Detailed Description

C++ wrapper for constraint handlers.

This class defines the interface for constraint handlers implemented in C++. Note that there are pure virtual functions (these have to be implemented). These functions are: scip_trans(), scip_enfolp(), scip_enfops(), scip_check(), and scip_lock().

Definition at line 47 of file objconshdlr.h.

#include <objconshdlr.h>

Public Member Functions
	ObjConshdlr (SCIP scip, const char name, const char *desc, int sepapriority, int enfopriority, int checkpriority, int sepafreq, int propfreq, int eagerfreq, int maxprerounds, SCIP_Bool delaysepa, SCIP_Bool delayprop, SCIP_Bool needscons, unsigned int proptiming, unsigned int presoltiming)

virtual	~ObjConshdlr ()

virtual	SCIP_DECL_CONSFREE (scip_free)

virtual	SCIP_DECL_CONSINIT (scip_init)

virtual	SCIP_DECL_CONSEXIT (scip_exit)

virtual	SCIP_DECL_CONSINITPRE (scip_initpre)

virtual	SCIP_DECL_CONSEXITPRE (scip_exitpre)

virtual	SCIP_DECL_CONSINITSOL (scip_initsol)

virtual	SCIP_DECL_CONSEXITSOL (scip_exitsol)

virtual	SCIP_DECL_CONSDELETE (scip_delete)

virtual	SCIP_DECL_CONSTRANS (scip_trans)=0

virtual	SCIP_DECL_CONSINITLP (scip_initlp)

virtual	SCIP_DECL_CONSSEPALP (scip_sepalp)

virtual	SCIP_DECL_CONSSEPASOL (scip_sepasol)

virtual	SCIP_DECL_CONSENFOLP (scip_enfolp)=0

virtual	SCIP_DECL_CONSENFOPS (scip_enfops)=0

virtual	SCIP_DECL_CONSCHECK (scip_check)=0

virtual	SCIP_DECL_CONSPROP (scip_prop)

virtual	SCIP_DECL_CONSPRESOL (scip_presol)

virtual	SCIP_DECL_CONSRESPROP (scip_resprop)

virtual	SCIP_DECL_CONSLOCK (scip_lock)=0

virtual	SCIP_DECL_CONSACTIVE (scip_active)

virtual	SCIP_DECL_CONSDEACTIVE (scip_deactive)

virtual	SCIP_DECL_CONSENABLE (scip_enable)

virtual	SCIP_DECL_CONSDISABLE (scip_disable)

virtual	SCIP_DECL_CONSDELVARS (scip_delvars)

virtual	SCIP_DECL_CONSPRINT (scip_print)

virtual	SCIP_DECL_CONSCOPY (scip_copy)

virtual	SCIP_DECL_CONSPARSE (scip_parse)

virtual	SCIP_DECL_CONSGETVARS (scip_getvars)

virtual	SCIP_DECL_CONSGETNVARS (scip_getnvars)

virtual	SCIP_DECL_CONSGETDIVEBDCHGS (scip_getdivebdchgs)

Public Member Functions inherited from scip::ObjProbCloneable
virtual	~ObjProbCloneable ()

virtual	SCIP_DECL_OBJPROBCLONE (ObjProbCloneable *clone)

virtual	SCIP_DECL_OBJPROBISCLONEABLE (iscloneable)

Data Fields
SCIP *	scip_

char *	scip_name_

char *	scip_desc_

const int	scip_sepapriority_

const int	scip_enfopriority_

const int	scip_checkpriority_

const int	scip_sepafreq_

const int	scip_propfreq_

const int	scip_eagerfreq_

const int	scip_maxprerounds_

const SCIP_Bool	scip_delaysepa_

const SCIP_Bool	scip_delayprop_

const SCIP_Bool	scip_needscons_

const unsigned int	scip_proptiming_

const unsigned int	scip_presoltiming_

Constructor & Destructor Documentation

scip::ObjConshdlr::ObjConshdlr	(	SCIP *	scip,
		const char *	name,
		const char *	desc,
		int	sepapriority,
		int	enfopriority,
		int	checkpriority,
		int	sepafreq,
		int	propfreq,
		int	eagerfreq,
		int	maxprerounds,
		SCIP_Bool	delaysepa,
		SCIP_Bool	delayprop,
		SCIP_Bool	needscons,
		unsigned int	proptiming,
		unsigned int	presoltiming
	)

inline

default constructor

Parameters

scip	SCIP data structure
name	name of constraint handler
desc	description of constraint handler
sepapriority	priority of the constraint handler for separation
enfopriority	priority of the constraint handler for constraint enforcing
checkpriority	priority of the constraint handler for checking infeasibility (and propagation)
sepafreq	frequency for separating cuts; zero means to separate only in the root node
propfreq	frequency for propagating domains; zero means only preprocessing propagation
eagerfreq	frequency for using all instead of only the useful constraints in separation, propagation and enforcement, -1 for no eager evaluations, 0 for first only
maxprerounds	maximal number of presolving rounds the constraint handler participates in (-1: no limit)
delaysepa	should separation method be delayed, if other separators found cuts?
delayprop	should propagation method be delayed, if other propagators found reductions?
needscons	should the constraint handler be skipped, if no constraints are available?
proptiming	positions in the node solving loop where propagation method of constraint handlers should be executed
presoltiming	timing mask of the constraint handler's presolving method

Definition at line 98 of file objconshdlr.h.

References scip_, SCIP_CALL_ABORT, scip_desc_, scip_name_, and SCIPduplicateMemoryArray.

virtual scip::ObjConshdlr::~ObjConshdlr ( )

inlinevirtual

destructor

Definition at line 138 of file objconshdlr.h.

References scip_, scip_desc_, scip_name_, and SCIPfreeMemoryArray.

Member Function Documentation

virtual scip::ObjConshdlr::SCIP_DECL_CONSFREE ( scip_free )

inlinevirtual

destructor of constraint handler to free user data (called when SCIP is exiting)

See Also: SCIP_DECL_CONSFREE(x) in type_cons.h

Definition at line 150 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSINIT ( scip_init )

inlinevirtual

initialization method of constraint handler (called after problem has been transformed)

See Also: SCIP_DECL_CONSINIT(x) in type_cons.h

Definition at line 159 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSEXIT ( scip_exit )

inlinevirtual

deinitialization method of constraint handler (called before transformed problem is freed)

See Also: SCIP_DECL_CONSEXIT(x) in type_cons.h

Definition at line 168 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSINITPRE ( scip_initpre )

inlinevirtual

presolving initialization method of constraint handler (called when presolving is about to begin)

See Also: SCIP_DECL_CONSINITPRE(x) in type_cons.h

Definition at line 177 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSEXITPRE ( scip_exitpre )

inlinevirtual

presolving deinitialization method of constraint handler (called after presolving has been finished)

See Also: SCIP_DECL_CONSEXITPRE(x) in type_cons.h

Definition at line 186 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSINITSOL ( scip_initsol )

inlinevirtual

solving process initialization method of constraint handler (called when branch and bound process is about to begin)

See Also: SCIP_DECL_CONSINITSOL(x) in type_cons.h

Definition at line 195 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSEXITSOL ( scip_exitsol )

inlinevirtual

solving process deinitialization method of constraint handler (called before branch and bound process data is freed)

See Also: SCIP_DECL_CONSEXITSOL(x) in type_cons.h

Definition at line 204 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSDELETE ( scip_delete )

inlinevirtual

frees specific constraint data

See Also: SCIP_DECL_CONSDELETE(x) in type_cons.h

Definition at line 213 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSTRANS ( scip_trans )

pure virtual

transforms constraint data into data belonging to the transformed problem

See Also: SCIP_DECL_CONSTRANS(x) in type_cons.h

virtual scip::ObjConshdlr::SCIP_DECL_CONSINITLP ( scip_initlp )

inlinevirtual

LP initialization method of constraint handler (called before the initial LP relaxation at a node is solved)

See Also: SCIP_DECL_CONSINITLP(x) in type_cons.h

Definition at line 228 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSSEPALP ( scip_sepalp )

inlinevirtual

separation method of constraint handler for LP solution

See Also: SCIP_DECL_CONSSEPALP(x) in type_cons.h

Definition at line 237 of file objconshdlr.h.

