Detailed Description

Variable data containing the ids of constraints in which the variable appears.

Author: Timo Berthold; Stefan Heinz

This file implements the handling of the variable data which is attached to each file. See SCIP_VarData and Pricing new variables.

Definition in file vardata_binpacking.c.

#include "probdata_binpacking.h"
#include "vardata_binpacking.h"

Go to the source code of this file.

Functions
Local methods
static SCIP_RETCODE	vardataCreate (SCIP scip, SCIP_VARDATA vardata, int consids, int nconsids)

static SCIP_RETCODE	vardataDelete (SCIP scip, SCIP_VARDATA *vardata)

Callback methods
static	SCIP_DECL_VARDELTRANS (vardataDelTrans)

Interface methods
SCIP_RETCODE	SCIPvardataCreateBinpacking (SCIP scip, SCIP_VARDATA vardata, int consids, int nconsids)

int	SCIPvardataGetNConsids (SCIP_VARDATA *vardata)

int *	SCIPvardataGetConsids (SCIP_VARDATA *vardata)

SCIP_RETCODE	SCIPcreateVarBinpacking (SCIP scip, SCIP_VAR var, const char name, SCIP_Real obj, SCIP_Bool initial, SCIP_Bool removable, SCIP_VARDATA *vardata)

void	SCIPvardataPrint (SCIP scip, SCIP_VARDATA vardata, FILE *file)

Function Documentation

◆ vardataCreate()

static SCIP_RETCODE vardataCreate	(	SCIP *	scip,
		SCIP_VARDATA **	vardata,
		int *	consids,
		int	nconsids
	)

static

create a vardata

Parameters

scip	SCIP data structure
vardata	pointer to vardata
consids	array of constraints ids
nconsids	number of constraints

Definition at line 56 of file vardata_binpacking.c.

References SCIP_CALL, SCIP_OKAY, SCIPallocBlockMemory, SCIPduplicateBlockMemoryArray, and SCIPsortInt().

Referenced by SCIPvardataCreateBinpacking().

◆ vardataDelete()

static SCIP_RETCODE vardataDelete	(	SCIP *	scip,
		SCIP_VARDATA **	vardata
	)

static

frees user data of variable

Parameters

scip	SCIP data structure
vardata	vardata to delete

Definition at line 75 of file vardata_binpacking.c.

References SCIP_OKAY, SCIPfreeBlockMemory, and SCIPfreeBlockMemoryArray.

Referenced by SCIP_DECL_VARDELTRANS().

◆ SCIP_DECL_VARDELTRANS()

static SCIP_DECL_VARDELTRANS ( vardataDelTrans )

static

frees user data of transformed variable (called when the transformed variable is freed)

Definition at line 96 of file vardata_binpacking.c.

References SCIP_CALL, SCIP_OKAY, and vardataDelete().

◆ SCIPvardataCreateBinpacking()

SCIP_RETCODE SCIPvardataCreateBinpacking	(	SCIP *	scip,
		SCIP_VARDATA **	vardata,
		int *	consids,
		int	nconsids
	)

create variable data

Parameters

scip	SCIP data structure
vardata	pointer to vardata
consids	array of constraints ids
nconsids	number of constraints

Definition at line 112 of file vardata_binpacking.c.

References SCIP_CALL, SCIP_OKAY, and vardataCreate().

Referenced by createInitialColumns(), and doPricing().

◆ SCIPvardataGetNConsids()

int SCIPvardataGetNConsids ( SCIP_VARDATA * vardata )

get number of constraints

Parameters

vardata variable data

Definition at line 125 of file vardata_binpacking.c.

Referenced by addFixedVarsConss(), checkVariable(), consdataCheck(), and SCIP_DECL_BRANCHEXECLP().

◆ SCIPvardataGetConsids()

int * SCIPvardataGetConsids ( SCIP_VARDATA * vardata )

returns sorted constraint id array

Parameters

vardata variable data

Definition at line 133 of file vardata_binpacking.c.

Referenced by addFixedVarsConss(), checkVariable(), consdataCheck(), and SCIP_DECL_BRANCHEXECLP().

◆ SCIPcreateVarBinpacking()

SCIP_RETCODE SCIPcreateVarBinpacking	(	SCIP *	scip,
		SCIP_VAR **	var,
		const char *	name,
		SCIP_Real	obj,
		SCIP_Bool	initial,
		SCIP_Bool	removable,
		SCIP_VARDATA *	vardata
	)

creates variable

Parameters

scip	SCIP data structure
var	pointer to variable object
name	name of variable, or NULL for automatic name creation
obj	objective function value
initial	should var's column be present in the initial root LP?
removable	is var's column removable from the LP (due to aging or cleanup)?
vardata	user data for this specific variable