Commit Graph

35758 Commits

Author SHA1 Message Date
Jan Grulich
470a50375a Avoid multiple connections to same response in FileChooser portal
When not specified, xdg-desktop-portal keeps using same Request object
over and over when returning response, causing multiple connections
to same slot on same DBus object. While this is not problem when using
FileDialog just once, it is a problem for QML FileDialog which is
usually reused. For this purpose x-d-p provides handle_token option
where you can specify token to be used when creating Request objects.

Change-Id: Ie6569700c48e05fcefa4d5c22c921410f87ea7ae
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-04-06 05:07:05 +00:00
Gabriel de Dietrich
b6f7230cda configure: Detect Cocoa instead of Carbon
Change-Id: I9d1ff47481ad450b4b57c82e15186657eb7dcf93
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-04-05 21:04:22 +00:00
Gabriel de Dietrich
8396162027 QTabBar: Repaint when releasing mouse on selected tab
Some styles, most notably QMacStyle, require this to
properly reflect the pressed state.

Change-Id: Ie841d97afbe3cfdfde1254a7069876a1a0af2e52
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2018-04-05 21:04:06 +00:00
Gabriel de Dietrich
cff9142942 QMacStyle: Fix "on" toggle button text color
Change-Id: I344c63debdcf012a16305f1b2124e8ad0785d982
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2018-04-05 21:03:57 +00:00
David Edmundson
63a433f6c8 Make nvidia resets opt-in based on QSurfaceFormat::ResetNotification
We can't be sure every user will check the return value from makeCurrent
and reset appropriately.
Even though after a reset a user will be left with the same garbage as
before, it's safer than a potential infinite loop.

Change-Id: I5b328c654ad2a89c5b8c4399e2eb38150f4f384b
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-04-05 19:57:09 +00:00
Timur Pocheptsov
1c463000ed HTTP/2 - treat HEADERS frames as valid for streams in 'open' state
Previously, I erroneously expected HEADERS frame only on a stream,
which is in half-closed (local) or reserved (remote) state. But
'open' state is also valid (RFC7540, 6.2). For example, we start
uploading some data, we have sent HEADERS frame and now are
sending DATA frames, without END_STREAM flag set yet; this stream
is in 'open' state. If a server wants to reply with some error
status code or redirect - it does not have to wait for our END_STREAM
flag, reading all this data that will be discarded anyway.

Task-number: QTBUG-67469
Change-Id: I53e3a5e9b2ab7f7917ae083ba44e862a227db238
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-04-05 19:56:55 +00:00
Edward Welbourne
3c8181de70 Kludge QLocale test order to fix fall-out from setDefault()
This makes an irreversible global change: tests that do it will mess
with other tests.  So make sure they're all last.  This required
splitting up one test; and revealed another that secretly depended on
being run with C as default locale.

Task-number: QTBUG-67276
Change-Id: Ic24ef48b2c9bd5c37c1f11260b437628019624ca
Reviewed-by: Kari Oikarinen <kari.oikarinen@qt.io>
2018-04-05 19:56:47 +00:00
David Edmundson
f1fc449016 Support graphics reset status for offscreen surfaces in XCB-GLX
I originally didn't to match the ANGLE code, however it's important for
all surfaces to be able to know to reset if their makeContext fails.

This is espcially relevant on some Linux nvidia drivers which has a bug
where while(glGetError()) won't ever clear whilst a reset is in
progress.

Change-Id: Iae3502168cda748c601a9aee1497e40c6d82cd83
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-04-05 14:50:51 +00:00
Mitch Curtis
a14bfea500 Improve QAbstractSpinBox::stepBy() docs
Change-Id: I28e942b6b2952205641c751e4c120cb38ae13fd6
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
2018-04-05 14:50:30 +00:00
Friedemann Kleint
2823cc6d4b Windows QPA: Fix override cursor not working when re-entering the window
Return early from QWindowsWindow::applyCursor() when an override cursor
is set.

Task-number: QTBUG-67467
Change-Id: I0d3ceead8bbbd3c6295c216a944a1ef15b6f8190
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-04-05 09:00:51 +00:00
Friedemann Kleint
f2fd5f390c tst_QCursor::equality(): Silence warnings
Silence numerous warnings:
QCursor: Cannot create bitmap cursor; invalid bitmap(s)

Amends 6445aa4b06.

