soplex_interface.cpp File Reference

#include "soplex.h"
#include "soplex_interface.h"
#include <iostream>

Go to the source code of this file.

Functions
void *	SoPlex_create ()
void	SoPlex_free (void *soplex)
void	SoPlex_clearLPReal (void *soplex)
int	SoPlex_numRows (void *soplex)
int	SoPlex_numCols (void *soplex)
void	SoPlex_setRational (void *soplex)
void	SoPlex_setIntParam (void *soplex, int paramcode, int paramvalue)
int	SoPlex_getIntParam (void *soplex, int paramcode)
void	SoPlex_addColReal (void *soplex, double *colentries, int colsize, int nnonzeros, double objval, double lb, double ub)
void	SoPlex_addColRational (void *soplex, long *colnums, long *coldenoms, int colsize, int nnonzeros, long objvalnum, long objvaldenom, long lbnum, long lbdenom, long ubnum, long ubdenom)
void	SoPlex_addRowReal (void *soplex, double *rowentries, int rowsize, int nnonzeros, double lb, double ub)
void	SoPlex_addRowRational (void *soplex, long *rownums, long *rowdenoms, int rowsize, int nnonzeros, long lbnum, long lbdenom, long ubnum, long ubdenom)
void	SoPlex_getPrimalReal (void *soplex, double *primal, int dim)
char *	SoPlex_getPrimalRationalString (void *soplex, int dim)
void	SoPlex_getDualReal (void *soplex, double *dual, int dim)
int	SoPlex_optimize (void *soplex)
void	SoPlex_changeObjReal (void *soplex, double *obj, int dim)
void	SoPlex_changeObjRational (void *soplex, long *objnums, long *objdenoms, int dim)
void	SoPlex_changeLhsReal (void *soplex, double *lhs, int dim)
void	SoPlex_changeLhsRational (void *soplex, long *lhsnums, long *lhsdenoms, int dim)
void	SoPlex_changeRhsReal (void *soplex, double *rhs, int dim)
void	SoPlex_changeRhsRational (void *soplex, long *rhsnums, long *rhsdenoms, int dim)
void	SoPlex_writeFileReal (void *soplex, char *filename)
double	SoPlex_objValueReal (void *soplex)
char *	SoPlex_objValueRationalString (void *soplex)
void	SoPlex_changeBoundsReal (void *soplex, double *lb, double *ub, int dim)
void	SoPlex_changeVarBoundsReal (void *soplex, int colidx, double lb, double ub)
void	SoPlex_changeVarBoundsRational (void *soplex, int colidx, long lbnum, long lbdenom, long ubnum, long ubdenom)
void	SoPlex_changeVarUpperReal (void *soplex, int colidx, double ub)
void	SoPlex_getUpperReal (void *soplex, double *ub, int dim)

Function Documentation

SoPlex_addColRational()

void SoPlex_addColRational	(	void *	soplex,
		long *	colnums,
		long *	coldenoms,
		int	colsize,
		int	nnonzeros,
		long	objvalnum,
		long	objvaldenom,
		long	lbnum,
		long	lbdenom,
		long	ubnum,
		long	ubdenom
	)

adds a single rational column

Definition at line 96 of file soplex_interface.cpp.

References DSVectorBase< R >::add().

SoPlex_addColReal()

void SoPlex_addColReal	(	void *	soplex,
		double *	colentries,
		int	colsize,
		int	nnonzeros,
		double	objval,
		double	lb,
		double	ub
	)

adds a single (floating point) column

Definition at line 72 of file soplex_interface.cpp.

References DSVectorBase< R >::add().

SoPlex_addRowRational()

void SoPlex_addRowRational	(	void *	soplex,
		long *	rownums,
		long *	rowdenoms,
		int	rowsize,
		int	nnonzeros,
		long	lbnum,
		long	lbdenom,
		long	ubnum,
		long	ubdenom
	)

adds a single rational row

Definition at line 163 of file soplex_interface.cpp.

References DSVectorBase< R >::add().

SoPlex_addRowReal()

void SoPlex_addRowReal	(	void *	soplex,
		double *	rowentries,
		int	rowsize,
		int	nnonzeros,
		double	lb,
		double	ub
	)

adds a single (floating point) row

Definition at line 140 of file soplex_interface.cpp.

References DSVectorBase< R >::add().

SoPlex_changeBoundsReal()

void SoPlex_changeBoundsReal	(	void *	soplex,
		double *	lb,
		double *	ub,
		int	dim
	)

changes vectors of column bounds to lb and ub

Definition at line 364 of file soplex_interface.cpp.

SoPlex_changeLhsRational()

void SoPlex_changeLhsRational	(	void *	soplex,
		long *	lhsnums,
		long *	lhsdenoms,
		int	dim
	)

changes rational left-hand side vector for constraints to lhs

Definition at line 285 of file soplex_interface.cpp.

SoPlex_changeLhsReal()

void SoPlex_changeLhsReal	(	void *	soplex,
		double *	lhs,
		int	dim
	)

changes left-hand side vector for constraints to lhs

Definition at line 277 of file soplex_interface.cpp.

SoPlex_changeObjRational()

void SoPlex_changeObjRational	(	void *	soplex,
		long *	objnums,
		long *	objdenoms,
		int	dim
	)

changes rational objective function vector to obj

Definition at line 257 of file soplex_interface.cpp.

