Class IlcIntVarDeltaIterator

Definition file: ilcp/cpext.h

Include file: <ilcp/cpext.h>

The iterator class for delta-domain of integer variables.

An instance of the class IlcIntVarDeltaIterator is an iterator that traverses the values belonging to the domain-delta of a constrained integer variable (that is, an instance of IlcIntVar).

For more information, see the concepts Propagation in CP Optimizer, Domain-delta in CP Optimizer and Iterator.

Method Summary
`public`	`IlcIntVarDeltaIterator(const IlcIntVar var)`
`public IlcBool`	`ok() const`
`public IlcInt`	`operator*() const`
`public IlcIntVarDeltaIterator &`	`operator++()`

IlcIntVarDeltaIterator

public IlcIntVarDeltaIterator(const IlcIntVar var)

This constructor creates an iterator associated with var to traverse the values belonging to the domain-delta of var.

ok

public IlcBool ok() const

This member function returns IlcTrue if there is a current element and the iterator points to it. Otherwise, it returns IlcFalse.

To traverse the values belonging to the domain-delta of a constrained integer variable, use the following code:

 for (IlcIntVarDeltaIterator iter(var); iter.ok(); ++iter) {
   IlcInt val = *iter;
   // do something with val
 }

operator*

public IlcInt operator*() const

This operator returns the current element, the one to which the invoking iterator points.

operator++

public IlcIntVarDeltaIterator & operator++()

This operator advances the iterator to point to the next value in the domain-delta of the constrained integer variable.