SPxMainSM::FixVariablePS Class Reference

Postsolves variable fixing. More...

Inheritance diagram for SPxMainSM::FixVariablePS:

Public Member Functions
	FixVariablePS (const SPxLP &lp, SPxMainSM &simplifier, int _j, const Real val, bool correctIdx=true)
	FixVariablePS (const FixVariablePS &old)
	copy constructor More...
FixVariablePS &	operator= (const FixVariablePS &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) 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 int	m_old_j
const Real	m_val
const Real	m_obj
const Real	m_lower
const Real	m_upper
const bool	m_correctIdx
DSVector	m_col
	does the index mapping have to be updated in postsolving? More...

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

Detailed Description

Postsolves variable fixing.

Definition at line 442 of file spxmainsm.h.

Constructor & Destructor Documentation

FixVariablePS	(	const SPxLP &	lp,
		SPxMainSM &	simplifier,
		int	_j,
		const Real	val,
		bool	correctIdx = true
	)

Definition at line 456 of file spxmainsm.h.

References SPxSimplifier::addObjoffset(), and SPxLPBase< R >::obj().

FixVariablePS

(

const FixVariablePS &

old

)

copy constructor

Definition at line 470 of file spxmainsm.h.

Member Function Documentation

virtual PostStep* clone ( ) const

virtual

clone function for polymorphism

Implements SPxMainSM::PostStep.

Definition at line 493 of file spxmainsm.h.

References SPxMainSM::PostStep::execute(), and SPxMainSM::FixVariablePS.

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

virtual

Implements SPxMainSM::PostStep.

Definition at line 455 of file spxmainsm.cpp.

References SPxMainSM::PostStep::checkBasisDim(), soplex::EQrel(), SPxSolver::FIXED, SPxSolver::ON_LOWER, SPxSolver::ON_UPPER, and SPxSolver::ZERO.

FixVariablePS& operator=

(

const FixVariablePS &

rhs

)

assignment operator

Definition at line 482 of file spxmainsm.h.

References SPxMainSM::FixVariablePS::m_col, and SPxMainSM::PostStep::operator=().

Member Data Documentation

DSVector m_col

private

does the index mapping have to be updated in postsolving?

Definition at line 452 of file spxmainsm.h.

Referenced by SPxMainSM::FixVariablePS::operator=().

const bool m_correctIdx

private

Definition at line 451 of file spxmainsm.h.

const int m_j

private

Definition at line 445 of file spxmainsm.h.

const Real m_lower

private

Definition at line 449 of file spxmainsm.h.

const Real m_obj

private

Definition at line 448 of file spxmainsm.h.

const int m_old_j

private

Definition at line 446 of file spxmainsm.h.

const Real m_upper

private

Definition at line 450 of file spxmainsm.h.

const Real m_val

private

Definition at line 447 of file spxmainsm.h.