And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native key.
Documentation in a new commit, when the dust settles.
Drive-by updates to the tst_QSharedMemory::attach row names, to fix
grammar and remove spaces and apostrophe.
Change-Id: I12a088d1ae424825abd3fffd171d3025c77f94d2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native Qt.
Documentation in a new commit, when the dust settles.
Change-Id: I12a088d1ae424825abd3fffd171d2b549eeed040
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Common to both QSharedMemory and QSystemSemaphore, this will hold the
native key and will replace the concept of non-native key in those
classes.
Change-Id: Id8d5e3999fe94b03acc1fffd171c03197aea6016
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
This removes the second portion of the #if mess of shared code between
QSharedMemory and QSystemSemaphore for SystemV.
Change-Id: Id8d5e3999fe94b03acc1fffd171c073c2873206e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
It's not a lot of files, but it's actually more in the same dir than
mime/ does right now. I'm about to add two more files, though I'll also
merge a few more later.
Change-Id: Id8d5e3999fe94b03acc1fffd171bfe2ea36a35a7
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>
It wasn't added when this class was created in 5.0 because we couldn't
add move constructors and still keep the ability to compile Qt with
C++98 compilers. We've forgot to correct this shortcoming since 5.6.
Fixes: QTBUG-109842
Pick-to: 6.5
Change-Id: I69ecc04064514f939896fffd17376b8243b73c52
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
If an object had elements and then was emptied, it will have a non-null
d pointer, which wasn't taken into account in the comparison.
Fixes: QTBUG-109840
Pick-to: 6.5 6.4 6.2
Change-Id: I69ecc04064514f939896fffd17376aa18184653c
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This got lost during the QStringView port that happend in Qt 6.0
(commit 548dcef089) because
QString::operator+=(QStringView) does not copy the nullness of the right
side, whereas QString::operator+=(const QString &) does.
Pick-to: 6.2 6.4 6.5
Fixes: QTBUG-84315
Change-Id: Ide4dbd0777a44ed0870efffd17399b772d34fd55
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@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>
As discussed in API review, the default-constructed T() returned from
a mismatched data<T>() call is indistinguishable from a real T with
default state.
To make them distinguishable, return optional<T>. Call the new
function value<T>(), mimicking QVariant::value<T>(), and suggested in
API review, because data() is usually used to return raw pointers, not
values.
Remove the qWarning() on requestedType and actualType mismatch, as the
new function can be used in std::get_if/dynamic_cast-like if-then-else
chains, in which failure is part of the normal operation, and a
warning message misplaced:
if (auto loc = perm.value<QLocationPermission>())
~~~ use *loc ~~~
else if (auto con = perm.value<QContactsPermission>())
~~~ use *con ~~~
~~~ etc ~~~
Pick-to: 6.5
Change-Id: I799a58e930307323ebce8f9ac50a42455e9c017f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Following the QRect, add functions converting the QString to native
emscripten::val and back: fromJsString, toJsString
Change-Id: I2d0625ede3bbf7249e2e91b8de298b5b91df8ba2
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
The new test:
- checks the properties of stateful Q<Typed>Permissions work
- ensures that piping a Q<Typed>Permission through QPermission
maintains state
- also ensures that assignment of a Q<Typed>Permission to a
QPermission works (via QPermission(Type) + move ctor)
Pick-to: 6.5
Change-Id: I340e49b1ecc665702ccab26d9050ca158b0e7885
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
The test body has been inside an #if 0 for long, remove the test
altogether. The part that loads libthai does not check anyhing
meaningful.
Task-number: QTBUG-109954
Change-Id: I8ce006a14e4cf926b668e958d4b2343f965a5fb6
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
It had various QVERIFY()s of != and >= checks: convert these to
QCOMPARE_NE() and QCOMPARE_GE() checks.
Change-Id: Ida6f7dca726187f7837da0d805549d9c582f946a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
For most territories, if we specify only that territory, we should get
a locale specific to that territory. There are exceptions for various
reasons, but check that it's true in most cases, at least. In the
process, convert two QVERIFY(... == ...) into QCOMPARE(..., ...)
Task-number: QTBUG-64940
Change-Id: I7590f20f37b0b459aafb3d1d08f6eb77932fa027
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
To be extended as neeeded.
Pick-to: 6.5
Change-Id: I57d2f55f67de073fe3e4916b7ba655342cf661dc
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Just describe the row instead. We'd lose the original input in case of
failure, so I added a class to print that value on destruction. Example:
FAIL! : tst_QAlgorithms::countLeading64(0) Compared values are not the
same
Actual (qCountLeadingZeroBits(value)): 63
Expected (expected) : 64
Loc: [tests/auto/corelib/tools/qalgorithms/tst_qalgorithms.cpp(374)]
QWARN : tst_QAlgorithms::countLeading64(0) Original value was 0x1
Pick-to: 6.4 6.5
Fixes: QTBUG-109958
Change-Id: I69ecc04064514f939896fffd1738b1119cd80cf8
Reviewed-by: Dimitrios Apostolou <jimis@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
tst_qstringapisymmetry needs to use the same collation testability
criteria as tst_qcollator, that is, the locales that may be tested
without ICU and not on Mac nor Windows are only the system locale and
C locale.
Task-number: QTBUG-109954
Change-Id: I69f19ae28b3a16b3827c1eee62ae59fcfdf45209
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qcollator_posix.cpp is included if ICU is not used and the OS is not
Win nor macOS. Reflect that fact in tst_qcollator instead of using
alternative means which breaks with new platforms that use the
posix collator.
Task-number: QTBUG-109954
Change-Id: I592500ce9626efbcc9377cecf6641967f978c6da
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There are numerous conflicting symbols in the tst_qstringbuilder\d
variants when batching those together. Remove the linkage from symbols
by putting the common include stringbuilder.cpp in an unnamed
namespace.
Task-number: QTBUG-109954
Change-Id: Ic2a745795b57482c90c9def7667a1145cdb19854
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
In case of QT_FEATURE_timezone=OFF test should not be built
Change-Id: If667b9edb1d670b9ed8a62f301a7e5e21e7d2b4c
Reviewed-by: Kimmo Ollila <kimmo.ollila@qt.io>
Reviewed-by: Janne Koskinen <janne.p.koskinen@qt.io>
The multi-thread snippet in the documentation, when copied as is,
could actually crash because of the race condition between the main
thread and the thread that generate results for the promise.
This is fixed by explicitly calling QPromise::start().
Actually, the underlying snippet already has this call, it just was
not included in the documentation.
This patch modifies the documentation snippet to include calls to
both QPromise::start() and QPromise::finish().
Fixes: QTBUG-109230
Pick-to: 6.5 6.4 6.2
Change-Id: Ic25f31a6b3b16ba6bc06a0b199289c8c5d50bab6
Reviewed-by: Sona Kurazyan <kurazyan.sona@gmail.com>
Instead of the more verbose currentDateTime(QTZ::UTC).
Pick-to: 6.5
Change-Id: Ie759f4270b12fca39c458bf85c8296f5342033db
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
To support cancellation of continuations attached via the parent future,
we store a pointer to continuation future's data in parent. This
requires preserving the lifetime of continuation future's data while the
parent is still alive (see 24dedaeaa1).
This is achieved by capturing the promise in the continuation's lambda,
which is only cleaned up after the parent's data is destroyed. This is
already the case for continuations without context, but was overlooked
for continuations with context: they transfer the ownership of the
continuation promise to lambda passed to QMetaObject::invokeMethod(),
which destroys the lambda's context after it's run. As a result, the
continuation's promise (and data, if there are no other copies of it)
is also destroyed, leaving the parent pointing to deleted continuation
data.
To fix this, capture a copy of continuation future's ref-counted data in
the continuation's lambda. This will guarantee that the continuation
data remains alive until the parent is destroyed and the continuation
is cleaned up.
Fixes: QTBUG-108790
Pick-to: 6.5 6.4 6.2
Change-Id: Ief4b37f31e652988d13b03499505ac65c7889226
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Not all locales use ASCII hyphen-minus U+002D as minus sign. On macOS
using the nb_NO locale the U+2212 character is used instead when
displaying negative years. Verify that one of the two characters is
found.
Fixes: QTBUG-109853
Change-Id: I424539cc8d427ac199b4528e44bef98e45312d07
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is inherently faster than getting it in UTC from the underlying
native API stat call, then converting it to the Local Time Zone just to
compare them. The same goes for any use-case where you get a QDateTime
then the first thing you do is call t.to{Msec,Secs}SinceEpoch().
Change-Id: Ic13bcfd99b937c9f10f102ea7741832950a553c6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
With the methods that use helpers from qstring.cpp defined in the
latter.
Change-Id: I11d6b0bfb95efe34e56d33d2ecbfe8f4423a9e6c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Makes the pre-existing QFutureInterface functionality available via
the public QPromise API.
[ChangeLog][QtCore][QPromise] Added addResults() to report multiple
results at once.
Change-Id: I18e6ef2781df422020b9022d78d6c45107b01668
Reviewed-by: Sona Kurazyan <kurazyan.sona@gmail.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
In preparation to their deprecation / removal.
Change-Id: Ia073a9f7caabbc06063a1e416b23cdb12788b283
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
If a type is trivially default constructible, QMetaType (and QVariant)
think that it can be built and value-initialized by zero-filling a
region of storage and then "blessing" that storage as an actual instance
of the type to build. This is done as an optimization.
This doesn't work for all trivially constructible types. For instance,
on the Itanium C++ ABI, pointers to data members are actually
value-initialized (= zero-initialized, = initialized to null) with the
value -1:
https://itanium-cxx-abi.github.io/cxx-abi/abi.html#data-member-pointers
This means that a type like
struct A { int A::*ptr; };
is trivially constructible, but its value initialization is not
equivalent to zero-filling its storage.
Since C++ does not offer a type trait we can use for the detection that
we want to do here, and since we have also decided that Q_PRIMITIVE_TYPE
isn't that trait (it just means trivially copyable / destructible), I'm
rolling out a custom type trait for the purpose.
This type trait is private for the moment being (there's no
Q_DECLARE_TYPEINFO for it), and limited to the subset of scalar types
that we know can be value-initialized by memset(0) into their storage
(basically, all of them, except for pointers to data members).
The fix tries to keep the pre-existing semantics of
`QMetaType::NeedsConstruction`. Before, the flag was set for types which
were not trivially default constructible. That included types that
aren't default constructible, or types that cannot do so trivially.
I've left that meaning unchanged, and simply amended the "trivial" part
with the custom trait. A fix there (to clarify the semantics) can be
done as a separate change.
Change-Id: Id8da6acb913df83fc87e5d37e2349a4628e72e91
Pick-to: 6.5
Fixes: QTBUG-109594
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Turns out we don't support QStringView/QUtf8StringView comparison, and
the only reason the corresponding test succeeded was because it
contained a typo (QStringView instead of QUtf8StringView).
Fix the typo and disable the now-failing test.
Pick-to: 6.5 6.4 6.2
Change-Id: I2210a247aac66743851e53578172a563ee1e96f7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The existing symLinkTarget() always resolves the symlink target to an
absolute path; readSymLink() provides access to the relative path when
that is how the symlink references its target.
[ChangeLog][QtCore][QFileInfo] Added readSymLink() to read the symlink's
raw target, without resolving to an absolute path.
Fixes: QTBUG-96761
Change-Id: I360e55f1a3bdb00e2966229ea8de78cf29a29417
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QtBase didn't contain any checks for QT_RESTRICTED_CAST_FROM_ASCII, so
a recent addition to the QString::append/insert/prepend overload set
made calls with C string literal arguments ambiguous without the CI
noticing. We had a similar problem with QString::multiArg.
To increase test coverage, we now run tst_qstring two times:
- without any define
- with QT_RESTRICTED_CAST_FROM_ASCII (lots of changes necessary)
Most removals are expected, because they disable tests that check the
implicit conversions from QByteArray and const char*, but the
relational operators with QLatin1String objects might warrant fixing.
In some places, when the conversion wasn't the functionality under
test, replaced C string literals or QByteArrays with QLatin1String.
We should also test with QT_NO_CAST_FROM_ASCII, but that's even larger
surgery.
QString doesn't have a ctor from std::nullptr_t, so QString s =
nullptr; doesn't compile in C++17 mode, but does in C++20 mode, due to
the const char8_t* ctor.
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: I0c5a31719a4b8dd585dd748e0ca0d99964866064
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
ASan inserts a lot of function calls in between our calls, so they end
up in the backtrace and cause unexpected results.
Similar to c672f148db.
Fixes: QTBUG-109559
Pick-to: 6.4 6.5
Change-Id: I69ecc04064514f939896fffd1732dd2bc0317ae4
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
We only need to skip the backtrace ones, because there's no library
called "Qt6Core".
Pick-to: 6.4 6.5
Change-Id: I69ecc04064514f939896fffd1732dd680058ba6e
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reorganize them and fix the comment.
Pick-to: 6.4 6.5
Change-Id: I69ecc04064514f939896fffd1732dd57203cb21f
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
... in lieu of <cctype>'s toupper(), which is locale-dependent, and
out-of-line.
The code doesn't run into the toupper(i) issue in the Türkiye locale,
because we don't run tests in that locale and because 'i' is not a
valid format specifier, but don't let the next reader of the code
guess when the use of toAsciiUpper() provides unambiguous guidance.
Task-number: QTBUG-109235
Pick-to: 6.5
Change-Id: I8988f5190441e1ae5cb57370952cda70ca6bb658
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This makes it possible to process QML files using qmlcachegen, and
retain the file nodes in the resource file system, but remove their
actual content from the binary. To do so, you need to mark your files
with the QT_DISCARD_FILE_CONTENTS source file property.
Fixes: QTBUG-87676
Fixes: QTBUG-103481
Fixes: QTBUG-102024
Fixes: QTBUG-102785
Change-Id: I93d5a2bfca1739ff1e0f74c8082eb8aa451b9815
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: hjk <hjk@qt.io>
Check for state.remainingChars to signal an encoding error only after
the last chunk has been processed. Splitting surrogates at chunk
boundaries is normal operation, not an error. Only if this happens at
the end of the whole input should we raise an error.
Amends fa2153bd10.
Pick-to: 6.5
Change-Id: Id92e37becaed25bbc11e0c22dedc4d41fb23f92a
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
... not just those in the BMP.
The use of char32_t makes the isValid helper function easier to
read. Its passing to write() is enabled by the recent port to
QAnyStringView, which has a char32_t ctor.
Split into per-plane executions of the test function to avoid
running into timeouts on asan builds down the road.
As a drive-by, replace use of QPair with a proper struct, and
make the intervals symmetrically inclusive the bounds.
Pick-to: 6.5
Change-Id: I2c6858d7e6a88f448eac1b1e124d7d7b82828d4c
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Some more modern protocols like Bluetooth LE transmit data in little
endian. QtBluetooth will benefit from this.
Change-Id: Id8e48e8f498c4a029619fffd1728c94ddd444537
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
This is inspired by QBluetoothUuid's quint128, but with a better
name. It also matches systemd's sd_id128.
Change-Id: Id8e48e8f498c4a029619fffd172893dc1545adda
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
WHEN writing an invalid character, THEN we expect the writer to report
an error.
The old code had it the wrong way around. It checked that WHEN the
writer reports an error, THEN the character was invalid.
The formulations are equivalent, but the latter is mixing up cause and
effect, making it less clear what's being checked (QXmlStreamWriter,
not isValidSingleTextChar()), so swap.
Pick-to: 6.5 6.4 6.2
Change-Id: I703de9ddde98d9913977a913f671472930735900
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Mate Barany <mate.barany@qt.io>
This improves the runtime of this particular test function by
almost 17% on my machine.
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: Icd77cdda92374b92121988c99e56787d405fa2d9
Reviewed-by: Mate Barany <mate.barany@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
These tests exhibit weird crashes when run under ASan, but sometimes
they fail sometimes they don't. Pending more insight, just skip this
test under that configuration.
Fixes: QTBUG-109329
Change-Id: I49d940de419f7166aab0da0b8c2b44297c4b6d74
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
in our tests.
They are not needed anymore since
d20f4ae706 got merged and the
QT_ANDROID_PACKAGE_SOURCE_DIR property is read at generation time
rather than configure time.
This means the
qt_internal_add_test ->
qt_internal_add_executable ->
_qt_internal_android_executable_finalizer ->
qt_android_generate_deployment_settings
calls take care of generation the right value for the property even
with CMake 3.16.
Remove the direct qt_android_generate_deployment_settings calls,
in preparation for their deprecation in public api.
Pick-to: 6.5
Task-number: QTBUG-88506
Task-number: QTBUG-88840
Task-number: QTBUG-108508
Change-Id: Ief1d0f9f620bd37beeedde26dedb66f728fa4a6f
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
QBuffer::open() was only documented as \reimp, so its behavior
regarding WriteOnly was never actually described.
Add a test and document the outcome.
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: I75c49cd3f6a1961bcaece4a92a4e479bb3300d36
Reviewed-by: Mate Barany <mate.barany@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp:1174:80:
warning: overflow in expression; result is -9223372036854775808 with
type 'long long' [-Winteger-overflow]
const qlonglong longMaxPlusOne =
static_cast<qlonglong>(Bounds::max()) + 1;
tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp:1175:81:
warning: overflow in expression; result is 9223372036854775807 with type
'long long' [-Winteger-overflow]
const qlonglong longMinMinusOne =
static_cast<qlonglong>(Bounds::min()) - 1;
I usually build with GCC, but building with Clang for clazy-standalone,
so I saw these two warnings 500+ times, enough already. :)
Change-Id: Idd86af568ffe89ae49b2a3f9bbeedf312de5e631
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
It looks like AAssetDir_getNextFileName is not enough.
Directories that contain only other directories (no files)
were not listed.
On the other hand, AAssetManager_openDir() will always return a
pointer to initialized object (even if the specified directory does not
exists), so we can't just leave only it here.
Using FolderIterator as a last resort. This approach should not be too
time consuming.
As part of this fix, add some unit tests to cover/ensure assets
listing/iterating works as expected.
Fixes: QTBUG-107627
Pick-to: 6.4 6.2 5.15
Change-Id: Id375fe8f99f4ca3f8cad4756f783ffafe5c074df
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
As foreshadowed when QDateTime adapted to route all QTimeSpec use
through QTimeZone, this commit deprecates the old API in favor of the
newly more capable QTimeZone-based API.
Fixes: QTBUG-108199
Change-Id: I9a3f9f94d4a5d8cc229db72b3e4731a9e318a076
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This saves (mostly in corelib/time/) some complications that used to
arise from needing different code-paths for different time-specs.
Task-number: QTBUG-108199
Change-Id: I5dbd09859fce7599f1ba761f8a0bfc4633d0bef9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
For now, just addDays() and the springForward() test, as proofs of
concept for future work to be more systematic.
Change-Id: Id2c4e9ad304d3aef6fdfb48ae6328df8c638c934
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Free most APIs using QTimeZone from feature timezone and route all
APIs taking a naked QTimeSpec via these, in preparation for their
eventual deprecation. Since qtimezone.h includes qdatetime.h (and MSVC
blocks our ability to remove the need for that), qdatetime.h's
declarations can't use a default value for QTimeZone parameters; so
add overloads taking no zone (or spec) to handle that.
[ChangeLog][QtCore][QDateTime] All QDateTime APIs involving a
Qt::TimeSpec can now be routed via QTimeZone's lightweight time
description support, saving the need to have different code paths for
different time specs. In the process, QDateTime gains a
timeRepresentation() method to return a QTimeZone reporting the
(possibly lightweight) time description it uses. (The older timeZone()
method always returns a non-lightweight QTimeZone, whose timeSpec() is
Qt::TimeZone.)
Task-number: QTBUG-108199
Change-Id: I23e43401eb2dbe9b7b534ca6401389920dd96b3c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
[ChangeLog][QtCore][QTimeZone] QTimeZone is now always defined;
feature timezone now controls most of its prior API and some new API
is added, most of it always present, to enable QTimeZone to package a
Qt::TimeSpec and, for Qt::OffsetFromUTC, its offset. Prior to this
change, APIs using Qt::TimeSpec had to provide a separate function
taking a QTimeZone alongside a function taking a Qt::TimeSpec and
optional offset; it will now be possible to unify these into a single
function taking a QTimeZone. Adaptation of other Qt classes to do so
shall follow.
Task-number: QTBUG-108199
Change-Id: If5ec3cc63920af882ebb333bf69cde266b1f6ad7
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
... where 50b05e3e2a originally added
them.
While qtversion.h is included in qglobal.h, using qtversion.h directly
is a tiny step towards removing qglobal.h includes from our code-base,
so don't let this opportunity go to waste.
Change-Id: I28eaca1f4e250fc9e12e2ce6a6f94670a1d08dbe
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Add the full set of substringing operations:
- mid/left/right (old-style)
- sliced/first/last (new style)
- chop/chopped/truncate
The implementation is copied from QUtf8StringView, adjusted to use
sliced() instead of the (ptr, n) ctor, so we need to deal with the tag
twiddling only once, in sliced().
The documentation is also copied from QUtf8StringView.
[ChangeLog][QtCore][QAnyStringView] Added substring functions
sliced(), first(), last(), chop()/chopped(), truncate().
Change-Id: Ief454e9694519e97d9146fa84bc05dda1dded046
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Mate Barany <mate.barany@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
In the process, split some long lines. The test relies on omitting the
hour (so as to get the default, 0) from both the format string and the
string parsed, so as to test that the parser correctly handles the
corner case where the zone skips the first hour of the day. This was
not entirely obvious when reading the row data, so make it explicit in
a comment.
