Forwards requests for output and point transformations to the GAMS I/O library iolib. More...

#include <GamsHandlerIOLib.hpp>

Inheritance diagram for GamsHandlerIOLib:

Collaboration diagram for GamsHandlerIOLib:

Public Member Functions
	GamsHandlerIOLib (bool is_reformulated_)
	Constructor. More...

void	print (PrintMask mask, const char *msg) const
	Prints the given message into the GAMS output channels (log and/or status file). More...

void	println (PrintMask mask, const char *msg) const
	Prints the given message plus an extra newline into the GAMS output channels (log and/or status file). More...

void	flush (PrintMask mask=AllMask) const
	Flushes the buffer of a GAMS output channel. More...

void	translateToGamsSpaceX (const double x_, double objval_, double x) const
	Translates a given point as seem by the GamsModel or smag user into the original gams space. More...

void	translateToGamsSpaceLB (const double lb_, double lb) const
	Translates a given lower bound as seem by the GamsModel or smag user into the original gams space. More...

void	translateToGamsSpaceUB (const double ub_, double ub) const
	Translates a given upper bound as seem by the GamsModel or smag user into the original gams space. More...

void	translateFromGamsSpaceX (const double x_, double x) const
	Translates a given point from the original gams space into what the user sees in a GamsModel or smag. More...

bool	translateFromGamsSpaceCol (const int indices_, int indices, int nr) const
	Translates given column indices from the original gams space into what the user sees in a GamsModel or smag. More...

int	translateToGamsSpaceCol (int colindex) const
	Translates given column index into the original gams space. More...

int	translateToGamsSpaceRow (int rowindex) const
	Translates given row index into the original gams space. More...

double	getMInfinity () const
	GAMS value for minus infinity. More...

double	getPInfinity () const
	GAMS value for plus infinity. More...

int	getObjSense () const
	Objective sense: +1 for min, -1 for max. More...

int	getColCount () const
	The number of columns in the possibly transformed problem space. More...

int	getColCountGams () const
	The number of columns in the original gams space. More...

int	getObjVariable () const
	The index of the objective variable in the original gams space. More...

int	getObjRow () const
	The index of the objective row in the original gams space. More...

const char *	getSystemDir () const
	Path to GAMS system. More...

bool	isDictionaryWritten () const
	Indicates whether GAMS has written a dictionary file. More...

const char *	dictionaryFile () const
	Gives the name of a dictionary file, if any. More...

int	dictionaryVersion () const
	Gives the dictionary version. More...

Public Member Functions inherited from GamsHandler
	GamsHandler ()
	Constructor. More...

virtual	~GamsHandler ()
	Destructor. More...

Private Attributes
bool	is_reformulated

Additional Inherited Members
Public Types inherited from GamsHandler
enum	PrintMask { LogMask = 0x1, StatusMask = 0x2, AllMask = LogMask\|StatusMask, LastPrintMask }
	Distinguishing between message types. More...

Detailed Description

Forwards requests for output and point transformations to the GAMS I/O library iolib.

Definition at line 16 of file GamsHandlerIOLib.hpp.

Constructor & Destructor Documentation

GamsHandlerIOLib::GamsHandlerIOLib ( bool is_reformulated_ )

inline

Constructor.

Parameters

is_reformulated_ Whether we should assume that the objective row had been moved into the objective function and the objective variable been eliminated.

Definition at line 24 of file GamsHandlerIOLib.hpp.

Member Function Documentation

void GamsHandlerIOLib::print	(	PrintMask	mask,
		const char *	msg
	)		const

virtual

Prints the given message into the GAMS output channels (log and/or status file).

Implements GamsHandler.

void GamsHandlerIOLib::println	(	PrintMask	mask,
		const char *	msg
	)		const

virtual

Prints the given message plus an extra newline into the GAMS output channels (log and/or status file).

Implements GamsHandler.

void GamsHandlerIOLib::flush ( PrintMask mask = AllMask ) const

virtual

Flushes the buffer of a GAMS output channel.

