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gubrow_action Class Reference

Detect and remove entries whose sum is known. More...

#include <CoinPresolveDupcol.hpp>

+ Inheritance diagram for gubrow_action:
+ Collaboration diagram for gubrow_action:

Classes

struct  action
 

Public Member Functions

const char * name () const
 A name for debug printing. More...
 
void postsolve (CoinPostsolveMatrix *prob) const
 Apply the postsolve transformation for this particular presolve action. More...
 
virtual ~gubrow_action ()
 
- Public Member Functions inherited from CoinPresolveAction
 CoinPresolveAction (const CoinPresolveAction *next)
 Construct a postsolve object and add it to the transformation list. More...
 
void setNext (const CoinPresolveAction *nextAction)
 modify next (when building rather than passing) More...
 
virtual ~CoinPresolveAction ()
 Virtual destructor. More...
 

Static Public Member Functions

static const CoinPresolveActionpresolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next)
 
- Static Public Member Functions inherited from CoinPresolveAction
static void throwCoinError (const char *error, const char *ps_routine)
 Stub routine to throw exceptions. More...
 

Private Member Functions

 gubrow_action (int nactions, const action *actions, const CoinPresolveAction *next)
 

Private Attributes

const int nactions_
 
const action *const actions_
 

Additional Inherited Members

- Public Attributes inherited from CoinPresolveAction
const CoinPresolveActionnext
 The next presolve transformation. More...
 

Detailed Description

Detect and remove entries whose sum is known.

If we have an equality row where all entries same then For other rows where all entries for that equality row are same then we can delete entries and modify rhs gubrow_action is definitely a work in progress; postsolve is unimplemented.

Definition at line 153 of file CoinPresolveDupcol.hpp.

Constructor & Destructor Documentation

gubrow_action::gubrow_action ( int  nactions,
const action actions,
const CoinPresolveAction next 
)
inlineprivate

Definition at line 168 of file CoinPresolveDupcol.hpp.

virtual gubrow_action::~gubrow_action ( )
virtual

Member Function Documentation

const char* gubrow_action::name ( ) const
virtual

A name for debug printing.

It is expected that the name is not stored in the transform itself.

Implements CoinPresolveAction.

static const CoinPresolveAction* gubrow_action::presolve ( CoinPresolveMatrix prob,
const CoinPresolveAction next 
)
static
void gubrow_action::postsolve ( CoinPostsolveMatrix prob) const
virtual

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.

Member Data Documentation

const int gubrow_action::nactions_
private

Definition at line 164 of file CoinPresolveDupcol.hpp.

const action* const gubrow_action::actions_
private

Definition at line 165 of file CoinPresolveDupcol.hpp.


The documentation for this class was generated from the following file: