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authorEdward Welbourne <edward.welbourne@qt.io>2020-07-16 15:13:36 +0200
committerEdward Welbourne <edward.welbourne@qt.io>2020-08-28 21:22:32 +0200
commit26547c296ba89d20872eeda9d334fc1e07ddb43e (patch)
treeac5ef06bd4be3bf8bed46512cea2539d14a5d884 /src/corelib/tools
parent17ba201a3f2138e9a8fb2c8b63b9f1ccdf8eb9f3 (diff)
Purge qalgorithm.h of deprecated API
A large slice of it has been deprecated since 5.2. Reflowed a doc paragraph pointed out, in the deprecation commit, as having been left ragged by its edits. Note: qSwap() is documented as \deprecated but not marked, where it's defined, as deprecated. Change-Id: Iaff10ac0c4c38e5b85f10eca4eedeab861f09959 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/tools')
-rw-r--r--src/corelib/tools/qalgorithms.h453
-rw-r--r--src/corelib/tools/qalgorithms.qdoc576
2 files changed, 6 insertions, 1023 deletions
diff --git a/src/corelib/tools/qalgorithms.h b/src/corelib/tools/qalgorithms.h
index 1445de1008..6b55136bc3 100644
--- a/src/corelib/tools/qalgorithms.h
+++ b/src/corelib/tools/qalgorithms.h
@@ -1,6 +1,6 @@
/****************************************************************************
**
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
@@ -47,271 +47,6 @@
#endif
QT_BEGIN_NAMESPACE
-QT_WARNING_PUSH
-QT_WARNING_DISABLE_DEPRECATED
-
-/*
- Warning: The contents of QAlgorithmsPrivate is not a part of the public Qt API
- and may be changed from version to version or even be completely removed.
-*/
-namespace QAlgorithmsPrivate {
-
-#if QT_DEPRECATED_SINCE(5, 2)
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::sort") Q_OUTOFLINE_TEMPLATE void qSortHelper(RandomAccessIterator start, RandomAccessIterator end, const T &t, LessThan lessThan);
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::sort") inline void qSortHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &dummy);
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::stable_sort") Q_OUTOFLINE_TEMPLATE void qStableSortHelper(RandomAccessIterator start, RandomAccessIterator end, const T &t, LessThan lessThan);
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::stable_sort") inline void qStableSortHelper(RandomAccessIterator, RandomAccessIterator, const T &);
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::lower_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qLowerBoundHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan);
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::upper_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qUpperBoundHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan);
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qBinaryFindHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan);
-#endif // QT_DEPRECATED_SINCE(5, 2)
-
-}
-
-#if QT_DEPRECATED_SINCE(5, 2)
-template <typename InputIterator, typename OutputIterator>
-QT_DEPRECATED_X("Use std::copy") inline OutputIterator qCopy(InputIterator begin, InputIterator end, OutputIterator dest)
-{
- while (begin != end)
- *dest++ = *begin++;
- return dest;
-}
-
-template <typename BiIterator1, typename BiIterator2>
-QT_DEPRECATED_X("Use std::copy_backward") inline BiIterator2 qCopyBackward(BiIterator1 begin, BiIterator1 end, BiIterator2 dest)
-{
- while (begin != end)
- *--dest = *--end;
- return dest;
-}
-
-template <typename InputIterator1, typename InputIterator2>
-QT_DEPRECATED_X("Use std::equal") inline bool qEqual(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2)
-{
- for (; first1 != last1; ++first1, ++first2)
- if (!(*first1 == *first2))
- return false;
- return true;
-}
-
-template <typename ForwardIterator, typename T>
-QT_DEPRECATED_X("Use std::fill") inline void qFill(ForwardIterator first, ForwardIterator last, const T &val)