Implements GamsHandler.

void GamsHandlerIOLib::translateToGamsSpaceX	(	const double *	x_,
		double	objval_,
		double *	x
	)		const

virtual

Translates a given point as seem by the GamsModel or smag user into the original gams space.

These are different because GamsModel and SMAG reformulate the objective function, if possible.

Implements GamsHandler.

void GamsHandlerIOLib::translateToGamsSpaceLB	(	const double *	lb_,
		double *	lb
	)		const

virtual

Translates a given lower bound as seem by the GamsModel or smag user into the original gams space.

Implements GamsHandler.

void GamsHandlerIOLib::translateToGamsSpaceUB	(	const double *	ub_,
		double *	ub
	)		const

virtual

Translates a given upper bound as seem by the GamsModel or smag user into the original gams space.

Implements GamsHandler.

void GamsHandlerIOLib::translateFromGamsSpaceX	(	const double *	x_,
		double *	x
	)		const

virtual

Translates a given point from the original gams space into what the user sees in a GamsModel or smag.

Implements GamsHandler.

bool GamsHandlerIOLib::translateFromGamsSpaceCol	(	const int *	indices_,
		int *	indices,
		int	nr
	)		const

virtual

Translates given column indices from the original gams space into what the user sees in a GamsModel or smag.

Here, input and output are allowed to be the same array.

Parameters

indices_	Array of column indices of length nr (input).
indices	Array of length nr to store column indices (output).
nr	Length of arrays.

Returns: False if there was an error, e.g., a column index is given that was reformulated out by GamsModel or smag (e.g., objective variable). True otherwise.

Implements GamsHandler.

int GamsHandlerIOLib::translateToGamsSpaceCol ( int colindex ) const

virtual

Translates given column index into the original gams space.

Returns: -1 if failure, the column index in gams space otherwise.

Implements GamsHandler.

int GamsHandlerIOLib::translateToGamsSpaceRow ( int rowindex ) const

virtual

Translates given row index into the original gams space.

Returns: -1 if failure, the row index in gams space otherwise.

Implements GamsHandler.

double GamsHandlerIOLib::getMInfinity ( ) const

virtual

GAMS value for minus infinity.

Implements GamsHandler.

double GamsHandlerIOLib::getPInfinity ( ) const

virtual

GAMS value for plus infinity.

Implements GamsHandler.

int GamsHandlerIOLib::getObjSense ( ) const

virtual

Objective sense: +1 for min, -1 for max.

Implements GamsHandler.

int GamsHandlerIOLib::getColCount ( ) const

virtual

The number of columns in the possibly transformed problem space.

Implements GamsHandler.

int GamsHandlerIOLib::getColCountGams ( ) const

virtual

The number of columns in the original gams space.

Implements GamsHandler.

int GamsHandlerIOLib::getObjVariable ( ) const

virtual

The index of the objective variable in the original gams space.

Implements GamsHandler.

int GamsHandlerIOLib::getObjRow ( ) const

virtual

The index of the objective row in the original gams space.

Returns -1 if the problem has not been reformulated and thus the objective has not been lifted.

Implements GamsHandler.

const char* GamsHandlerIOLib::getSystemDir ( ) const

virtual

Path to GAMS system.

Implements GamsHandler.

bool GamsHandlerIOLib::isDictionaryWritten ( ) const

virtual

Indicates whether GAMS has written a dictionary file.

Returns: True if dictionary file had been written, False else.

Implements GamsHandler.

const char* GamsHandlerIOLib::dictionaryFile ( ) const

virtual

Gives the name of a dictionary file, if any.

Returns: Name of dictionary file, or NULL if none.

Implements GamsHandler.

int GamsHandlerIOLib::dictionaryVersion ( ) const

virtual

Gives the dictionary version.

Returns: Version of dictionary.

Implements GamsHandler.

Member Data Documentation

bool GamsHandlerIOLib::is_reformulated

private

Definition at line 18 of file GamsHandlerIOLib.hpp.

The documentation for this class was generated from the following file:

GamsHandlerIOLib.hpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation