t s)
 Memory management.
 
static void operator delete (void *p)
 Free memory allocated from heap.
 
- Public Attributes inherited from Gecode::Space

Detailed Description

Class for minimizing float cost.

The class supports using a step value step that will make sure that better solutions must be better by at least the value of step.

Definition at line 2446 of file minimodel.hh.

Constructor & Destructor Documentation

◆ FloatMinimizeSpace() [1/2]

Gecode::FloatMinimizeSpace::FloatMinimizeSpace ( FloatNum s = 0.0)
inline

Constructor with step s.

Definition at line 71 of file optimize.hpp.

◆ FloatMinimizeSpace() [2/2]

Gecode::FloatMinimizeSpace::FloatMinimizeSpace ( FloatMinimizeSpace & s)
inline

Constructor for cloning.

Definition at line 75 of file optimize.hpp.

Member Function Documentation

◆ constrain()

void Gecode::FloatMinimizeSpace::constrain ( const Space & best)
virtual

Member function constraining according to cost.

Reimplemented from Gecode::Space.

Definition at line 87 of file optimize.cpp.

◆ cost()

virtual FloatVar Gecode::FloatMinimizeSpace::cost ( void ) const
pure virtual

Return variable with current cost.

Member Data Documentation

◆ step

FloatNum Gecode::FloatMinimizeSpace::step
protected

Step by which a next solution has to have lower cost.

Definition at line 2449 of file minimodel.hh.


The documentation for this class was generated from the following files: