#include <CouenneExprSub.hpp>
Inheritance diagram for Couenne::exprSub:
Public Member Functions | |
exprSub (expression **al, int n=2) | |
Constructor. | |
exprSub (expression *arg0, expression *arg1) | |
Constructor with two explicit elements. | |
expression * | clone (Domain *d=NULL) const |
Cloning method. | |
std::string | printOp () const |
print operator | |
CouNumber | operator() () |
Compute difference. | |
expression * | differentiate (int index) |
Differentiation. | |
expression * | simplify () |
Simplification. | |
virtual int | Linearity () |
Get a measure of "how linear" the expression is (see CouenneTypes.h). | |
void | getBounds (expression *&, expression *&) |
Get lower and upper bound of an expression (if any). | |
void | getBounds (CouNumber &lb, CouNumber &ub) |
Get value of lower and upper bound of an expression (if any). | |
virtual exprAux * | standardize (CouenneProblem *p, bool addAux=true) |
Reduce expression in standard form, creating additional aux variables (and constraints). | |
virtual void | generateCuts (expression *, OsiCuts &, const CouenneCutGenerator *, t_chg_bounds *=NULL, int=-1, CouNumber=-COUENNE_INFINITY, CouNumber=COUENNE_INFINITY) |
Special version for linear constraints. | |
virtual enum expr_type | code () |
Code for comparisons. | |
bool | impliedBound (int, CouNumber *, CouNumber *, t_chg_bounds *, enum auxSign=expression::AUX_EQ) |
Implied bound processing. |
Definition at line 22 of file CouenneExprSub.hpp.
Couenne::exprSub::exprSub | ( | expression ** | al, | |
int | n = 2 | |||
) | [inline] |
Constructor.
Definition at line 27 of file CouenneExprSub.hpp.
Referenced by clone(), differentiate(), and getBounds().
Couenne::exprSub::exprSub | ( | expression * | arg0, | |
expression * | arg1 | |||
) | [inline] |
expression* Couenne::exprSub::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
Cloning method.
Reimplemented from Couenne::expression.
Definition at line 35 of file CouenneExprSub.hpp.
References Couenne::exprOp::clonearglist(), exprSub(), and Couenne::exprOp::nargs_.
std::string Couenne::exprSub::printOp | ( | ) | const [inline, virtual] |
print operator
Reimplemented from Couenne::exprOp.
Definition at line 39 of file CouenneExprSub.hpp.
CouNumber Couenne::exprSub::operator() | ( | ) | [inline, virtual] |
Compute difference.
Implements Couenne::expression.
Definition at line 88 of file CouenneExprSub.hpp.
References Couenne::exprOp::arglist_.
expression * exprSub::differentiate | ( | int | index | ) | [virtual] |
Differentiation.
Reimplemented from Couenne::expression.
Definition at line 75 of file exprSub.cpp.
References Couenne::exprOp::arglist_, Couenne::expression::dependsOn(), exprSub(), and Couenne::exprOp::nargs_.
expression * exprSub::simplify | ( | ) | [virtual] |
Simplification.
Reimplemented from Couenne::exprOp.
Definition at line 22 of file exprSub.cpp.
References Couenne::exprOp::arglist_, Couenne::exprOp::compare(), Couenne::CONST, COUENNE_EPS_SIMPL, Couenne::exprOp::simplify(), Couenne::exprOp::Type(), and Couenne::expression::Value().
virtual int Couenne::exprSub::Linearity | ( | ) | [inline, virtual] |
Get a measure of "how linear" the expression is (see CouenneTypes.h).
Reimplemented from Couenne::exprOp.
Definition at line 52 of file CouenneExprSub.hpp.
References Couenne::exprOp::arglist_.
void exprSub::getBounds | ( | expression *& | , | |
expression *& | ||||
) | [virtual] |
Get lower and upper bound of an expression (if any).
Reimplemented from Couenne::expression.
Definition at line 89 of file exprSub.cpp.
References Couenne::exprOp::arglist_, and exprSub().
Referenced by generateCuts(), and getBounds().
Get value of lower and upper bound of an expression (if any).
Reimplemented from Couenne::expression.
Definition at line 103 of file exprSub.cpp.
References Couenne::exprOp::arglist_, COUENNE_INFINITY, and getBounds().
exprAux * exprSub::standardize | ( | CouenneProblem * | p, | |
bool | addAux = true | |||
) | [virtual] |
Reduce expression in standard form, creating additional aux variables (and constraints).
1) an exprGroup, if only linear terms are present 2) an exprQuad, if some quadratic/bilinear terms exist
Reimplemented from Couenne::exprOp.
Definition at line 124 of file sumStandardize.cpp.
References Couenne::exprOp::arglist_.
void exprSub::generateCuts | ( | expression * | , | |
OsiCuts & | , | |||
const CouenneCutGenerator * | , | |||
t_chg_bounds * | = NULL , |
|||
int | = -1 , |
|||
CouNumber | = -COUENNE_INFINITY , |
|||
CouNumber | = COUENNE_INFINITY | |||
) | [virtual] |
Special version for linear constraints.
Reimplemented from Couenne::expression.
Definition at line 21 of file conv-exprSub.cpp.
References Couenne::exprOp::arglist_, Couenne::expression::AUX_GEQ, Couenne::expression::AUX_LEQ, COUENNE_EPS, createCut(), getBounds(), Couenne::expression::Index(), Couenne::expression::Value(), w, and x.
virtual enum expr_type Couenne::exprSub::code | ( | ) | [inline, virtual] |
Code for comparisons.
Reimplemented from Couenne::exprOp.
Definition at line 79 of file CouenneExprSub.hpp.
References Couenne::COU_EXPRSUB.
bool exprSub::impliedBound | ( | int | , | |
CouNumber * | , | |||
CouNumber * | , | |||
t_chg_bounds * | , | |||
enum | auxSign = expression::AUX_EQ | |||
) |
Implied bound processing.
Definition at line 123 of file exprSub.cpp.
References Couenne::exprOp::arglist_, Couenne::expression::AUX_GEQ, Couenne::expression::AUX_LEQ, Couenne::t_chg_bounds::CHANGED, COUENNE_EPS, COUENNE_INFINITY, Couenne::expression::Index(), Couenne::exprOp::isInteger(), Couenne::t_chg_bounds::setLower(), Couenne::t_chg_bounds::setUpper(), Couenne::updateBound(), and Couenne::expression::Value().