Change-Id: I7b467cdeeaa7a854c2878cf1ed2a6113d8c96059
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
2018-04-05 09:00:39 +00:00
Harald Brinkmann
c067083057 Fix memory corruption in heightForWidth cache
Overflowing q_firstCachedHfw caused memory to be overwritten
before q_cachedHfws.

Change-Id: Ibbcc72380f426550cc0569a05c54cd1acd878b33
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
2018-04-05 08:58:48 +00:00
Kai Koehne
18a1cfaba3 Doc: Add missing punctuation in qCritical, qFatal documentation
Change-Id: If4175502f81e569f031d97da6cc7f5d46428442a
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
2018-04-05 05:40:16 +00:00
Kai Koehne
50d301cfdd Hide global qtlogging.ini from autotest
Do not let a global qtlogging.ini interfere with an autotest.
This works around an issue on Ubuntu 17.10

Task-number: QTBUG-67385
Change-Id: I0d02835eb7a561b43fe0b98f4383c170c6d51303
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joni Jäntti <joni.jantti@qt.io>
2018-04-05 05:40:07 +00:00
Allan Sandfeld Jensen
4b4870a12c Parse XDG_SESSION_TYPE and use that to determine default platform
Makes Qt application try to launch using wayland in a wayland session,
even if it was a default desktop build.

Change-Id: Ib7d4a79fbe777527d1862bd775627afae10b1e9e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-04-04 22:26:01 +00:00
Jarek Kobus
ab7d48625a Fix read-only text browser sometimes jump to the top of the document
Respect the inputMethodAccepted() attribute of QPlatformInputContext in
the ibus input context plugin. This is what for example the windows
input context plugin does, too.

A text browser that is read-only should not receive input method events
that include a cursor placement. So when it receives the focus, we must
only convey the received-focus information to the input method if the
widget is editable (or accepts input method events generally speaking),
because as soon as the ibus process learns about it, it will send an
input method event that looks like a "let us reset the state a clean
start and place the cursor at the beginning" message. We are not
interested in reaching that state with the ibus process.

Task-number: QTBUG-63066
Change-Id: I1b0e5f8a396bc31169d6081f9325092b447cf60a
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-04-04 08:53:35 +00:00
Eskil Abrahamsen Blomfeldt
c53b86444f macOS: Document availability of freetype font engine
Since we have this documentation for the Windows platform plugin,
it makes sense to also have it for Cocoa.

Task-number: QTBUG-67372
Change-Id: I170ae251572c8e209643a582cdd7350aaf5c7ccd
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-04-04 08:52:36 +00:00
Andy Shaw
33e5b55b7e Check if the movie's current pixmap is null before drawing it
Change-Id: I87ed9998108961775f8f424bfbb4b957c0b03d8a
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
2018-04-04 08:42:52 +00:00
Allan Sandfeld Jensen
559964849a Add lancelot based benchmark
Uses the scripts and tests we already have for lancelot as a painting
benchmark.

Change-Id: Idf8a55e2261162e619f6dbb567dc19f8dc96da4e
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-04-04 08:17:43 +00:00
Kari Oikarinen
3e1ecdd74c tst_QStateMachine: Don't use unconditional waits
Instead use QSignalSpy to wait directly for the expected events.

Change-Id: I319302ea7177fe690b5d885347c505454904518e
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
2018-04-04 07:07:40 +00:00
Leena Miettinen
051228c9ba Doc: Increment copyright year in global doc templates
Change-Id: I687ea95c0985c361ffb75ea3c162615b0abbb7f7
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-04-04 06:56:00 +00:00
Kari Oikarinen
d31a68146d Narrow tst_QDnsLookup::lookup blacklist to only CI
It is suspected that the fault actually lies in CI infra.

Amends e3cf2a1ae9.

Task-number: QTBUG-66311
Change-Id: I967da283f0b94be1d0b99481d0cbd15ca7f98d45
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-04-04 05:05:51 +00:00
Gabriel de Dietrich
6d644c7a77 QWidget: Fix typo in Mac size propagation
This amends commit f8b6d104b9.

