/** creates the redcost propagator and includes it in SCIP */
SCIP_RETCODE SCIPincludePropRedcost(
SCIP* scip /**< SCIP data structure */
)
{
SCIP_PROPDATA* propdata;
SCIP_PROP* prop;
/* create redcost propagator data */
SCIP_CALL( SCIPallocMemory(scip, &propdata) );
/* include propagator */
SCIP_CALL( SCIPincludePropBasic(scip, &prop, PROP_NAME, PROP_DESC, PROP_PRIORITY, PROP_FREQ, PROP_DELAY, PROP_TIMING,
propExecRedcost, propdata) );
assert(prop != NULL);
/* set optional callbacks via setter functions */
SCIP_CALL( SCIPsetPropCopy(scip, prop, propCopyRedcost) );
SCIP_CALL( SCIPsetPropInitsol(scip, prop, propInitsolRedcost) );
SCIP_CALL( SCIPsetPropFree(scip, prop, propFreeRedcost) );
/* add redcost propagator parameters */
SCIP_CALL( SCIPaddBoolParam(scip,
"propagating/"PROP_NAME"/continuous",
"should reduced cost fixing be also applied to continuous variables?",
&propdata->continuous, FALSE, DEFAULT_CONTINUOUS, NULL, NULL) );
SCIP_CALL( SCIPaddBoolParam(scip,
"propagating/"PROP_NAME"/useimplics",
"should implications be used to strength the reduced cost for binary variables?",
&propdata->useimplics, FALSE, DEFAULT_USEIMPLICS, NULL, NULL) );
return SCIP_OKAY;
}
/** creates the xyz propagator and includes it in SCIP */
SCIP_RETCODE SCIPincludePropXyz(
SCIP* scip /**< SCIP data structure */
)
{
SCIP_PROPDATA* propdata;
SCIP_PROP* prop;
/* create xyz propagator data */
propdata = NULL;
/* TODO: (optional) create propagator specific data here */
prop = NULL;
/* include propagator */
#if 0
/* use SCIPincludeProp() if you want to set all callbacks explicitly and realize (by getting compiler errors) when
* new callbacks are added in future SCIP versions
*/
SCIP_CALL( SCIPincludeProp(scip, PROP_NAME, PROP_DESC, PROP_PRIORITY, PROP_FREQ, PROP_DELAY,
PROP_TIMING, PROP_PRESOL_PRIORITY, PROP_PRESOL_MAXROUNDS, PROP_PRESOL_DELAY,
propCopyXyz, propFreeXyz, propInitXyz, propExitXyz, propInitpreXyz, propExitpreXyz,
propInitsolXyz, propExitsolXyz, propPresolXyz, propExecXyz, propRespropXyz,
propdata) );
#else
/* use SCIPincludePropBasic() plus setter functions if you want to set callbacks one-by-one and your code should
* compile independent of new callbacks being added in future SCIP versions
*/
SCIP_CALL( SCIPincludePropBasic(scip, &prop, PROP_NAME, PROP_DESC, PROP_PRIORITY, PROP_FREQ, PROP_DELAY, PROP_TIMING,
propExecXyz, propdata) );
assert(prop != NULL);
/* set optional callbacks via setter functions */
SCIP_CALL( SCIPsetPropCopy(scip, prop, propCopyXyz) );
SCIP_CALL( SCIPsetPropFree(scip, prop, propFreeXyz) );
SCIP_CALL( SCIPsetPropInit(scip, prop, propInitXyz) );
SCIP_CALL( SCIPsetPropExit(scip, prop, propExitXyz) );
SCIP_CALL( SCIPsetPropInitsol(scip, prop, propInitsolXyz) );
SCIP_CALL( SCIPsetPropExitsol(scip, prop, propExitsolXyz) );
SCIP_CALL( SCIPsetPropInitpre(scip, prop, propInitpreXyz) );
SCIP_CALL( SCIPsetPropExitpre(scip, prop, propExitpreXyz) );
SCIP_CALL( SCIPsetPropPresol(scip, prop, propPresolXyz, PROP_PRESOL_PRIORITY, PROP_PRESOL_MAXROUNDS, PROP_PRESOL_DELAY) );
SCIP_CALL( SCIPsetPropResprop(scip, prop, propRespropXyz) );
#endif
/* add xyz propagator parameters */
/* TODO: (optional) add propagator specific parameters with SCIPaddTypeParam() here */
return SCIP_OKAY;
}
/** creates the dual fixing propagator and includes it in SCIP */
SCIP_RETCODE SCIPincludePropDualfix(
SCIP* scip /**< SCIP data structure */
)
{
SCIP_PROPDATA* propdata;
SCIP_PROP* prop;
/* create dualfix propagator data */
propdata = NULL;
/* include propagator */
SCIP_CALL( SCIPincludePropBasic(scip, &prop, PROP_NAME, PROP_DESC, PROP_PRIORITY, PROP_FREQ, PROP_DELAY, PROP_TIMING,
propExecDualfix, propdata) );
assert(prop != NULL);
SCIP_CALL( SCIPsetPropCopy(scip, prop, propCopyDualfix) );
SCIP_CALL( SCIPsetPropPresol(scip, prop, propPresolDualfix, PROP_PRESOL_PRIORITY, PROP_PRESOL_MAXROUNDS,
PROP_PRESOLTIMING) );
return SCIP_OKAY;
}