SoPlex_changeObjReal()

void SoPlex_changeObjReal	(	void *	soplex,
		double *	obj,
		int	dim
	)

changes objective function vector to obj

Definition at line 249 of file soplex_interface.cpp.

SoPlex_changeRhsRational()

void SoPlex_changeRhsRational	(	void *	soplex,
		long *	rhsnums,
		long *	rhsdenoms,
		int	dim
	)

changes rational right-hand side vector for constraints to rhs

Definition at line 313 of file soplex_interface.cpp.

SoPlex_changeRhsReal()

void SoPlex_changeRhsReal	(	void *	soplex,
		double *	rhs,
		int	dim
	)

changes right-hand side vector for constraints to rhs

Definition at line 305 of file soplex_interface.cpp.

SoPlex_changeVarBoundsRational()

void SoPlex_changeVarBoundsRational	(	void *	soplex,
		int	colidx,
		long	lbnum,
		long	lbdenom,
		long	ubnum,
		long	ubdenom
	)

changes rational bounds of a column to lbnum/lbdenom and ubnum/ubdenom

Definition at line 380 of file soplex_interface.cpp.

SoPlex_changeVarBoundsReal()

void SoPlex_changeVarBoundsReal	(	void *	soplex,
		int	colidx,
		double	lb,
		double	ub
	)

changes bounds of a column to lb and ub

Definition at line 373 of file soplex_interface.cpp.

SoPlex_changeVarUpperReal()

void SoPlex_changeVarUpperReal	(	void *	soplex,
		int	colidx,
		double	ub
	)

changes upper bound of column to ub

Definition at line 404 of file soplex_interface.cpp.

SoPlex_clearLPReal()

void SoPlex_clearLPReal

(

void *

soplex

)

clears the (floating point) LP

Definition at line 22 of file soplex_interface.cpp.

SoPlex_create()

void* SoPlex_create

(

)

creates new SoPlex struct

Definition at line 8 of file soplex_interface.cpp.

SoPlex_free()

void SoPlex_free

(

void *

soplex

)

frees SoPlex struct

Definition at line 15 of file soplex_interface.cpp.

SoPlex_getDualReal()

void SoPlex_getDualReal	(	void *	soplex,
		double *	dual,
		int	dim
	)

gets dual solution

Definition at line 235 of file soplex_interface.cpp.

SoPlex_getIntParam()

int SoPlex_getIntParam	(	void *	soplex,
		int	paramcode
	)

returns value of integer parameter

Definition at line 65 of file soplex_interface.cpp.

SoPlex_getPrimalRationalString()

char* SoPlex_getPrimalRationalString	(	void *	soplex,
		int	dim
	)

Returns rational primal solution in a char pointer. The caller needs to ensure the char array is freed.

Definition at line 211 of file soplex_interface.cpp.

SoPlex_getPrimalReal()

void SoPlex_getPrimalReal	(	void *	soplex,
		double *	primal,
		int	dim
	)

gets primal solution

Definition at line 202 of file soplex_interface.cpp.

SoPlex_getUpperReal()

void SoPlex_getUpperReal	(	void *	soplex,
		double *	ub,
		int	dim
	)

changes upper bound vector of columns to ub

Definition at line 411 of file soplex_interface.cpp.

SoPlex_numCols()

int SoPlex_numCols

(

void *

soplex

)

returns number of columns

Definition at line 36 of file soplex_interface.cpp.

SoPlex_numRows()

int SoPlex_numRows

(

void *

soplex

)

returns number of rows

Definition at line 29 of file soplex_interface.cpp.

SoPlex_objValueRationalString()

char* SoPlex_objValueRationalString

(

void *

soplex

)

Returns the rational objective value (as a string) if a primal solution is available. The caller needs to ensure the char array is freed.

Definition at line 349 of file soplex_interface.cpp.

SoPlex_objValueReal()

double SoPlex_objValueReal

(

void *

soplex

)

returns the objective value if a primal solution is available

Definition at line 340 of file soplex_interface.cpp.

SoPlex_optimize()

int SoPlex_optimize

(

void *

soplex

)

optimizes the given LP

Definition at line 242 of file soplex_interface.cpp.

SoPlex_setIntParam()

void SoPlex_setIntParam	(	void *	soplex,
		int	paramcode,
		int	paramvalue
	)

sets integer parameter value

Definition at line 58 of file soplex_interface.cpp.

SoPlex_setRational()

void SoPlex_setRational

(

void *

soplex

)

enables rational solving mode

Definition at line 43 of file soplex_interface.cpp.

References SoPlexBase< R >::CHECKMODE, SoPlexBase< R >::CHECKMODE_RATIONAL, SoPlexBase< R >::FEASTOL, SoPlexBase< R >::OPTTOL, SoPlexBase< R >::READMODE, SoPlexBase< R >::READMODE_RATIONAL, SoPlexBase< R >::SOLVEMODE, SoPlexBase< R >::SOLVEMODE_RATIONAL, SoPlexBase< R >::SYNCMODE, and SoPlexBase< R >::SYNCMODE_AUTO.

SoPlex_writeFileReal()

void SoPlex_writeFileReal	(	void *	soplex,
		char *	filename
	)

write LP to file

Definition at line 333 of file soplex_interface.cpp.