RWTPtrSetConstIterator<T,C,A>

Module:  Essential Tools Module   Group:  STL-based Collection Classes

Does not inherit

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Members

container() key()

operator()() operator++()

reset() RWTPtrSetConstIterator<T,C,A>()

#include <rw/tpset.h>
template <class T, class C, class A=std::allocator<T*> >
class  RWTPtrSetConstIterator

RWTPtrSetConstIterator provides a const iterator interface to standard library-based RWTPtrSet collections. A const iterator does not modify any information in the underlying data structure.

The order of iteration over an RWTPtrSet is dependent on the comparator object supplied as applied to the values stored in the container.

The current item referenced by this iterator is undefined after construction or after a call to reset(). The iterator becomes valid after being advanced with either a preincrement or operator().

For both operator++ and operator(), iterating past the last element returns a value equivalent to boolean false. Continued increments return a value equivalent to false until reset() is called.

The value type must have operator== and operator< defined. This requirement is imposed by the C++ Standard Library.

None

RWTPtrSetConstIterator<T,C,A>(const RWTPtrSet<T,C,A>& s);

Creates an iterator for the set s. The iterator begins in an undefined state and must be advanced before the first element is accessible

const T*
operator()();

Advances self to the next element, dereferences the resulting iterator and returns its value. If the iterator has advanced past the last item in the container, the element returned is a nil pointer equivalent to boolean false.

bool
operator++();

Advances self to the next element. If the iterator has been reset or just created self now references the first element. If, before iteration, self referenced the last association in the set, self now references an undefined value and a value equivalent to false is returned. Otherwise, a value equivalent to true is returned. Note: no post-increment operator is provided.

const RWTPtrSet<T,C,A>*
container() const; 

Returns a pointer to the collection being iterated over.

const T*
key() const; 

Returns the stored value pointed to by self. Undefined if self is not referencing a value within the set.

void
reset();
void
reset(RWTPtrSet<T,C,A>& h);

Resets the iterator so that after being advanced it points to the first element of the collection. Using reset() with no argument resets the iterator on the current container. Supplying a RWTPtrSet to reset() resets the iterator on the new container.

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