Also add one for types that are neither copy- nor move-constructible.
In contrast to resize(n), the QVLA(n) ctor worked for such types, so
make sure it stays that way.
Pick-to: 6.5 6.4 6.4.3 6.2 5.15
Change-Id: If54fbc9dd6a4808175c4bcb0ffb492b33c879746
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
I don't begin to understand the semantics of the trackers here, but
whatever they are, they break with the fallback std::swap() 3-moves
implementation and lose track of alive objects, so provide an ADL swap
that does the right thing.
Amends dd58ddd5d9 (I think).
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: I1cd49c95dca2d103a26c2c7ac0a896929135a6c8
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The growBy() function takes the _increment_ of the size(), so needs to
add size() to increment for the call to realloc().
Add a test which hangs (vanilla build) or explodes (valgrind build)
without the fix.
Amends 26b227e128.
Done-with: Eirik Aavitsland <eirik.aavitsland@qt.io>
Pick-to: 6.5 6.4
Fixes: QTBUG-110412
Change-Id: I7ea91342fdcb779825c88013a3f86ba6d90ef530
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Despite being move-only, std::vector<unique_ptr> advertizes
is_copyable:
https://quuxplusone.github.io/blog/2020/02/05/vector-is-copyable-except-when-its-not/
Our combined reallocation and resizing function, reallocate_impl(),
runs afoul of this when it uses std::is_copyable in a constexpr-if to
implement resize(n, v) without running into problems with move-only
types: the trait is true, but actual instantation runs into a
static_assert in the STL implementation.
To fix, move the problematic resize functionality out of
reallocate_impl() and into the resp. resize_impl overloads. The shrink
functionality remains in reallocate_impl(), because there are many
more users, and it only requires destructible<T>, which isn't
constraining at all.
Amends a00a1d8806.
Fixes: QTBUG-109745
Pick-to: 6.5 6.4
Change-Id: Ibc5b9cf5375108eb3d8f6c8a16d4fd02dadd73b1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.
Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.
Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
CMakeLists.txt and .cmake files of significant size
(more than 2 lines according to our check in tst_license.pl)
now have the copyright and license header.
Existing copyright statements remain intact
Task-number: QTBUG-88621
Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Replace the current license disclaimer in files by
a SPDX-License-Identifier.
Files that have to be modified by hand are modified.
License files are organized under LICENSES directory.
Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Check, in tst_qvarlengtharray, that the forwarding header still works.
Pick-to: 6.3
Change-Id: Ia03cf48457f538287880bb676aea3fa44aeb255f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
All Qt 6 containers have "fast" prepend these days. Except
QVLA. Instead of enabling "fast" prepend for QVLA, slowing down
idiomatic QVLA use, simply deprecate prepend().
There appear to be no users of this function in qtbase outside tests.
[ChangeLog][QtCore][Deprecation Notices][QVarLengthArray] Deprecated
prepend() because QVarLengthArray is the only Qt container without a
"fast" prepend. If you require that functionality, even though it's a
linear operation, then use insert(cbegin(), ~~~) instead.
Change-Id: I39ff1dd7d4de7fc08d5380a5a7450dd8c8996fe2
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The old code had several bugs:
- it immediately clobbered *this with new state, before having copied
over the elements from the old to the new buffer
- when buffer relocation threw, it would keep the new (partially-filled)
buffer and throw away the old
- it unconditionally used std::move() for non-relocatable types, making
it impossible to restore the original buffer when a move throws
Instead of clobbering *this with new state, do all the work on the
side and change *this only once the reallocation has happened
successfully.
Also use q_uninitialized_relocate_n() and unique_ptr in the
implementation to simplify the code. The former got the necessary
update to use std::move_if_noexcept() instead of an unconditional
std::move() for the non-relocatable case.
[ChangeLog][QtCore][QVarLengthArray] The append()-like functions are
now strongly exception safe. This means reallocation will now use
copies instead of moves, unless the value_type has a noexcept move
constructor.
Fixes: QTBUG-99039
Change-Id: I031251b8d14ac045592d01caed59d4638c3d9892
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
If the in-place constructor throws, the old code had already updated
the container's size(). Fix by delaying the update to after the
in-place construction.
[ChangeLog][QtCore][QVarLengthArray] Fixed a bug whereby a failed
append() would leave the container with an inconsistent size().
Pick-to: 6.2 5.15
Change-Id: Ief1e668d945149bd8ba96c8af1398baaa7876880
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
There seems to have been no-one that checked a simple empty()/isEmpty()...
Pick-to: 6.2 5.15
Change-Id: I7fa567f556532dfa21db759719f1303a768a9732
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Currently, we allocate memory for elements one by one which can get
pretty slow when adding many elements.
[ChangeLog][QtCore][QVarLengthArray] Reduced number of memory
allocations in emplace() by allocating more memory at once.
Fixes: QTBUG-97489
Pick-to: 6.2
Change-Id: Idfb5b5946b047d5215c8ed00770574249f9f5d40
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This patch removes most of the checks that are made using C++20
__cpp_* macros for features available in C++17 and earlier.
Library feature check macros (__cpp_lib_*) are unaffected.
Change-Id: I557b2bd0d4ff09b13837555e9880eb28e0355f64
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Take the rvalue insert() function and turn it into the emplace()
function. Reformulate rvalue-insert using emplace(). Lvalue insert()
is using a different code path, so leave that alone. This way, we
don't need to go overboard with testing.
[ChangeLog][QtCore][QVarLengthArray] Added emplace(), emplace_back().
Change-Id: I3e1400820ae0dd1fe87fd4b4c518f7f40be39f8b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This patch introduces some test improvements to check the calls of
different methods on an empty default-constructed container.
Apart from that, many other tests are added to extend code coverage.
Task-number: QTBUG-91736
Pick-to: 6.2 6.1
Change-Id: Icc1f1342738603c9bed065b2a36c72ea60b48962
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Remove the qmake project files for most of Qt.
Leave the qmake project files for examples, because we still test those
in the CI to ensure qmake does not regress.
Also leave the qmake project files for utils and other minor parts that
lack CMake project files.
Task-number: QTBUG-88742
Change-Id: I6cdf059e6204816f617f9624f3ea9822703f73cc
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Q_MOVABLE_TYPE was conceived before C++ had move semantics. Now, with
move semantics, its name is misleading. Q_RELOCATABLE_TYPE was
introduced as a synonym to Q_MOVABLE_TYPE. Usage of Q_MOVABLE_TYPE
is discouraged now. This patch replaces all usages of Q_MOVABLE_TYPE
by Q_RELOCATABLE_TYPE in QtBase. As the two are synonymous, this
patch should have no impact on users.
Pick-to: 6.0
Change-Id: Ie653984363198c1aeb1f70f8e0fa189aae38eb5c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
The right include is QTest, QtTest drags in all of QtCore.
Change-Id: Icc2964ccdb85fe1bfc9fe8f43351a4605a34329b
Pick-to: 6.0 5.15
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Modify special case locations to use the new API as well.
Clean up some stale .prev files that are not needed anymore.
Clean up some project files that are not used anymore.
Task-number: QTBUG-86815
Change-Id: I9947da921f98686023c6bb053dfcc101851276b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Remove QTypeInfo::isStatic, as that's not used anymore in Qt 6.
Also remove sizeOf, it's unused, and we have QMetaType for that if
required.
Remove all typeinfo declaractions for trivial types, as the default
template covers them correctly nowadays.
Finally set up a better default for isPointer, and do some smaller
cleanups all over the place.
Change-Id: I6758ed37dfc701feaaf0ff105cc95e32da9f9c33
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
And remove one of the type id to name mapping that still
existed in QMetaType. QMetaTypeInterface can provide that,
so there's no need to have a second copy of the data.
qMetaTypeTypeInternal() can still map all the names of all
builtin types to ids. That functionality is for now still
required by moc and can't be removed yet.
Change-Id: Ib4f8e9c71e1e7d99d52da9e44477c9a1f1805e57
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Use pro2cmake with '--api-version 2' to force regenerate
projects to use the new prefixed qt_foo APIs.
Change-Id: I055c4837860319e93aaa6b09d646dda4fc2a4069
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
A QVLA is copyable, so it should be movable, too.
Added a helper function a la P1144's uninitialized_relocate_n to deal
with the QTypeInfoQuery stuff. This way, the code is re-usable
everywhere it's needed. The same cannot be said for QArrayDataOps,
which only a parent can love...
[ChangeLog][QtCore][QVarLengthArray] Added missing move constructor
and move-assignment operator.
Task-number: QTBUG-39111
Change-Id: If0dc2aa78eb29062d73dcd3dc4647ba345ae39e6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There is no excuse for copying several KiBs of data just to iterate
over it, yet that's exactly what Q_FOREACH does.
Besides, this use of Q_FOREACH is being deprecated. In my tree, it's
already a hard error.
Change-Id: I07240c37626f7d284781e8c4be05eef3c7a54f39
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Note that android builds will be broken after this merge and
regeneration, because we don't currently handle the minimum required
changes that were brought in with the Android multi ABI support
that comes from 5.14.
This will have to be addressed in a separate change.
For now the build on Android will fail while compiling due to incorrect
generation of LIB_SUFFIX with QT_ARCH.
Change-Id: Ia4a871f4b7ddd0da11caf5f34e10a599a97bb55d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Qt CMake Build Bot
Amends 2e1763d83a.
The new range ctors need deduction guides, since the compiler can't
deduce the value_type from a pair of iterators.
Change-Id: I3ec1e5f91305b317c443b6a70246be416b55bad9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Don't call realloc() with all its machinery when we know exactly what
to do: destroy the last element and decrease the size by one.
Extend the test, removing the unused Foo class for a new Tracker one.
Change-Id: I568eef4f6335669689fb16fd23af92cb4d6464bd
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Otherwise "QVarLengthArray<Foo> x = {};" gives a warning. Also, some
compilers get confused about "QVarLengthArray()" this way.
Task-number: QTBUG-76199
Change-Id: I4296586c0181d3e6e82ca8b7b79aeb9a21645d1f
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
The include is needed for std::unique_ptr on winrt.
Change-Id: I72a28bd0951cc947ac65877ccc35f464c757c444
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
Improves performance and STL compatibility by adding rvalue versions
of prepend and insert.
[ChangeLog][QtCore][QVarLengthArray] Added rvalue overloads of
prepend and insert.
[ChangeLog][QtCore][QVector] Added rvalue overloads of prepend
and insert.
[ChangeLog][QtCore][QVarLengthArray] Can now contain movable but
non-copyable types, such as std::unique_ptr.
Change-Id: I6c946acc5b67502c91c52ac5dea67cedb1af93a5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Like the lvalue QVector::append() overload, when we reallocate,
we need to take a copy of the function's argument because the
reference will get stale upon reallocation.
Add a test.
[ChangeLog][QtCore][QVarLengthArray] Fixed a bug involving
appending an item already in the container to the container
again.
Change-Id: I06eeed6cb383dd5924e47a302bb3d1666d04c8e8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Prefer QCOMPARE over QVERIFY for equality and use QLatin1String().
Change-Id: If226a0fc7b25be3e6774c7e36ca1e6f99234e5dd
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>