References NULL, SCIP_DIDNOTRUN, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSSEPASOL ( scip_sepasol )

inlinevirtual

separation method of constraint handler for arbitrary primal solution

See Also: SCIP_DECL_CONSSEPASOL(x) in type_cons.h

Definition at line 248 of file objconshdlr.h.

References NULL, SCIP_DIDNOTRUN, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSENFOLP ( scip_enfolp )

pure virtual

constraint enforcing method of constraint handler for LP solutions

See Also: SCIP_DECL_CONSENFOLP(x) in type_cons.h

virtual scip::ObjConshdlr::SCIP_DECL_CONSENFOPS ( scip_enfops )

pure virtual

constraint enforcing method of constraint handler for pseudo solutions

See Also: SCIP_DECL_CONSENFOPS(x) in type_cons.h

virtual scip::ObjConshdlr::SCIP_DECL_CONSCHECK ( scip_check )

pure virtual

feasibility check method of constraint handler for primal solutions

See Also: SCIP_DECL_CONSCHECK(x) in type_cons.h

virtual scip::ObjConshdlr::SCIP_DECL_CONSPROP ( scip_prop )

inlinevirtual

domain propagation method of constraint handler

See Also: SCIP_DECL_CONSPROP(x) in type_cons.h

Definition at line 277 of file objconshdlr.h.

References NULL, SCIP_DIDNOTRUN, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSPRESOL ( scip_presol )

inlinevirtual

presolving method of constraint handler

See Also: SCIP_DECL_CONSPRESOL(x) in type_cons.h

Definition at line 288 of file objconshdlr.h.

References NULL, SCIP_DIDNOTRUN, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSRESPROP ( scip_resprop )

inlinevirtual

propagation conflict resolving method of constraint handler

See Also: SCIP_DECL_CONSRESPROP(x) in type_cons.h

Definition at line 299 of file objconshdlr.h.

References NULL, SCIP_DIDNOTFIND, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSLOCK ( scip_lock )

pure virtual

variable rounding lock method of constraint handler

See Also: SCIP_DECL_CONSLOCK(x) in type_cons.h

virtual scip::ObjConshdlr::SCIP_DECL_CONSACTIVE ( scip_active )

inlinevirtual

constraint activation notification method of constraint handler

See Also: SCIP_DECL_CONSACTIVE(x) in type_cons.h

Definition at line 316 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSDEACTIVE ( scip_deactive )

inlinevirtual

constraint deactivation notification method of constraint handler

See Also: SCIP_DECL_CONSDEACTIVE(x) in type_cons.h

Definition at line 325 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSENABLE ( scip_enable )

inlinevirtual

constraint enabling notification method of constraint handler

See Also: SCIP_DECL_CONSENABLE(x) in type_cons.h

Definition at line 334 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSDISABLE ( scip_disable )

inlinevirtual

constraint disabling notification method of constraint handler

See Also: SCIP_DECL_CONSDISABLE(x) in type_cons.h

Definition at line 343 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSDELVARS ( scip_delvars )

inlinevirtual

variable deletion method of constraint handler

See Also: SCIP_DECL_CONSDELVARS(x) in type_cons.h

Definition at line 352 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSPRINT ( scip_print )

inlinevirtual

constraint display method of constraint handler

See Also: SCIP_DECL_CONSPRINT(x) in type_cons.h

Definition at line 361 of file objconshdlr.h.