Change-Id: I77a48e68ec7db791b843fe4dfeddc4c6fedf6380
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
2018-04-04 02:41:33 +00:00
Kari Oikarinen
c7dac6469c tst_QThread: Use QTRY_VERIFY instead of qWaits
These two places were sort of manually implementing QTRY_VERIFY except that they
never time out.

Change-Id: I136e6c7400194327c0475c6acfc019825ccec1b5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
2018-04-03 10:20:36 +00:00
Kari Oikarinen
231ac1b878 tst_QFutureWatcher: Avoid unconditional qWait()s
Use QSignalSpy::wait or QTRY_VERIFY instead. This shaved off ~200 ms of the
running time of the test and is more reliable.

Some unconditional qWait()s still remain in this test. They are giving an
opportunity for the wrong thing to happen and thus are not waiting for any
specific condition to be fulfilled.

Task-number: QTBUG-63992
Change-Id: I25a4470fe8d6a5b8b5039b3ed77321d24faa1707
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-04-03 10:20:27 +00:00
Kari Oikarinen
8b9a9651d6 Fix typoed integrity condition
Amends 594fe5c463.

Change-Id: I0fb5ab79d895cfd9698db9b4a4394481299a7e1a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-04-03 10:20:18 +00:00
Morten Johan Sørvig
306df144b4 Cocoa: Make QMacNativeWidget paint correctly
QWindows with transparent pixels (of which QMacNativeWidget
is an example) must be composited, even if they are
content views.

This will display the NSWindow background instead
of solid black for the areas where the Qt backingstore
has transparent pixels.

Change-Id: Ibee1327e11bc64975900b4c5d632dd5f103da4c8
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-04-03 06:03:40 +00:00
Gabriel de Dietrich
dbdd5f0ffb QCoreTextFontEngine: Fix build with Xcode 9.3
Apple LLVM version 9.1.0 (clang-902.0.39.1)

Error message:

.../qfontengine_coretext.mm:827:20: error: qualified reference to
      'QFixed' is a constructor name rather than a type in this context
    return QFixed::QFixed(int(CTFontGetUnitsPerEm(ctfont)));

Change-Id: Iebe26b3b087a16b10664208fc8851cbddb47f043
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2018-03-30 19:17:46 +00:00
Simon Hausmann
84c71207ae Fix debug_and_release builds with CONFIG += qtquickcompiler
For correct debug/ and release/ suffix substitution and thus avoid
concurrent access to generated files, we have to declare the output
directory variable used by qtquickcompiler.prf in qtdeclarative here and
enable it for substitution.

Change-Id: Id8483daffdf1b9990396c55f7bc0d08a2f65cafd
Task-number: QTBUG-66675
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-03-29 23:24:24 +00:00
Friedemann Kleint
f3a461c4a2 Stabilize tst_QGraphicsProxyWidget::tooltip_basic()
Use QTRY_VERIFY instead of hard-coded wait for the tooltip to appear.
Also use QTRY_VERIFY to verify that no top level widgets are left over
to account for tooltips and effect windows.

Change-Id: Ia9835fdc480c6abb034f6fc4ad3d6b32751ee536
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Reviewed-by: Kari Oikarinen <kari.oikarinen@qt.io>
2018-03-29 20:50:00 +00:00
Samuel Gaist
62da8e3480 doc: Improve QByteArray::fromRawData snippet
The current snippet uses integer literals that will trigger the
Wnarrowing warning with recent version of gcc. This patch replaces them
with character literals to fix this warning.

Change-Id: Iffad495f24cc9d4c1674a7fe3f6b45c46a625ff8
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
2018-03-29 19:12:07 +00:00
Samuel Gaist
1c4cae6277 Improve the Frozen Column example
This patch updates the frozen column example to use QTextStream which
offers a more convenient way to read text files and also takes care of
converting the 8-bit data stored on disk into a 16-bit Unicode QString.

Change-Id: Ifd03903ac14b48b026d8770cda726f8ed2756ab4
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
2018-03-29 19:12:03 +00:00
Oswald Buddenhagen
1d537071de rcc: prune dead wildcard matching code
clearly, rcc was meant to support wildcard patterns in <file> entries.
however, since its inception, this code was broken: the exists() check
was done first, so the decomposition into path and wildcard would never
happen.
as actually supporting wildcards woulds just complicate matters, simply
remove that dead code.

on the way, re-arrange the code in a way that is advantageous for
subsequent changes, and insert a case that catches non-regular file
nodes (this would have previously run into the wildcard code).

