Couenne::CouenneConstraint Class Reference

Class to represent nonlinear constraints. More...

#include <CouenneProblemElem.hpp>

Inheritance diagram for Couenne::CouenneConstraint:

Collaboration diagram for Couenne::CouenneConstraint:

Public Member Functions
	CouenneConstraint (expression *body=NULL, expression *lb=NULL, expression *ub=NULL)
	Constructor.
virtual	~CouenneConstraint ()
	Destructor.
	CouenneConstraint (const CouenneConstraint &c, Domain *d=NULL)
	Copy constructor.
virtual CouenneConstraint *	clone (Domain *d=NULL) const
	Cloning method.
virtual expression *	Lb () const
	Expression of lower bound.
virtual expression *	Ub () const
	Expression of upper bound.
virtual expression *	Body () const
	Expression of body of constraint.
virtual expression *	Body (expression *newBody)
	Set body of constraint.
virtual exprAux *	standardize (CouenneProblem *)
	decompose body of constraint through auxiliary variables
virtual void	print (std::ostream &=std::cout)
	print constraint

Protected Attributes
expression *	body_
	Body of constraint.
expression *	lb_
	Lower bound (expression)
expression *	ub_
	Upper bound (expression)

Detailed Description

Class to represent nonlinear constraints.

It consists of an expression as the body and two range expressions as lower- and upper bounds.

A general constraint is defined as lb_ <= body_ <= ub_, where all three components are expressions, depending on variables, auxiliaries and bounds. If the constraint is 2 <= exp (x1+x2) <= 4, then:

body_ = exp (x1+x2), that is,

new exprExp (new exprSum (new exprVar (1), new exprVar (2))

while lb_ = new exprConst (2.) and ub_ = new exprConst (4.).

Definition at line 39 of file CouenneProblemElem.hpp.

Constructor & Destructor Documentation

CouenneConstraint() [1/2]

Couenne::CouenneConstraint::CouenneConstraint ( expression *  body = NULL, expression *  lb = NULL, expression *  ub = NULL  )

inline

Constructor.

Definition at line 50 of file CouenneProblemElem.hpp.

~CouenneConstraint()

virtual Couenne::CouenneConstraint::~CouenneConstraint ( )

inlinevirtual

Destructor.

Definition at line 67 of file CouenneProblemElem.hpp.

CouenneConstraint() [2/2]

Couenne::CouenneConstraint::CouenneConstraint ( const CouenneConstraint &  c, Domain *  d = NULL  )

inline

Copy constructor.

Definition at line 74 of file CouenneProblemElem.hpp.

Member Function Documentation

clone()

virtual CouenneConstraint * Couenne::CouenneConstraint::clone ( Domain *  d = NULL ) const

inlinevirtual

Cloning method.

Reimplemented in Couenne::CouennePSDcon.

Definition at line 80 of file CouenneProblemElem.hpp.

Lb()

virtual expression * Couenne::CouenneConstraint::Lb ( ) const

inlinevirtual

Expression of lower bound.

Definition at line 84 of file CouenneProblemElem.hpp.

Ub()

virtual expression * Couenne::CouenneConstraint::Ub ( ) const

inlinevirtual

Expression of upper bound.

Definition at line 85 of file CouenneProblemElem.hpp.

Body() [1/2]

virtual expression * Couenne::CouenneConstraint::Body ( ) const

inlinevirtual

Expression of body of constraint.

Definition at line 86 of file CouenneProblemElem.hpp.

Body() [2/2]

virtual expression * Couenne::CouenneConstraint::Body ( expression *  newBody )

inlinevirtual

Set body of constraint.

Definition at line 89 of file CouenneProblemElem.hpp.

standardize()

virtual exprAux * Couenne::CouenneConstraint::standardize ( CouenneProblem *  )

virtual

decompose body of constraint through auxiliary variables

Reimplemented in Couenne::CouennePSDcon.

print()

virtual void Couenne::CouenneConstraint::print ( std::ostream &  = std::cout )

virtual

print constraint

Reimplemented in Couenne::CouennePSDcon.

Member Data Documentation

body_

expression* Couenne::CouenneConstraint::body_

protected

Body of constraint.

Definition at line 43 of file CouenneProblemElem.hpp.

lb_

expression* Couenne::CouenneConstraint::lb_

protected

Lower bound (expression)

Definition at line 44 of file CouenneProblemElem.hpp.

ub_

expression* Couenne::CouenneConstraint::ub_

protected

Upper bound (expression)

Definition at line 45 of file CouenneProblemElem.hpp.

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

• /builddir/build/BUILD/Couenne-0.5.8/src/problem/CouenneProblemElem.hpp