-{
- for (; first != last; ++first)
- *first = val;
-}
-
-template <typename Container, typename T>
-QT_DEPRECATED_X("Use std::fill") inline void qFill(Container &container, const T &val)
-{
- qFill(container.begin(), container.end(), val);
-}
-
-template <typename InputIterator, typename T>
-QT_DEPRECATED_X("Use std::find") inline InputIterator qFind(InputIterator first, InputIterator last, const T &val)
-{
- while (first != last && !(*first == val))
- ++first;
- return first;
-}
-
-template <typename Container, typename T>
-QT_DEPRECATED_X("Use std::find") inline typename Container::const_iterator qFind(const Container &container, const T &val)
-{
- return qFind(container.constBegin(), container.constEnd(), val);
-}
-
-template <typename InputIterator, typename T, typename Size>
-QT_DEPRECATED_X("Use std::count") inline void qCount(InputIterator first, InputIterator last, const T &value, Size &n)
-{
- for (; first != last; ++first)
- if (*first == value)
- ++n;
-}
-
-template <typename Container, typename T, typename Size>
-QT_DEPRECATED_X("Use std::count") inline void qCount(const Container &container, const T &value, Size &n)
-{
- qCount(container.constBegin(), container.constEnd(), value, n);
-}
-
-#ifdef Q_QDOC
-typedef void* LessThan;
-template <typename T> LessThan qLess();
-template <typename T> LessThan qGreater();
-#else
-template <typename T>
-class QT_DEPRECATED_X("Use std::less") qLess
-{
-public:
- inline bool operator()(const T &t1, const T &t2) const
- {
- return (t1 < t2);
- }
-};
-
-template <typename T>
-class QT_DEPRECATED_X("Use std::greater") qGreater
-{
-public:
- inline bool operator()(const T &t1, const T &t2) const
- {
- return (t2 < t1);
- }
-};
-#endif
-
-template <typename RandomAccessIterator>
-QT_DEPRECATED_X("Use std::sort") inline void qSort(RandomAccessIterator start, RandomAccessIterator end)
-{
- if (start != end)
- QAlgorithmsPrivate::qSortHelper(start, end, *start);
-}
-
-template <typename RandomAccessIterator, typename LessThan>
-QT_DEPRECATED_X("Use std::sort") inline void qSort(RandomAccessIterator start, RandomAccessIterator end, LessThan lessThan)
-{
- if (start != end)
- QAlgorithmsPrivate::qSortHelper(start, end, *start, lessThan);
-}
-
-template<typename Container>
-QT_DEPRECATED_X("Use std::sort") inline void qSort(Container &c)
-{
-#ifdef Q_CC_BOR
- // Work around Borland 5.5 optimizer bug
- c.detach();
-#endif
- if (!c.empty())
- QAlgorithmsPrivate::qSortHelper(c.begin(), c.end(), *c.begin());
-}
-
-template <typename RandomAccessIterator>
-QT_DEPRECATED_X("Use std::stable_sort") inline void qStableSort(RandomAccessIterator start, RandomAccessIterator end)
-{
- if (start != end)
- QAlgorithmsPrivate::qStableSortHelper(start, end, *start);
-}
-
-template <typename RandomAccessIterator, typename LessThan>
-QT_DEPRECATED_X("Use std::stable_sort") inline void qStableSort(RandomAccessIterator start, RandomAccessIterator end, LessThan lessThan)
-{
- if (start != end)
- QAlgorithmsPrivate::qStableSortHelper(start, end, *start, lessThan);
-}
-
-template<typename Container>
-QT_DEPRECATED_X("Use std::stable_sort") inline void qStableSort(Container &c)
-{
-#ifdef Q_CC_BOR
- // Work around Borland 5.5 optimizer bug
- c.detach();
-#endif
- if (!c.empty())
- QAlgorithmsPrivate::qStableSortHelper(c.begin(), c.end(), *c.begin());
-}
-
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::lower_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qLowerBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
-{
- // Implementation is duplicated from QAlgorithmsPrivate to keep existing code
- // compiling. We have to allow using *begin and value with different types,
- // and then implementing operator< for those types.
- RandomAccessIterator middle;
- int n = end - begin;
- int half;
-
- while (n > 0) {
- half = n >> 1;
- middle = begin + half;
- if (*middle < value) {
- begin = middle + 1;
- n -= half + 1;
- } else {
- n = half;
- }
- }
- return begin;
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::lower_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qLowerBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- return QAlgorithmsPrivate::qLowerBoundHelper(begin, end, value, lessThan);
-}
-
-template <typename Container, typename T>
-QT_DEPRECATED_X("Use std::lower_bound") Q_OUTOFLINE_TEMPLATE typename Container::const_iterator qLowerBound(const Container &container, const T &value)
-{
- return QAlgorithmsPrivate::qLowerBoundHelper(container.constBegin(), container.constEnd(), value, qLess<T>());
-}
-
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::upper_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qUpperBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
-{
- // Implementation is duplicated from QAlgorithmsPrivate.
- RandomAccessIterator middle;
- int n = end - begin;
- int half;
-
- while (n > 0) {
- half = n >> 1;
- middle = begin + half;
- if (value < *middle) {
- n = half;
- } else {
- begin = middle + 1;
- n -= half + 1;
- }
- }
- return begin;
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::upper_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qUpperBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- return QAlgorithmsPrivate::qUpperBoundHelper(begin, end, value, lessThan);
-}
-
-template <typename Container, typename T>
-QT_DEPRECATED_X("Use std::upper_bound") Q_OUTOFLINE_TEMPLATE typename Container::const_iterator qUpperBound(const Container &container, const T &value)
-{
- return QAlgorithmsPrivate::qUpperBoundHelper(container.constBegin(), container.constEnd(), value, qLess<T>());
-}
-
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qBinaryFind(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
-{
- // Implementation is duplicated from QAlgorithmsPrivate.
- RandomAccessIterator it = qLowerBound(begin, end, value);
-
- if (it == end || value < *it)
- return end;
-
- return it;
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qBinaryFind(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- return QAlgorithmsPrivate::qBinaryFindHelper(begin, end, value, lessThan);
-}
-
-template <typename Container, typename T>
-QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE typename Container::const_iterator qBinaryFind(const Container &container, const T &value)
-{
- return QAlgorithmsPrivate::qBinaryFindHelper(container.constBegin(), container.constEnd(), value, qLess<T>());
-}
-#endif // QT_DEPRECATED_SINCE(5, 2)
template <typename ForwardIterator>
Q_OUTOFLINE_TEMPLATE void qDeleteAll(ForwardIterator begin, ForwardIterator end)
@@ -334,191 +69,6 @@ inline void qDeleteAll(const Container &c)
*/
namespace QAlgorithmsPrivate {
-#if QT_DEPRECATED_SINCE(5, 2)
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::sort") Q_OUTOFLINE_TEMPLATE void qSortHelper(RandomAccessIterator start, RandomAccessIterator end, const T &t, LessThan lessThan)
-{
-top:
- int span = int(end - start);
- if (span < 2)
- return;
-
- --end;
- RandomAccessIterator low = start, high = end - 1;
- RandomAccessIterator pivot = start + span / 2;
-
- if (lessThan(*end, *start))
- qSwap(*end, *start);
- if (span == 2)
- return;
-
- if (lessThan(*pivot, *start))
- qSwap(*pivot, *start);
- if (lessThan(*end, *pivot))
- qSwap(*end, *pivot);
- if (span == 3)
- return;
-
- qSwap(*pivot, *end);
-
- while (low < high) {
- while (low < high && lessThan(*low, *end))
- ++low;
-
- while (high > low && lessThan(*end, *high))
- --high;
-
- if (low < high) {
- qSwap(*low, *high);
- ++low;
- --high;
- } else {
- break;
- }
- }
-
- if (lessThan(*low, *end))
- ++low;
-
- qSwap(*end, *low);
- qSortHelper(start, low, t, lessThan);
-
- start = low + 1;
- ++end;
- goto top;
-}
-
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::sort") inline void qSortHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &dummy)
-{
- qSortHelper(begin, end, dummy, qLess<T>());
-}
-
-template <typename RandomAccessIterator>
