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CoinUtils
src
CoinPresolveForcing.hpp
Go to the documentation of this file.
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/* $Id: CoinPresolveForcing.hpp 2083 2019-01-06 19:38:09Z unxusr $ */
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// Copyright (C) 2002, International Business Machines
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// Corporation and others. All Rights Reserved.
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// This code is licensed under the terms of the Eclipse Public License (EPL).
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#ifndef CoinPresolveForcing_H
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#define CoinPresolveForcing_H
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#include "
CoinPresolveMatrix.hpp
"
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#define IMPLIED_BOUND 7
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class
forcing_constraint_action
:
public
CoinPresolveAction
{
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forcing_constraint_action
();
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forcing_constraint_action
(
const
forcing_constraint_action
&rhs);
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forcing_constraint_action
&
operator=
(
const
forcing_constraint_action
&rhs);
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public
:
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struct
action
{
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const
int
*
rowcols
;
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const
double
*
bounds
;
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int
row
;
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int
nlo
;
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int
nup
;
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};
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private
:
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const
int
nactions_
;
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// actions_ is owned by the class and must be deleted at destruction
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const
action
*
const
actions_
;
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public
:
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forcing_constraint_action
(
int
nactions,
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const
action
*actions,
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const
CoinPresolveAction
*
next
)
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:
CoinPresolveAction
(next)
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,
nactions_
(nactions)
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,
actions_
(actions)
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{
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}
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const
char
*
name
()
const
;
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static
const
CoinPresolveAction
*
presolve
(
CoinPresolveMatrix
*prob,
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const
CoinPresolveAction
*
next
);
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void
postsolve
(
CoinPostsolveMatrix
*prob)
const
;
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virtual
~forcing_constraint_action
();
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};
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#endif
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/* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
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*/
forcing_constraint_action::actions_
const action *const actions_
Definition:
CoinPresolveForcing.hpp:44
forcing_constraint_action::forcing_constraint_action
forcing_constraint_action()
forcing_constraint_action::action
Definition:
CoinPresolveForcing.hpp:33
forcing_constraint_action::action::bounds
const double * bounds
Definition:
CoinPresolveForcing.hpp:35
CoinPresolveAction
Abstract base class of all presolve routines.
Definition:
CoinPresolveMatrix.hpp:163
forcing_constraint_action::action::row
int row
Definition:
CoinPresolveForcing.hpp:36
forcing_constraint_action::name
const char * name() const
A name for debug printing.
forcing_constraint_action::forcing_constraint_action
forcing_constraint_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition:
CoinPresolveForcing.hpp:47
CoinPresolveMatrix.hpp
Declarations for CoinPresolveMatrix and CoinPostsolveMatrix and their common base class CoinPrePostso...
forcing_constraint_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
CoinPresolveAction::next
const CoinPresolveAction * next
The next presolve transformation.
Definition:
CoinPresolveMatrix.hpp:180
CoinPostsolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during postsol...
Definition:
CoinPresolveMatrix.hpp:1552
forcing_constraint_action::action::nup
int nup
Definition:
CoinPresolveForcing.hpp:38
forcing_constraint_action::~forcing_constraint_action
virtual ~forcing_constraint_action()
CoinPresolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during presolv...
Definition:
CoinPresolveMatrix.hpp:905
forcing_constraint_action::nactions_
const int nactions_
Definition:
CoinPresolveForcing.hpp:42
forcing_constraint_action::action::nlo
int nlo
Definition:
CoinPresolveForcing.hpp:37
forcing_constraint_action::action::rowcols
const int * rowcols
Definition:
CoinPresolveForcing.hpp:34
forcing_constraint_action::operator=
forcing_constraint_action & operator=(const forcing_constraint_action &rhs)
forcing_constraint_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
forcing_constraint_action
Detect and process forcing constraints and useless constraints.
Definition:
CoinPresolveForcing.hpp:27
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