SPxMainSM::ZeroObjColSingletonPS Class Reference

Postsolves column singletons with zero objective. More...

Inheritance diagram for SPxMainSM::ZeroObjColSingletonPS:

Public Member Functions
	ZeroObjColSingletonPS (const SPxLP &lp, const SPxMainSM &, int _j, int _i)
	ZeroObjColSingletonPS (const ZeroObjColSingletonPS &old)
	copy constructor More...
ZeroObjColSingletonPS &	operator= (const ZeroObjColSingletonPS &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_i
const int	m_old_j
const Real	m_lhs
const Real	m_rhs
const Real	m_lower
const Real	m_upper
DSVector	m_row

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

Detailed Description

Postsolves column singletons with zero objective.

Definition at line 647 of file spxmainsm.h.

Constructor & Destructor Documentation

ZeroObjColSingletonPS	(	const SPxLP &	lp,
		const SPxMainSM &	,
		int	_j,
		int	_i
	)

Definition at line 661 of file spxmainsm.h.

ZeroObjColSingletonPS

(

const ZeroObjColSingletonPS &

old

)

copy constructor

Definition at line 673 of file spxmainsm.h.

Member Function Documentation

virtual PostStep* clone ( ) const

virtual

clone function for polymorphism

Implements SPxMainSM::PostStep.

Definition at line 696 of file spxmainsm.h.

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

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 665 of file spxmainsm.cpp.

References ASSERT_WARN, SPxSolver::BASIC, SPxMainSM::PostStep::checkBasisDim(), SPxMainSM::PostStep::eps(), soplex::EQrel(), SPxSolver::FIXED, soplex::GErel(), soplex::infinity, soplex::isNotZero(), soplex::isZero(), soplex::LErel(), soplex::maxAbs(), SPxSolver::ON_LOWER, and SPxSolver::ON_UPPER.

ZeroObjColSingletonPS& operator=

(

const ZeroObjColSingletonPS &

rhs

)

assignment operator

Definition at line 685 of file spxmainsm.h.

References SPxMainSM::ZeroObjColSingletonPS::m_row, and SPxMainSM::PostStep::operator=().

Member Data Documentation

const int m_i

private

Definition at line 651 of file spxmainsm.h.

const int m_j

private

Definition at line 650 of file spxmainsm.h.

const Real m_lhs

private

Definition at line 653 of file spxmainsm.h.

const Real m_lower

private

Definition at line 655 of file spxmainsm.h.

const int m_old_j

private

Definition at line 652 of file spxmainsm.h.

const Real m_rhs

private

Definition at line 654 of file spxmainsm.h.

DSVector m_row

private

Definition at line 657 of file spxmainsm.h.

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

const Real m_upper

private

Definition at line 656 of file spxmainsm.h.