/** constraint activation notification method of constraint handler */
static
SCIP_DECL_CONSACTIVE(consActiveSamediff)
{ /*lint --e{715}*/
SCIP_CONSDATA* consdata;
assert(scip != NULL);
assert(strcmp(SCIPconshdlrGetName(conshdlr), CONSHDLR_NAME) == 0);
assert(cons != NULL);
consdata = SCIPconsGetData(cons);
assert(consdata != NULL);
assert(consdata->npropagatedvars <= SCIPprobdataGetNVars(SCIPgetProbData(scip)));
SCIPdebugMessage("activate constraint <%s> at node <%"SCIP_LONGINT_FORMAT"> in depth <%d>: ",
SCIPconsGetName(cons), SCIPnodeGetNumber(consdata->node), SCIPnodeGetDepth(consdata->node));
SCIPdebug( consdataPrint(scip, consdata, NULL) );
if( consdata->npropagatedvars != SCIPprobdataGetNVars(SCIPgetProbData(scip)) )
{
SCIPdebugMessage("-> mark constraint to be repropagated\n");
consdata->propagated = FALSE;
SCIP_CALL( SCIPrepropagateNode(scip, consdata->node) );
}
return SCIP_OKAY;
}
/** adds a bound change on an original variable found by propagation in the original problem
* to the given origbranch constraint so that it will be transferred to the master problem */
SCIP_RETCODE GCGconsOrigbranchAddPropBoundChg(
SCIP* scip, /**< SCIP data structure */
SCIP_CONS* cons, /**< origbranch constraint to which the bound change is added */
SCIP_VAR* var, /**< variable on which the bound change was performed */
SCIP_BOUNDTYPE boundtype, /**< bound type of the bound change */
SCIP_Real newbound /**< new bound of the variable after the bound change */
)
{
SCIP_CONSDATA* consdata;
assert(scip != NULL);
assert(cons != NULL);
assert(var != NULL);
consdata = SCIPconsGetData(cons);
assert(consdata != NULL);
/* realloc the arrays, if needed */
if( consdata->npropbounds >= consdata->maxpropbounds )
{
consdata->maxpropbounds = consdata->npropbounds+5;
SCIP_CALL( SCIPreallocMemoryArray(scip, &(consdata->propvars), consdata->maxpropbounds) );
SCIP_CALL( SCIPreallocMemoryArray(scip, &(consdata->propboundtypes), consdata->maxpropbounds) );
SCIP_CALL( SCIPreallocMemoryArray(scip, &(consdata->propbounds), consdata->maxpropbounds) );
}
SCIPdebugMessage("Bound change stored at branch orig constraint: <%s>.\n", SCIPconsGetName(cons));
/* store the new bound change */
consdata->propvars[consdata->npropbounds] = var;
consdata->propboundtypes[consdata->npropbounds] = boundtype;
consdata->propbounds[consdata->npropbounds] = newbound;
consdata->npropbounds++;
/* mark the corresponding master node to be repropagated */
if( consdata->mastercons != NULL )
{
SCIP_CALL( SCIPrepropagateNode(GCGrelaxGetMasterprob(scip), GCGconsMasterbranchGetNode(consdata->mastercons)) );
}
return SCIP_OKAY;
}