SPxMainSM::TightenBoundsPS Class Reference

Postsolves variable bound tightening from pseudo objective propagation. More...

Public Member Functions
	TightenBoundsPS (const SPxLP &lp, int j, Real origupper, Real origlower)
	TightenBoundsPS (const TightenBoundsPS &old)
	copy constructor More...
TightenBoundsPS &	operator= (const TightenBoundsPS &rhs)
	assignment operator More...
virtual PostStep *	clone () const
	clone function for polymorphism More...
virtual void	execute (DVector &x, DVector &y, DVector &s, DVector &r, DataArray< SPxSolver::VarStatus > &cBasis, DataArray< SPxSolver::VarStatus > &rBasis, bool isOptimal) const
Public Member Functions inherited from SPxMainSM::PostStep
	PostStep (const char *p_name, int nR=0, int nC=0)
	constructor. More...
	PostStep (const PostStep &old)
	copy constructor. More...
PostStep &	operator= (const PostStep &)
	assignment operator More...
virtual	~PostStep ()
	destructor. More...
virtual const char *	getName () const
	get name of simplifying step. More...
virtual bool	checkBasisDim (DataArray< SPxSolver::VarStatus > rows, DataArray< SPxSolver::VarStatus > cols) const

Private Attributes
const int	m_j
const Real	m_origupper
const Real	m_origlower

Additional Inherited Members
Static Public Member Functions inherited from SPxMainSM::PostStep
static Real	eps ()

Detailed Description

Postsolves variable bound tightening from pseudo objective propagation.

Definition at line 1115 of file spxmainsm.h.

Constructor & Destructor Documentation

TightenBoundsPS() [1/2]

TightenBoundsPS	(	const SPxLP &	lp,
		int	j,
		Real	origupper,
		Real	origlower
	)

Definition at line 1124 of file spxmainsm.h.

TightenBoundsPS() [2/2]

TightenBoundsPS

(

const TightenBoundsPS &

old

)

copy constructor

Definition at line 1132 of file spxmainsm.h.

Member Function Documentation

clone()

virtual PostStep* clone ( ) const

virtual

clone function for polymorphism

Implements SPxMainSM::PostStep.

Definition at line 1144 of file spxmainsm.h.

References SPxMainSM::PostStep::execute(), and soplex::spx_alloc().

execute()

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

virtual

Implements SPxMainSM::PostStep.

Definition at line 1332 of file spxmainsm.cpp.

References SPxSolver::BASIC, SPxMainSM::PostStep::checkBasisDim(), SPxMainSM::PostStep::eps(), SPxSolver::FIXED, soplex::GT(), soplex::LT(), SPxSolver::ON_LOWER, and SPxSolver::ON_UPPER.

operator=()

TightenBoundsPS& operator=

(

const TightenBoundsPS &

rhs

)

assignment operator

Definition at line 1139 of file spxmainsm.h.

Member Data Documentation

m_j

const int m_j

private

Definition at line 1118 of file spxmainsm.h.

m_origlower

const Real m_origlower

private

Definition at line 1120 of file spxmainsm.h.

m_origupper

const Real m_origupper

private

Definition at line 1119 of file spxmainsm.h.