-QT_DEPRECATED_X("Use std::reverse") Q_OUTOFLINE_TEMPLATE void qReverse(RandomAccessIterator begin, RandomAccessIterator end)
-{
- --end;
- while (begin < end)
- qSwap(*begin++, *end--);
-}
-
-template <typename RandomAccessIterator>
-QT_DEPRECATED_X("Use std::rotate") Q_OUTOFLINE_TEMPLATE void qRotate(RandomAccessIterator begin, RandomAccessIterator middle, RandomAccessIterator end)
-{
- qReverse(begin, middle);
- qReverse(middle, end);
- qReverse(begin, end);
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::merge") Q_OUTOFLINE_TEMPLATE void qMerge(RandomAccessIterator begin, RandomAccessIterator pivot, RandomAccessIterator end, T &t, LessThan lessThan)
-{
- const int len1 = pivot - begin;
- const int len2 = end - pivot;
-
- if (len1 == 0 || len2 == 0)
- return;
-
- if (len1 + len2 == 2) {
- if (lessThan(*(begin + 1), *(begin)))
- qSwap(*begin, *(begin + 1));
- return;
- }
-
- RandomAccessIterator firstCut;
- RandomAccessIterator secondCut;
- int len2Half;
- if (len1 > len2) {
- const int len1Half = len1 / 2;
- firstCut = begin + len1Half;
- secondCut = qLowerBound(pivot, end, *firstCut, lessThan);
- len2Half = secondCut - pivot;
- } else {
- len2Half = len2 / 2;
- secondCut = pivot + len2Half;
- firstCut = qUpperBound(begin, pivot, *secondCut, lessThan);
- }
-
- qRotate(firstCut, pivot, secondCut);
- const RandomAccessIterator newPivot = firstCut + len2Half;
- qMerge(begin, firstCut, newPivot, t, lessThan);
- qMerge(newPivot, secondCut, end, t, lessThan);
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::stable_sort") Q_OUTOFLINE_TEMPLATE void qStableSortHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &t, LessThan lessThan)
-{
- const int span = end - begin;
- if (span < 2)
- return;
-
- const RandomAccessIterator middle = begin + span / 2;
- qStableSortHelper(begin, middle, t, lessThan);
- qStableSortHelper(middle, end, t, lessThan);
- qMerge(begin, middle, end, t, lessThan);
-}
-
-template <typename RandomAccessIterator, typename T>
-QT_DEPRECATED_X("Use std::stable_sort") inline void qStableSortHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &dummy)
-{
- qStableSortHelper(begin, end, dummy, qLess<T>());
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::lower_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qLowerBoundHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- RandomAccessIterator middle;
- int n = int(end - begin);
- int half;
-
- while (n > 0) {
- half = n >> 1;
- middle = begin + half;
- if (lessThan(*middle, value)) {
- begin = middle + 1;
- n -= half + 1;
- } else {
- n = half;
- }
- }
- return begin;
-}
-
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::upper_bound") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qUpperBoundHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- RandomAccessIterator middle;
- int n = end - begin;
- int half;
-
- while (n > 0) {
- half = n >> 1;
- middle = begin + half;
- if (lessThan(value, *middle)) {
- n = half;
- } else {
- begin = middle + 1;
- n -= half + 1;
- }
- }
- return begin;
-}
-
-template <typename RandomAccessIterator, typename T, typename LessThan>
-QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE RandomAccessIterator qBinaryFindHelper(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
-{
- RandomAccessIterator it = qLowerBoundHelper(begin, end, value, lessThan);
-
- if (it == end || lessThan(value, *it))
- return end;
-
- return it;
-}
-
-#endif // QT_DEPRECATED_SINCE(5, 2)
-
#ifdef Q_CC_CLANG
// Clang had a bug where __builtin_ctz/clz/popcount were not marked as constexpr.
# if (defined __apple_build_version__ && __clang_major__ >= 7) || (Q_CC_CLANG >= 307)
@@ -896,7 +446,6 @@ QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(unsigned long v)
return qCountLeadingZeroBits(QIntegerForSizeof<long>::Unsigned(v));
}
-QT_WARNING_POP
QT_END_NAMESPACE
#endif // QALGORITHMS_H
diff --git a/src/corelib/tools/qalgorithms.qdoc b/src/corelib/tools/qalgorithms.qdoc
index d480f2b487..f94a6856da 100644
--- a/src/corelib/tools/qalgorithms.qdoc
+++ b/src/corelib/tools/qalgorithms.qdoc
@@ -54,12 +54,11 @@
\l {Output Iterators}{output iterator}), you will always get a
compiler error, although not necessarily a very informative one.
- Some algorithms have special requirements on the value type
- stored in the containers. For example,
- qDeleteAll() requires that the value type is a
- non-const pointer type (for example, QWidget *). The value type
- requirements are specified for each algorithm, and the compiler
- will produce an error if a requirement isn't met.
+ Some algorithms have special requirements on the value type stored
+ in the containers. For example, qDeleteAll() requires that the
+ value type is a non-const pointer type (for example, QWidget
+ *). The value type requirements are specified for each algorithm,
+ and the compiler will produce an error if a requirement isn't met.
The generic algorithms can be used on other container classes
than those provided by Qt and STL. The syntax of STL-style
@@ -145,236 +144,9 @@
QList's non-const iterator type is random access iterator.
- \section1 Qt and the STL Algorithms
-
- Historically, Qt used to provide functions which were direct equivalents of
- many STL algorithmic functions. Starting with Qt 5.0, you are instead
- encouraged to use directly the implementations available in the STL; most
- of the Qt ones have been deprecated (although they are still available to
- keep the old code compiling).
-
- \section2 Porting guidelines
-
- Most of the time, an application using the deprecated Qt algorithmic functions
- can be easily ported to use the equivalent STL functions. You need to:
-
- \list 1
- \li add the \c{#include <algorithm>} preprocessor directive;
- \li replace the Qt functions with the STL counterparts, according to the table below.
- \endlist
-
- \table
- \header
- \li Qt function
- \li STL function
- \row
- \li qBinaryFind
- \li \c std::binary_search or \c std::lower_bound
- \row
- \li qCopy
- \li \c std::copy
- \row
- \li qCopyBackward
- \li \c std::copy_backward
- \row
- \li qEqual
- \li \c std::equal
- \row
- \li qFill
- \li \c std::fill
- \row
- \li qFind
- \li \c std::find
- \row
- \li qCount
- \li \c std::count
- \row
- \li qSort
- \li \c std::sort
- \row
- \li qStableSort
- \li \c std::stable_sort
- \row
- \li qLowerBound
- \li \c std::lower_bound
- \row
- \li qUpperBound
- \li \c std::upper_bound
- \row
- \li qLess
- \li \c std::less
- \row
- \li qGreater
- \li \c std::greater
-
- \endtable
-
- The only cases in which the port may not be straightforward is if the old
- code relied on template specializations of the qLess() and/or the qSwap()
- functions, which were used internally by the implementations of the Qt
- algorithmic functions, but are instead ignored by the STL ones.
-
- In case the old code relied on the specialization of the qLess() functor,
- then a workaround is explicitly passing an instance of the qLess() class
- to the STL function, for instance like this:
-
- \code
- std::sort(container.begin(), container.end(), qLess<T>());
- \endcode
-
- Instead, since it's not possible to pass a custom swapper functor to STL
- functions, the only workaround for a template specialization for qSwap() is
- providing the same specialization for \c std::swap().
-
\sa {container classes}, <QtGlobal>
*/
-/*! \fn template <typename InputIterator, typename OutputIterator> OutputIterator qCopy(InputIterator begin1, InputIterator end1, OutputIterator begin2)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::copy instead.
-
- Copies the items from range [\a begin1, \a end1) to range [\a
- begin2, ...), in the order in which they appear.
-
- The item at position \a begin1 is assigned to that at position \a
- begin2; the item at position \a begin1 + 1 is assigned to that at
- position \a begin2 + 1; and so on.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 4
-
- \sa qCopyBackward(), {input iterators}, {output iterators}
-*/
-
-/*! \fn template <typename BiIterator1, typename BiIterator2> BiIterator2 qCopyBackward(BiIterator1 begin1, BiIterator1 end1, BiIterator2 end2)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::copy_backward instead.
-
- Copies the items from range [\a begin1, \a end1) to range [...,
- \a end2).
-
- The item at position \a end1 - 1 is assigned to that at position
- \a end2 - 1; the item at position \a end1 - 2 is assigned to that
- at position \a end2 - 2; and so on.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 5
-
- \sa qCopy(), {bidirectional iterators}
-*/
-
-/*! \fn template <typename InputIterator1, typename InputIterator2> bool qEqual(InputIterator1 begin1, InputIterator1 end1, InputIterator2 begin2)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::equal instead.
-
- Compares the items in the range [\a begin1, \a end1) with the
- items in the range [\a begin2, ...). Returns \c true if all the
- items compare equal; otherwise returns \c false.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 6
-
- This function requires the item type (in the example above,
- QString) to implement \c operator==().
-
- \sa {input iterators}
-*/
-
-/*! \fn template <typename ForwardIterator, typename T> void qFill(ForwardIterator begin, ForwardIterator end, const T &value)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::fill instead.
-
- Fills the range [\a begin, \a end) with \a value.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 7
-
- \sa qCopy(), {forward iterators}
-*/
-
-/*! \fn template <typename Container, typename T> void qFill(Container &container, const T &value)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::fill instead.
-
- This is the same as qFill(\a{container}.begin(), \a{container}.end(), \a value);
-*/
-
-/*! \fn template <typename InputIterator, typename T> InputIterator qFind(InputIterator begin, InputIterator end, const T &value)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::find instead.
-
- Returns an iterator to the first occurrence of \a value in a
- container in the range [\a begin, \a end). Returns \a end if \a
- value isn't found.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 8
-
- This function requires the item type (in the example above,
- QString) to implement \c operator==().
-
- If the items in the range are in ascending order, you can get
- faster results by using qLowerBound() or qBinaryFind() instead of
- qFind().
-
- \sa qBinaryFind(), {input iterators}
-*/
-
-/*! \fn template <typename Container, typename T> void qFind(const Container &container, const T &value)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::find instead.
-
- This is the same as qFind(\a{container}.constBegin(), \a{container}.constEnd(), \a value);
-*/
-
-/*! \fn template <typename InputIterator, typename T, typename Size> void qCount(InputIterator begin, InputIterator end, const T &value, Size &n)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::count instead.
-
- Returns the number of occurrences of \a value in the range [\a begin, \a end),
- which is returned in \a n. \a n is never initialized, the count is added to \a n.
- It is the caller's responsibility to initialize \a n.
-
- Example:
-
- \snippet code/doc_src_qalgorithms.cpp 9
-
- This function requires the item type (in the example above,
- \c int) to implement \c operator==().
-
- \sa {input iterators}
-*/
-
-/*! \fn template <typename Container, typename T, typename Size> void qCount(const Container &container, const T &value, Size &n)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::count instead.
-
- Instead of operating on iterators, as in the other overload, this function
- operates on the specified \a container to obtain the number of instances
- of \a value in the variable passed as a reference in argument \a n.
-*/
-
/*! \fn template <typename T> void qSwap(T &var1, T &var2)
\relates <QtAlgorithms>
\deprecated
@@ -387,311 +159,6 @@
\snippet code/doc_src_qalgorithms.cpp 10
*/
-/*! \fn template <typename RandomAccessIterator> void qSort(RandomAccessIterator begin, RandomAccessIterator end)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::sort instead.
-
- Sorts the items in range [\a begin, \a end) in ascending order
- using the quicksort algorithm.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 11
-
- The sort algorithm is efficient on large data sets. It operates
- in \l {linear-logarithmic time}, O(\e{n} log \e{n}).
-
- This function requires the item type (in the example above,
- \c{int}) to implement \c operator<().
-
- If neither of the two items is "less than" the other, the items are
- taken to be equal. It is then undefined which one of the two
- items will appear before the other after the sort.
-
- \sa qStableSort(), {random access iterators}
-*/
-
-/*! \fn template <typename RandomAccessIterator, typename LessThan> void qSort(RandomAccessIterator begin, RandomAccessIterator end, LessThan lessThan)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::sort instead.
-
- Uses the \a lessThan function instead of \c operator<() to
- compare the items.
-
- For example, here's how to sort the strings in a QStringList
- in case-insensitive alphabetical order:
-
- \snippet code/doc_src_qalgorithms.cpp 12
-
- To sort values in reverse order, pass
- \l{qGreater()}{qGreater<T>()} as the \a lessThan parameter. For
- example:
-
- \snippet code/doc_src_qalgorithms.cpp 13
-
- If neither of the two items is "less than" the other, the items are
- taken to be equal. It is then undefined which one of the two
- items will appear before the other after the sort.
-
- An alternative to using qSort() is to put the items to sort in a
- QMap, using the sort key as the QMap key. This is often more
- convenient than defining a \a lessThan function. For example, the
- following code shows how to sort a list of strings case
- insensitively using QMap:
-
- \snippet code/doc_src_qalgorithms.cpp 14
-
- \sa QMap
-*/
-
-/*! \fn template<typename Container> void qSort(Container &container)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::sort instead.
-
- This is the same as qSort(\a{container}.begin(), \a{container}.end());
-*/
-
-/*!
- \fn template <typename RandomAccessIterator> void qStableSort(RandomAccessIterator begin, RandomAccessIterator end)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::stable_sort instead.
-
- Sorts the items in range [\a begin, \a end) in ascending order
- using a stable sorting algorithm.
-
- If neither of the two items is "less than" the other, the items are
- taken to be equal. The item that appeared before the other in the
- original container will still appear first after the sort. This
- property is often useful when sorting user-visible data.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 15
-
- The sort algorithm is efficient on large data sets. It operates
- in \l {linear-logarithmic time}, O(\e{n} log \e{n}).
-
- This function requires the item type (in the example above,
- \c{int}) to implement \c operator<().
-
- \sa qSort(), {random access iterators}
-*/
-
-/*!
- \fn template <typename RandomAccessIterator, typename LessThan> void qStableSort(RandomAccessIterator begin, RandomAccessIterator end, LessThan lessThan)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::stable_sort instead.
-
- Uses the \a lessThan function instead of \c operator<() to
- compare the items.
-
- For example, here's how to sort the strings in a QStringList
- in case-insensitive alphabetical order:
-
- \snippet code/doc_src_qalgorithms.cpp 16
-
- Note that earlier versions of Qt allowed using a lessThan function that took its
- arguments by non-const reference. From 4.3 and on this is no longer possible,
- the arguments has to be passed by const reference or value.
-
- To sort values in reverse order, pass
- \l{qGreater()}{qGreater<T>()} as the \a lessThan parameter. For
- example:
-
- \snippet code/doc_src_qalgorithms.cpp 17
-
- If neither of the two items is "less than" the other, the items are
- taken to be equal. The item that appeared before the other in the
- original container will still appear first after the sort. This
- property is often useful when sorting user-visible data.
-*/
-
-/*!
- \fn template <typename Container> void qStableSort(Container &container)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::stable_sort instead.
-
- This is the same as qStableSort(\a{container}.begin(), \a{container}.end());
-*/
-
-/*! \fn template <typename RandomAccessIterator, typename T> RandomAccessIterator qLowerBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::lower_bound instead.
-
- Performs a binary search of the range [\a begin, \a end) and
- returns the position of the first occurrence of \a value. If no
- such item is found, returns the position where it should be
- inserted.
-
- The items in the range [\a begin, \e end) must be sorted in
- ascending order; see qSort().
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 18
-
- This function requires the item type (in the example above,
- \c{int}) to implement \c operator<().
-
- qLowerBound() can be used in conjunction with qUpperBound() to
- iterate over all occurrences of the same value:
-
- \snippet code/doc_src_qalgorithms.cpp 19
-
- \sa qUpperBound(), qBinaryFind()
-*/
-
-/*!
- \fn template <typename RandomAccessIterator, typename T, typename LessThan> RandomAccessIterator qLowerBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::lower_bound instead.
-
- Uses the \a lessThan function instead of \c operator<() to
- compare the items.
-
- Note that the items in the range must be sorted according to the order
- specified by the \a lessThan object.
-*/
-
-/*!
- \fn template <typename Container, typename T> void qLowerBound(const Container &container, const T &value)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::lower_bound instead.
-
- For read-only iteration over containers, this function is broadly equivalent to
- qLowerBound(\a{container}.begin(), \a{container}.end(), value). However, since it
- returns a const iterator, you cannot use it to modify the container; for example,
- to insert items.
-*/
-
-/*! \fn template <typename RandomAccessIterator, typename T> RandomAccessIterator qUpperBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::upper_bound instead.
-
- Performs a binary search of the range [\a begin, \a end) and
- returns the position of the one-past-the-last occurrence of \a
- value. If no such item is found, returns the position where the
- item should be inserted.
-
- The items in the range [\a begin, \e end) must be sorted in
- ascending order; see qSort().
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 20
-
- This function requires the item type (in the example above,
- \c{int}) to implement \c operator<().
-
- qUpperBound() can be used in conjunction with qLowerBound() to
- iterate over all occurrences of the same value:
-
- \snippet code/doc_src_qalgorithms.cpp 21
-
- \sa qLowerBound(), qBinaryFind()
-*/
-
-/*!
- \fn template <typename RandomAccessIterator, typename T, typename LessThan> RandomAccessIterator qUpperBound(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::upper_bound instead.
-
- Uses the \a lessThan function instead of \c operator<() to
- compare the items.
-
- Note that the items in the range must be sorted according to the order
- specified by the \a lessThan object.
-*/
-
-/*!
- \fn template <typename Container, typename T> void qUpperBound(const Container &container, const T &value)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::upper_bound instead.
-
- This is the same as qUpperBound(\a{container}.begin(), \a{container}.end(), \a value);
-*/
-
-
-/*! \fn template <typename RandomAccessIterator, typename T> RandomAccessIterator qBinaryFind(RandomAccessIterator begin, RandomAccessIterator end, const T &value)
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::binary_search or \c std::lower_bound instead.
-
- Performs a binary search of the range [\a begin, \a end) and
- returns the position of an occurrence of \a value. If there are
- no occurrences of \a value, returns \a end.
-
- The items in the range [\a begin, \a end) must be sorted in
- ascending order; see qSort().
-
- If there are many occurrences of the same value, any one of them
- could be returned. Use qLowerBound() or qUpperBound() if you need
- finer control.
-
- Example:
- \snippet code/doc_src_qalgorithms.cpp 22
-
- This function requires the item type (in the example above,
- QString) to implement \c operator<().
-
- \sa qLowerBound(), qUpperBound(), {random access iterators}
-*/
-
-/*! \fn template <typename RandomAccessIterator, typename T, typename LessThan> RandomAccessIterator qBinaryFind(RandomAccessIterator begin, RandomAccessIterator end, const T &value, LessThan lessThan)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::binary_search or \c std::lower_bound instead.
-
- Uses the \a lessThan function instead of \c operator<() to
- compare the items.
-
- Note that the items in the range must be sorted according to the order
- specified by the \a lessThan object.
-*/
-
-/*!
- \fn template <typename Container, typename T> void qBinaryFind(const Container &container, const T &value)
- \relates <QtAlgorithms>
- \deprecated
- \overload
-
- Use \c std::binary_search or \c std::lower_bound instead.
-
- This is the same as qBinaryFind(\a{container}.begin(), \a{container}.end(), \a value);
-*/
-
-
/*!
\fn template <typename ForwardIterator> void qDeleteAll(ForwardIterator begin, ForwardIterator end)
\relates <QtAlgorithms>
@@ -724,39 +191,6 @@
This is the same as qDeleteAll(\a{c}.begin(), \a{c}.end()).
*/
-/*! \fn template <typename LessThan> LessThan qLess()
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::less instead.
-
- Returns a functional object, or functor, that can be passed to qSort()
- or qStableSort().
-
- Example:
-
- \snippet code/doc_src_qalgorithms.cpp 24
-
- \sa {qGreater()}{qGreater<T>()}
-*/
-
-/*! \fn template <typename LessThan> LessThan qGreater()
- \relates <QtAlgorithms>
- \deprecated
-
- Use \c std::greater instead.
-
- Returns a functional object, or functor, that can be passed to qSort()
- or qStableSort().
-
- Example:
-
- \snippet code/doc_src_qalgorithms.cpp 25
-
- \sa {qLess()}{qLess<T>()}
-*/
-
-
/*!
\fn uint qPopulationCount(quint8 v)
\relates <QtAlgorithms>