Change-Id: Iac1a168b844ef5b176f6cc45d6a779fde0bec6f7
Reviewed-by: hjk <hjk@qt.io>
2018-03-29 18:16:50 +00:00
Oswald Buddenhagen
04b93bfb21 qmake: minor fixups to ioutils for building in qt creator context
Change-Id: If82a5387a03f400cde04d582dd7e8567a2b661a0
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:35 +00:00
Oswald Buddenhagen
0158b18509 qmake: updates to the parsing code of external properties
sync-up with qt-creator; no effect on qmake.

Change-Id: I7555de5c72a9250b31e20fc60e39680d19882fcb
(cherry picked from qtcreator/2cb7c81e620d224d386860a637dc889acb15435e)
(cherry picked from qtcreator/89868ee2b9093ecf40602ae302b991d6a60014b0)
(cherry picked from qtcreator/03e699ce2985eedcd33d247aa47d04b14bc4bc04)
(cherry picked from qtcreator/61419e7bf0f3bff6dcf63876b05b72c56e60c2a8)
(cherry picked from qtcreator/19eaf87ef95a510351557119a955223a4aeea7b3)
(cherry picked from qtcreator/3080bda0661989e88dfa62101b4c3f5d5e6754a1)
(cherry picked from qtcreator/99714239b616e628ff4e0afe3db7eb7511ccf569)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:29 +00:00
Oswald Buddenhagen
13ab4c563d qmake: remove unnecessary QMakeGlobals::setProperties() overload
sync-up with qt-creator; no effect on qmake.

Change-Id: I926bc97fe6fa510ac5a8fe77b64014333a69bd04
(cherry picked from qtcreator/8a69c254757eab7852443b5e4bd5eafb68908d3d)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:24 +00:00
Alessandro Portale
85ae0f1f3e qmake: add text codec support to VFS
sync-up with qt-creator; no effect on qmake.

Change-Id: I34b42bd19e0de973deb2291e91f306d1ca7c630e
(cherry picked from qtcreator/15148d8e4454ff3277131ea52a4204c5fa0b7ab0)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:16 +00:00
Oswald Buddenhagen
e5d909d6d6 qmake: make VFS aware of exact vs. cumulative evaluation
sync-up with qt-creator; no effect on qmake.

comment on cherry-pick: this is actually a lot more than a cherry-pick,
because the dual VFS needs to deal with the file ids which were
concurrently introduced on the qmake side.

Change-Id: I2c1eb16c97526fa275a1c6a2eae9266d385859ac
(cherry picked from qtcreator/424639ecac9d2e404d2bfaff7f46b45ed98664b8)
(cherry picked from qtcreator/a8010b0fff47d903d4a1f80e3adb1a2ef41beb33)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:10 +00:00
Oswald Buddenhagen
811118f68d qmake: make IoUtils::fileType() return more expressive result
it now does not see anything except regular files and directories any
more. that's not expected to be a problem, given the function's scope.

Change-Id: I53063ad8cacb3afe5cc1baf6d6d5feba3465e74f
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
(cherry picked from qtcreator/cf82f210804151452fce3cddb3cb2793dab976eb)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:15:04 +00:00
Oswald Buddenhagen
e2de837198 qmake: let QMakeVfs::readFile() report ENOFILE explicitly
when the QFile object is already constructed, querying whether the file
exists is actually cheap, so do it right away instead of later on
demand. that makes the calling code a bit cleaner.

fwiw, that we need to explicitly query the file's existence at all is a
result of QFile's completely useless error "codes" (which merely say
which function failed, as if the caller would not know).

Change-Id: Ifec39d05b1713d8128046f679287e510f10e45dc
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
(cherry picked from qtcreator/5ba32e3484ead2e35cc7732dcd59a97e7459dbfd)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:14:58 +00:00
Oswald Buddenhagen
fe5f2a235c qmake: make message about not found mkspec less confusing
Change-Id: I9cfa2c9476d3d7fdb68b0a23e175eea4b3b11ad9
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
(cherry picked from qtcreator/c0ddf0a34407f9d3ad9f575176550ba33d536d12)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:14:50 +00:00
Oswald Buddenhagen
38f6b6242e qmake: prevent .prf files from postponing work to build passes
just a sync-up from lupdate; no effect on qmake itself.

alternative source: qt-creator/7e86b98836342035684cc1c1aa49292224faed07.

