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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/corelib/tools/qvector.cpp
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvector.h"
+#include "qtools_p.h"
+#include <string.h>
+
+QT_BEGIN_NAMESPACE
+
+static inline int alignmentThreshold()
+{
+ // malloc on 32-bit platforms should return pointers that are 8-byte aligned or more
+ // while on 64-bit platforms they should be 16-byte aligned or more
+ return 2 * sizeof(void*);
+}
+
+QVectorData QVectorData::shared_null = { Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0, true, false, 0 };
+
+QVectorData *QVectorData::malloc(int sizeofTypedData, int size, int sizeofT, QVectorData *init)
+{
+ QVectorData* p = (QVectorData *)qMalloc(sizeofTypedData + (size - 1) * sizeofT);
+ Q_CHECK_PTR(p);
+ ::memcpy(p, init, sizeofTypedData + (qMin(size, init->alloc) - 1) * sizeofT);
+ return p;
+}
+
+QVectorData *QVectorData::allocate(int size, int alignment)
+{
+ return static_cast<QVectorData *>(alignment > alignmentThreshold() ? qMallocAligned(size, alignment) : qMalloc(size));
+}
+
+QVectorData *QVectorData::reallocate(QVectorData *x, int newsize, int oldsize, int alignment)
+{
+ if (alignment > alignmentThreshold())
+ return static_cast<QVectorData *>(qReallocAligned(x, newsize, oldsize, alignment));
+ return static_cast<QVectorData *>(qRealloc(x, newsize));
+}
+
+void QVectorData::free(QVectorData *x, int alignment)
+{
+ if (alignment > alignmentThreshold())
+ qFreeAligned(x);
+ else
+ qFree(x);
+}
+
+int QVectorData::grow(int sizeofTypedData, int size, int sizeofT, bool excessive)
+{
+ if (excessive)
+ return size + size / 2;
+ return qAllocMore(size * sizeofT, sizeofTypedData - sizeofT) / sizeofT;
+}
+
+/*!
+ \class QVector
+ \brief The QVector class is a template class that provides a dynamic array.
+
+ \ingroup tools
+ \ingroup shared
+
+ \reentrant
+
+ QVector\<T\> is one of Qt's generic \l{container classes}. It
+ stores its items in adjacent memory locations and provides fast
+ index-based access.
+
+ QList\<T\>, QLinkedList\<T\>, and QVarLengthArray\<T\> provide
+ similar functionality. Here's an overview:
+
+ \list
+ \i For most purposes, QList is the right class to use. Operations
+ like prepend() and insert() are usually faster than with
+ QVector because of the way QList stores its items in memory
+ (see \l{Algorithmic Complexity} for details),
+ and its index-based API is more convenient than QLinkedList's
+ iterator-based API. It also expands to less code in your
+ executable.
+ \i If you need a real linked list, with guarantees of \l{constant
+ time} insertions in the middle of the list and iterators to
+ items rather than indexes, use QLinkedList.
+ \i If you want the items to occupy adjacent memory positions, or
+ if your items are larger than a pointer and you want to avoid
+ the overhead of allocating them on the heap individually at
+ insertion time, then use QVector.
+ \i If you want a low-level variable-size array, QVarLengthArray
+ may be sufficient.
+ \endlist
+
+ Here's an example of a QVector that stores integers and a QVector
+ that stores QString values:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 0
+
+ QVector stores a vector (or array) of items. Typically, vectors
+ are created with an initial size. For example, the following code
+ constructs a QVector with 200 elements:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 1
+
+ The elements are automatically initialized with a
+ \l{default-constructed value}. If you want to initialize the
+ vector with a different value, pass that value as the second
+ argument to the constructor:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 2
+
+ You can also call fill() at any time to fill the vector with a
+ value.
+
+ QVector uses 0-based indexes, just like C++ arrays. To access the
+ item at a particular index position, you can use operator[](). On
+ non-const vectors, operator[]() returns a reference to the item
+ that can be used on the left side of an assignment:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 3
+
+ For read-only access, an alternative syntax is to use at():
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 4
+
+ at() can be faster than operator[](), because it never causes a
+ \l{deep copy} to occur.
+
+ Another way to access the data stored in a QVector is to call
+ data(). The function returns a pointer to the first item in the
+ vector. You can use the pointer to directly access and modify the
+ elements stored in the vector. The pointer is also useful if you
+ need to pass a QVector to a function that accepts a plain C++
+ array.
+
+ If you want to find all occurrences of a particular value in a
+ vector, use indexOf() or lastIndexOf(). The former searches
+ forward starting from a given index position, the latter searches
+ backward. Both return the index of the matching item if they found
+ one; otherwise, they return -1. For example:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 5
+
+ If you simply want to check whether a vector contains a
+ particular value, use contains(). If you want to find out how
+ many times a particular value occurs in the vector, use count().
+
+ QVector provides these basic functions to add, move, and remove
+ items: insert(), replace(), remove(), prepend(), append(). With
+ the exception of append() and replace(), these functions can be slow
+ (\l{linear time}) for large vectors, because they require moving many
+ items in the vector by one position in memory. If you want a container
+ class that provides fast insertion/removal in the middle, use
+ QList or QLinkedList instead.
+
+ Unlike plain C++ arrays, QVectors can be resized at any time by
+ calling resize(). If the new size is larger than the old size,
+ QVector might need to reallocate the whole vector. QVector tries
+ to reduce the number of reallocations by preallocating up to twice
+ as much memory as the actual data needs.
+
+ If you know in advance approximately how many items the QVector
+ will contain, you can call reserve(), asking QVector to
+ preallocate a certain amount of memory. You can also call
+ capacity() to find out how much memory QVector actually
+ allocated.
+
+ Note that using non-const operators and functions can cause
+ QVector to do a deep copy of the data. This is due to \l{implicit sharing}.
+
+ QVector's value type must be an \l{assignable data type}. This
+ covers most data types that are commonly used, but the compiler
+ won't let you, for example, store a QWidget as a value; instead,
+ store a QWidget *. A few functions have additional requirements;
+ for example, indexOf() and lastIndexOf() expect the value type to
+ support \c operator==(). These requirements are documented on a
+ per-function basis.
+
+ Like the other container classes, QVector provides \l{Java-style
+ iterators} (QVectorIterator and QMutableVectorIterator) and
+ \l{STL-style iterators} (QVector::const_iterator and
+ QVector::iterator). In practice, these are rarely used, because
+ you can use indexes into the QVector.
+
+ In addition to QVector, Qt also provides QVarLengthArray, a very
+ low-level class with little functionality that is optimized for
+ speed.
+
+ QVector does \e not support inserting, prepending, appending or replacing
+ with references to its own values. Doing so will cause your application to
+ abort with an error message.
+
+ \sa QVectorIterator, QMutableVectorIterator, QList, QLinkedList
+*/
+
+/*!
+ \fn QVector<T> QVector::mid(int pos, int length = -1) const
+
+ Returns a vector whose elements are copied from this vector,
+ starting at position \a pos. If \a length is -1 (the default), all
+ elements after \a pos are copied; otherwise \a length elements (or
+ all remaining elements if there are less than \a length elements)
+ are copied.
+*/
+
+
+/*! \fn QVector::QVector()
+
+ Constructs an empty vector.
+
+ \sa resize()
+*/
+
+/*! \fn QVector::QVector(int size)
+
+ Constructs a vector with an initial size of \a size elements.
+
+ The elements are initialized with a \l{default-constructed
+ value}.
+
+ \sa resize()
+*/
+
+/*! \fn QVector::QVector(int size, const T &value)
+
+ Constructs a vector with an initial size of \a size elements.
+ Each element is initialized with \a value.
+
+ \sa resize(), fill()
+*/
+
+/*! \fn QVector::QVector(const QVector<T> &other)
+
+ Constructs a copy of \a other.
+
+ This operation takes \l{constant time}, because QVector is
+ \l{implicitly shared}. This makes returning a QVector from a
+ function very fast. If a shared instance is modified, it will be
+ copied (copy-on-write), and that takes \l{linear time}.
+
+ \sa operator=()
+*/
+
+/*! \fn QVector::QVector(std::initializer_list<T> args)
+ \since 4.8
+
+ Construct a vector from a std::initilizer_list.
+
+ This constructor is only enabled if the compiler supports C++0x
+*/
+
+
+/*! \fn QVector::~QVector()
+
+ Destroys the vector.
+*/
+
+/*! \fn QVector<T> &QVector::operator=(const QVector<T> &other)
+
+ Assigns \a other to this vector and returns a reference to this
+ vector.
+*/
+
+/*! \fn void QVector::swap(QVector<T> &other)
+ \since 4.8
+
+ Swaps vector \a other with this vector. This operation is very fast and
+ never fails.
+*/
+
+/*! \fn bool QVector::operator==(const QVector<T> &other) const
+
+ Returns true if \a other is equal to this vector; otherwise
+ returns false.
+
+ Two vectors are considered equal if they contain the same values
+ in the same order.
+
+ This function requires the value type to have an implementation
+ of \c operator==().
+
+ \sa operator!=()
+*/
+
+/*! \fn bool QVector::operator!=(const QVector<T> &other) const
+
+ Returns true if \a other is not equal to this vector; otherwise
+ returns false.
+
+ Two vectors are considered equal if they contain the same values
+ in the same order.
+
+ This function requires the value type to have an implementation
+ of \c operator==().
+
+ \sa operator==()
+*/
+
+/*! \fn int QVector::size() const
+
+ Returns the number of items in the vector.
+
+ \sa isEmpty(), resize()
+*/
+
+/*! \fn bool QVector::isEmpty() const
+
+ Returns true if the vector has size 0; otherwise returns false.
+
+ \sa size(), resize()
+*/
+
+/*! \fn void QVector::resize(int size)
+
+ Sets the size of the vector to \a size. If \a size is greater than the
+ current size, elements are added to the end; the new elements are
+ initialized with a \l{default-constructed value}. If \a size is less
+ than the current size, elements are removed from the end.
+
+ \sa size()
+*/
+
+/*! \fn int QVector::capacity() const
+
+ Returns the maximum number of items that can be stored in the
+ vector without forcing a reallocation.
+
+ The sole purpose of this function is to provide a means of fine
+ tuning QVector's memory usage. In general, you will rarely ever
+ need to call this function. If you want to know how many items are
+ in the vector, call size().
+
+ \sa reserve(), squeeze()
+*/
+
+/*! \fn void QVector::reserve(int size)
+
+ Attempts to allocate memory for at least \a size elements. If you
+ know in advance how large the vector will be, you can call this
+ function, and if you call resize() often you are likely to get
+ better performance. If \a size is an underestimate, the worst
+ that will happen is that the QVector will be a bit slower.
+
+ The sole purpose of this function is to provide a means of fine
+ tuning QVector's memory usage. In general, you will rarely ever
+ need to call this function. If you want to change the size of the
+ vector, call resize().
+
+ \sa squeeze(), capacity()
+*/
+
+/*! \fn void QVector::squeeze()
+
+ Releases any memory not required to store the items.
+
+ The sole purpose of this function is to provide a means of fine
+ tuning QVector's memory usage. In general, you will rarely ever
+ need to call this function.
+
+ \sa reserve(), capacity()
+*/
+
+/*! \fn void QVector::detach()
+
+ \internal
+*/
+
+/*! \fn bool QVector::isDetached() const
+
+ \internal
+*/
+
+/*! \fn void QVector::setSharable(bool sharable)
+
+ \internal
+*/
+
+/*! \fn bool QVector::isSharedWith(const QVector<T> &other) const
+
+ \internal
+*/
+
+/*! \fn T *QVector::data()
+
+ Returns a pointer to the data stored in the vector. The pointer
+ can be used to access and modify the items in the vector.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 6
+
+ The pointer remains valid as long as the vector isn't
+ reallocated.
+
+ This function is mostly useful to pass a vector to a function
+ that accepts a plain C++ array.
+
+ \sa constData(), operator[]()
+*/
+
+/*! \fn const T *QVector::data() const
+
+ \overload
+*/
+
+/*! \fn const T *QVector::constData() const
+
+ Returns a const pointer to the data stored in the vector. The
+ pointer can be used to access the items in the vector.
+ The pointer remains valid as long as the vector isn't
+ reallocated.
+
+ This function is mostly useful to pass a vector to a function
+ that accepts a plain C++ array.
+
+ \sa data(), operator[]()
+*/
+
+/*! \fn void QVector::clear()
+
+ Removes all the elements from the vector and releases the memory used by
+ the vector.
+*/
+
+/*! \fn const T &QVector::at(int i) const
+
+ Returns the item at index position \a i in the vector.
+
+ \a i must be a valid index position in the vector (i.e., 0 <= \a
+ i < size()).
+
+ \sa value(), operator[]()
+*/
+
+/*! \fn T &QVector::operator[](int i)
+
+ Returns the item at index position \a i as a modifiable reference.
+
+ \a i must be a valid index position in the vector (i.e., 0 <= \a i
+ < size()).
+
+ Note that using non-const operators can cause QVector to do a deep
+ copy.
+
+ \sa at(), value()
+*/
+
+/*! \fn const T &QVector::operator[](int i) const
+
+ \overload
+
+ Same as at(\a i).
+*/
+
+/*!
+ \fn void QVector::append(const T &value)
+
+ Inserts \a value at the end of the vector.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 7
+
+ This is the same as calling resize(size() + 1) and assigning \a
+ value to the new last element in the vector.
+
+ This operation is relatively fast, because QVector typically
+ allocates more memory than necessary, so it can grow without
+ reallocating the entire vector each time.
+
+ \sa operator<<(), prepend(), insert()
+*/
+
+/*! \fn void QVector::prepend(const T &value)
+
+ Inserts \a value at the beginning of the vector.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 8
+
+ This is the same as vector.insert(0, \a value).
+
+ For large vectors, this operation can be slow (\l{linear time}),
+ because it requires moving all the items in the vector by one
+ position further in memory. If you want a container class that
+ provides a fast prepend() function, use QList or QLinkedList
+ instead.
+
+ \sa append(), insert()
+*/
+
+/*! \fn void QVector::insert(int i, const T &value)
+
+ Inserts \a value at index position \a i in the vector. If \a i is
+ 0, the value is prepended to the vector. If \a i is size(), the
+ value is appended to the vector.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 9
+
+ For large vectors, this operation can be slow (\l{linear time}),
+ because it requires moving all the items at indexes \a i and
+ above by one position further in memory. If you want a container
+ class that provides a fast insert() function, use QLinkedList
+ instead.
+
+ \sa append(), prepend(), remove()
+*/
+
+/*! \fn void QVector::insert(int i, int count, const T &value)
+
+ \overload
+
+ Inserts \a count copies of \a value at index position \a i in the
+ vector.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 10
+*/
+
+/*! \fn QVector::iterator QVector::insert(iterator before, const T &value)
+
+ \overload
+
+ Inserts \a value in front of the item pointed to by the iterator
+ \a before. Returns an iterator pointing at the inserted item.
+*/
+
+/*! \fn QVector::iterator QVector::insert(iterator before, int count, const T &value)
+
+ Inserts \a count copies of \a value in front of the item pointed to
+ by the iterator \a before. Returns an iterator pointing at the
+ first of the inserted items.
+*/
+
+/*! \fn void QVector::replace(int i, const T &value)
+
+ Replaces the item at index position \a i with \a value.
+
+ \a i must be a valid index position in the vector (i.e., 0 <= \a
+ i < size()).
+
+ \sa operator[](), remove()
+*/
+
+/*! \fn void QVector::remove(int i)
+
+ \overload
+
+ Removes the element at index position \a i.
+
+ \sa insert(), replace(), fill()
+*/
+
+/*! \fn void QVector::remove(int i, int count)
+
+ \overload
+
+ Removes \a count elements from the middle of the vector, starting at
+ index position \a i.
+
+ \sa insert(), replace(), fill()
+*/
+
+/*! \fn QVector &QVector::fill(const T &value, int size = -1)
+
+ Assigns \a value to all items in the vector. If \a size is
+ different from -1 (the default), the vector is resized to size \a
+ size beforehand.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 11
+
+ \sa resize()
+*/
+
+/*! \fn int QVector::indexOf(const T &value, int from = 0) const
+
+ Returns the index position of the first occurrence of \a value in
+ the vector, searching forward from index position \a from.
+ Returns -1 if no item matched.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 12
+
+ This function requires the value type to have an implementation of
+ \c operator==().
+
+ \sa lastIndexOf(), contains()
+*/
+
+/*! \fn int QVector::lastIndexOf(const T &value, int from = -1) const
+
+ Returns the index position of the last occurrence of the value \a
+ value in the vector, searching backward from index position \a
+ from. If \a from is -1 (the default), the search starts at the
+ last item. Returns -1 if no item matched.
+
+ Example:
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 13
+
+ This function requires the value type to have an implementation of
+ \c operator==().
+
+ \sa indexOf()
+*/
+
+/*! \fn bool QVector::contains(const T &value) const
+
+ Returns true if the vector contains an occurrence of \a value;
+ otherwise returns false.
+
+ This function requires the value type to have an implementation of
+ \c operator==().
+
+ \sa indexOf(), count()
+*/
+
+/*! \fn bool QVector::startsWith(const T &value) const
+ \since 4.5
+
+ Returns true if this vector is not empty and its first
+ item is equal to \a value; otherwise returns false.
