The returned data is in US-ASCII (or else Latin-1), and resides in
consecutive memory. We can therefore return it in a QLatin1String,
which, however, will in general not be NUL-terminated.
Many users use the return value as part of a QStringBuilder
expression, and those which are not are not pessimized further by
this change.
The caller in qtimezoneprivate_icu looks as if it could simply zero
-terminate the return value and use it as-is, as opposed to
converting to UTF-8, but I left the code equivalent to the original
just the same.
Change-Id: I0e628af8c1320fcff8d0aacf160e859681d2b85a
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Ensures that numbers representable as 64-bit integer
are not printed using exponent notation.
Some JSON implementations such as the one of the Go
standard library expect this in the default
conversion to int.
Change-Id: Ic3ac718b7fd36462b4fcabbfb100a528a87798c8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QStringView is a simple container for (const QChar*, int) and (const
char16_t*, size_t). It acts as a replacement interface type for const
QString and const QStringRef, and enables passing all kinds of
string-like types to functions otherwise expecting const QString& -
without the need to convert to QString first.
The use of this new class is guarded by a macro that enables three
levels of QStringView support:
1. offer QStringView, overload some functions taking QString with
QStringView
2. like 1, but remove all overloads of functions taking QStringRef,
leaving only the function taking QStringView. Do this only where
QStringRef overloads tradionally existed.
3. like 2, but replace functions taking QString, too.
This is done in order to measure the impact of QStringView on code
size and execution speed, and to help guide the decision of which
level to choose for Qt 6.
This first patch adds QStringView with most of its planned
constructors, but not much more than iterators and isNull()/isEmpty().
Further patches will add support for QStringView to QStringBuilder,
add QStringView overloads of functions taking QString, and add the
complete API of const QString to QStringView.
[ChangeLog][QtCore][QStringView] New class, superseding const QString
and QStringRef as function parameters, accepting a wide variety of
UTF-16 string data sources, e.g. u"string", std::u16string{,_view},
and, on Windows, L"string", std::wstring{,_view} without converting to
QString first.
Change-Id: Iac273e46b2c61ec2c31b3dacebb29500599d6898
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
We can quickly check if the change affects sorting by checking whether
lessThan(N-1, N) and lessThan(N, N+1) are still true. If this is the case
for all changed rows, then we can skip the whole remove+insert+layoutChanged().
Task-number: QTBUG-1548
Change-Id: Ia778b3e8880cc9909eef1f8a016c84235870353d
Reviewed-by: Stephen Kelly <steveire@gmail.com>
If the respective modules aren't available we cannot build the tests
and examples. We drop the qtConfig(opengl) requirement for the opengl
examples as
a, we would need to make the QtGui configuration available for that to
work, and
b, we should not add too much detail to the tests and examples build
configurations. Checking each test and example for every feature it
uses would be too much.
Task-number: QTBUG-57255
Change-Id: Ifb043c81ec9e5c487765297bd65704812cd281fc
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
CustomTextWidgetIface marked its text() method as an override;
DropOnOddRows marked its canDropMimeData() as an override; each
neglected some other methods that are overrides. Convert
Q_DECL_OVERRIDE to the keyword in affected classes, to match.
Change-Id: I78b38e20a81e3e6aab282a1cb3d70cdf8a5f4135
Reviewed-by: Alexander Volkov <a.volkov@rusbitech.ru>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
mkdir(data2) depended on mkdir(data1) being run before, or it would
fail. In addition, the rmdir() test required the equivalent mkdir() test
being run before. So drop these annoying dependencies and make the tests
cleaner by having clear separation of the test data and merging the two
tests into one
The entryList() test still depends on the testdir being clean: it will
fail if mkdirRmdir() previously failed.
Change-Id: Iaddbecfbba5441c8b2e4fffd14a3e35972d2a3d8
Reviewed-by: David Faure <david.faure@kdab.com>
We don't load and save pointers usually because the pointer value cannot
be guaranteed to remain across program invocations. However, nullptr is
an exception: a null pointer is always a null pointer.
We don't actually have to read or write anything: there's only one value
possible for a std::nullptr_t and it is nullptr.
[ChangeLog][Important Behavior Changes] A QVariant containing a
std::nullptr_t is now streamable to/from QDataStream.
Task-number: QTBUG-59391
Change-Id: Iae839f6a131a4f0784bffffd14aa374f6475d283
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Task-number: QTBUG-59218
Change-Id: Ic839a36af1ecab39da0c3394c34181b6717e24e2
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
QUrl::isRelative(str) would be false for such files, so first check for
file existence before doing any URL parsing.
Change-Id: I51b6229251ad94877ac408b2f8018456d3e10a36
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
... to avoid the expensive conversion from QString to QL1S.
[ChangeLog][QtCore][QStringList] Added contains(QLatin1String) overload.
Change-Id: Ie75839ce9e46e03fe5155a02c7dcf00277b95c8d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commit e0ea0f6178 optimized QChar <->
QString(Ref) comparisons by adding more overloads to avoid creating
QStrings from QChars just to compare them.
But these new overloads made existing comparisons to QChar ambiguous.
This was known at the time for QChar/int comparisons.
It has since turned out that also comparing to '\0' is ambiguous,
ie. not comparing to int or char per se is ambiguous, but comparing to
nullptr constants is, because QString(const char*) is just as good a
candidate as QChar(char)/QChar(int).
Since we allow QString/QChar comparisons, it seems logical to solve
the problem by adding QChar<->nullptr overloads.
[ChangeLog][QtCore][QChar] Disambiguated comparisons with nullptr
constants such as '\0', which 5.8.0 broke. As a consequence,
QChar<->int comparisons are no longer deprecated, as this was a failed
attempt at fixing the ambiguity.
Change-Id: I680dd509c2286e96894e13078899dbe3b2dd83bc
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
It has started failing recently on the CI, too.
Task-number: QTBUG-58745
Change-Id: I4c8834917e6455d00c300549ed448b06da75d5bc
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
in the vain hope to get the CI unstuck again.
Change-Id: I1b01bb1d59a8850f68d1d80838f5606f4159bcbd
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Fixes the bug in QFile which allowed opening a file with reserved
characters in its name. If the name is a long file path, CreateFile
opens a file with a truncated name instead of failing, so we have
to catch reserved characters ourselves.
[ChangeLog][Windows] Fixed a bug that caused QFile to create
files with truncated names if the file name was invalid. Now,
QFile::open correctly fails to create such files.
Task-number: QTBUG-57023
Change-Id: I01d5a7132054cecdfa839d0b8de06460039248a3
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
... for better std C++ integration.
[ChangeLog][QtCore][QChar] Added constructors from char16_t and, on
Windows, wchar_t.
Change-Id: I2d18ea3a37e869b8ea9f4036d7200d9d13c7d929
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
You can now use the recursiveFiltering property to recurse into
children to find potential matching children to filter in.
Change-Id: I411a2fb29489fd56b9c881b3e6b8d1860cce630c
Reviewed-by: Stephen Kelly <steveire@gmail.com>
By adding std::move where it makes sense.
This is not only good for move-only types, but for any type which
can be moved as it saves copies of the return value in any case.
[ChangeLog][moc] Move-only types are now supported as return types
of signals and slots.
Change-Id: Idc9453af993e7574a6bddd4a87210eddd3da48a9
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
It's a Qt 3 compatibility vehicle, and as such inherits the now-alien
property to distinguish empty and null strings. Particularly worrisome
is the following asymmetry:
QString("") == QString::null // false
QString("") == QString(QString::null) // true
Instead of fixing this behavior, recognize that people might use it as
a weird way to call isNull(), albeit one that once was idiomatic, and
simply deprecate everything that deals with QString::null.
[ChangeLog][QtCore][QString] QString::null is now deprecated. When
used to construct a QString, use QString() instead. When used to
compare to a QString, replace with QString::isNull().
Change-Id: I9f7e84a92522c75666da15f49324c500ae93af42
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Stale Lock files in the future can happen in some situations. For exemple
two computers with different clocks access the same file system. It could
be that one of the timestamp is totaly off (several years into the future).
[ChangeLog][QtCore][QLockFile] Fixed a deadlock occurring if a corrupted
lock file's modification time is in the future.
Change-Id: I8dac98a0e898c76bcef67f8c195e126c996b6add
Reviewed-by: David Faure <david.faure@kdab.com>
Commit fb376e0fcc removed an array that
facilitated returning the names of built-in types, to avoid the jump tables
from the switch statement. This commit brings it back but makes the array a
compile-time constant string offset table.
The array is created by way of a set of C++11 constexpr functions, so we
require that compiler feature. I've tested that MSVC 2015 does support
it as well as the ICC 17 when masquerading as MSVC 2015, so I've enabled
for that too. The only compiler left out is MSVC 2013.
If we didn't need to support MSVC 2015, this could have been written
more simply with C++14 relaxed constexpr.
This also adds unit tests to confirm that QMetaType::typeName() does
return null when we said it would. We're testing QMetaType::User-1
(which we'll likely never use) and QMetaType::LastWidgetsType-1 to
select something inside the range of the built-in types.
Task-number: QTBUG-58851
Change-Id: I4139d5f93dcb4b429ae9fffd14a33982891e2ac1
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Let's take the beginning of the description: WaitForSingleObjectEx can
be up to 16 milliseconds early. This is proven by the fact that there
are tests doing:
wait(waitTime);
QVERIFY(timer.elapsed() >= waitTime - systemTimersResolution);
and failing.
Task-number: QTBUG-59337
Change-Id: Iae839f6a131a4f0784bffffd14a9a79523d69d94
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
ResultStore never actually exists, only ResutStoreBase does. So casting to
ResultStore<T> and calling its member functions is UB. Put the type dependent
function as template member functions within ResultStoreBase and so we don't
need QtPrivate::ResultStore anymore.
Same goes for the iterator.
Change-Id: I739b9d234ba2238977863df77fde3a4471a9abd2
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
For the windows file system engine, we add an extra macro to use
library loading if configured to do so, but avoid it on WinRT, as
none of the symbols would be found.
We also QT_REQUIRE_CONFIG(library) in the library headers and
exclude the sources from the build if library loading is disabled.
This, in turn, makes it necessary to clean up some header inclusions.
Change-Id: I2b152cb5b47a2658996b6f4702b038536a5704ec
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Parameters passed by value, like local function variables, are subject
to NRVO/return-by-move already, so adding std::move, even disguised as
qMove(), makes Clang warn about a pessimizing move.
Change-Id: I7d59bfee4cf7ecddee0874ee489367044c702643
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
QLocale::matchingLocales() simply created each locale using the basic
data, without (unless the matching conditions stipulated Language C)
applying number-options hacks that it applies everywhere else, when
creating the C locale. Thus the C locale in its returned list (if it
wasn't the only entry) ended up with the default number options,
without omiting separators in numbers. Thus QLocale::c() didn't
actually appear as an entry in the list. Discovered while
investigating QTBUG-58947.
Added a dumb autotest that checks various ways of getting the C locale
do actually give us equal locale objects. Fixed matchingLocales() to
apply the same hack as is used elsewhere for the C locale.
Change-Id: I263f31da623052b63171f5b5a83c65802383df21
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commit eab7efd1 increased the timeout for this test, but apparently 10
seconds are still not enough. Set the timeout to a minute.
Task-number: QTBUG-59075
Change-Id: Iebab8e5c73c4858ca90063a82aedfbb2546a62cc
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
C0 to DF take one continuation byte; E0 to EF take two.
It's invalid UTF-8 anyway, but at least this is what the test row meant:
overlong sequence with 3 bytes of what should have been two.
This updates the comment to match the character that we were actually
testing.
Change-Id: I85a8bd6da2c44f52b4e3fffd14a75df2600487aa
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Replace all QT_NO_PROCESS with QT_CONFIG(process), define it in
qconfig-bootstrapped.h, add QT_REQUIRE_CONFIG(process) to the qprocess
headers, exclude the sources from compilation when switched off, guard
header inclusions in places where compilation without QProcess seems
supported, drop some unused includes, and fix some tests that were
apparently designed to work with QT_NO_PROCESS but failed to.
Change-Id: Ieceea2504dea6fdf43b81c7c6b65c547b01b9714
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Liang Qi
Marc Mutz
Marius Kittler
David Faure
Edward Welbourne
Ulf Hermann
Thiago Macieira
Tony Sarajärvi
Anton Kudryavtsev
Jesus Fernandez
Filipe Azevedo
Olivier Goffart
Joerg Bornemann