objbenders.h File Reference

Detailed Description

C++ wrapper for Benders' decomposition.

Author

Stephen J. Maher

Definition in file objbenders.h.

#include <cassert>
#include <cstring>
#include "scip/scip.h"
#include "objscip/objcloneable.h"

Go to the source code of this file.

Data Structures
class	scip::ObjBenders
	C++ wrapper for Benders' decomposition plugins. More...

Namespaces
	scip

Functions
SCIP_RETCODE	SCIPincludeObjBenders (SCIP *scip, scip::ObjBenders *objbenders, SCIP_Bool deleteobject)
scip::ObjBenders *	SCIPfindObjBenders (SCIP *scip, const char *name)
scip::ObjBenders *	SCIPgetObjBenders (SCIP *scip, SCIP_BENDERS *benders)

Function Documentation

SCIPincludeObjBenders()

SCIP_RETCODE SCIPincludeObjBenders	(	SCIP *	scip,
		scip::ObjBenders *	objbenders,
		SCIP_Bool	deleteobject
	)

creates the Benders' decomposition for the given Benders' decomposition object and includes it in SCIP

The method should be called in one of the following ways:

1. The user is resposible of deleting the object: SCIP_CALL( SCIPcreate(&scip) ); ... MyBenders* mybenders = new MyBenders(...); SCIP_CALL( SCIPincludeObjBenders(scip, &mybenders, FALSE) ); ... SCIP_CALL( SCIPfree(&scip) ); delete mybenders; // delete benders AFTER SCIPfree() !
2. The object pointer is passed to SCIP and deleted by SCIP in the SCIPfree() call: SCIP_CALL( SCIPcreate(&scip) ); ... SCIP_CALL( SCIPincludeObjBenders(scip, new MyBenders(...), TRUE) ); ... SCIP_CALL( SCIPfree(&scip) ); // destructor of MyBenders is called here

creates the Benders' decomposition for the given Benders' decomposition object and includes it in SCIP

Parameters

scip	SCIP data structure
objbenders	Benders' decomposition object
deleteobject	should the Benders' decomposition object be deleted when benders is freed?

Definition at line 335 of file objbenders.cpp.

References NULL, scip::ObjBenders::scip_, SCIP_CALL, scip::ObjBenders::scip_cutlp_, scip::ObjBenders::scip_cutpseudo_, scip::ObjBenders::scip_cutrelax_, scip::ObjBenders::scip_desc_, scip::ObjBenders::scip_name_, SCIP_OKAY, scip::ObjBenders::scip_priority_, scip::ObjBenders::scip_shareauxvars_, and SCIPincludeBenders().

Referenced by SCIP_DECL_BENDERSCOPY(), and scip::ObjBenders::SCIP_DECL_BENDERSFREESUB().

SCIPfindObjBenders()

scip::ObjBenders* SCIPfindObjBenders	(	SCIP *	scip,
		const char *	name
	)

returns the benders object of the given name, or 0 if not existing

Parameters

scip	SCIP data structure
name	name of Benders' decomposition

Definition at line 364 of file objbenders.cpp.

References NULL, SCIPbendersGetData(), and SCIPfindBenders().

Referenced by scip::ObjBenders::SCIP_DECL_BENDERSFREESUB().

SCIPgetObjBenders()

scip::ObjBenders* SCIPgetObjBenders	(	SCIP *	scip,
		SCIP_BENDERS *	benders
	)

returns the benders object for the given constraint handler

returns the benders object for the given Benders' decomposition

Parameters

scip	SCIP data structure
benders	Benders' decomposition

Definition at line 383 of file objbenders.cpp.

References NULL, and SCIPbendersGetData().

Referenced by SCIP_DECL_BENDERSCUTCOPY(), and scip::ObjBenders::SCIP_DECL_BENDERSFREESUB().