SPxMainSM::PostStep Class Reference

Base class for postsolving operations.Class PostStep is an abstract base class providing the interface for operations in the postsolving process. More...

Inheritance diagram for SPxMainSM::PostStep:

Public Member Functions
	PostStep (const char *p_name, int nR=0, int nC=0)
	constructor.
	PostStep (const PostStep &old)
	copy constructor.
PostStep &	operator= (const PostStep &)
	assignment operator
virtual	~PostStep ()
	destructor.
virtual const char *	getName () const
	get name of simplifying step.
virtual PostStep *	clone () const =0
	clone function for polymorphism
virtual void	execute (DVector &x, DVector &y, DVector &s, DVector &r, DataArray< SPxSolver::VarStatus > &cBasis, DataArray< SPxSolver::VarStatus > &rBasis) const =0
	executes the postsolving.
virtual bool	checkBasisDim (DataArray< SPxSolver::VarStatus > rows, DataArray< SPxSolver::VarStatus > cols) const

Static Public Member Functions
static Real	eps ()

Private Attributes
const char *	m_name
	name of the simplifier
int	nCols
	number of cols
int	nRows
	number of rows

Detailed Description

Base class for postsolving operations.

Class PostStep is an abstract base class providing the interface for operations in the postsolving process.

Definition at line 73 of file spxmainsm.h.

Constructor & Destructor Documentation

PostStep	(	const char *	p_name,
		int	nR = 0,
		int	nC = 0
	)

constructor.

Definition at line 85 of file spxmainsm.h.

PostStep

(

const PostStep &

old

)

copy constructor.

Definition at line 91 of file spxmainsm.h.

virtual ~PostStep ( )

virtual

destructor.

Definition at line 102 of file spxmainsm.h.

References SPxMainSM::PostStep::m_name.

Member Function Documentation

bool checkBasisDim ( DataArray< SPxSolver::VarStatus >  rows, DataArray< SPxSolver::VarStatus >  cols  ) const

virtual

Definition at line 64 of file spxmainsm.cpp.

References SPxSolver::BASIC, SPxMainSM::PostStep::nCols, and SPxMainSM::PostStep::nRows.

virtual PostStep* clone ( ) const

pure virtual

clone function for polymorphism

Implemented in SPxMainSM::DuplicateColsPS, SPxMainSM::DuplicateRowsPS, SPxMainSM::DoubletonEquationPS, SPxMainSM::FreeColSingletonPS, SPxMainSM::ZeroObjColSingletonPS, SPxMainSM::FreeZeroObjVariablePS, SPxMainSM::FixBoundsPS, SPxMainSM::FixVariablePS, SPxMainSM::ForceConstraintPS, SPxMainSM::RowSingletonPS, SPxMainSM::EmptyConstraintPS, and SPxMainSM::FreeConstraintPS.

static Real eps ( )

static

Definition at line 119 of file spxmainsm.h.

Referenced by SPxMainSM::duplicateRows(), and SPxMainSM::FixBoundsPS::FixBoundsPS().

virtual void execute ( DVector &  x, DVector &  y, DVector &  s, DVector &  r, DataArray< SPxSolver::VarStatus > &  cBasis, DataArray< SPxSolver::VarStatus > &  rBasis  ) const

pure virtual

executes the postsolving.

Implemented in SPxMainSM::DuplicateColsPS, SPxMainSM::DuplicateRowsPS, SPxMainSM::DoubletonEquationPS, SPxMainSM::FreeColSingletonPS, SPxMainSM::ZeroObjColSingletonPS, SPxMainSM::FreeZeroObjVariablePS, SPxMainSM::FixBoundsPS, SPxMainSM::FixVariablePS, SPxMainSM::ForceConstraintPS, SPxMainSM::RowSingletonPS, SPxMainSM::EmptyConstraintPS, and SPxMainSM::FreeConstraintPS.

virtual const char* getName ( ) const

virtual

get name of simplifying step.

Definition at line 107 of file spxmainsm.h.

References SPxMainSM::PostStep::m_name.

PostStep& operator=

(

const PostStep &

)

assignment operator

Definition at line 97 of file spxmainsm.h.

Referenced by SPxMainSM::FreeConstraintPS::operator=(), SPxMainSM::EmptyConstraintPS::operator=(), SPxMainSM::RowSingletonPS::operator=(), SPxMainSM::ForceConstraintPS::operator=(), SPxMainSM::FixVariablePS::operator=(), SPxMainSM::FixBoundsPS::operator=(), SPxMainSM::FreeZeroObjVariablePS::operator=(), SPxMainSM::ZeroObjColSingletonPS::operator=(), SPxMainSM::FreeColSingletonPS::operator=(), SPxMainSM::DoubletonEquationPS::operator=(), SPxMainSM::DuplicateRowsPS::operator=(), and SPxMainSM::DuplicateColsPS::operator=().

Member Data Documentation

const char* m_name

private

name of the simplifier

Definition at line 77 of file spxmainsm.h.

Referenced by SPxMainSM::PostStep::getName(), and SPxMainSM::PostStep::~PostStep().

int nCols

private

number of cols

Definition at line 79 of file spxmainsm.h.

Referenced by SPxMainSM::PostStep::checkBasisDim().

int nRows

private

number of rows

Definition at line 81 of file spxmainsm.h.

Referenced by SPxMainSM::PostStep::checkBasisDim().