Initializing help system before first use

XPRBrelation

XPRBrelation   (extends XPRBexpr)

Description
Methods and operators for constructing linear or quadratic relations from expressions.
Constructors
XPRBrelation(const XPRBexpr& e, int type);
XPRBrelation(const XPRBexpr& e);
XPRBrelation(const XPRBvar& v);
Methods
int getType();
Get the relation type.
Operators
Creating relations by establishing relations between linear or quadratic expressions. The following operators are defined outside any class definition:
expr1 <= expr2
expr1 >= expr2
expr1 == expr2

Constructor detail
XPRBrelation
Synopsis
XPRBrelation(const XPRBexpr& e, int type);
XPRBrelation(const XPRBexpr& e);
XPRBrelation(const XPRBvar& v);
Arguments
e 
A linear or quadratic expression.
type 
The relation type, which must be one of:
XPRB_L 
'less than or equal to' constraint;
XPRB_G 
'greater than or equal to' constraint;
XPRB_E 
an equality;
XPRB_N 
a non-binding row (default).
v 
A BCL variable.
Description
Create a new linear or quadratic relation.
Method detail
getType
Synopsis
int getType();
Return value
XPRB_L 
'less than or equal to' inequality;
XPRB_G 
'greater than or equal to' inequality;
XPRB_E 
equality;
XPRB_N 
a non-binding row (objective function);
-1 
an error has occurred.
Description
This method returns the relation type if successful, and -1 in case of an error.

Parent Topic C++ class reference