Commit Graph

122 Commits (8823bb8d306d78dd6a2e121a708dc607beff58c8)

Author SHA1 Message Date
Qt Forward Merge Bot 8823bb8d30 Merge remote-tracking branch 'origin/5.15' into dev
Conflicts:
	examples/opengl/doc/src/cube.qdoc
	src/corelib/global/qlibraryinfo.cpp
	src/corelib/text/qbytearray_p.h
	src/corelib/text/qlocale_data_p.h
	src/corelib/time/qhijricalendar_data_p.h
	src/corelib/time/qjalalicalendar_data_p.h
	src/corelib/time/qromancalendar_data_p.h
	src/network/ssl/qsslcertificate.h
	src/widgets/doc/src/graphicsview.qdoc
	src/widgets/widgets/qcombobox.cpp
	src/widgets/widgets/qcombobox.h
	tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp
	tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
	tests/benchmarks/corelib/io/qdiriterator/qdiriterator.pro
	tests/manual/diaglib/debugproxystyle.cpp
	tests/manual/diaglib/qwidgetdump.cpp
	tests/manual/diaglib/qwindowdump.cpp
	tests/manual/diaglib/textdump.cpp
	util/locale_database/cldr2qlocalexml.py
	util/locale_database/qlocalexml.py
	util/locale_database/qlocalexml2cpp.py

Resolution of util/locale_database/ are based on:
https://codereview.qt-project.org/c/qt/qtbase/+/294250
and src/corelib/{text,time}/*_data_p.h were then regenerated by
running those scripts.

Updated CMakeLists.txt in each of
	tests/auto/corelib/serialization/qcborstreamreader/
	tests/auto/corelib/serialization/qcborvalue/
	tests/auto/gui/kernel/
and generated new ones in each of
	tests/auto/gui/kernel/qaddpostroutine/
	tests/auto/gui/kernel/qhighdpiscaling/
	tests/libfuzzer/corelib/text/qregularexpression/optimize/
	tests/libfuzzer/gui/painting/qcolorspace/fromiccprofile/
	tests/libfuzzer/gui/text/qtextdocument/sethtml/
	tests/libfuzzer/gui/text/qtextdocument/setmarkdown/
	tests/libfuzzer/gui/text/qtextlayout/beginlayout/
by running util/cmake/pro2cmake.py on their changed .pro files.

Changed target name in
	tests/auto/gui/kernel/qaction/qaction.pro
	tests/auto/gui/kernel/qaction/qactiongroup.pro
	tests/auto/gui/kernel/qshortcut/qshortcut.pro
to ensure unique target names for CMake

Changed tst_QComboBox::currentIndex to not test the
currentIndexChanged(QString), as that one does not exist in Qt 6
anymore.

Change-Id: I9a85705484855ae1dc874a81f49d27a50b0dcff7
2020-04-08 20:11:39 +02:00
Topi Reinio beffcc590c Doc: Expand reasoning for QHash deprecations
and mark QHash::[const_|key_]iterator operators correctly as deprecated.

Change-Id: I01da16254759b9bdb7920709de45a72933d6b5c8
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2020-03-26 15:27:49 +01:00
Giuseppe D'Angelo 75514103e2 Remove an outdated comment
QRandomGenerator is now used to seed QHash, so the comment
is wrong.

Change-Id: Ic50fe95ea4169b55290cc758f5aebfbb0a3ea085
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-03-13 15:23:56 +01:00
Marc Mutz bd84e8d63e QHash/QMap: don't return const from value(), key()
... it breaks move semantics.

We can change these, since they're templates and a short survey shows
that no-one in Qt was crazy enough to inherit an exported class from
QHash or QMap.

Otherwise this would be BiC on MSVC, which encodes the return type.

There's also no safety benefit here, as none of the overloads returns
by reference, so users cannot expect map.value(key).mutate() to have
an effect on the element in the container.

In this, key() and value() differ from op[], which also returns const,
but whose overload returns a reference. op[] is therefore not proposed
here.

[ChangeLog][QtCore][QHash/QMultiHash/QMap/QMultiMap] The value() and
key() member functions now return T (was: const T), enabling move
semantics on their return values.

Change-Id: I0e5f53f9834caad458e3bde27f1daacbb4bac71b
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 13:24:32 +01:00
Mårten Nordheim f4fca8697f Undeprecate QHash::count(Key)
For compatibility with std::unordered_map. Spotted in the API review.

Change-Id: Ic34600d55baebcbbf115c1090cd555984037c44c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-03 11:41:34 +01:00
Qt Forward Merge Bot 3a010f72b8 Merge remote-tracking branch 'origin/5.14' into 5.15
Conflicts:
	src/corelib/kernel/qvariant.h

Change-Id: I8f3873e74b9795ac889e7c7ec5de2619bca92160
2020-01-06 07:20:18 +00:00
Friedemann Kleint 71477104eb Fix some qdoc warnings
src/corelib/serialization/qjsonvalue.cpp:174: (qdoc) warning: No such parameter 'n' in QJsonValue::QJsonValue()
...
examples/widgets/doc/src/icons.qdoc:584: (qdoc) warning: Command '\snippet (//! [24])' failed at end of file 'widgets/icons/mainwindow.cpp'
src/corelib/text/qbytearray.cpp:5177: (qdoc) warning: clang found diagnostics parsing \fn QByteArray::FromBase64Result::operator QByteArray() const
    error: out-of-line definition of 'operator QByteArray' does not match any declaration in 'QByteArray::FromBase64Result'
src/corelib/serialization/qjsonarray.cpp:178: (qdoc) warning: Overrides a previous doc
src/corelib/serialization/qjsonarray.cpp:140: (qdoc) warning: (The previous doc is here)
src/corelib/serialization/qjsonobject.cpp:1016: (qdoc) warning: clang found diagnostics parsing \fn QJsonValueRef QJsonObject::iterator::operator[](int j) const
    error: out-of-line definition of 'operator[]' does not match any declaration in 'QJsonObject::iterator'
src/corelib/serialization/qjsonobject.cpp:1267: (qdoc) warning: clang found diagnostics parsing \fn QJsonValue QJsonObject::const_iterator::operator[](int j) const
    error: out-of-line definition of 'operator[]' does not match any declaration in 'QJsonObject::const_iterator'
src/corelib/tools/qhash.cpp:2641: (qdoc) warning: Overrides a previous doc
src/corelib/tools/qhash.cpp:1492: (qdoc) warning: (The previous doc is here)
src/corelib/tools/qhash.cpp:2659: (qdoc) warning: Can't link to 'unit()'
src/corelib/text/qchar.cpp:274: (qdoc) warning: Undocumented enum item 'Script_Sundanese' in QChar::Script
src/corelib/text/qchar.cpp:274: (qdoc) warning: No such enum item 'Script_Sundaneseo' in QChar::Script
src/network/ssl/qsslsocket.cpp:1514: (qdoc) warning: Can't link to 'QSslConfiguration::addDefaultCaCertificate()'
src/widgets/widgets/qtabwidget.cpp:581: (qdoc) warning: Undocumented parameter 'visible' in QTabWidget::setTabVisible()

Change-Id: I05c2a4884873850b684fa94036cd90db1a6e7726
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-01-03 14:59:26 +01:00
Friedemann Kleint a6f56251ca Fix some qdoc warnings
src/corelib/tools/qhash.cpp:2596: (qdoc) warning: clang found diagnostics parsing \fn template <class Key, class T> template <class InputIterator> QMultiHash::QMultiHash(InputIterator begin, InputIterator end)
    error: 'QMultiHash' is not a class, namespace, or enumeration
src/corelib/kernel/qobject.cpp:4593: (qdoc) warning: Undocumented parameter 'EXPORT_MACRO' in QObject::Q_NAMESPACE_EXPORT
src/corelib/global/qfloat16.cpp:129: (qdoc) warning: Cannot tie this documentation to anything
src/corelib/text/qlocale.qdoc:1204: (qdoc) warning: Overrides a previous doc
src/corelib/text/qlocale.qdoc:1187: (qdoc) warning: (The previous doc is here)
src/network/kernel/qhostinfo.cpp:597: (qdoc) warning: clang found diagnostics parsing \fn QHostInfo(QHostInfo &&other)
src/printsupport/dialogs/qabstractprintdialog.cpp:346: (qdoc) warning: clang found diagnostics parsing \fn int QAbstractPrintDialog::exec(): error: out-of-line definition of 'exec' does not match any declaration in 'QAbstractPrintDialog'
src/testlib/qsignalspy.qdoc:101: (qdoc) warning: clang found diagnostics parsing \fn QSignalSpy(const QObject *obj, const QMetaMethod &signal):  error: expected unqualified-id
src/testlib/doc/src/qttest-best-practices.qdoc:28: (qdoc) warning: Can't link to 'Q_VERIFY2()'
src/widgets/kernel/qactiongroup.cpp:291: (qdoc) warning: Undocumented parameter 'b' in QActionGroup::setExclusive()
src/widgets/kernel/qactiongroup.cpp:305: (qdoc) warning: Undocumented return value (hint: use 'return' or 'returns' in the text
src/widgets/kernel/qshortcut.cpp:542: (qdoc) warning: No such parameter 'context' in QShortcut::QShortcut()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'minimumTime' in QDateTimeEdit::setTimeRange()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'maximumTime' in QDateTimeEdit::setTimeRange()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'less' in QDateTimeEdit::setTimeRange()

Change-Id: I9799b5135e84c4d811674b2d114ef27315bc12df
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2020-01-02 13:43:56 +01:00
Lars Knoll 9c124b1b0a Qt 6: Deprecate QHash::insertMulti
[ChangeLog][QtCore][QHash] insertMulti(), unite() and
values(const Key &key) are now deprecated. Please use
QMultiHash instead.

Change-Id: Ic14907fd5fd38d585708e2dcf2c0200d221ebb25
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-12-12 15:25:26 +01:00
Lars Knoll 7b34da9ef1 Add QHash::insert(const QHash &other)
As opposed to unite(), this inserts one hash into the other
without duplicating elements.

Change-Id: Ifc786c48f5dc3ab18c29782e73eac3c1a3ef8981
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2019-12-05 11:50:32 +01:00
Giuseppe D'Angelo 34fe9232db Port from QAtomic::load() to loadRelaxed()
Semi-automated, just needed ~20 manual fixes:

$ find \( -iname \*.cpp -or -iname \*.h \) -exec perl -pe 's/(\.|->)load\(\)/$1loadRelaxed\(\)/g' -i \{\} +
$ find \( -iname \*.cpp -or -iname \*.h \) -exec perl -pe 's/(\.|->)store\(/$1storeRelaxed\(/g' -i \{\} +

It can be easily improved (e.g. for store check that there are no commas
after the opening parens). The most common offender is QLibrary::load,
and some code using std::atomic directly.

Change-Id: I07c38a3c8ed32c924ef4999e85c7e45cf48f0f6c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2019-06-20 20:48:59 +02:00
Allan Sandfeld Jensen b4ead57250 Move away from using 0 as a pointer constant
Cleans up most of corelib to use nullptr or default enums
where appropriate.

Change-Id: Ifcaac14ecdaaee730f87f10941db3ce407d71ef9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-06-07 17:19:16 +02:00
Marc Mutz 090085e104 corelib/tools: use qUtf16Printable() and %ls
... instead of qPrintable() and %s. Saves temporary QByteArray creation.

Change-Id: Idd46c99a5da731e29c6d237dc914e256ac7b3fbd
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
 
 
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-05-29 18:24:30 +02:00
Marc Mutz e6d9617c79 QHash/QMultiHash: add range constructors
QMap and QMultiMap will go in a separate commit, due to QMap's
insertion behavior that "reverses" the inserted elements.

[ChangeLog][QtCore][QHash] Added range constructor.

[ChangeLog][QtCore][QMultiHash] Added range constructor.

Change-Id: Icfd0d0afde27792e8439ed6df3e8774696b134d3
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Sérgio Martins <sergio.martins@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-04-25 00:10:03 +00:00
Allan Sandfeld Jensen a1e62e7ba1 Replace Q_DECL_NOEXCEPT with noexcept in corelib
In preparation of Qt6 move away from pre-C++11 macros.

Change-Id: I44126693c20c18eca5620caab4f7e746218e0ce3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-04-03 13:49:45 +00:00
Cristian Maureira-Fredes 1f6bfc2207 Doc: Move literal code block to a separate file
We need to override this snippet for the documentation
we generate for Qt for Python, and it is easier to have
it on a separate file.

Task-number: PYSIDE-801
Task-number: PYSIDE-691
Change-Id: Ideb5b6af25024279f167137d3b65660bb9c96a7e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-10-15 10:55:18 +00:00
hjk 37e91af083 QHash: Remove reference to Qt3's QDict implementation
While it is still formally correct, it does not add much
value anymore.

Change-Id: I32431e3e73f3ca662dc4beb754f53449692c56a9
Reviewed-by: Albert Astals Cid <albert.astals.cid@kdab.com>
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-07-24 09:23:55 +00:00
Martin Smith 8c322c0b2c doc: Correct remaining qdoc warnings in qhash.cpp
Added template clause to several qHash() functions and
created a \typedef comment for QHash::const_key_value_iterator.

Change-Id: Id56191f69bf9f36e606101e46bf1dfa528d88e09
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-04 12:49:23 +00:00
Martin Smith 1a78e16d19 doc: Fix three "Cannot tie" errors
Two of the three functions were for functions that
should not be documented. The third was a function
protected by #ifndef Q_OS_DARWIN, which required a
test of Q_CLANG_QDOC in the header and cpp files.

Change-Id: Id2ab3e4f2ea896dc628a622de2e80a19c18eb9fe
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2017-12-02 14:58:07 +00:00
Martin Smith b23c52ea81 Add template text to \fn commands in container classes
The \fn commands were not recognized by clang-qdoc because
the template stuff was missing from the \fn commands. This
update adds the correct template text and parameters. It
eliminates nearly 2000 qdoc warnings.

Change-Id: Ibe047424396a8f99f8bd64efea1b0d8cc7c7527d
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2017-12-01 10:48:22 +00:00
Liang Qi 88cf044580 Merge remote-tracking branch 'origin/5.9' into 5.10
Conflicts:
	src/gui/kernel/qwindow.cpp
	src/plugins/platforms/cocoa/qcocoawindow.mm
	src/plugins/platforms/windows/qwindowssystemtrayicon.cpp
	src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
	tests/auto/corelib/io/qtemporarydir/tst_qtemporarydir.cpp
	tests/auto/widgets/kernel/qaction/tst_qaction.cpp

Change-Id: Ifa515dc0ece7eb1471b00c1214149629a7e6a233
2017-11-09 11:47:57 +01:00
Thiago Macieira d674d227f7 qGlobalQHashSeed: initialize the seed before returning it
If you had never used QHash before, this function returned -1. That's
not useful if you're trying to implement your own QHash that uses Qt's
global seed.

Change-Id: Ib0e40a7a3ebc44329f23fffd14b2e875b970a55c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-11-04 19:11:41 +00:00
Thiago Macieira 81f2516600 QRandomGenerator: add system() and global()
Right now,this does really nothing. This commit is just to allow us to
transition the other modules (besides qtbase) to use the syntax that
will become the API.

I've marked three places to use the system CSPRNG:
 1) the QHash seed
 2) QUuid
 3) QAuthenticator

I didn't think the HTTP multipart boundary needed to be
cryptographically safe, so I changed that one to the global generator.

Change-Id: Ib17dde1a1dbb49a7bba8fffd14ecf1938bd8ff61
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2017-10-29 10:13:01 +00:00
Thiago Macieira 282065d443 QRandomGenerator: update API to better name
"generate" is better than "get", and we already have "generate(it, it)"
which uses std::generate(). This changes:

 - get32()    →   generate()
 - get64()    →   generate64() and QRandomGenerator64::generate()
 - getReal()  →   generateDouble()

Change-Id: I6e1fe42ae4b742a7b811fffd14e5d7bd69abcdb3
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-09-22 15:29:42 +00:00
Liang Qi 112a4af107 Merge remote-tracking branch 'origin/5.9' into dev
Conflicts:
	examples/examples.pro
	qmake/library/qmakebuiltins.cpp
	src/corelib/global/qglobal.cpp
		Re-apply b525ec2 to qrandom.cpp(code movement in 030782e)
	src/corelib/global/qnamespace.qdoc
	src/corelib/global/qrandom.cpp
	src/gui/kernel/qwindow.cpp
		Re-apply a3d59c7 to QWindowPrivate::setVisible() (code movement in d7a9e08)
	src/network/ssl/qsslkey_openssl.cpp
	src/plugins/platforms/android/androidjniinput.cpp
	src/plugins/platforms/xcb/qxcbconnection.cpp
	src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
	src/widgets/widgets/qmenu.cpp
	tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp

Change-Id: If7ab427804408877a93cbe02079fca58e568bfd3
2017-08-31 14:31:31 +02:00
Peter Seiderer b7722c251c Fix error attribute(target("+crc")) is unknown
Task-number: QTBUG-61975
Change-Id: I0b1b55c0737dad485b5ace8e6eb7cb842589453d
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2017-08-29 20:30:59 +00:00
Thiago Macieira f17095653e QUuid, QHttpMultipart and QHash: use QRandomGenerator
QRandomGenerator can produce more than 31 bits of data. And it uses
/dev/urandom for us on Unix, so QHash does not need to duplicate that
part.

Change-Id: Icd0e0d4b27cb4e5eb892fffd14b52a0d91f179eb
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-06-12 06:14:46 +00:00
Liang Qi d1ea481345 Merge remote-tracking branch 'origin/5.9' into dev
Conflicts:
	src/network/access/qnetworkreply.cpp
	tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp

Change-Id: Iadf766269454087e69fb216fc3857d85b0ddfaad
2017-05-07 13:08:18 +02:00
Samuel Gaist ae292be869 Implement key-value iterator
This patch implements an iterator that returns a pair containing both the
key and the value of an entry in QHash/QMap.

[ChangeLog][QtCore][Containers] Added an stl-like iterator to go through
QHash/QMap returning both the key and the value of the element pointed to.
That lets QHash/QMap interoperate better with stl's algorithms like
std::set_union.

Change-Id: Idbf8a8581510b3493648c34ab04c556de9fa4aa7
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2017-05-05 14:25:56 +00:00
Edward Welbourne a4192166c8 Add two missing hyphens
Change-Id: Ic320c96208fe7f8340c7eb9e9d068813d769056a
Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-04-30 09:51:16 +00:00
Thiago Macieira 4ba740b3ba QHash: make it so a zero seed selects a constant algorithm
That's the only value for which we will guarantee a stable result across
Qt versions and across invocations of the same application on different
architectures is zero. For any other value, we reserve the right to
change the algorithm. We'll now print a warning when we detect that.

Task-number: QTBUG-47566
Change-Id: I27b55fdf514247549455fffd14b1135e10d24ab4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: David Faure <david.faure@kdab.com>
2017-04-26 15:22:44 +00:00
Marc Mutz cb2246ad15 Allow to chain qt_hash() calls
There are some callers of qt_hash that first build a string just to hash it.
By allowing to pass an initial value for 'h', we can chain qt_hash() calls
to avoid having to allocate memory just to hash a two-part string.

Change-Id: Ifaca82d47b2fb8c707912342c3ddd84f91e70267
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-03-30 13:27:51 +00:00
Marc Mutz 8d44bb2c54 Add qHash(QStringView)
[ChangeLog][QtCore] Added qHash(QStringView).

Change-Id: I69c9203cf301fe586e924168381884aab2e19e5c
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
2017-03-30 04:38:26 +00:00
Marc Mutz 35b897218c Replace internal qt_hash(QString(Ref)) functions with one taking QStringView
Change-Id: I49d07689e642d26b4bceda5cace738aadd828ce0
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
2017-03-30 04:38:10 +00:00
Thiago Macieira 202d6ad730 QHash: unexport the hash seed variable
The only allowed way to access the variable is now via the public
qGlobalQHashSeed and qSetGlobalQHashSeed functions. The variable was
private API, so we're allowed to remove it.

Task-number: QTBUG-47566
Change-Id: I4a7dc1fe14154695b968fffd14abd331e5810482
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
Reviewed-by: David Faure <david.faure@kdab.com>
2017-03-20 20:07:59 +00:00
Marc Mutz 6a9cd5604e Don't narrow lengths in qHash() implementations
The crc32() functions take a size_t length, but the hash() functions
wrapping them took int lengths.

That makes no sense and actively hurts adding hash functions for STL
types or QStringView, so port the hash() interface to size_t.

Change-Id: Id303d6df4b698560fce656cec8ed693b01daac1c
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-31 00:38:37 +00:00
Marc Mutz c2f4705f23 Add qHash(QHash) and qHash(QMultiHash)
The hash function is carefully designed to give the same result
as the straight-forward implementation of qHash(unordered_map),
which we'll probably add at some point, namely: std::accumulate
over a container of std::pair.

This is one reason to use std:: and not QPair in the implemen-
tation of qHash(QHash). The other is that qHash(QPair) uses a
bad hash combiner, which may xor out the 'seed' from the result.

We can't fix that until Qt 6, but the qHash(std::pair) overload
uses the well-known boost::hash_combine algorithm (implemented
in Qt as QtPrivate::QHashCombine), so we can use that.

I also trust std::pair to work without problems with reference
template arguments, while QPair only very recently gained a very
basic auto-test for reference parameters.

[ChangeLog][QtCore] Added qHash() overloads for QHash, QMultiHash.

Change-Id: I90879d8a99cf1aadb6e84ecc0c3704f52f3691da
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-07-14 06:53:48 +00:00
Liang Qi 57057f76ad Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	.qmake.conf
	config.tests/unix/nis/nis.cpp
	mkspecs/unsupported/freebsd-g++/qplatformdefs.h
	src/corelib/tools/qdatetime.cpp
	src/corelib/tools/qsimd.cpp
	src/corelib/tools/qsimd_p.h
	src/network/access/access.pri
	src/network/access/qnetworkreplynsurlconnectionimpl.mm
	src/network/access/qnetworkreplynsurlconnectionimpl_p.h
	src/plugins/platforms/cocoa/qnsview.mm
	src/plugins/printsupport/windows/qwindowsprintdevice.cpp
	tests/auto/corelib/kernel/qobject/tst_qobject.cpp
	tests/auto/network/access/qnetworkreply/BLACKLIST
	tests/auto/widgets/widgets/qopenglwidget/BLACKLIST

Change-Id: I4b32055bbf922392ef0264fd403405416fffee57
2016-06-06 09:04:55 +02:00
Thiago Macieira 540978288e Replace qUnaligned{Load,Store} with the existing q{To,From}Unaligned
Move the Q_ALWAYS_INLINE and forcing of __builtin_memcpy to the existing
functions.

Change-Id: Icaa7fb2a490246bda156ffff143c137e520eea79
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-05-25 15:46:17 +00:00
Liang Qi ee0951d69b Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	src/network/access/qftp.cpp
	src/widgets/itemviews/qheaderview.cpp
	src/widgets/itemviews/qlistview.cpp
	tests/auto/network/access/qftp/tst_qftp.cpp

Change-Id: I9f928f25d45d8944dd60bb583f649fc1615bc5d9
2016-04-07 10:47:20 +02:00
Friedemann Kleint 2a282551ac Remove empty first lines of files.
They might upset licensing related tools.

Change-Id: I858d21fc418ba16959c88847b559b11bea29ed6b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2016-04-06 18:26:26 +00:00
Liang Qi 50d0f57b77 Merge remote-tracking branch 'origin/5.6' into 5.7
This change partially reverts 1bfc7f68 about QT_HAS_BUILTIN define
and undef in src/corelib/tools/qsimd_p.h.

This change is also squashed with "Fall back to c++11 standard
compiler flag for host builds" which is done by Peter Seiderer.

Conflicts:
	mkspecs/features/default_post.prf
	src/3rdparty/sqlite/0001-Fixing-the-SQLite3-build-for-WEC2013-again.patch
	src/3rdparty/sqlite/sqlite3.c
	src/corelib/tools/qsimd_p.h
	src/gui/kernel/qevent.cpp
	src/gui/kernel/qwindowsysteminterface.cpp
	src/gui/kernel/qwindowsysteminterface_p.h
	src/plugins/bearer/blackberry/blackberry.pro
	src/plugins/platforms/cocoa/qcocoasystemsettings.mm
	src/plugins/platformthemes/gtk2/gtk2.pro
	src/plugins/styles/bb10style/bb10style.pro
	src/sql/drivers/sqlite2/qsql_sqlite2.cpp
	tools/configure/configureapp.cpp

