Class to represent nonlinear constraints. More...
#include <CouenneProblemElem.hpp>
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). |
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.
Couenne::CouenneConstraint::CouenneConstraint | ( | expression * | body = NULL , |
|
expression * | lb = NULL , |
|||
expression * | ub = NULL | |||
) | [inline] |
Constructor.
Definition at line 50 of file CouenneProblemElem.hpp.
References COUENNE_INFINITY, lb_, and ub_.
Referenced by clone().
virtual Couenne::CouenneConstraint::~CouenneConstraint | ( | ) | [inline, virtual] |
Couenne::CouenneConstraint::CouenneConstraint | ( | const CouenneConstraint & | c, | |
Domain * | d = NULL | |||
) | [inline] |
Copy constructor.
Definition at line 74 of file CouenneProblemElem.hpp.
virtual CouenneConstraint* Couenne::CouenneConstraint::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
Cloning method.
Reimplemented in Couenne::CouennePSDcon.
Definition at line 80 of file CouenneProblemElem.hpp.
References CouenneConstraint().
virtual expression* Couenne::CouenneConstraint::Lb | ( | ) | const [inline, virtual] |
virtual expression* Couenne::CouenneConstraint::Ub | ( | ) | const [inline, virtual] |
virtual expression* Couenne::CouenneConstraint::Body | ( | ) | const [inline, virtual] |
Expression of body of constraint.
Definition at line 86 of file CouenneProblemElem.hpp.
References body_.
virtual expression* Couenne::CouenneConstraint::Body | ( | expression * | newBody | ) | [inline, virtual] |
virtual exprAux* Couenne::CouenneConstraint::standardize | ( | CouenneProblem * | ) | [virtual] |
decompose body of constraint through auxiliary variables
Reimplemented in Couenne::CouennePSDcon.
virtual void Couenne::CouenneConstraint::print | ( | std::ostream & | = std::cout |
) | [virtual] |
print constraint
Reimplemented in Couenne::CouennePSDcon.
expression* Couenne::CouenneConstraint::body_ [protected] |
Body of constraint.
Definition at line 43 of file CouenneProblemElem.hpp.
Referenced by Body(), and ~CouenneConstraint().
expression* Couenne::CouenneConstraint::lb_ [protected] |
Lower bound (expression).
Definition at line 44 of file CouenneProblemElem.hpp.
Referenced by CouenneConstraint(), Lb(), and ~CouenneConstraint().
expression* Couenne::CouenneConstraint::ub_ [protected] |
Upper bound (expression).
Definition at line 45 of file CouenneProblemElem.hpp.
Referenced by CouenneConstraint(), Ub(), and ~CouenneConstraint().