type_conflict.h
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25 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 39 typedef struct SCIP_Conflicthdlr SCIP_CONFLICTHDLR; /**< conflict handler to process conflict sets */ 78 /** solving process initialization method of conflict handler (called when branch and bound process is about to begin) 80 * This method is called when the presolving was finished and the branch and bound process is about to begin. 87 #define SCIP_DECL_CONFLICTINITSOL(x) SCIP_RETCODE x (SCIP* scip, SCIP_CONFLICTHDLR* conflicthdlr) 89 /** solving process deinitialization method of conflict handler (called before branch and bound process data is freed) 98 #define SCIP_DECL_CONFLICTEXITSOL(x) SCIP_RETCODE x (SCIP* scip, SCIP_CONFLICTHDLR* conflicthdlr) 103 * The conflict handler may update its data accordingly and create a constraint out of the conflict set. 104 * If the parameter "resolved" is set, the conflict handler should not create a constraint, because 106 * The bounds in the conflict set lead to a conflict (i.e. an infeasibility) when all enforced at the same time. 107 * Thus, a feasible conflict constraint must demand that at least one of the variables in the conflict 108 * set violates its corresponding bound, i.e., fulfills the negation of the bound change in the conflict set. 109 * For continuous variables, the negation has to be defined in a relaxed way: if, e.g., the bound in the conflict 112 * buffer, that may be modified at any time by SCIP. The user must copy the needed information from the 114 * (S)he should not keep a pointer to the array or pointers to the single bdchginfos in the array, because these 121 * - validnode : node at which the conflict constraint is valid (should be passed to SCIPaddConsNode()) 126 * - local : is the conflict set only valid locally, i.e., should the constraint be created as local constraint? 134 * - SCIP_DIDNOTFIND : the conflict handler could not create a constraint out of the conflict set 137 #define SCIP_DECL_CONFLICTEXEC(x) SCIP_RETCODE x (SCIP* scip, SCIP_CONFLICTHDLR* conflicthdlr, SCIP_NODE* node, \ 139 SCIP_Bool separate, SCIP_Bool local, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool resolved, SCIP_RESULT* result) type definitions for return codes for SCIP methods struct SCIP_ConflicthdlrData SCIP_CONFLICTHDLRDATA Definition: type_conflict.h:40 type definitions for problem variables result codes for SCIP callback methods common defines and data types used in all packages of SCIP |