SCIP
Solving Constraint Integer Programs
cons_logicor.h File Reference
Detailed Description
Constraint handler for logicor constraints \(1^T x \ge 1\) (equivalent to set covering, but algorithms are suited for depth first search).
Definition in file cons_logicor.h.
#include "scip/def.h"#include "scip/type_cons.h"#include "scip/type_lp.h"#include "scip/type_retcode.h"#include "scip/type_scip.h"#include "scip/type_var.h"Go to the source code of this file.
Functions | |
| SCIP_RETCODE | SCIPincludeConshdlrLogicor (SCIP *scip) |
Logicor Constraints | |
This constraint handler handles a special type of linear constraints, namely logic or constraints. These are equivalent to set covering constraints, but are handled by special algorithms which are better suited for depth first search. For a set of binary variables \(x_i, i=1,\dots,n\), a logic or constraint has the form \[ \sum_{i=1}^n x_i \ge 1. \] | |
| SCIP_RETCODE | SCIPcreateConsLogicor (SCIP *scip, SCIP_CONS **cons, const char *name, 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 | SCIPcreateConsBasicLogicor (SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars) |
| SCIP_RETCODE | SCIPaddCoefLogicor (SCIP *scip, SCIP_CONS *cons, SCIP_VAR *var) |
| int | SCIPgetNVarsLogicor (SCIP *scip, SCIP_CONS *cons) |
| SCIP_VAR ** | SCIPgetVarsLogicor (SCIP *scip, SCIP_CONS *cons) |
| SCIP_Real | SCIPgetDualsolLogicor (SCIP *scip, SCIP_CONS *cons) |
| SCIP_Real | SCIPgetDualfarkasLogicor (SCIP *scip, SCIP_CONS *cons) |
| SCIP_ROW * | SCIPgetRowLogicor (SCIP *scip, SCIP_CONS *cons) |
| SCIP_RETCODE | SCIPcleanupConssLogicor (SCIP *scip, SCIP_Bool onlychecked, int *naddconss, int *ndelconss, int *nchgcoefs) |