Detailed Description
methods to create a problem that SCIP should solve
This module summarizes the main methods needed to create a problem for SCIP, and access its most important members:
- Declaring, adding, accessing, and changing variables of the problem
- Declaring, adding, accessing, and changing constraints of the problem
- Creating, adding, accessing, changing, and checking of solutions to the problem
- Note
- These core methods are not sufficient to create constraints of a certain type that is provided by the default plugins of SCIP. An example would be the creation of a linear constraint for which the methods provided by the linear constraint handler must be used. Such methods are provided by the default plugins of SCIP and can be found in the Plugin API of SCIP.
public methods to query linear constraint classification statistics
Modules | |
SCIP | |
methods to manipulate a SCIP object | |
Global Problem | |
methods to create, read and modify a global problem together with its callbacks | |
Problem Variables | |
public methods for problem variables | |
Problem Constraints | |
Public methods for constraints. | |
Primal Solution | |
methods to create and change primal solutions of SCIP | |
Problem Copies | |
methods to copy problems between a source and a target SCIP | |
Functions | |
SCIP_RETCODE | SCIPlinConsStatsCreate (SCIP *scip, SCIP_LINCONSSTATS **linconsstats) |
void | SCIPlinConsStatsFree (SCIP *scip, SCIP_LINCONSSTATS **linconsstats) |
void | SCIPlinConsStatsReset (SCIP_LINCONSSTATS *linconsstats) |
int | SCIPlinConsStatsGetTypeCount (SCIP_LINCONSSTATS *linconsstats, SCIP_LINCONSTYPE linconstype) |
int | SCIPlinConsStatsGetSum (SCIP_LINCONSSTATS *linconsstats) |
void | SCIPlinConsStatsIncTypeCount (SCIP_LINCONSSTATS *linconsstats, SCIP_LINCONSTYPE linconstype, int increment) |
void | SCIPprintLinConsStats (SCIP *scip, FILE *file, SCIP_LINCONSSTATS *linconsstats) |
Function Documentation
◆ SCIPlinConsStatsCreate()
SCIP_RETCODE SCIPlinConsStatsCreate | ( | SCIP * | scip, |
SCIP_LINCONSSTATS ** | linconsstats | ||
) |
create linear constraint statistics
- Parameters
-
scip scip data structure linconsstats pointer to linear constraint classification statistics
Definition at line 7922 of file cons.c.
References NULL, SCIP_CALL, SCIP_OKAY, SCIPallocBlockMemory(), and SCIPlinConsStatsFree().
Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPconshdlrsResetPropagationStatus().
◆ SCIPlinConsStatsFree()
void SCIPlinConsStatsFree | ( | SCIP * | scip, |
SCIP_LINCONSSTATS ** | linconsstats | ||
) |
free linear constraint statistics
- Parameters
-
scip scip data structure linconsstats pointer to linear constraint classification statistics
Definition at line 7935 of file cons.c.
References NULL, SCIPfreeBlockMemory, and SCIPlinConsStatsReset().
Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPlinConsStatsCreate().
◆ SCIPlinConsStatsReset()
void SCIPlinConsStatsReset | ( | SCIP_LINCONSSTATS * | linconsstats | ) |
resets linear constraint statistics
- Parameters
-
linconsstats linear constraint classification statistics
Definition at line 7947 of file cons.c.
References BMSclearMemoryArray, SCIP_NLINCONSTYPES, and SCIPlinConsStatsGetTypeCount().
Referenced by SCIPclassifyConstraintTypesLinear(), and SCIPlinConsStatsFree().
◆ SCIPlinConsStatsGetTypeCount()
int SCIPlinConsStatsGetTypeCount | ( | SCIP_LINCONSSTATS * | linconsstats, |
SCIP_LINCONSTYPE | linconstype | ||
) |
returns the number of occurrences of a specific type of linear constraint
- Parameters
-
linconsstats linear constraint classification statistics linconstype linear constraint type
Definition at line 7956 of file cons.c.
References SCIP_LinConsStats::counter, NULL, SCIP_NLINCONSTYPES, and SCIPlinConsStatsGetSum().
Referenced by SCIPlinConsStatsReset(), and SCIPprintLinConsStats().
◆ SCIPlinConsStatsGetSum()
int SCIPlinConsStatsGetSum | ( | SCIP_LINCONSSTATS * | linconsstats | ) |
returns the total number of classified constraints
- Parameters
-
linconsstats linear constraint classification statistics
Definition at line 7969 of file cons.c.
References NULL, SCIPlinConsStatsIncTypeCount(), and SCIP_LinConsStats::sum.
Referenced by SCIPlinConsStatsGetTypeCount(), and SCIPprintLinConsStats().
◆ SCIPlinConsStatsIncTypeCount()
void SCIPlinConsStatsIncTypeCount | ( | SCIP_LINCONSSTATS * | linconsstats, |
SCIP_LINCONSTYPE | linconstype, | ||
int | increment | ||
) |
increases the number of occurrences of a specific type of linear constraint
- Parameters
-
linconsstats linear constraint classification statistics linconstype linear constraint type increment positive increment
Definition at line 7979 of file cons.c.
References SCIP_LinConsStats::counter, NULL, SCIP_NLINCONSTYPES, SCIPprintLinConsStats(), and SCIP_LinConsStats::sum.
Referenced by SCIPclassifyConstraintTypesLinear(), and SCIPlinConsStatsGetSum().
◆ SCIPprintLinConsStats()
void SCIPprintLinConsStats | ( | SCIP * | scip, |
FILE * | file, | ||
SCIP_LINCONSSTATS * | linconsstats | ||
) |
print linear constraint classification statistics
- Parameters
-
scip scip data structure file file handle or NULL to print to standard out linconsstats linear constraint classification statistics
Definition at line 7995 of file cons.c.
References NULL, SCIP_LINCONSTYPE_AGGREGATION, SCIP_LINCONSTYPE_BINPACKING, SCIP_LINCONSTYPE_CARDINALITY, SCIP_LINCONSTYPE_EMPTY, SCIP_LINCONSTYPE_EQKNAPSACK, SCIP_LINCONSTYPE_FREE, SCIP_LINCONSTYPE_GENERAL, SCIP_LINCONSTYPE_INTKNAPSACK, SCIP_LINCONSTYPE_INVKNAPSACK, SCIP_LINCONSTYPE_KNAPSACK, SCIP_LINCONSTYPE_MIXEDBINARY, SCIP_LINCONSTYPE_PRECEDENCE, SCIP_LINCONSTYPE_SETCOVERING, SCIP_LINCONSTYPE_SETPACKING, SCIP_LINCONSTYPE_SETPARTITION, SCIP_LINCONSTYPE_SINGLETON, SCIP_LINCONSTYPE_VARBOUND, SCIPconsGetName(), SCIPinfoMessage(), SCIPlinConsStatsGetSum(), and SCIPlinConsStatsGetTypeCount().
Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPlinConsStatsIncTypeCount().