forcing_constraint_action Class Reference

Detect and process forcing constraints and useless constraints. More...

#include <CoinPresolveForcing.hpp>

Inheritance diagram for forcing_constraint_action:
CoinPresolveAction

List of all members.

Classes

struct  action

Public Member Functions

 forcing_constraint_action (int nactions, const action *actions, const CoinPresolveAction *next)
const char * name () const
 A name for debug printing.
void postsolve (CoinPostsolveMatrix *prob) const
 Apply the postsolve transformation for this particular presolve action.
virtual ~forcing_constraint_action ()

Static Public Member Functions

static const CoinPresolveActionpresolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next)

Detailed Description

Detect and process forcing constraints and useless constraints.

A constraint is useless if the bounds on the variables prevent the constraint from ever being violated.

A constraint is a forcing constraint if the bounds on the constraint force the value of an involved variable to one of its bounds. A constraint can force more than one variable.

Definition at line 27 of file CoinPresolveForcing.hpp.


Constructor & Destructor Documentation

forcing_constraint_action::forcing_constraint_action ( int  nactions,
const action actions,
const CoinPresolveAction next 
) [inline]

Definition at line 45 of file CoinPresolveForcing.hpp.

virtual forcing_constraint_action::~forcing_constraint_action (  )  [virtual]

Member Function Documentation

const char* forcing_constraint_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* forcing_constraint_action::presolve ( CoinPresolveMatrix prob,
const CoinPresolveAction next 
) [static]
void forcing_constraint_action::postsolve ( CoinPostsolveMatrix prob  )  const [virtual]

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.


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