SPxMainSM< R >::FixVariablePS Class Reference

Postsolves variable fixing. More...

Public Member Functions
	FixVariablePS (const SPxLPBase< R > &lp, SPxMainSM &simplifier, int _j, const R val, std::shared_ptr< Tolerances > tols, 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 (VectorBase< R > &x, VectorBase< R > &y, VectorBase< R > &s, VectorBase< R > &r, DataArray< typename SPxSolverBase< R >::VarStatus > &cBasis, DataArray< typename SPxSolverBase< R >::VarStatus > &rBasis, bool isOptimal) const
Public Member Functions inherited from SPxMainSM< R >::PostStep
	PostStep (const char *p_name, std::shared_ptr< Tolerances > tols, 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 PostStep *	clone () const =0
	clone function for polymorphism More...
virtual void	execute (VectorBase< R > &x, VectorBase< R > &y, VectorBase< R > &s, VectorBase< R > &r, DataArray< typename SPxSolverBase< R >::VarStatus > &cBasis, DataArray< typename SPxSolverBase< R >::VarStatus > &rBasis, bool isOptimal) const =0
	executes the postsolving. More...
virtual bool	checkBasisDim (DataArray< typename SPxSolverBase< R >::VarStatus > rows, DataArray< typename SPxSolverBase< R >::VarStatus > cols) const
virtual R	feastol () const
virtual R	epsilon () const

Private Attributes
const int	m_j
const int	m_old_j
const R	m_val
const R	m_obj
const R	m_lower
const R	m_upper
const bool	m_correctIdx
DSVectorBase< R >	m_col
	does the index mapping have to be updated in postsolving? More...

Detailed Description

template<class R>
class soplex::SPxMainSM< R >::FixVariablePS

Postsolves variable fixing.

Definition at line 480 of file spxmainsm.h.

Constructor & Destructor Documentation

FixVariablePS() [1/2]

FixVariablePS	(	const SPxLPBase< R > &	lp,
		SPxMainSM &	simplifier,
		int	_j,
		const R	val,
		std::shared_ptr< Tolerances >	tols,
		bool	correctIdx = true
	)

Definition at line 494 of file spxmainsm.h.

References SPxSimplifier< R >::addObjoffset(), SPxMainSM< R >::FixVariablePS::m_j, SPxMainSM< R >::FixVariablePS::m_val, and SPxLPBase< R >::obj().

Referenced by SPxMainSM< R >::FixVariablePS::clone().

FixVariablePS() [2/2]

FixVariablePS

(

const FixVariablePS &

old

)

copy constructor

Definition at line 509 of file spxmainsm.h.

Member Function Documentation

clone()

virtual PostStep * clone ( ) const

virtual

clone function for polymorphism

Implements SPxMainSM< R >::PostStep.

Definition at line 532 of file spxmainsm.h.

References SPxMainSM< R >::FixVariablePS::FixVariablePS().

execute()

virtual void execute ( VectorBase< R > &  x, VectorBase< R > &  y, VectorBase< R > &  s, VectorBase< R > &  r, DataArray< typename SPxSolverBase< R >::VarStatus > &  cBasis, DataArray< typename SPxSolverBase< R >::VarStatus > &  rBasis, bool  isOptimal  ) const

virtual

Implements SPxMainSM< R >::PostStep.

operator=()

FixVariablePS & operator=

(

const FixVariablePS &

rhs

)

assignment operator

Definition at line 521 of file spxmainsm.h.

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

Member Data Documentation

m_col

DSVectorBase<R> m_col

private

does the index mapping have to be updated in postsolving?

Definition at line 490 of file spxmainsm.h.

Referenced by SPxMainSM< R >::FixVariablePS::operator=().

m_correctIdx

const bool m_correctIdx

private

Definition at line 489 of file spxmainsm.h.

m_j

const int m_j

private

Definition at line 483 of file spxmainsm.h.

Referenced by SPxMainSM< R >::FixVariablePS::FixVariablePS().

m_lower

const R m_lower

private

Definition at line 487 of file spxmainsm.h.

m_obj

const R m_obj

private

Definition at line 486 of file spxmainsm.h.

m_old_j

const int m_old_j

private

Definition at line 484 of file spxmainsm.h.

m_upper

const R m_upper

private

Definition at line 488 of file spxmainsm.h.

m_val

const R m_val

private

Definition at line 485 of file spxmainsm.h.

Referenced by SPxMainSM< R >::FixVariablePS::FixVariablePS().