References NULL, SCIP_OKAY, and SCIPconshdlrGetName().

virtual scip::ObjConshdlr::SCIP_DECL_CONSCOPY ( scip_copy )

inlinevirtual

constraint copying method of constraint handler

See Also: SCIP_DECL_CONSCOPY(x) in type_cons.h

Definition at line 374 of file objconshdlr.h.

References FALSE, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSPARSE ( scip_parse )

inlinevirtual

constraint parsing method of constraint handler

See Also: SCIP_DECL_CONSPARSE(x) in type_cons.h

Definition at line 384 of file objconshdlr.h.

References SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSGETVARS ( scip_getvars )

inlinevirtual

constraint method of constraint handler which returns the variables (if possible)

See Also: SCIP_DECL_CONSGETVARS(x) in type_cons.h

Definition at line 393 of file objconshdlr.h.

References FALSE, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSGETNVARS ( scip_getnvars )

inlinevirtual

constraint method of constraint handler which returns the number of variables (if possible)

See Also: SCIP_DECL_CONSGETNVARS(x) in type_cons.h

Definition at line 405 of file objconshdlr.h.

References FALSE, and SCIP_OKAY.

virtual scip::ObjConshdlr::SCIP_DECL_CONSGETDIVEBDCHGS ( scip_getdivebdchgs )

inlinevirtual

constraint handler method to suggest dive bound changes during the generic diving algorithm

See Also: SCIP_DECL_CONSGETDIVEBDCHGS(x) in type_cons.h

Definition at line 418 of file objconshdlr.h.

References FALSE, and SCIP_OKAY.

Field Documentation

SCIP* scip::ObjConshdlr::scip_

SCIP data structure

Definition at line 53 of file objconshdlr.h.

Referenced by ObjConshdlr(), and ~ObjConshdlr().

char* scip::ObjConshdlr::scip_name_

name of the constraint handler

Definition at line 56 of file objconshdlr.h.

Referenced by ObjConshdlr(), and ~ObjConshdlr().

char* scip::ObjConshdlr::scip_desc_

description of the constraint handler

Definition at line 59 of file objconshdlr.h.

Referenced by ObjConshdlr(), and ~ObjConshdlr().

const int scip::ObjConshdlr::scip_sepapriority_

default separation priority of the constraint handler

Definition at line 62 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_enfopriority_

default enforcing priority of the constraint handler

Definition at line 65 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_checkpriority_

default checking priority of the constraint handler

Definition at line 68 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_sepafreq_

default separation frequency of the constraint handler

Definition at line 71 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_propfreq_

default propagation frequency of the constraint handler

Definition at line 74 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_eagerfreq_

default frequency of the constraint handler for eager evaluations in separation, propagation and enforcement

Definition at line 77 of file objconshdlr.h.

const int scip::ObjConshdlr::scip_maxprerounds_

maximal number of presolving rounds the constraint handler participates in (-1: no limit)

Definition at line 80 of file objconshdlr.h.

const SCIP_Bool scip::ObjConshdlr::scip_delaysepa_

should separation method be delayed, if other separators found cuts?

Definition at line 83 of file objconshdlr.h.

const SCIP_Bool scip::ObjConshdlr::scip_delayprop_

should propagation method be delayed, if other propagators found reductions?

Definition at line 86 of file objconshdlr.h.

const SCIP_Bool scip::ObjConshdlr::scip_needscons_

should the constraint handler be skipped, if no constraints are available?

Definition at line 89 of file objconshdlr.h.

const unsigned int scip::ObjConshdlr::scip_proptiming_

positions in the node solving loop where propagation method of constraint handler should be executed timing mask of the constraint handler's presolving method

Definition at line 92 of file objconshdlr.h.

const unsigned int scip::ObjConshdlr::scip_presoltiming_

Definition at line 95 of file objconshdlr.h.

SCIP

Detailed Description

Public Member Functions

Data Fields

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation