RWHashTableConstIterator

Module:  Essential Tools Module   Group:  RWCollectable Classes

RWHashTableConstIterator      RWConstIterator

• Local Index
• Synopsis
• Description
• Persistence
• Public Constructor
• Public Member Operator
• Public Member Functions

Members

findNext() key()

operator()() reset()

RWHashTableConstIterator()

#include <rw/hashtab.h>
RWHashTable h;
RWHashTableConstIterator it(h);

One of two iterators for class RWHashTable. As a const iterator, it not change anything in the underlying data structure.

This iterator allows sequential access to all the elements of RWHashTable. Note that because an RWHashTable is unordered, elements are not accessed in any particular order.

As with all Rogue Wave iterators, the "current item" is undefined immediately after construction -- you must define it by using operator() or some other (valid) operation.

Once the iterator has advanced beyond the end of the collection it is no longer valid -- continuing to use it will bring undefined results.

None

RWHashTableConstIterator(RWHashTable&);

Construct a const iterator for an RWHashTable. After construction, the position of the iterator is undefined.

virtual const RWCollectable*
operator()(); 

Redefined from class RWConstIterator. Advances the iterator to the next item and returns it. Returns nil when the end of the collection is reached.

virtual const RWCollectable*
findNext(const RWCollectable* target);

Redefined from class RWConstIterator. Moves iterator to the next item which isEqual to the item pointed to by target and returns it.

virtual const RWCollectable*
key() const;

Redefined from class RWConstIterator. Returns the item at the current iterator position.

virtual void
reset();

Redefined from class RWConstIterator. Resets the iterator to its starting state.

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