type_lp.h File Reference

Detailed Description

type definitions for LP management

Author

Tobias Achterberg

Definition in file type_lp.h.

Go to the source code of this file.

Typedefs
typedef enum SCIP_LPSolStat	SCIP_LPSOLSTAT
typedef enum SCIP_BoundType	SCIP_BOUNDTYPE
typedef enum SCIP_SideType	SCIP_SIDETYPE
typedef enum SCIP_RowOriginType	SCIP_ROWORIGINTYPE
typedef enum SCIP_LPAlgo	SCIP_LPALGO
typedef struct SCIP_ColSolVals	SCIP_COLSOLVALS
typedef struct SCIP_RowSolVals	SCIP_ROWSOLVALS
typedef struct SCIP_LpSolVals	SCIP_LPSOLVALS
typedef struct SCIP_Col	SCIP_COL
typedef struct SCIP_Row	SCIP_ROW
typedef struct SCIP_Lp	SCIP_LP

Enumerations
enum	SCIP_LPSolStat {   SCIP_LPSOLSTAT_NOTSOLVED = 0,   SCIP_LPSOLSTAT_OPTIMAL = 1,   SCIP_LPSOLSTAT_INFEASIBLE = 2,   SCIP_LPSOLSTAT_UNBOUNDEDRAY = 3,   SCIP_LPSOLSTAT_OBJLIMIT = 4,   SCIP_LPSOLSTAT_ITERLIMIT = 5,   SCIP_LPSOLSTAT_TIMELIMIT = 6,   SCIP_LPSOLSTAT_ERROR = 7 }
enum	SCIP_BoundType {   SCIP_BOUNDTYPE_LOWER = 0,   SCIP_BOUNDTYPE_UPPER = 1 }
enum	SCIP_SideType {   SCIP_SIDETYPE_LEFT = 0,   SCIP_SIDETYPE_RIGHT = 1 }
enum	SCIP_RowOriginType {   SCIP_ROWORIGINTYPE_UNSPEC = 0,   SCIP_ROWORIGINTYPE_CONS = 1,   SCIP_ROWORIGINTYPE_SEPA = 2 }
enum	SCIP_LPAlgo {   SCIP_LPALGO_PRIMALSIMPLEX = 0,   SCIP_LPALGO_DUALSIMPLEX = 1,   SCIP_LPALGO_BARRIER = 2,   SCIP_LPALGO_BARRIERCROSSOVER = 3 }

Typedef Documentation

typedef enum SCIP_LPSolStat SCIP_LPSOLSTAT

Definition at line 42 of file type_lp.h.

typedef enum SCIP_BoundType SCIP_BOUNDTYPE

Definition at line 50 of file type_lp.h.

typedef enum SCIP_SideType SCIP_SIDETYPE

Definition at line 58 of file type_lp.h.

typedef enum SCIP_RowOriginType SCIP_ROWORIGINTYPE

Definition at line 67 of file type_lp.h.

typedef enum SCIP_LPAlgo SCIP_LPALGO

Definition at line 77 of file type_lp.h.

typedef struct SCIP_ColSolVals SCIP_COLSOLVALS

collected values of a column which depend on the LP solution

Definition at line 79 of file type_lp.h.

typedef struct SCIP_RowSolVals SCIP_ROWSOLVALS

collected values of a row which depend on the LP solution

Definition at line 80 of file type_lp.h.

typedef struct SCIP_LpSolVals SCIP_LPSOLVALS

collected values of the LP data which depend on the LP solution

Definition at line 81 of file type_lp.h.

typedef struct SCIP_Col SCIP_COL

column of an LP

• List of all available methods

Definition at line 87 of file type_lp.h.

typedef struct SCIP_Row SCIP_ROW

row of an LP

• List of all available methods

Definition at line 93 of file type_lp.h.

typedef struct SCIP_Lp SCIP_LP

LP structure

• List of all available methods

Definition at line 99 of file type_lp.h.

Enumeration Type Documentation

enum SCIP_LPSolStat

solution status after solving LP

Enumerator:

SCIP_LPSOLSTAT_NOTSOLVED	LP was not solved, no solution exists
SCIP_LPSOLSTAT_OPTIMAL	LP was solved to optimality
SCIP_LPSOLSTAT_INFEASIBLE	LP is primal infeasible
SCIP_LPSOLSTAT_UNBOUNDEDRAY	LP has a primal unbounded ray
SCIP_LPSOLSTAT_OBJLIMIT	objective limit was reached during optimization
SCIP_LPSOLSTAT_ITERLIMIT	iteration limit was reached during optimization
SCIP_LPSOLSTAT_TIMELIMIT	time limit was reached during optimization
SCIP_LPSOLSTAT_ERROR	an error occured during optimization

Definition at line 31 of file type_lp.h.

enum SCIP_BoundType

type of variable bound: lower or upper bound

Enumerator:

SCIP_BOUNDTYPE_LOWER	lower bound
SCIP_BOUNDTYPE_UPPER	upper bound

Definition at line 45 of file type_lp.h.

enum SCIP_SideType

type of row side: left hand or right hand side

Enumerator:

SCIP_SIDETYPE_LEFT	left hand side
SCIP_SIDETYPE_RIGHT	right hand side

Definition at line 53 of file type_lp.h.

enum SCIP_RowOriginType

type of origin of row

Enumerator:

SCIP_ROWORIGINTYPE_UNSPEC	unspecified origin of row
SCIP_ROWORIGINTYPE_CONS	row created by constraint handler
SCIP_ROWORIGINTYPE_SEPA	row created by separator

Definition at line 61 of file type_lp.h.

enum SCIP_LPAlgo

type of LP algorithm

Enumerator:

SCIP_LPALGO_PRIMALSIMPLEX	primal simplex
SCIP_LPALGO_DUALSIMPLEX	dual simplex
SCIP_LPALGO_BARRIER	barrier algorithm
SCIP_LPALGO_BARRIERCROSSOVER	barrier algorithm with crossover

Definition at line 70 of file type_lp.h.