Scippy

SCIP

Solving Constraint Integer Programs

src

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.h.

#include "scip/scip.h"

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPvardataCreateBinpacking (SCIP scip, SCIP_VARDATA vardata, int consids, int nconss)

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

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

Definition at line 142 of file vardata_binpacking.c.

Referenced by createInitialColumns(), and SCIP_DECL_PRICERREDCOST().

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 103 of file vardata_binpacking.c.

References vardataCreate().

Referenced by createInitialColumns(), and SCIP_DECL_PRICERREDCOST().

int* SCIPvardataGetConsids ( SCIP_VARDATA * vardata )

returns sorted constraint id array

Parameters

vardata variable data

Definition at line 124 of file vardata_binpacking.c.

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

int SCIPvardataGetNConsids ( SCIP_VARDATA * vardata )

get number of constraints

Parameters

vardata variable data

Definition at line 116 of file vardata_binpacking.c.

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

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

prints vardata to file stream

Parameters

scip	SCIP data structure
vardata	variable data
file	the text file to store the information into

Definition at line 175 of file vardata_binpacking.c.

References SCIP_VarData::nconsids, and SCIPprobdataGetIds().

Referenced by consdataCheck().