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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQMapConstIterator Class Reference< / h1 >
< p > The TQMapConstIterator class provides an iterator for TQMap.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qmap-h.html" > ntqmap.h< / a > > < / tt >
< p > < a href = "qmapconstiterator-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > typedef std::bidirectional_iterator_tag < a href = "#iterator_category" > < b > iterator_category< / b > < / a > < / li >
< li class = fn > typedef T < a href = "#value_type" > < b > value_type< / b > < / a > < / li >
< li class = fn > typedef const T * < a href = "#pointer" > < b > pointer< / b > < / a > < / li >
< li class = fn > typedef const T & < a href = "#reference" > < b > reference< / b > < / a > < / li >
< li class = fn > < a href = "#TQMapConstIterator" > < b > TQMapConstIterator< / b > < / a > ()< / li >
< li class = fn > < a href = "#TQMapConstIterator-2" > < b > TQMapConstIterator< / b > < / a > ( TQMapNode< K, T> * p )< / li >
< li class = fn > < a href = "#TQMapConstIterator-3" > < b > TQMapConstIterator< / b > < / a > ( const TQMapConstIterator< K, T> & it )< / li >
< li class = fn > < a href = "#TQMapConstIterator-4" > < b > TQMapConstIterator< / b > < / a > ( const TQMapIterator< K, T> & it )< / li >
< li class = fn > bool < a href = "#operator-eq-eq" > < b > operator==< / b > < / a > ( const TQMapConstIterator< K, T> & it ) const< / li >
< li class = fn > bool < a href = "#operator!-eq" > < b > operator!=< / b > < / a > ( const TQMapConstIterator< K, T> & it ) const< / li >
< li class = fn > const T & < a href = "#operator*" > < b > operator*< / b > < / a > () const< / li >
< li class = fn > const K & < a href = "#key" > < b > key< / b > < / a > () const< / li >
< li class = fn > const T & < a href = "#data" > < b > data< / b > < / a > () const< / li >
< li class = fn > TQMapConstIterator< K, T> & < a href = "#operator++" > < b > operator++< / b > < / a > ()< / li >
< li class = fn > TQMapConstIterator< K, T> < a href = "#operator++-2" > < b > operator++< / b > < / a > ( int )< / li >
< li class = fn > TQMapConstIterator< K, T> & < a href = "#operator--" > < b > operator--< / b > < / a > ()< / li >
< li class = fn > TQMapConstIterator< K, T> < a href = "#operator---2" > < b > operator--< / b > < / a > ( int )< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQMapConstIterator class provides an iterator for < a href = "ntqmap.html" > TQMap< / a > .
< p >
< p > In contrast to < a href = "qmapiterator.html" > TQMapIterator< / a > , this class is used to iterate over a
const map. It does not allow you to modify the values of the map
because this would break the const semantics.
< p > For more information on TQMap iterators, see < a href = "qmapiterator.html" > TQMapIterator< / a > and
the < a href = "ntqmap.html#qmap-eg" > TQMap example< / a > .
< p > < p > See also < a href = "ntqmap.html" > TQMap< / a > , < a href = "qmapiterator.html" > TQMapIterator< / a > , < a href = "ntqtl.html" > TQt Template Library Classes< / a > , and < a href = "tools.html" > Non-GUI Classes< / a > .
< hr > < h2 > Member Type Documentation< / h2 >
< h3 class = fn > < a name = "iterator_category" > < / a > TQMapConstIterator::iterator_category< / h3 >
The type of iterator category, < tt > std::bidirectional_iterator_tag< / tt > .
< h3 class = fn > < a name = "pointer" > < / a > TQMapConstIterator::pointer< / h3 >
Const pointer to value_type.
< h3 class = fn > < a name = "reference" > < / a > TQMapConstIterator::reference< / h3 >
Const reference to value_type.
< h3 class = fn > < a name = "value_type" > < / a > TQMapConstIterator::value_type< / h3 >
The type of const value.
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQMapConstIterator" > < / a > TQMapConstIterator::TQMapConstIterator ()
< / h3 >
< p > Constructs an uninitialized iterator.
< h3 class = fn > < a name = "TQMapConstIterator-2" > < / a > TQMapConstIterator::TQMapConstIterator ( TQMapNode< K, T> * p )
< / h3 >
< p > Constructs an iterator starting at node < em > p< / em > .
< h3 class = fn > < a name = "TQMapConstIterator-3" > < / a > TQMapConstIterator::TQMapConstIterator ( const < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> & it )
< / h3 >
< p > Constructs a copy of the iterator, < em > it< / em > .
< h3 class = fn > < a name = "TQMapConstIterator-4" > < / a > TQMapConstIterator::TQMapConstIterator ( const < a href = "qmapiterator.html" > TQMapIterator< / a > < K, T> & it )
< / h3 >
< p > Constructs a copy of the iterator, < em > it< / em > .
< h3 class = fn > const T & < a name = "data" > < / a > TQMapConstIterator::data () const
< / h3 >
< p > Returns a const reference to the current item's data.
< h3 class = fn > const K & < a name = "key" > < / a > TQMapConstIterator::key () const
< / h3 >
< p > Returns a const reference to the current item's key.
< h3 class = fn > bool < a name = "operator!-eq" > < / a > TQMapConstIterator::operator!= ( const < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> & it ) const
< / h3 >
< p > Compares the iterator to the < em > it< / em > iterator and returns FALSE if
they point to the same item; otherwise returns TRUE.
< h3 class = fn > const T & < a name = "operator*" > < / a > TQMapConstIterator::operator* () const
< / h3 >
< p > Dereference operator. Returns a const reference to the current
item's data. The same as < a href = "#data" > data< / a > ().
< h3 class = fn > < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> & < a name = "operator++" > < / a > TQMapConstIterator::operator++ ()
< / h3 >
< p > Prefix ++ makes the succeeding item current and returns an
iterator pointing to the new current item. The iterator cannot
check whether it reached the end of the map. Incrementing the
iterator returned by end() causes undefined results.
< h3 class = fn > < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> < a name = "operator++-2" > < / a > TQMapConstIterator::operator++ ( int )
< / h3 >
< p > This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
< p > Postfix ++ makes the succeeding item current and returns an
iterator pointing to the new current item. The iterator cannot
check whether it reached the end of the map. Incrementing the
iterator returned by end() causes undefined results.
< h3 class = fn > < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> & < a name = "operator--" > < / a > TQMapConstIterator::operator-- ()
< / h3 >
< p > Prefix -- makes the previous item current and returns an iterator
pointing to the new current item. The iterator cannot check
whether it reached the beginning of the map. Decrementing the
iterator returned by begin() causes undefined results.
< h3 class = fn > < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> < a name = "operator---2" > < / a > TQMapConstIterator::operator-- ( int )
< / h3 >
< p > This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
< p > Postfix -- makes the previous item current and returns an iterator
pointing to the new current item. The iterator cannot check
whether it reached the beginning of the map. Decrementing the
iterator returned by begin() causes undefined results.
< h3 class = fn > bool < a name = "operator-eq-eq" > < / a > TQMapConstIterator::operator== ( const < a href = "qmapconstiterator.html" > TQMapConstIterator< / a > < K, T> & it ) const
< / h3 >
< p > Compares the iterator to the < em > it< / em > iterator and returns TRUE if
they point to the same item; otherwise returns FALSE.
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