ILOG CPLEX C++ API 9.0 Reference Manual

ILOLAZYCONSTRAINTCALLBACK0
ILOLAZYCONSTRAINTCALLBACK0
Category
Synopsis
Description
Macro
ILOLAZYCONSTRAINTCALLBACK0(name)
ILOLAZYCONSTRAINTCALLBACK1(name, type1, x1)
ILOLAZYCONSTRAINTCALLBACK2(name, type1, x1, type2, x2)
ILOLAZYCONSTRAINTCALLBACK3(name, type1, x1, type2, x2, type3, x3)
ILOLAZYCONSTRAINTCALLBACK4(name, type1, x1, type2, x2, type3, x3, type4,
x4)
ILOLAZYCONSTRAINTCALLBACK5(name, type1, x1, type2, x2, type3, x3, type4,
x4, type5, x5)
ILOLAZYCONSTRAINTCALLBACK6(name, type1, x1, type2, x2, type3, x3, type4,
x4, type5, x5, type6, x6)
ILOLAZYCONSTRAINTCALLBACK7(name, type1, x1, type2, x2, type3, x3, type4,
x4, type5, x5, type6, x6, type7, x7)
This macro creates two things: an implementation class for a user-defined lazy
constraint callback named nameI and a function named name that creates an instance
of this class and returns an IloCplex::Callback handle for it. This function needs
to be called with an environment as first parameter followed by the n parameters
specified at the macro execution in order to create a callback. You can then use the
callback by passing it to the use method of an IloCplex object.
The class nameI that is created by the macro includes the implementation of method
makeClone as required for callbacks. The implementation of the main method must
be provided by the user in curly brackets {} following the macro invocation, like this:
ILOLAZYCONSTRAINTCALLBACKn(name, ...) {
// implementation of the callback
}
For the implementation of the callback, methods from class
IloCplex::LazyConstraintCallbackI and its parent classes can be used.
You are not obliged to use this macro to define callbacks. When the macro seems too
restrictive for your purposes, we recommend that you define a callback class directly.
Since the argument name is used to name the callback class, it is not possible to use the
same name for several callback definitions.
See Also
IloCplex::LazyConstraintCallbackI
ILOG CPLEX C++ API 9.0 REFERENCE M ANUAL 29