RWBagIterator(3C++) RWBagIterator(3C++)
NameRWBagIterator - Rogue Wave library class
Synopsis
#include <rw/rwbag.h>
RWBag b;
RWBagIteratorit(b);
Description
Iterator for class RWBag, which allows sequential access to all the
elements of RWBag. Note that because an RWBag is unordered, elements are
not accessed in any particular order. If an item was inserted N times
into the collection, then it will be visited N consecutive times. Like
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of the collection it is no longer valid -- continuing to use it will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.
Persistence
None
Public Constructor
RWBagIterator(const RWBag&);
Construct an iterator for an RWBag. After construction, the position of
the iterator is undefined.
Public Member Operator
virtual RWCollectable*
operator()();
Redefined from class RWIterator. Advances the iterator to the next item
and returns it. Returns nil when the end of the collection has been
reached.
Public Member Functions
virtual RWCollectable*
findNext(const RWCollectable* target);
Redefined from class RWIterator. Moves iterator to the next item which
isEqual to the object pointed to by target and returns it. Hashing is
used to find the target. If no item is found, returns nil and the
position of the iterator will be undefined.
Page 1
RWBagIterator(3C++) RWBagIterator(3C++)
virtual RWCollectable*
key() const;
Redefined from class RWIterator. Returns the item at the current
iterator position.
virtual void
reset();
Redefined from class RWIterator. Resets the iterator to its starting
state.
Page 2