Change-Id: I919b292b78bd399a8749806a0e913d43f5b414e1
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mate Barany <mate.barany@qt.io>
Test a few more cases are correctly handled.
Change-Id: I7f286ba93f59bf0168cac789cd30590f40e98cee
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The spec deseralized isn't a Qt::TimeSpec; handle it correctly instead
of taking for granted that QDateTimePrivate::Spec's values happen to
match.
Change-Id: I67f3c960f3a3b90cdad3c1eca673f7ec8fd10b82
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Mostly pedagogic checks in operator_insert_extract(), but also
sanity-checking, to confirm spec conversions produce results equal to
what each came from.
In daylightTransitions(), verify the spring forward goes from standard
time to daylight-saving time.
Change-Id: Ieb9c603ee2eadecea055da4e8889528161f4d999
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use QCOMPARE(a, b) in place of QVERIFY(a == b), similar with
QCOMPARE_LT() and QCOMPARE_LE(); and use a scope-guard to emit a
message on failure instead of incurring the cost of building a string
for the message, even when the passing test doesn't need it.
Change-Id: I3884bc40e89a4b1ba881968b99faab27d4b1abc9
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Principally to get Qt::LocalTime mentions out of the way ahead of the
QTimeZone work on Qt::TimeSpec, but also mop up trailing 0 parameters
to QTime for seconds and milliseconds.
Change-Id: I51041582faae100894a567c9e5ae96a60a3b2d8c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Mate Barany <mate.barany@qt.io>
Left over from long ago, making confused use of Qt::hex.
Change-Id: I7f411e4888ee1a637d2212fd6976dd003f8da9ce
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Several were overlong (or soon to get so by being made longer); others
were inconsistent with neighbors; one was inconsistent with itself.
Change-Id: I272680499605a757e4827d27021bf234a91cf77a
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As a result, also make sure the test will fail if output to debug
stream doesn't produce the expected result.
Change-Id: I9914c9c41c8d8b79f32dfb8e0c735f12e2d59f5e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Put core includes all in a common form, sort alphabetically.
Remove a stray blank line.
Change-Id: I211c6b407f5e49d907cb065521883567f1dd30f4
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Comparing to true and false doesn't enrich the output.
Change-Id: Ie26a3f3d584f88310b8d4a31cad07be8dc8cb646
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Same fix as in tst_qbytearray's QCOMPARE() in
cb9715557c.
Pick-to: 6.4 6.2
Change-Id: I2222d9015ae7121a2fbcf5b936b27de20e873064
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There is no technical reason why qFatal shouldn't support categorized
logging, nor have a streaming version.
There is perhaps an API issue, that is, a streaming syntax may encourage
users to do "too much":
qFatal() << gatherLogs() << saveDatabase() << ...;
and that sounds like a bad idea in case the application is in an
unrecoverable state that requires immedate terminatation (indeed,
through qFatal). I'd err on the side of providing the extra convenience.
This commits adds overloads of QMessageLogger::fatal to support
categorized logging (note that fatal messages cannot be disabled),
the relative qCFatal macro, as well as overloads for streaming.
[ChangeLog][QtCore][QMessageLogger] QMessageLogger::fatal now supports
categorized logging, for instance using the qCFatal(category) macro.
Moreover, qFatal() and qCFatal() now support streaming of values
to be printed in the fatal message.
Change-Id: Ia57f25f5c85fca97e5fcf27eaa760dbde09cba0e
Fixes: QTBUG-8298
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
For both the [4, 7] and [8,15] length cases, we can perform the same
technique: perform two overlapped loads, zero-extend, then perform two
overlapped stores. The 8-character case could be done in a single
load/store pair, but is not worth the extra conditionals. And it should
have the exact same performance numbers whether we use non-overlapping
4-character operations or completely-overlapping 8-character ones (I
*think* the full overlap is actually better).
The 4-character operation is new in this commit. That reduces the
non-vectorized, unrolled to at most 3 characters.
Change-Id: Ib42b3adc93bf4d43bd55fffd16c257ada774236a
Reviewed-by: Lars Knoll <lars@knoll.priv.no>
For QSet, the key_type is const, so can't test assiging to it.
Pick-to: 6.4
Change-Id: I9d363ef3fe52646b937d6a422227b19c48fdaf1f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Because they are too convenient to leave out.
Change-Id: I844cfb794ce0f575c2c65075d9051b0b878a434f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Overloading insert is a bit tricky since the size might change after
the conversion so either the tail has to be moved twice or a temporary
buffer is needed. For now, add an ineffective but simple overload as in
the case of the const char *s overload, and do the performance
optimization in a follow-up task (QTBUG-108546).
[ChangeLog][QtCore][QString] Added insert(QUtf8StringView) overload.
Task-number: QTBUG-103302
Change-Id: If01c216ff626da29abb43eb68d4de82824f3bfba
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The += operator is already overloaded to handle QStringView and
QLatin1String - add the missing QUtf8StringView overload.
[ChangeLog][QtCore][QString] Added operator+=(QUtf8StringView)
overload.
Task-number: QTBUG-103302
Change-Id: Iec6940bad7866310c826a130b98accebc3c82aa8
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Add the missing overload, among other things it is needed to
implement QTBUG-103302.
[ChangeLog][QtCore][QString] Added append(QUtf8StringView)
overload.
Task-number: QTBUG-103302
Change-Id: I576f73c1919e3a1f1a315d0f82c708e835686eb1
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Also add optimizations for more string comparisons and add tests and
benchmarks.
[ChangeLog][QtCore][QString] Added utf-8 case-insensitive comparisons
Fixes: QTBUG-100235
Change-Id: I7c0809c6d80c00e9a5d0e8ac3ebb045cf7004a30
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
During the implementation of QString::append(QUtf8StringView) it has
become apparent that the testing is insufficient as it did not warn
about an extra growth. The following tests have been added that append:
- y-umlaut and greek letter small theta (2 UTF-8 code units => 1 UTF-16)
- devanagri letter ssa (3 UTF-8 code units => 1 UTF-16)
- chakma digit zero (4 UTF-8 code units => 2 UTF-16 code units)
- some combinations of the above
Pick-to: 6.4 6.2
Task-number: QTBUG-103302
Change-Id: I981213c296bafc81663b08c0f1f339bbd8a96485
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
During the implementation of QString::append(QUtf8StringView) it has
become apparent that the testing is insufficient as it did not warn
about an extra growth. The following tests have been added that append:
- y-umlaut and greek letter small theta (2 UTF-8 code units => 1 UTF-16)
- devanagri letter ssa (3 UTF-8 code units => 1 UTF-16)
- chakma digit zero (4 UTF-8 code units => 2 UTF-16 code units)
- some combinations of the above
Pick-to: 6.4 6.2
Task-number: QTBUG-103302
Change-Id: I3d81cf10b7eb74433ce5bea9b92ce6bce1230dcd
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
During the implementation of QString::append(QUtf8StringView) it has
become apparent that the testing is insufficient as it did not warn
about an extra growth. The following tests have been added that append:
- y-umlaut and greek letter small theta (2 UTF-8 code units => 1 UTF-16)
- devanagri letter ssa (3 UTF-8 code units => 1 UTF-16)
- chakma digit zero (4 UTF-8 code units => 2 UTF-16 code units)
- some combinations of the above
Note that this also affects operator_pluseq_data, which is basically
a wrapper around append_data.
Pick-to: 6.4 6.2
Task-number: QTBUG-103302
Change-Id: I09ed950e3f0e71ae9ae85a455f42e130887f1109
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Implements an adaptor from the notification signal of a Q_PROPERTY to
QBindable. The Q_PROPERTY does not need to be BINDABLE, but can still
be bound or used in a binding.
[ChangeLog][Core][Q_PROPERTY] Q_PROPERTYs without BINDABLE can be wrapped in QBindable to make them usable in bindings
Change-Id: Id0ca5444b93a371ba8720a38f3607925d393d98a
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Both QStringView and QAnyStringView implicitly convert from any
container with a fitting value_type, and working std::data, std::size,
std::begin and std::end.
Add these missing operations (and complementary ones) to XmlStringRef,
so it implicitly converts to QStringView and QAnyStringView, too.
Add a check to that effect and remove the now-superfluous operator
QStringView().
Task-number: QTBUG-103302
Change-Id: I89d586cf64447a82022e06d546d7ee8339fc6dc7
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
I've reserved the IDs for int128, uint128, bfloat16, and float128,
because the mask in qvariant.cpp's qIsNumericType() requires primitives
to be less than 64 to operate properly.
Added a QMetaType/QDataStream test to confirm it is indeed built-in.
Change-Id: I3d74c753055744deb8acfffd17247f7f57bada02
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The C++ equivalent is std::float16_t, defined in P1467[1], and is coming
with GCC 13 both in native mode (for x86, using AVX512FP16) and in
emulated mode. The C and C++ types will be the same type (<stdfloat>
simply typedefs).
qfloat16 will need to remain a wrapper with an integer member to keep
ABI with previous Qt versions. Because it is a trivially-copyable small
type, it gets currently passed in registers; the presence of the integer
member means it gets passed in general-purpose registers, while a single
_Float16 member would be passed in a floating-point register. See:
https://gcc.godbolt.org/z/8fEendjff
[1] https://wg21.link/p1467
Change-Id: I8a5b6425b64a4e319b94fffd161be56397cb48e6
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
... where checks for QByteArray existed before.
The checks we can't add are
- left/right/mid (legacy APIs not implemented in QBAV)
- several relational operators, d/t ambiguities. Created
QTBUG-108805 to track these.
Task-number: QTBUG-108805
Pick-to: 6.4 6.2
Change-Id: I30cc9b29a228d69d32af51234f2c28221478a75c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
It's not intuitive, so check lest people break it.
Pick-to: 6.4 6.2
Change-Id: I2435cd69be7b77a6ae59cdc7b5fb99658cfc42fd
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Underflows should be treated the same as overflows.
Fixes: QTBUG-108628
Change-Id: I23aa7bbe1d103778cefca08bd3e584e72f306583
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Rework QSimpleParsedNumber to store a qsizetype whose sign serves as
ok flag (positive is ok, zero and negative are not) and magnitude is
the number of characters used. This replaces an endptr that was set to
null to indicate !ok, but that deprived us of end-of-parse
information, which is needed for number-parsing. In particular, JS's
parsing of numbers accepts overflow (where qstrntod() flags it as
invalid) as infinity; so qstrntod() does need to say how long the
overflowing (but JS-valid, none the less) number-text was.
Modify all callers of functions using this (recently-introduced) type
and add tests that fail without this fix.
Fixes: QTBUG-108628
Change-Id: I416cd213e1fb8101b1af5a6d43615b970a5db9b4
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
- If this string is not shared, modify it directly
- If this string is shared, instead of detaching copy the characters
from this string, except the ones that are going to be removed, to a
new string and swap it. This is more efficient than detaching, which
would copy the whole string including the characters that are going
to be removed.
This affects:
remove(const QString &str, Qt::CaseSensitivity cs)
remove(QLatin1StringView str, Qt::CaseSensitivity cs)
Adjust the unittests to test both code paths.
[ChangeLog][QtCore][QString] Improved the performance of
QString::remove() by avoiding unnecessary data copying. Now, if this
string is (implicitly) shared with another, instead of copying
everything and then removing what we don't want, the characters from
this string are copied to the destination, except the ones that need to
be removed.
Task-number: QTBUG-106181
Change-Id: Id8eba59a44bab641cc8aa662eb45063faf201183
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This tests that strings using the first Unicode code-point of such a
multi-character token don't get recognized as "valid" number strings.
This would catch an implementation issue if the parsing code
mistakenly matched against only the first code-point of each "single
character" token.
It also adds tests of integer formatting, with multi-character sign,
and reworks some QStringView().toString()s to use u"..."_s.
Task-number: QTBUG-107801
Change-Id: I7b868ce2955bb322b3ecfc200438a21437090a0c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Most of them were easy to change. The pair one was a bit of a stretch,
but still worked. I've removed the lines on QPair, since QPair is
std::pair in Qt 6.
Change-Id: I3d74c753055744deb8acfffd17246ec98c583d08
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
qIsNumericType does not return true for enum types, which meant we never
called numericCompare() or numericEquals() when one of the types was an
enum.
Task-number: QTBUG-108188
Change-Id: I3d74c753055744deb8acfffd172449c68af19367
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The code implementing the C++ rules of type promotion and conversion
was too pedantic. There's no need to follow the letter of the standard,
not when we can now assume that everything is two's complement (this was
true for all architectures we supported when I wrote this code in 2014,
but wasn't required by the standard).
So we can reduce this to fewer comparisons and fewer rules, using the
size of the type, not just the type ID.
Change-Id: I3d74c753055744deb8acfffd172446b02444c0c0
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The insets used to calculate the correct height were not the best
choice. It used display cutout insets which would work correctly on
most devices, but in the case of an emulator or a device without a
camera, it could fail to calculate correctly.
Task-number: QTBUG-107604
Task-number: QTBUG-107709
Task-number: QTBUG-107523
Pick-to: 6.4 6.4.1 6.2 5.15
Change-Id: I8c4da83ae7359a0c133dbeb02dbd2cd260565f78
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Basic unitttest and one to verify erase returns iterator, not
const_iterator.
Change-Id: I44c3b82b4686ff3809648063376f5e36fb7e181d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
- If the string isn't shared, don't call detach(), instead remove characters
matching ch, and resize()
- If the string is shared, create a new string, and copy all characters
except the ones that would be removed, see task for details
Update unittets so that calls to this overload of remove() test both code
paths (replace() calls remove(QChar, cs) internally).
Drive-by change: use QCOMPARE() instead of QTEST()
Task-number: QTBUG-106181
Change-Id: I1fa08cf29baac2560fca62861fc4a81967b54e92
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
- If this bytearray isn't shared call d->erase() as needed
- if it's shared, instead of detaching, create a new bytearray, and copy
all characters except for the ones that would be removed
See task for details.
Adjust unittest to test both code paths.
Task-number: QTBUG-106182
Change-Id: I806e4d1707004345a2472e056905fbf675f765ab
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is a semantic patch using ClangTidyTransformator as in
qtbase/df9d882d41b741fef7c5beeddb0abe9d904443d8, but extended to
handle typedefs and accesses through pointers, too:
const std::string o = "object";
auto hasTypeIgnoringPointer = [](auto type) { return anyOf(hasType(type), hasType(pointsTo(type))); };
auto derivedFromAnyOfClasses = [&](ArrayRef<StringRef> classes) {
auto exprOfDeclaredType = [&](auto decl) {
return expr(hasTypeIgnoringPointer(hasUnqualifiedDesugaredType(recordType(hasDeclaration(decl))))).bind(o);
};
return exprOfDeclaredType(cxxRecordDecl(isSameOrDerivedFrom(hasAnyName(classes))));
};
auto renameMethod = [&] (ArrayRef<StringRef> classes,
StringRef from, StringRef to) {
return makeRule(cxxMemberCallExpr(on(derivedFromAnyOfClasses(classes)),
callee(cxxMethodDecl(hasName(from), parameterCountIs(0)))),
changeTo(cat(access(o, cat(to)), "()")),
cat("use '", to, "' instead of '", from, "'"));
};
renameMethod(<classes>, "count", "size");
renameMethod(<classes>, "length", "size");
except that the on() matcher has been replaced by one that doesn't
ignoreParens().
a.k.a qt-port-to-std-compatible-api V5 with config Scope: 'Container'.
Added two NOLINTNEXTLINEs in tst_qbitarray and tst_qcontiguouscache,
to avoid porting calls that explicitly test count().
Change-Id: Icfb8808c2ff4a30187e9935a51cad26987451c22
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
- If this string isn't shared, don't call detach, instead use ->erase() as
needed
- If this string is shared, create a new string, and copy all elements
except the ones that would be removed, see task for details
Update unittest to test both code paths.
Task-number: QTBUG-106181
Change-Id: I4c73ff17a6fa89ddcf6966f9c5bf789753f6d39e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
With the introduction of QAnyStringView, overloading based on UTF-8
and Latin-1 is becoming more common. Often, the two overloads can
share the processing backend, because we're only interested in the
US-ASCII subset of each.
But if they can't, we need a faster way to convert L1 into UTF-8 than
going via UTF-16. This is where the new private API comes in.
Eventually, we should have the converse operation, too, to complete
the set of direct conversions between the possible three
QAnyStringView encodings L1/U8/U16, but this direction is easier to
code (there are no error cases) and more immediately useful, so
provide L1->U8 alone for now.
Change-Id: I3f7e1a9c89979d0eb604cb9e42dedf3d514fca2c
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Borrowed from tst_qtemporaryfile with some changes.
Change-Id: I596ddd0ac8dbe10edd63e481198064dcec15d3e6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qhashfunctions.h defines a catch-all 2-arguments qHash(T, seed)
in order to support datatypes that implement a 1-argument overload
of qHash (i.e. qHash(Type)). The catch-all calls the 1-argument
overload and XORs the result with the seed.
The catch-all is constrained on the existence of such a 1-argument
overload. This is done in order to make the catch-all SFINAE-friendly;
otherwise merely instantiating the catch-all would trigger a hard error.
Such an error would make it impossible to build a type trait that
detects if one can call qHash(T, size_t) for a given type T.
The constraint itself is called HasQHashSingleArgOverload and lives in a
private namespace.
It has been observed that HasQHashSingleArgOverload misbehaves for
some datatypes. For instance, HasQHashSingleArgOverload<int> is actually
false, despite qHash(123) being perfectly callable. (The second argument
of qHash(int, size_t) is defaulted, so the call *is* possible.)
--
Why is HasQHashSingleArgOverload<int> false?
This has to do with how HasQHashSingleArgOverload<T> is implemented: as
a detection trait that checks if qHash(declval<T>()) is callable.
The detection itself is not a problem. Consider this code:
template <typename T>
constexpr bool HasQHashSingleArgOverload = /* magic */;
class MyClass {};
size_t qHash(MyClass);
static_assert(HasQHashSingleArgOverload<MyClass>); // OK
Here, the static_assert passes, even if qHash(MyClass) (and MyClass
itself) were not defined at all when HasQHashSingleArgOverload was
defined.
This is nothing but 2-phase lookup at work ([temp.dep.res]): the
detection inside HasQHashSingleArgOverload takes into account the qHash
overloads available when HasQHashSingleArgOverload was declared, as well
as any other overload declared before the "point of instantiation". This
means that qHash(MyClass) will be visible and detected.
Let's try something slightly different:
template <typename T>
constexpr bool HasQHashSingleArgOverload = /* magic */;
size_t qHash(int);
static_assert(HasQHashSingleArgOverload<int>); // ERROR
This one *does not work*. How is it possible? The answer is that 2-phase
name lookup combines the names found at definition time with the names
_found at instantiation time using argument-dependent lookup only_.
`int` is a fundamental type and does not participate in ADL. In the
example, HasQHashSingleArgOverload has actually no qHash overloads to
even consider, and therefore its detection fails.
You can restore detection by moving the declaration of the qHash(int)
overload *before* the definition of HasQHashSingleArgOverload, so it's
captured at definition time:
size_t qHash(int);
template <typename T>
constexpr bool HasQHashSingleArgOverload = /* magic */;
static_assert(HasQHashSingleArgOverload<int>); // OK!
This is why HasQHashSingleArgOverload<int> is currently returning
`false`: because HasQHashSingleArgOverload is defined *before* all the
qHash(fundamental_type) overloads in qhashfunctions.h.
--
Now consider this variation of the above, where we keep the qHash(int)
overload after the detector (so, it's not found), but also prepend an
Evil class implicitly convertible from int:
struct Evil { Evil(int); };
size_t qHash(Evil);
template <typename T> constexpr bool HasQHashSingleArgOverload = /* magic */;
size_t qHash(int);
static_assert(HasQHashSingleArgOverload<int>); // OK
Now the static_assert passes. HasQHashSingleArgOverload is still not
considering qHash(int) (it's declared after), but it's considering
qHash(Evil). Can you call *that* one with an int? Yes, after a
conversion to Evil.
This is extremely fragile and likely an ODR violation (if not ODR, then
likely falls into [temp.dep.candidate/1]).
--
Does this "really matter" for a type like `int`? The answer is no. If
HasQHashSingleArgOverload<int> is true, then a call like
qHash(42, 123uz);
will have two overloads in its overloads set:
1) qHash(int, size_t)
2) qHash(T, size_t), i.e. the catch-all template. To be pedantic,
qHash<int>(const int &, size_t), that is, the instantiation of the
catch-all after template type deduction for T (= int)
([over.match.funcs.general/8]).
Although it may look like this is ambiguous as both calls have perfect
matches for the arguments, 1) is actually a better match than 2) because
it is not a template specialization ([over.match.best/2.4]).
In other words: qHash(int, size_t) is *always* called when the argument
is `int`, no matter the value of HasQHashSingleArgOverload<int>. The
catch-all template may be added or not to the overload set, but it's
a worse match anyways.
--
Now, let's consider this code:
enum MyEnum { E1, E2, E3 };
qHash(E1, 42uz);
This code compiles, although we do not define any qHash overload
specifically for enumeration types (nor one is defined by MyEnum's
author).
Which qHash overload gets called? Again there are two possible
overloads available:
1) qHash(int, size_t). E1 can be converted to `int` ([conv.prom/3]),
and this overload selected.
2) qHash(T, size_t), which after instantiation, is qHash<MyEnum>(const
MyEnum &, size_t).
In this case, 2) is a better match than 1), because it does not require
any conversion for the arguments.
Is 2) a viable overload? Unfortunately the answer here is "it depends",
because it's subject to what we've learned before: since the catch-all
is constrained by the HasQHashSingleArgOverload trait, names introduced
before the trait may exclude or include the overload.
This code:
#include <qhashfunctions.h>
enum MyEnum { E1, E2, E3 };
qHash(E1, 42uz);
static_assert(HasQHashSingleArgOverload<MyEnum>); // ERROR
will fail the static_assert. This means that only qHash(int, size_t) is
in the overload set.
However, this code:
struct Evil { Evil(int); };
size_t qHash(Evil);
#include <qhashfunctions.h>
enum MyEnum { E1, E2, E3 };
qHash(E1, 42uz);
static_assert(HasQHashSingleArgOverload<MyEnum>); // OK
will pass the static_assert. qHash(Evil) can be called with an object of
type MyEnum after an user-defined conversion sequence
([over.best.ics.general], [over.ics.user]: a standard conversion
sequence, made of a lvalue-to-rvalue conversion + a integral promotion,
followed by a conversion by constructor [class.conv.ctor]).
Therefore, HasQHashSingleArgOverload<MyEnum> is true here; the catch-all
template is added to the overload set; and it's a best match for the
qHash(E1, 42uz) call.
--
Is this a problem? **Yes**, and a huge one: the catch-all template does
not yield the same value as the qHash(int, size_t) overload. This means
that calculating hash values (e.g. QHash, QSet) will have different
results depending on include ordering!
A translation unit TU1 may have
#include <QSet>
#include <Evil>
QSet<MyEnum> calculateSet { /* ... */ }
And another translation unit TU2 may have
#include <Evil>
#include <QSet> // different order
void use() {
QSet<MyEnum> set = calculateSet();
}
And now the two TUs cannot exchange QHash/QSet objects as they would
hash the contents differently.
--
`Evil` actually exists in Qt. The bug report specifies QKeySequence,
which has an implicit constructor from int, but one can concoct infinite
other examples.
--
Congratulations if you've read so far.
=========================
=== PROPOSED SOLUTION ===
=========================
1) Move the HasQHashSingleArgOverload detection after declaring the
overloads for all the fundamental types (which we already do anyways).
This means that HasQHashSingleArgOverload<fundamental_type> will now
be true. It also means that the catch-all becomes available for all
fundamental types, but as discussed before, for all of them we have
better matches anyways.
2) For unscoped enumeration types, this means however an ABI break: the
catch-all template becomes always the best match. Code compiled before
this change would call qHash(int, size_t), and code compiled after this
change would call the catch-all qHash<Enum>(Enum, size_t); as discussed
before, the two don't yield the same results, so mixing old code and new
code will break.
In order to restore the old behavior, add a qHash overload for
enumeration types that forwards the implementation to the integer
overloads (using qToUnderlying¹).
(Here I'm considering the "old", correct behavior the one that one gets
by simply including QHash/QSet, declaring an enumeration and calling
qHash on it. In other words, without having Evil around before including
QHash.)
This avoids an ABI break for most enumeration types, for which one
does not explicitly define a qHash overload. It however *introduces*
an ABI break for enumeration types for which there is a single-argument
qHash(E) overload. This is because
- before this change, the catch-all template was called, and that
in turn called qHash(E) and XOR'ed the result with the seed;
- after this change, the newly introduced qHash overload for
enumerations gets called. It's very likely that it would not give
the same result as before.
I don't have a solution for this, so we'll have to accept the ABI
break.
Note that if one defines a two-arguments overload for an enum type,
then nothing changes there (the overload is still the best match).
3) Make plans to kill the catch-all template, for Qt 7.0 at the latest.
We've asked users to provide a two-args qHash overload for a very long
time, it's time to stop working around that.
4) Make plans to switch from overloading qHash to specializing std::hash
(or equivalent). Specializations don't overload, and we'd get rid of
all these troubles with implicit conversions.
--
¹ To nitpick, qToUnderlying may select a *different* overload than
the one selected by an implicit conversion.
That's because an unscoped enumeration without a fixed underlying type
is allowed to have an underlying type U, and implicitly convert to V,
with U and V being two different types (!).
U is "an integral type that can represent all the enumerator values"
([dcl.enum/7]). V is selected in a specific list in a specific order
([conv.prom]/3). This means that in theory a compiler can take enum E {
E1, E2 }, give it `unsigned long long` as underlying type, and still
allow for a conversion to `int`.
As far as I know, no compiler we use does something as crazy as that,
but if it's a concern, it needs to be fixed.
[ChangeLog][Deprecation Notice] Support for overloads of qHash with only
one argument is going to be removed in Qt 7. Users are encouraged to
upgrade to the two-arguments overload. Please refer to the QHash
documentation for more information.
[ChangeLog][Potentially Binary-Incompatible Changes] If an enumeration
type for which a single-argument qHash overload has been declared is
being used as a key type in QHash, QMultiHash or QSet, then objects of
these types are no longer binary compatible with code compiled against
an earlier version of Qt. It is very unlikely that such qHash overloads
exist, because enumeration types work out of the box as keys Qt
unordered associative containers; users do not need to define qHash
overloads for their custom enumerations. Note that there is no binary
incompatibity if a *two* arguments qHash overload has been declared
instead.
Fixes: QTBUG-108032
Fixes: QTBUG-107033
Pick-to: 6.2 6.4
Change-Id: I2ebffb2820c553e5fdc3a341019433793a58e3ab
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Some of the entries in QLocale's single_character_data[] table are
not, in fact, single characters; some RTL languages include
bidi-markers in some of the fields, some locales use some denotation
of "times ten to the power" as the exponent separator. There may be
further complications, but let's just get some tests in that verify we
are correctly serializing numbers in these locales. Include some
parsing tests to show that we are indeed failing them.
Task-number: QTBUG-107801
Change-Id: Iab9bfcea5fdcfcb991451920c9531e0e67d02913
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
%.f should be handled like %.0f. You probably don't want it for strings,
though.
Fixes: QTBUG-107991
Pick-to: 6.2 6.4
Change-Id: I07ec23f3cb174fb197c3fffd1721a941fbcf15e1
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
I'm not entirely sure whether this is a toolchain bug or if this is
intended. This commit ODR-uses all the static inline variables in
QOperatingSystemVersion so they are added to the list of exported
symbols in QtCore.
On Windows:
$ objdump -p bin/Qt6Core.dll | grep Windows11E
[2534] _ZN23QOperatingSystemVersion9Windows11E
On Linux:
$ eu-readelf --dyn-syms lib/libQt6Core.so | grep Windows11E
1985: 0000000000575430 16 OBJECT GNU_UNIQUE PROTECTED 18 _ZN23QOperatingSystemVersion9Windows11E@@Qt_6
Pick-to: 6.4
Change-Id: Ia317fd249bcd80dbd02c198803a3a61178c0c219
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
It seems the value name correction is not needed at all,
and we must not do such correction.
Amends commit 738e05a55a
Task-number: QTBUG-107794
Change-Id: I903a762aafab4b55275beb8438e6769285821567
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Removes a warning in the build.
Pick-to: 6.4
Change-Id: I07ec23f3cb174fb197c3fffd17215c40b40333cb
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Amends edd983071e.
Remove redundant calls to AAssetDir_getNextFileName() in
AndroidAbstractFileEngine::setFileName(). It's enough to check
if AAssetManager_open() returns null and AAssetManager_openDir() is
valid for the provided asset file name.
As part of this fix, add some unit tests to cover/ensure assets
listing/iterating works as expected.
Fixes: QTBUG-107627
Pick-to: 6.4 6.2 5.15
Change-Id: I37ae9cb64fbbc60699bb748895f77fd6a34fae1f
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
To allow the user to customize the C++ code that QDoc sees, so as to be
able to work-around some limitations on QDoc itself, QDoc defines two
symbols: Q_QDOC and Q_CLANG_QDOC, both of which are "true" during an
entire execution of QDoc.
At a certain point in time, QDoc allowed the user the choice between a
custom C++ parser and a Clang based one.
The Q_QDOC symbol would always be defined while the Q_CLANG_QDOC symbol
would be defined only when the Clang based parser was chosen.
In more recent times, QDoc always uses a Clang based parser, such that
both Q_CLANG_QDOC and Q_QDOC are always defined, making them equivalent.
To avoid using different symbols, and the possible confusion and
fragmentation that derives from it, all usages of Q_CLANG_QDOC are now
replaced by the equivalent usages of Q_QDOC.
Change-Id: I5810abb9ad1016a4c5bbea99acd03381b8514b3f
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
I wrongly assumed we can't query a value with an empty name ""
during the previous refactor commit, however, in Windows registry,
an empty name for a value means the default value of a key, we can
read and write it through the "Default" name.
Remove the wrong assert to fix the crash when we are trying to query
a default value of a key.
Add a new test case to test this kind of scenarios.
Amends commit 40523b68c1
Fixes: QTBUG-107794
Change-Id: Idacbcb86df4435a8c1ca1c19121599390ae8f3d3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
The libraryMap only stored the file path, so we couldn't load two
versions of the same library as we'd find the other version already
loaded. Change the map to index by file name and version (using a NUL as
separator, since that can't appear in file names).
[ChangeLog][QtCore][QLibrary] Fixed a bug that caused QLibrary to be
unable to load two different versions of a library of a given name at the
same time. Note that this is often inadviseable and loading the second
library may cause a crash.
Pick-to: 6.4
Change-Id: I12a088d1ae424825abd3fffd171ce3bb0590978d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Regression introduced by commit 8d4eb292b2
in 6.0, when QTaggedPointer was introduced. We set the tag even when the
loading failed and failed to reset it because d = {} retains the tag.
Pick-to: 6.2 6.4
Fixes: QTBUG-103387
Change-Id: Ie4bb662dcb274440ab8bfffd170a07aa9c9ecfca
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
QLibrary intentionally does not unload on destruction, so failing tests
may leave libraries already loaded and cause further tests to fail
because of that. So add a cleanup() method to unload everything we may
have loaded.
Note that QLibrary::unload() sets its state to NotLoaded after one
successful call, so we must recreate the object in case it had been
load()ed multiple times.
Pick-to: 6.2 6.4
Change-Id: I12a088d1ae424825abd3fffd171d133c678f910a
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
The "qhash" test relied on the fact that those four elements would
produce a different order with a zero and a non-zero seed. But since
commit b057e32dc4 removed the setting of a
deterministic non-zero seed, this test had a 1 in 4! chance of failing.
Since 4! = 24, 128 retries should be more than enough to ensure we do
find at least hash seed that provokes a different order.
Fixes: QTBUG-107725
Change-Id: I3c79b7e08fa346988dfefffd171ee61b79ca5489
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Various places were knowingly provoking warnings without telling QTest
to check for and suppress those warnings. Some others did check for
this warning, so let's consistently suppress the noise.
Change-Id: I71b9829680c7a513f4d8fbb3c57442875a6c2dc4
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
For some reason the QTest::ignoreMessage() was conditioned on the type
being tested being Array; however, the warning is in fact produced for
all types. So anticipate it for all and make the test log less noisy.
Change-Id: I78681624252ff8a71f080204f8b031609ddac468
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There were two copies of the 0x1D157 row and we can't remember why.
So change one of them to the Chakma digit 3 (a spiral) and annote all
three test-cses with what meaning Unicode assigns to them.
Change-Id: I95837588bd5944f7f2c39c8438d9076e844e4dd0
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
The row 27 that was positioned before row 01, as if it were meant to
be numbered row 00, was identical to the row 27 that appeared after
row 26. Since row 26 was the other case dealing with the null
QRectF(), I kept the one after it instead of renumbering row 00 and
deleting row 27.
Change-Id: I3585839184233f1f1629280ac9e5b25110c155c0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use key(i) rather than valueToKey(value) as the Sha3_* alias Kekkak_*
or RealSha3_*. This way, we still test all members of the enum,
without duplicating row keys (albeit the aliases duplicate values).
Change-Id: I6acba5ffdf5b68294031d609a76b37ca8fad9d94
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Both countBits() and datastream() had two copies of an all-zeros test
with 35 zeros. Removed the second, in each case.
Change-Id: I5dec4765236ae870c30828dae0f04b8902a100f0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
/Zc:lambda seems buggy. Although in my experiments it works well
for 99% Qt repos, it seems some tests will trigger the bug and it
also blocks some new commits. So disable it for now, it's not stable
enough.
Now that this check is disabled, the workaround for tst_qstringapisymmetry
is also not needed anymore, so remove the workaround as well.
Partially reverts commit 8cb832090a
Change-Id: Icf0ecbbaa6262522470e5f5dea05705985ab18f1
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
The zlib convenience API we've been using so far has two problems:
- On Windows-64, where sizeof(long) == 4, the use of ulong for sizes
meant that we could not compress data compressable on other 64-bit
platforms (Unix). While zstream also uses ulong, being a stream API,
it allows feeding data in chunks. The total_in and total_out members
are only required for gzip compression and are otherwise just
informational. They're unsigned, so their overflow does not cause
UB. In summary, using zstream + deflate() allows us to compress more
than 4GiB of data even on Windows-64.
- On all platforms, we always allocated the output buffer in such a
way as to accommodate the pathological case of random, incompressible
data, so the output buffer was larger than the input. Using zstream
+ deflate(), we can start with a smaller buffer, then let zlib pick
up where it left off when it ran out of output buffer space, saving
memory in the common case that compression meaningfully reduces the
size. To avoid the first few rounds of reallocations, we continue to
use zlib's compressBound() for input less than 256KiB.
This completely fixes the compression side of QTBUG-106542 and
QTBUG-104972.
Pick-to: 6.4 6.3 6.2
Fixes: QTBUG-104972
Fixes: QTBUG-106542
Change-Id: Ia7e6c38403906b35462480fd611b482f05a5c59c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Add at least a few, so size() isn't completely untested.
Pick-to: 6.4 6.2 5.15
Change-Id: I500d28f7efb30ab578808d8fefb6ea57949edc2e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
A violation of coding style (requiring braces on multi-line bodies
of conditionals) was accompanied by a mis-indented else block.
Fix a long line while I'm about it.
Change-Id: Ibe9cf15eadbe9ef58138d7876e5e2c5a14a92fd4
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
