Solving Constraint Integer Programs

Detailed Description

Constraint handler for "or" constraints, \(r = x_1 \vee x_2 \vee \dots \vee x_n\).

Tobias Achterberg
Stefan Heinz
Michael Winkler

Definition in file cons_or.h.

#include "scip/def.h"
#include "scip/type_cons.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
#include "scip/type_var.h"

Go to the source code of this file.


SCIP_RETCODE SCIPincludeConshdlrOr (SCIP *scip)
OR Constraints

This constraint handler deals with OR constraint. These are constraint of the form:

\[ r = x_1 \vee x_2 \vee \dots \vee x_n \]

where \(x_i\) is a binary variable for all \(i\). Hence, \(r\) is also of binary type. The variable \(r\) is called resultant and the \(x\)'s operators.

SCIP_RETCODE SCIPcreateConsOr (SCIP *scip, SCIP_CONS **cons, const char *name, SCIP_VAR *resvar, int nvars, SCIP_VAR **vars, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_RETCODE SCIPcreateConsBasicOr (SCIP *scip, SCIP_CONS **cons, const char *name, SCIP_VAR *resvar, int nvars, SCIP_VAR **vars)
int SCIPgetNVarsOr (SCIP *scip, SCIP_CONS *cons)
SCIP_VAR ** SCIPgetVarsOr (SCIP *scip, SCIP_CONS *cons)
SCIP_VARSCIPgetResultantOr (SCIP *scip, SCIP_CONS *cons)