Task-number: QTBUG-51644
Done-with: Peter Seiderer <ps.report@gmx.net>
Change-Id: I6100d6ace31b2e8d41a95f0b5d5ebf8f1fd88b44
2016-03-11 20:08:50 +01:00
Marc Mutz 1bfc7f680f QString, QJson, QHash: Fix UBs involving unaligned loads
Found by UBSan:

  src/corelib/tools/qstring.cpp:587:42: runtime error: load of misaligned address 0x2acbf4b7551b for type 'const long long int', which requires 8 byte alignment
  src/corelib/json/qjson_p.h:405:30: runtime error: store to misaligned address 0x0000019b1e52 for type 'quint64', which requires 8 byte alignment
  src/corelib/tools/qhash.cpp:116:27: runtime error: load of misaligned address 0x2b8f9ce80e85 for type 'const qlonglong', which requires 8 byte alignment
  src/corelib/tools/qhash.cpp:133:26: runtime error: load of misaligned address 0x2b8f9ce80e8d for type 'const ushort', which requires 2 byte alignment

Fix by memcpy()ing into a local variable. Wrap this trick in
template functions in qsimd_p.h. These are marked as always-
inline and use __builtin_memcpy() where available in an
attempt to avoid the memcpy() function call overhead in debug
builds.

While this looks prohibitively expensive, from the pov of the
C++ abstract machine, it is 100% equivalent, except for the
absence of undefined behavior. In one case, the cast produces
a local temporary which is then copied into the function, and
in the other case, that local variable comes from return value
of qUnalignedLoad().

Consequently, GCC compiles these two versions into identical
assembler code (only verfied for ucstrncmp, but there's no
reason to believe that it wouldn't hold for the other cases,
too).

Task-number: QTBUG-51651
Change-Id: Ia50d4a1d7580b6f803e0895c9f3d89c7da37840c
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
2016-03-09 13:16:19 +00:00
Erik Verbruggen 15ddb7f841 ARMv8: fix crc intrinsic usage.
ARMv8 defines the crc32 instructions as optional features. Even though
the target might be ARMv8, the compiler might have been told that the
target CPU doesn't support it, in which case __ARM_FEATURE_CRC32 is not
defined. Subsequently, the arm_acle.h header might only define the
intrinsics when __ARM_FEATURE_CRC32 is defined.

Change-Id: I85efcf9efdd2e152e3f3e72310122eebf543ca3b
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
2016-03-08 17:55:13 +00:00
Sérgio Martins 6139fbeb5f Introduce QHash::equal_range()
Similar to QMap::equal_range().
Will allow to easily fix inefficient code such as:

    foreach (auto value, hash.values(key)) { ... }

[ChangeLog][QtCore][QHash] Added QHash::equal_range()

Change-Id: I6e19e25de632e897ad83d3141d9d07f0313f7200
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-02-14 06:43:52 +00:00
Liang Qi d456f87ece Merge remote-tracking branch 'origin/5.6' into dev
Conflicts:
	src/corelib/io/qfilesystemwatcher_win.cpp
	src/corelib/plugin/plugin.pri
	src/plugins/platforms/cocoa/qcocoaaccessibility.mm
	tests/auto/corelib/tools/qlocale/tst_qlocale.cpp

Change-Id: Id6824631252609a75eff8b68792e4d10095c8fc1
2016-02-11 08:25:04 +01:00
Nico Vertriest 918b8d4e9e Doc: corrected minor link issues
Task-number: QTBUG-43810
Change-Id: I98eafe0c7ed55f309640e8495c83ffcef355aa08
Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>
2016-02-05 13:01:16 +00:00
Thiago Macieira cfe891eeb8 Add Intel copyright to files that Intel has had non-trivial contribution
I wrote a script to help find the files, but I reviewed the
contributions manually to be sure I wasn't claiming copyright for search
& replace, adding Q_DECL_NOTHROW or adding "We mean it" headers.

Change-Id: I7a9e11d7b64a4cc78e24ffff142b506368fc8842
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-21 22:44:21 +00:00
Jani Heikkinen 1a88b2f768 Updated license headers
From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/

Updated license headers to use new LGPL header instead of LGPL21 one
(in those files which will be under LGPL v3)

Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:25:24 +00:00
Erik Verbruggen 6ffa3696e0 ARMv8: Update qHash for strings to use the CRC32 instruction
Same as the SSE4.2 implementation: use the (optional) ARMv8 crc32[bhwd]
instruction to calculate hashes for strings. For Aarch64, support for
the instruction is dynamically detected. For a 32bit ARM binary, dynamic
detection is only done when the compiler is explicitly told to target
ARMv8. When telling the compiler to target an other/older version, the
crc32 code is not compiled.

Change-Id: I51ebc1a4545dede4988247e75043f29a64c2a6c5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-13 09:05:06 +00:00