Change-Id: I5e10b44637d527799f55c578a99076eb4750f131
(cherry picked from qttools/8e7e60dbdea04c943bc6d50290db12d3fefd39f2)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-29 18:14:38 +00:00
Thiago Macieira
72f8f994b2 QSemaphore: attempt to fix again the 64-bit Linux semaphore
This time, the issue was that we could race a wait and a wake. A multi-
token waiter would not notice that the number of tokens changed because
it only performed a fetch-and-OR, then waited on the high part which did
not change. That means the futex_wait() would succeed, when we wanted it
to have failed.

So we have to bring back a portion of what commit
081c001deb removed: we need to keep both
the token count and the waiter count in the high word.

Task-number: QTBUG-67214
Change-Id: I04a43ee94975482f9e32fffd151e467a9e0030b3
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-03-29 15:15:03 +00:00
Mauro Persano
2e496e9322 Windows: handle multiple transient children when closing windows
On Windows, we must update the transient children of a window that's
about to be destroyed or its transient children will be destroyed as
well. This is already being done in the case of a single transient
child, but there are still problems when there are more than one.

Change-Id: Ib0de6767bf43dca508ecdb87cbdfedb59e9146e8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-03-29 15:07:45 +00:00
Jürgen Hunold
ee6164942d Allow compilation with clang-cl disguised as cl
Task-number: QTBUG-63512
Change-Id: I7e0c4e144262a175c39508090c935c73186fac65
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-03-28 18:18:05 +00:00
Kari Oikarinen
e3cf2a1ae9 Blacklist tst_QDnsLookup::lookup
Task-number: QTBUG-66311
Change-Id: I8b7536bc11763b8405ecbe5c86be94c2af036c6e
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
2018-03-28 14:05:43 +00:00
Kari Oikarinen
ab4f3704d8 Blacklist tst_Gestures::customGesture on openSUSE and Ubuntu
Has been flaky on those platforms in CI.

Task-number: QTBUG-67254
Task-number: QTBUG-66216
Change-Id: Ia1a718a23b1992fcc0e85bf49b714bc43acc4ce2
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
2018-03-28 11:41:07 +00:00
Kari Oikarinen
be674bcdc5 tst_QLocalSocket: Only expect debug messages if debug level is enabled
Otherwise the ::debug() test fails when a build does not print qDebug()
messages.

Change-Id: I3f3c4b3c7d74004abe5ed8d7ac52164d4f88ef1f
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-03-28 11:40:44 +00:00
Kari Oikarinen
f22ae9c0d0 QFutureWatcher: Refer to convenience method resultAt in documentation
The future does not actually have a result() member function that takes an int.
The correct function is resultAt(). But that is also available directly in the
QFutureWatcher, so refer to that instead of advising to get to the future.

Change-Id: I53d267b4b48b1171bf611e11130b9dacabc059a4
Reviewed-by: Martin Smith <martin.smith@qt.io>
2018-03-28 11:40:30 +00:00
Olivier Goffart
c59cb98095 Fix MSVC2017 compilation with enabled relaxed constexpr on 32-bit target
The problem is that qCountLeadingZeroBits is calling qPopulationCount
which is only conditionally constexpr, so qCountLeadingZeroBits can only
be marked constexpr if qPopulationCount is also.

On MSVC2017 64bit this is not a problem because it uses builtins function
in this case. (which is not constexpr, but it works because the compiler
is not forced to diagnose the problem because of the "?:" operator.

The error being fixed is:

  qalgorithms.h(847): error C3615: constexpr function 'qCountLeadingZeroBits' cannot result in a constant expression
  qalgorithms.h(858): note: failure was caused by call of undefined function or one not declared 'constexpr'
  qalgorithms.h(858): note: see usage of 'qPopulationCount'

Task-number: QTBUG-67259
Change-Id: I65a3dfae12ca49394bec14ffefdd41a07fee1c32
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-03-28 08:16:57 +00:00