+
+ \sa isEmpty(), first()
+*/
+
+/*! \fn bool QVector::endsWith(const T &value) const
+ \since 4.5
+
+ Returns true if this vector is not empty and its last
+ item is equal to \a value; otherwise returns false.
+
+ \sa isEmpty(), last()
+*/
+
+
+/*! \fn int QVector::count(const T &value) const
+
+ Returns the number of occurrences of \a value in the vector.
+
+ This function requires the value type to have an implementation of
+ \c operator==().
+
+ \sa contains(), indexOf()
+*/
+
+/*! \fn int QVector::count() const
+
+ \overload
+
+ Same as size().
+*/
+
+/*! \fn QVector::iterator QVector::begin()
+
+ Returns an \l{STL-style iterator} pointing to the first item in
+ the vector.
+
+ \sa constBegin(), end()
+*/
+
+/*! \fn QVector::const_iterator QVector::begin() const
+
+ \overload
+*/
+
+/*! \fn QVector::const_iterator QVector::constBegin() const
+
+ Returns a const \l{STL-style iterator} pointing to the first item
+ in the vector.
+
+ \sa begin(), constEnd()
+*/
+
+/*! \fn QVector::iterator QVector::end()
+
+ Returns an \l{STL-style iterator} pointing to the imaginary item
+ after the last item in the vector.
+
+ \sa begin(), constEnd()
+*/
+
+/*! \fn QVector::const_iterator QVector::end() const
+
+ \overload
+*/
+
+/*! \fn QVector::const_iterator QVector::constEnd() const
+
+ Returns a const \l{STL-style iterator} pointing to the imaginary
+ item after the last item in the vector.
+
+ \sa constBegin(), end()
+*/
+
+/*! \fn QVector::iterator QVector::erase(iterator pos)
+
+ Removes the item pointed to by the iterator \a pos from the
+ vector, and returns an iterator to the next item in the vector
+ (which may be end()).
+
+ \sa insert(), remove()
+*/
+
+/*! \fn QVector::iterator QVector::erase(iterator begin, iterator end)
+
+ \overload
+
+ Removes all the items from \a begin up to (but not including) \a
+ end. Returns an iterator to the same item that \a end referred to
+ before the call.
+*/
+
+/*! \fn T& QVector::first()
+
+ Returns a reference to the first item in the vector. This
+ function assumes that the vector isn't empty.
+
+ \sa last(), isEmpty()
+*/
+
+/*! \fn const T& QVector::first() const
+
+ \overload
+*/
+
+/*! \fn T& QVector::last()
+
+ Returns a reference to the last item in the vector. This function
+ assumes that the vector isn't empty.
+
+ \sa first(), isEmpty()
+*/
+
+/*! \fn const T& QVector::last() const
+
+ \overload
+*/
+
+/*! \fn T QVector::value(int i) const
+
+ Returns the value at index position \a i in the vector.
+
+ If the index \a i is out of bounds, the function returns
+ a \l{default-constructed value}. If you are certain that
+ \a i is within bounds, you can use at() instead, which is slightly
+ faster.
+
+ \sa at(), operator[]()
+*/
+
+/*! \fn T QVector::value(int i, const T &defaultValue) const
+
+ \overload
+
+ If the index \a i is out of bounds, the function returns
+ \a defaultValue.
+*/
+
+/*! \fn void QVector::push_back(const T &value)
+
+ This function is provided for STL compatibility. It is equivalent
+ to append(\a value).
+*/
+
+/*! \fn void QVector::push_front(const T &value)
+
+ This function is provided for STL compatibility. It is equivalent
+ to prepend(\a value).
+*/
+
+/*! \fn void QVector::pop_front()
+
+ This function is provided for STL compatibility. It is equivalent
+ to erase(begin()).
+*/
+
+/*! \fn void QVector::pop_back()
+
+ This function is provided for STL compatibility. It is equivalent
+ to erase(end() - 1).
+*/
+
+/*! \fn T& QVector::front()
+
+ This function is provided for STL compatibility. It is equivalent
+ to first().
+*/
+
+/*! \fn QVector::const_reference QVector::front() const
+
+ \overload
+*/
+
+/*! \fn QVector::reference QVector::back()
+
+ This function is provided for STL compatibility. It is equivalent
+ to last().
+*/
+
+/*! \fn QVector::const_reference QVector::back() const
+
+ \overload
+*/
+
+/*! \fn bool QVector::empty() const
+
+ This function is provided for STL compatibility. It is equivalent
+ to isEmpty(), returning true if the vector is empty; otherwise
+ returns false.
+*/
+
+/*! \fn QVector<T> &QVector::operator+=(const QVector<T> &other)
+
+ Appends the items of the \a other vector to this vector and
+ returns a reference to this vector.
+
+ \sa operator+(), append()
+*/
+
+/*! \fn void QVector::operator+=(const T &value)
+
+ \overload
+
+ Appends \a value to the vector.
+
+ \sa append(), operator<<()
+*/
+
+/*! \fn QVector<T> QVector::operator+(const QVector<T> &other) const
+
+ Returns a vector that contains all the items in this vector
+ followed by all the items in the \a other vector.
+
+ \sa operator+=()
+*/
+
+/*! \fn QVector<T> &QVector::operator<<(const T &value)
+
+ Appends \a value to the vector and returns a reference to this
+ vector.
+
+ \sa append(), operator+=()
+*/
+
+/*! \fn QVector<T> &QVector::operator<<(const QVector<T> &other)
+
+ Appends \a other to the vector and returns a reference to the
+ vector.
+*/
+
+/*! \typedef QVector::iterator
+
+ The QVector::iterator typedef provides an STL-style non-const
+ iterator for QVector and QStack.
+
+ QVector provides both \l{STL-style iterators} and \l{Java-style
+ iterators}. The STL-style non-const iterator is simply a typedef
+ for "T *" (pointer to T).
+
+ \sa QVector::begin(), QVector::end(), QVector::const_iterator, QMutableVectorIterator
+*/
+
+/*! \typedef QVector::const_iterator
+
+ The QVector::const_iterator typedef provides an STL-style const
+ iterator for QVector and QStack.
+
+ QVector provides both \l{STL-style iterators} and \l{Java-style
+ iterators}. The STL-style const iterator is simply a typedef for
+ "const T *" (pointer to const T).
+
+ \sa QVector::constBegin(), QVector::constEnd(), QVector::iterator, QVectorIterator
+*/
+
+/*! \typedef QVector::Iterator
+
+ Qt-style synonym for QVector::iterator.
+*/
+
+/*! \typedef QVector::ConstIterator
+
+ Qt-style synonym for QVector::const_iterator.
+*/
+
+/*! \typedef QVector::const_pointer
+
+ Typedef for const T *. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::const_reference
+
+ Typedef for T &. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::difference_type
+
+ Typedef for ptrdiff_t. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::pointer
+
+ Typedef for T *. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::reference
+
+ Typedef for T &. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::size_type
+
+ Typedef for int. Provided for STL compatibility.
+*/
+
+/*! \typedef QVector::value_type
+
+ Typedef for T. Provided for STL compatibility.
+*/
+
+/*! \fn QList<T> QVector<T>::toList() const
+
+ Returns a QList object with the data contained in this QVector.
+
+ Example:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 14
+
+ \sa fromList(), QList::fromVector()
+*/
+
+/*! \fn QVector<T> QVector<T>::fromList(const QList<T> &list)
+
+ Returns a QVector object with the data contained in \a list.
+
+ Example:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 15
+
+ \sa toList(), QList::toVector()
+*/
+
+/*! \fn QVector<T> QVector<T>::fromStdVector(const std::vector<T> &vector)
+
+ Returns a QVector object with the data contained in \a vector. The
+ order of the elements in the QVector is the same as in \a vector.
+
+ Example:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 16
+
+ \sa toStdVector(), QList::fromStdList()
+*/
+
+/*! \fn std::vector<T> QVector<T>::toStdVector() const
+
+ Returns a std::vector object with the data contained in this QVector.
+ Example:
+
+ \snippet doc/src/snippets/code/src_corelib_tools_qvector.cpp 17
+
+ \sa fromStdVector(), QList::toStdList()
+*/
+
+/*! \fn QDataStream &operator<<(QDataStream &out, const QVector<T> &vector)
+ \relates QVector
+
+ Writes the vector \a vector to stream \a out.
+
+ This function requires the value type to implement \c operator<<().
+
+ \sa \link datastreamformat.html Format of the QDataStream operators \endlink
+*/
+
+/*! \fn QDataStream &operator>>(QDataStream &in, QVector<T> &vector)
+ \relates QVector
+
+ Reads a vector from stream \a in into \a vector.
+
+ This function requires the value type to implement \c operator>>().
+
+ \sa \link datastreamformat.html Format of the QDataStream operators \endlink
+*/
+
+QT_END_NAMESPACE