scip::ObjPresol Class Reference

Detailed Description

C++ wrapper for presolvers.

This class defines the interface for presolvers implemented in C++. Note that there is a pure virtual function (this function has to be implemented). This function is: scip_exec().

• Instructions for implementing a presolver
• List of available presolvers
• Corresponding C interface

Definition at line 43 of file objpresol.h.

#include <objpresol.h>

Public Member Functions
	ObjPresol (SCIP *scip, const char *name, const char *desc, int priority, int maxrounds, SCIP_Bool delay)
virtual	~ObjPresol ()
virtual	SCIP_DECL_PRESOLFREE (scip_free)
virtual	SCIP_DECL_PRESOLINIT (scip_init)
virtual	SCIP_DECL_PRESOLEXIT (scip_exit)
virtual	SCIP_DECL_PRESOLINITPRE (scip_initpre)
virtual	SCIP_DECL_PRESOLEXITPRE (scip_exitpre)
virtual	SCIP_DECL_PRESOLEXEC (scip_exec)=0
Public Member Functions inherited from scip::ObjCloneable
virtual	~ObjCloneable ()
virtual	SCIP_DECL_OBJCLONEABLECLONE (ObjCloneable *clone)
virtual	SCIP_DECL_OBJCLONEABLEISCLONEABLE (iscloneable)

Data Fields
SCIP *	scip_
char *	scip_name_
char *	scip_desc_
const int	scip_priority_
const int	scip_maxrounds_
const SCIP_Bool	scip_delay_

Constructor & Destructor Documentation

scip::ObjPresol::ObjPresol ( SCIP *  scip, const char *  name, const char *  desc, int  priority, int  maxrounds, SCIP_Bool  delay  )

inline

default constructor

Parameters

scip	SCIP data structure
name	name of presolver
desc	description of presolver
priority	priority of the presolver
maxrounds	maximal number of presolving rounds the presolver participates in (-1: no limit)
delay	should presolver be delayed, if other presolvers found reductions?

Definition at line 67 of file objpresol.h.

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

virtual scip::ObjPresol::~ObjPresol ( )

inlinevirtual

destructor

Definition at line 88 of file objpresol.h.

References scip_, scip_desc_, scip_name_, and SCIPfreeMemoryArray.

Member Function Documentation

virtual scip::ObjPresol::SCIP_DECL_PRESOLFREE ( scip_free  )

inlinevirtual

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

See Also

SCIP_DECL_PRESOLFREE(x) in type_prop.h

Definition at line 100 of file objpresol.h.

References SCIP_OKAY.

virtual scip::ObjPresol::SCIP_DECL_PRESOLINIT ( scip_init  )

inlinevirtual

initialization method of presolver (called after problem was transformed)

See Also

SCIP_DECL_PRESOLINIT(x) in type_prop.h

Definition at line 109 of file objpresol.h.

References SCIP_OKAY.

virtual scip::ObjPresol::SCIP_DECL_PRESOLEXIT ( scip_exit  )

inlinevirtual

deinitialization method of presolver (called before transformed problem is freed)

See Also

SCIP_DECL_PRESOLEXIT(x) in type_prop.h

Definition at line 118 of file objpresol.h.

References SCIP_OKAY.

virtual scip::ObjPresol::SCIP_DECL_PRESOLINITPRE ( scip_initpre  )

inlinevirtual

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

See Also

SCIP_DECL_PRESOLINITPRE(x) in type_prop.h

Definition at line 127 of file objpresol.h.

References SCIP_OKAY.

virtual scip::ObjPresol::SCIP_DECL_PRESOLEXITPRE ( scip_exitpre  )

inlinevirtual

presolving deinitialization method of presolver (called after presolving has been finished)

See Also

SCIP_DECL_PRESOLEXITPRE(x) in type_prop.h

Definition at line 136 of file objpresol.h.

References SCIP_OKAY.

virtual scip::ObjPresol::SCIP_DECL_PRESOLEXEC ( scip_exec  )

pure virtual

execution method of presolver

See Also

SCIP_DECL_PRESOLEXEC(x) in type_prop.h

Field Documentation

SCIP* scip::ObjPresol::scip_

SCIP data structure

Definition at line 49 of file objpresol.h.

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

char* scip::ObjPresol::scip_name_

name of the presolver

Definition at line 52 of file objpresol.h.

Referenced by ObjPresol(), SCIPincludeObjPresol(), and ~ObjPresol().

char* scip::ObjPresol::scip_desc_

description of the presolver

Definition at line 55 of file objpresol.h.

Referenced by ObjPresol(), SCIPincludeObjPresol(), and ~ObjPresol().

const int scip::ObjPresol::scip_priority_

default priority of the presolver

Definition at line 58 of file objpresol.h.

Referenced by SCIPincludeObjPresol().

const int scip::ObjPresol::scip_maxrounds_

default maximal number of presolving rounds the presolver participates in (-1: no limit)

Definition at line 61 of file objpresol.h.

Referenced by SCIPincludeObjPresol().

const SCIP_Bool scip::ObjPresol::scip_delay_

should presolver be delayed, if other presolvers found reductions?

Definition at line 64 of file objpresol.h.

Referenced by SCIPincludeObjPresol().