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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /src/tools/qmap.h
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
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+/****************************************************************************
+**
+** Definition of QMap class
+**
+** Created : 990406
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the tools module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file. Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QMAP_H
+#define QMAP_H
+
+#ifndef QT_H
+#include "qglobal.h"
+#include "qshared.h"
+#include "qdatastream.h"
+#include "qpair.h"
+#include "qvaluelist.h"
+#endif // QT_H
+
+#ifndef QT_NO_STL
+#include <iterator>
+#include <map>
+#endif
+
+//#define QT_CHECK_MAP_RANGE
+
+struct Q_EXPORT QMapNodeBase
+{
+ enum Color { Red, Black };
+
+ QMapNodeBase* left;
+ QMapNodeBase* right;
+ QMapNodeBase* parent;
+
+ Color color;
+
+ QMapNodeBase* minimum() {
+ QMapNodeBase* x = this;
+ while ( x->left )
+ x = x->left;
+ return x;
+ }
+
+ QMapNodeBase* maximum() {
+ QMapNodeBase* x = this;
+ while ( x->right )
+ x = x->right;
+ return x;
+ }
+};
+
+
+template <class K, class T>
+struct QMapNode : public QMapNodeBase
+{
+ QMapNode( const K& _key, const T& _data ) { data = _data; key = _key; }
+ QMapNode( const K& _key ) { key = _key; }
+ QMapNode( const QMapNode<K,T>& _n ) { key = _n.key; data = _n.data; }
+ QMapNode() { }
+ T data;
+ K key;
+};
+
+
+template<class K, class T>
+class QMapIterator
+{
+ public:
+ /**
+ * Typedefs
+ */
+ typedef QMapNode< K, T >* NodePtr;
+#ifndef QT_NO_STL
+ typedef std::bidirectional_iterator_tag iterator_category;
+#endif
+ typedef T value_type;
+#ifndef QT_NO_STL
+ typedef ptrdiff_t difference_type;
+#else
+ typedef int difference_type;
+#endif
+ typedef T* pointer;
+ typedef T& reference;
+
+ /**
+ * Variables
+ */
+ QMapNode<K,T>* node;
+
+ /**
+ * Functions
+ */
+ QMapIterator() : node( 0 ) {}
+ QMapIterator( QMapNode<K,T>* p ) : node( p ) {}
+ QMapIterator( const QMapIterator<K,T>& it ) : node( it.node ) {}
+
+ bool operator==( const QMapIterator<K,T>& it ) const { return node == it.node; }
+ bool operator!=( const QMapIterator<K,T>& it ) const { return node != it.node; }
+ T& operator*() { return node->data; }
+ const T& operator*() const { return node->data; }
+ // UDT for T = x*
+ // T* operator->() const { return &node->data; }
+
+ const K& key() const { return node->key; }
+ T& data() { return node->data; }
+ const T& data() const { return node->data; }
+
+private:
+ int inc();
+ int dec();
+
+public:
+ QMapIterator<K,T>& operator++() {
+ inc();
+ return *this;
+ }
+
+ QMapIterator<K,T> operator++(int) {
+ QMapIterator<K,T> tmp = *this;
+ inc();
+ return tmp;
+ }
+
+ QMapIterator<K,T>& operator--() {
+ dec();
+ return *this;
+ }
+
+ QMapIterator<K,T> operator--(int) {
+ QMapIterator<K,T> tmp = *this;
+ dec();
+ return tmp;
+ }
+};
+
+template <class K, class T>
+Q_INLINE_TEMPLATES int QMapIterator<K,T>::inc()
+{
+ QMapNodeBase* tmp = node;
+ if ( tmp->right ) {
+ tmp = tmp->right;
+ while ( tmp->left )
+ tmp = tmp->left;
+ } else {
+ QMapNodeBase* y = tmp->parent;
+ while (tmp == y->right) {
+ tmp = y;
+ y = y->parent;
+ }
+ if (tmp->right != y)
+ tmp = y;
+ }
+ node = (NodePtr)tmp;
+ return 0;
+}
+
+template <class K, class T>
+Q_INLINE_TEMPLATES int QMapIterator<K,T>::dec()
+{
+ QMapNodeBase* tmp = node;
+ if (tmp->color == QMapNodeBase::Red &&
+ tmp->parent->parent == tmp ) {
+ tmp = tmp->right;
+ } else if (tmp->left != 0) {
+ QMapNodeBase* y = tmp->left;
+ while ( y->right )
+ y = y->right;
+ tmp = y;
+ } else {
+ QMapNodeBase* y = tmp->parent;
+ while (tmp == y->left) {
+ tmp = y;
+ y = y->parent;
+ }
+ tmp = y;
+ }
+ node = (NodePtr)tmp;
+ return 0;
+}
+
+template<class K, class T>
+class QMapConstIterator
+{
+ public:
+ /**
+ * Typedefs
+ */
+ typedef QMapNode< K, T >* NodePtr;
+#ifndef QT_NO_STL
+ typedef std::bidirectional_iterator_tag iterator_category;
+#endif
+ typedef T value_type;
+#ifndef QT_NO_STL
+ typedef ptrdiff_t difference_type;
+#else
+ typedef int difference_type;
+#endif
+ typedef const T* pointer;
+ typedef const T& reference;
+
+
+ /**
+ * Variables
+ */
+ QMapNode<K,T>* node;
+
+ /**
+ * Functions
+ */
+ QMapConstIterator() : node( 0 ) {}
+ QMapConstIterator( QMapNode<K,T>* p ) : node( p ) {}
+ QMapConstIterator( const QMapConstIterator<K,T>& it ) : node( it.node ) {}
+ QMapConstIterator( const QMapIterator<K,T>& it ) : node( it.node ) {}
+
+ bool operator==( const QMapConstIterator<K,T>& it ) const { return node == it.node; }
+ bool operator!=( const QMapConstIterator<K,T>& it ) const { return node != it.node; }
+ const T& operator*() const { return node->data; }
+ // UDT for T = x*
+ // const T* operator->() const { return &node->data; }
+
+ const K& key() const { return node->key; }
+ const T& data() const { return node->data; }
+
+private:
+ int inc();
+ int dec();
+
+public:
+ QMapConstIterator<K,T>& operator++() {
+ inc();
+ return *this;
+ }
+
+ QMapConstIterator<K,T> operator++(int) {
+ QMapConstIterator<K,T> tmp = *this;
+ inc();
+ return tmp;
+ }
+
+ QMapConstIterator<K,T>& operator--() {
+ dec();
+ return *this;
+ }
+
+ QMapConstIterator<K,T> operator--(int) {
+ QMapConstIterator<K,T> tmp = *this;
+ dec();
+ return tmp;
+ }
+};
+
+template <class K, class T>
+Q_INLINE_TEMPLATES int QMapConstIterator<K,T>::inc()
+{
+ QMapNodeBase* tmp = node;
+ if ( tmp->right ) {
+ tmp = tmp->right;
+ while ( tmp->left )
+ tmp = tmp->left;
+ } else {
+ QMapNodeBase* y = tmp->parent;
+ while (tmp == y->right) {
+ tmp = y;
+ y = y->parent;
+ }
+ if (tmp->right != y)
+ tmp = y;
+ }
+ node = (NodePtr)tmp;
+ return 0;
+}
+
+template <class K, class T>
+Q_INLINE_TEMPLATES int QMapConstIterator<K,T>::dec()
+{
+ QMapNodeBase* tmp = node;
+ if (tmp->color == QMapNodeBase::Red &&
+ tmp->parent->parent == tmp ) {
+ tmp = tmp->right;
+ } else if (tmp->left != 0) {
+ QMapNodeBase* y = tmp->left;
+ while ( y->right )
+ y = y->right;
+ tmp = y;
+ } else {
+ QMapNodeBase* y = tmp->parent;
+ while (tmp == y->left) {
+ tmp = y;
+ y = y->parent;
+ }
+ tmp = y;
+ }
+ node = (NodePtr)tmp;
+ return 0;
+}
+
+// ### 4.0: rename to something without Private in it. Not really internal.
+class Q_EXPORT QMapPrivateBase : public QShared
+{
+public:
+ QMapPrivateBase() {
+ node_count = 0;
+ }
+ QMapPrivateBase( const QMapPrivateBase* _map) {
+ node_count = _map->node_count;
+ }
+
+ /**
+ * Implementations of basic tree algorithms
+ */
+ void rotateLeft( QMapNodeBase* x, QMapNodeBase*& root);
+ void rotateRight( QMapNodeBase* x, QMapNodeBase*& root );
+ void rebalance( QMapNodeBase* x, QMapNodeBase*& root );
+ QMapNodeBase* removeAndRebalance( QMapNodeBase* z, QMapNodeBase*& root,
+ QMapNodeBase*& leftmost,
+ QMapNodeBase*& rightmost );
+
+ /**
+ * Variables
+ */
+ int node_count;
+};
+
+
+template <class Key, class T>
+class QMapPrivate : public QMapPrivateBase
+{
+public:
+ /**
+ * Typedefs
+ */
+ typedef QMapIterator< Key, T > Iterator;
+ typedef QMapConstIterator< Key, T > ConstIterator;
+ typedef QMapNode< Key, T > Node;
+ typedef QMapNode< Key, T >* NodePtr;
+
+ /**
+ * Functions
+ */
+ QMapPrivate();
+ QMapPrivate( const QMapPrivate< Key, T >* _map );
+ ~QMapPrivate() { clear(); delete header; }
+
+ NodePtr copy( NodePtr p );
+ void clear();
+ void clear( NodePtr p );
+
+ Iterator begin() { return Iterator( (NodePtr)(header->left ) ); }
+ Iterator end() { return Iterator( header ); }
+ ConstIterator begin() const { return ConstIterator( (NodePtr)(header->left ) ); }
+ ConstIterator end() const { return ConstIterator( header ); }
+
+ ConstIterator find(const Key& k) const;
+
+ void remove( Iterator it ) {
+ NodePtr del = (NodePtr) removeAndRebalance( it.node, header->parent, header->left, header->right );
+ delete del;
+ --node_count;
+ }
+
+#ifdef QT_QMAP_DEBUG
+ void inorder( QMapNodeBase* x = 0, int level = 0 ){
+ if ( !x )
+ x = header->parent;
+ if ( x->left )
+ inorder( x->left, level + 1 );
+ //cout << level << " Key=" << key(x) << " Value=" << ((NodePtr)x)->data << endl;
+ if ( x->right )
+ inorder( x->right, level + 1 );
+ }
+#endif
+
+#if 0
+ Iterator insertMulti(const Key& v){
+ QMapNodeBase* y = header;
+ QMapNodeBase* x = header->parent;
+ while (x != 0){
+ y = x;
+ x = ( v < key(x) ) ? x->left : x->right;
+ }
+ return insert(x, y, v);
+ }
+#endif
+
+ Iterator insertSingle( const Key& k );
+ Iterator insert( QMapNodeBase* x, QMapNodeBase* y, const Key& k );
+
+protected:
+ /**
+ * Helpers
+ */
+ const Key& key( QMapNodeBase* b ) const { return ((NodePtr)b)->key; }
+
+ /**
+ * Variables
+ */
+ NodePtr header;
+};
+
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES QMapPrivate<Key,T>::QMapPrivate() {
+ header = new Node;
+ header->color = QMapNodeBase::Red; // Mark the header
+ header->parent = 0;
+ header->left = header->right = header;
+}
+template <class Key, class T>
+Q_INLINE_TEMPLATES QMapPrivate<Key,T>::QMapPrivate( const QMapPrivate< Key, T >* _map ) : QMapPrivateBase( _map ) {
+ header = new Node;
+ header->color = QMapNodeBase::Red; // Mark the header
+ if ( _map->header->parent == 0 ) {
+ header->parent = 0;
+ header->left = header->right = header;
+ } else {
+ header->parent = copy( (NodePtr)(_map->header->parent) );
+ header->parent->parent = header;
+ header->left = header->parent->minimum();
+ header->right = header->parent->maximum();
+ }
+}
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMapPrivate<Key,T>::NodePtr QMapPrivate<Key,T>::copy( Q_TYPENAME QMapPrivate<Key,T>::NodePtr p )
+{
+ if ( !p )
+ return 0;
+ NodePtr n = new Node( *p );
+ n->color = p->color;
+ if ( p->left ) {
+ n->left = copy( (NodePtr)(p->left) );
+ n->left->parent = n;
+ } else {
+ n->left = 0;
+ }
+ if ( p->right ) {
+ n->right = copy( (NodePtr)(p->right) );
+ n->right->parent = n;
+ } else {
+ n->right = 0;
+ }
+ return n;
+}
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES void QMapPrivate<Key,T>::clear()
+{
+ clear( (NodePtr)(header->parent) );
+ header->color = QMapNodeBase::Red;
+ header->parent = 0;
+ header->left = header->right = header;
+ node_count = 0;
+}
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES void QMapPrivate<Key,T>::clear( Q_TYPENAME QMapPrivate<Key,T>::NodePtr p )
+{
+ while ( p != 0 ) {
+ clear( (NodePtr)p->right );
+ NodePtr y = (NodePtr)p->left;
+ delete p;
+ p = y;
+ }
+}
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMapPrivate<Key,T>::ConstIterator QMapPrivate<Key,T>::find(const Key& k) const
+{
+ QMapNodeBase* y = header; // Last node
+ QMapNodeBase* x = header->parent; // Root node.
+
+ while ( x != 0 ) {
+ // If as k <= key(x) go left
+ if ( !( key(x) < k ) ) {
+ y = x;
+ x = x->left;
+ } else {
+ x = x->right;
+ }
+ }
+
+ // Was k bigger/smaller then the biggest/smallest
+ // element of the tree ? Return end()
+ if ( y == header || k < key(y) )
+ return ConstIterator( header );
+ return ConstIterator( (NodePtr)y );
+}
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMapPrivate<Key,T>::Iterator QMapPrivate<Key,T>::insertSingle( const Key& k )
+{
+ // Search correct position in the tree
+ QMapNodeBase* y = header;
+ QMapNodeBase* x = header->parent;
+ bool result = TRUE;
+ while ( x != 0 ) {
+ result = ( k < key(x) );
+ y = x;
+ x = result ? x->left : x->right;
+ }
+ // Get iterator on the last not empty one
+ Iterator j( (NodePtr)y );
+ if ( result ) {
+ // Smaller then the leftmost one ?
+ if ( j == begin() ) {
+ return insert(x, y, k );
+ } else {
+ // Perhaps daddy is the right one ?
+ --j;
+ }
+ }
+ // Really bigger ?
+ if ( (j.node->key) < k )
+ return insert(x, y, k );
+ // We are going to replace a node
+ return j;
+}
+
+
+template <class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMapPrivate<Key,T>::Iterator QMapPrivate<Key,T>::insert( QMapNodeBase* x, QMapNodeBase* y, const Key& k )
+{
+ NodePtr z = new Node( k );
+ if (y == header || x != 0 || k < key(y) ) {
+ y->left = z; // also makes leftmost = z when y == header
+ if ( y == header ) {
+ header->parent = z;
+ header->right = z;
+ } else if ( y == header->left )
+ header->left = z; // maintain leftmost pointing to min node
+ } else {
+ y->right = z;
+ if ( y == header->right )
+ header->right = z; // maintain rightmost pointing to max node
+ }
+ z->parent = y;
+ z->left = 0;
+ z->right = 0;
+ rebalance( z, header->parent );
+ ++node_count;
+ return Iterator(z);
+}
+
+
+#ifdef QT_CHECK_RANGE
+# if !defined( QT_NO_DEBUG ) && defined( QT_CHECK_MAP_RANGE )
+# define QT_CHECK_INVALID_MAP_ELEMENT if ( empty() ) qWarning( "QMap: Warning invalid element" )
+# define QT_CHECK_INVALID_MAP_ELEMENT_FATAL Q_ASSERT( !empty() );
+# else
+# define QT_CHECK_INVALID_MAP_ELEMENT
+# define QT_CHECK_INVALID_MAP_ELEMENT_FATAL
+# endif
+#else
+# define QT_CHECK_INVALID_MAP_ELEMENT
+# define QT_CHECK_INVALID_MAP_ELEMENT_FATAL
+#endif
+
+template <class T> class QDeepCopy;
+
+template<class Key, class T>
+class QMap
+{
+public:
+ /**
+ * Typedefs
+ */
+ typedef Key key_type;
+ typedef T mapped_type;
+ typedef QPair<const key_type, mapped_type> value_type;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
+ typedef value_type& reference;
+ typedef const value_type& const_reference;
+#ifndef QT_NO_STL
+ typedef ptrdiff_t difference_type;
+#else
+ typedef int difference_type;
+#endif
+ typedef size_t size_type;
+ typedef QMapIterator<Key,T> iterator;
+ typedef QMapConstIterator<Key,T> const_iterator;
+ typedef QPair<iterator,bool> insert_pair;
+
+ typedef QMapIterator< Key, T > Iterator;
+ typedef QMapConstIterator< Key, T > ConstIterator;
+ typedef T ValueType;
+ typedef QMapPrivate< Key, T > Priv;
+
+ /**
+ * API
+ */
+ QMap()
+ {
+ sh = new QMapPrivate< Key, T >;
+ }
+ QMap( const QMap<Key,T>& m )
+ {
+ sh = m.sh; sh->ref();
+ }
+
+#ifndef QT_NO_STL
+ QMap( const std::map<Key,T>& m )
+ {
+ sh = new QMapPrivate<Key,T>;
+ Q_TYPENAME std::map<Key,T>::const_iterator it = m.begin();
+ for ( ; it != m.end(); ++it ) {
+ value_type p( (*it).first, (*it).second );
+ insert( p );
+ }
+ }
+#endif
+ ~QMap()
+ {
+ if ( sh->deref() )
+ delete sh;
+ }
+ QMap<Key,T>& operator= ( const QMap<Key,T>& m );
+#ifndef QT_NO_STL
+ QMap<Key,T>& operator= ( const std::map<Key,T>& m )
+ {
+ clear();
+ Q_TYPENAME std::map<Key,T>::const_iterator it = m.begin();
+ for ( ; it != m.end(); ++it ) {
+ value_type p( (*it).first, (*it).second );
+ insert( p );
+ }
+ return *this;
+ }
+#endif
+
+ iterator begin() { detach(); return sh->begin(); }
+ iterator end() { detach(); return sh->end(); }
+ const_iterator begin() const { return ((const Priv*)sh)->begin(); }
+ const_iterator end() const { return ((const Priv*)sh)->end(); }
+ const_iterator constBegin() const { return begin(); }
+ const_iterator constEnd() const { return end(); }
+
+ iterator replace( const Key& k, const T& v )
+ {
+ remove( k );
+ return insert( k, v );
+ }
+
+ size_type size() const
+ {
+ return sh->node_count;
+ }
+ bool empty() const
+ {
+ return sh->node_count == 0;
+ }
+ QPair<iterator,bool> insert( const value_type& x );
+
+ void erase( iterator it )
+ {
+ detach();
+ sh->remove( it );
+ }
+ void erase( const key_type& k );
+ size_type count( const key_type& k ) const;
+ T& operator[] ( const Key& k );
+ void clear();
+
+ iterator find ( const Key& k )
+ {
+ detach();
+ return iterator( sh->find( k ).node );
+ }
+ const_iterator find ( const Key& k ) const { return sh->find( k ); }
+
+ const T& operator[] ( const Key& k ) const
+ { QT_CHECK_INVALID_MAP_ELEMENT; return sh->find( k ).data(); }
+ bool contains ( const Key& k ) const
+ { return find( k ) != end(); }
+ //{ return sh->find( k ) != ((const Priv*)sh)->end(); }
+
+ size_type count() const { return sh->node_count; }
+
+ QValueList<Key> keys() const {
+ QValueList<Key> r;
+ for (const_iterator i=begin(); i!=end(); ++i)
+ r.append(i.key());
+ return r;
+ }
+
+ QValueList<T> values() const {
+ QValueList<T> r;
+ for (const_iterator i=begin(); i!=end(); ++i)
+ r.append(*i);
+ return r;
+ }
+
+ bool isEmpty() const { return sh->node_count == 0; }
+
+ iterator insert( const Key& key, const T& value, bool overwrite = TRUE );
+ void remove( iterator it ) { detach(); sh->remove( it ); }
+ void remove( const Key& k );
+
+#if defined(Q_FULL_TEMPLATE_INSTANTIATION)
+ bool operator==( const QMap<Key,T>& ) const { return FALSE; }
+#ifndef QT_NO_STL
+ bool operator==( const std::map<Key,T>& ) const { return FALSE; }
+#endif
+#endif
+
+protected:
+ /**
+ * Helpers
+ */
+ void detach() { if ( sh->count > 1 ) detachInternal(); }
+
+ Priv* sh;
+private:
+ void detachInternal();
+
+ friend class QDeepCopy< QMap<Key,T> >;
+};
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES QMap<Key,T>& QMap<Key,T>::operator= ( const QMap<Key,T>& m )
+{
+ m.sh->ref();
+ if ( sh->deref() )
+ delete sh;
+ sh = m.sh;
+ return *this;
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMap<Key,T>::insert_pair QMap<Key,T>::insert( const Q_TYPENAME QMap<Key,T>::value_type& x )
+{
+ detach();
+ size_type n = size();
+ iterator it = sh->insertSingle( x.first );
+ bool inserted = FALSE;
+ if ( n < size() ) {
+ inserted = TRUE;
+ it.data() = x.second;
+ }
+ return QPair<iterator,bool>( it, inserted );
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES void QMap<Key,T>::erase( const Key& k )
+{
+ detach();
+ iterator it( sh->find( k ).node );
+ if ( it != end() )
+ sh->remove( it );
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMap<Key,T>::size_type QMap<Key,T>::count( const Key& k ) const
+{
+ const_iterator it( sh->find( k ).node );
+ if ( it != end() ) {
+ size_type c = 0;
+ while ( it != end() ) {
+ ++it;
+ ++c;
+ }
+ return c;
+ }
+ return 0;
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES T& QMap<Key,T>::operator[] ( const Key& k )
+{
+ detach();
+ QMapNode<Key,T>* p = sh->find( k ).node;
+ if ( p != sh->end().node )
+ return p->data;
+ return insert( k, T() ).data();
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES void QMap<Key,T>::clear()
+{
+ if ( sh->count == 1 )
+ sh->clear();
+ else {
+ sh->deref();
+ sh = new QMapPrivate<Key,T>;
+ }
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES Q_TYPENAME QMap<Key,T>::iterator QMap<Key,T>::insert( const Key& key, const T& value, bool overwrite )
+{
+ detach();
+ size_type n = size();
+ iterator it = sh->insertSingle( key );
+ if ( overwrite || n < size() )
+ it.data() = value;
+ return it;
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES void QMap<Key,T>::remove( const Key& k )
+{
+ detach();
+ iterator it( sh->find( k ).node );
+ if ( it != end() )
+ sh->remove( it );
+}
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES void QMap<Key,T>::detachInternal()
+{
+ sh->deref(); sh = new QMapPrivate<Key,T>( sh );
+}
+
+
+#ifndef QT_NO_DATASTREAM
+template<class Key, class T>
+Q_INLINE_TEMPLATES QDataStream& operator>>( QDataStream& s, QMap<Key,T>& m ) {
+ m.clear();
+ Q_UINT32 c;
+ s >> c;
+ for( Q_UINT32 i = 0; i < c; ++i ) {
+ Key k; T t;
+ s >> k >> t;
+ m.insert( k, t );
+ if ( s.atEnd() )
+ break;
+ }
+ return s;
+}
+
+
+template<class Key, class T>
+Q_INLINE_TEMPLATES QDataStream& operator<<( QDataStream& s, const QMap<Key,T>& m ) {
+ s << (Q_UINT32)m.size();
+ QMapConstIterator<Key,T> it = m.begin();
+ for( ; it != m.end(); ++it )
+ s << it.key() << it.data();
+ return s;
+}
+#endif
+
+#define Q_DEFINED_QMAP
+#include "qwinexport.h"
+#endif // QMAP_H