drop_zero_coefficients_action Class Reference

Removal of explicit zeros. More...

#include <CoinPresolveZeros.hpp>

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List of all members.

Public Member Functions

const char * name () const
 A name for debug printing.
void postsolve (CoinPostsolveMatrix *prob) const
 Apply the postsolve transformation for this particular presolve action.
 ~drop_zero_coefficients_action ()

Static Public Member Functions

static const CoinPresolveActionpresolve (CoinPresolveMatrix *prob, int *checkcols, int ncheckcols, const CoinPresolveAction *next)

Private Member Functions

 drop_zero_coefficients_action (int nzeros, const dropped_zero *zeros, const CoinPresolveAction *next)

Private Attributes

const int nzeros_
const dropped_zero *const zeros_

Detailed Description

Removal of explicit zeros.

The presolve action for this class removes explicit zeros from the constraint matrix. The postsolve action puts them back.

Definition at line 30 of file CoinPresolveZeros.hpp.


Constructor & Destructor Documentation

drop_zero_coefficients_action::drop_zero_coefficients_action ( int  nzeros,
const dropped_zero zeros,
const CoinPresolveAction next 
) [inline, private]

Definition at line 35 of file CoinPresolveZeros.hpp.

drop_zero_coefficients_action::~drop_zero_coefficients_action (  )  [inline]

Definition at line 52 of file CoinPresolveZeros.hpp.


Member Function Documentation

const char* drop_zero_coefficients_action::name (  )  const [inline, virtual]

A name for debug printing.

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

Implements CoinPresolveAction.

Definition at line 43 of file CoinPresolveZeros.hpp.

static const CoinPresolveAction* drop_zero_coefficients_action::presolve ( CoinPresolveMatrix prob,
int *  checkcols,
int  ncheckcols,
const CoinPresolveAction next 
) [static]
void drop_zero_coefficients_action::postsolve ( CoinPostsolveMatrix prob  )  const [virtual]

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.


Member Data Documentation

Definition at line 32 of file CoinPresolveZeros.hpp.

Definition at line 33 of file CoinPresolveZeros.hpp.


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

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