Commit Graph

6985 Commits (dd52fd0024600d3beffc82d6da02b4239a62d725)

Author SHA1 Message Date
Dmitry Shachnev 186a5af82b Doc: do not break the values list by blank lines in qnamespace.qdoc
There should be no blank lines in \value content, otherwise qdoc
ends the list and starts a new one.

Change-Id: Idddc7992317894487445aea36397136df40b9691
Reviewed-by: Martin Smith <martin.smith@qt.io>
2017-01-23 11:47:57 +00:00
Tasuku Suzuki 92eafefb5a Fix build without features.textcodec
Change-Id: Ia9636db509270db93c2f9e46adaf1def0f157344
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-01-23 09:23:42 +00:00
Tasuku Suzuki ca7f67e82b Fix build without feature.animation
Change-Id: Ia1b9ae3a35cbc73d0bbf27db234d0cd120d0b601
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-01-16 14:12:50 +00:00
Liang Qi 7600cb6901 Merge "Merge remote-tracking branch 'origin/5.8.0' into 5.8" into refs/staging/5.8 2017-01-15 16:48:35 +00:00
Kavindra Palaraja dbb4504f12 Add Q_CC_CLANG to the documentation page
Task-number: QTBUG-42247
Change-Id: I3f707df4d25cac12fabac863b4f6bb50bfac5e26
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
2017-01-15 11:33:20 +00:00
Marc Mutz 0deca277d2 QtCore: fix GCC 7 warnings
GCC 7 warns about implicit fall-throughs now.

Fix by adding Q_FALLTHROUGH.

Change-Id: I482ab4c6adc469b11e1fd163516ff486b3b55ef7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-15 08:09:24 +00:00
Liang Qi 00935bf8c2 Merge remote-tracking branch 'origin/5.8.0' into 5.8
Conflicts:
	src/gui/painting/qcoregraphics.mm

Change-Id: I4d49535cd75f2cdf0151c1dbff312cce5e159760
2017-01-14 22:02:55 +01:00
Thiago Macieira 5a1b4832a2 Adapt to the C++ SIC introduced by P0021: noexcept overloading
C++17 adopts P0021R1[1], which makes noexcept be part of the function
pointer's type and thus be overloadable. It contains some provisions for
allowing a noexcept function pointer to cast implicitly to a non-
noexcept function pointer, but that fails in the presence of templates
and additional overloads that could match the type in question.

Fortunately, the paper proposed a test macro, so we can change our
sources now and be compatible with both C++14 and C++17 rules.

This first failed with Clang 4.0 trunk. This source incompatibility is
not our fault, it's the language's doing.

[1] http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html

Task-number: QTBUG-58054
Change-Id: I2bc52f3c7a574209b213fffd14988cf0b875be63
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2017-01-14 03:24:30 +00:00
Paul Olav Tvete 635d0ae007 Fix typo in QT_REQUIRE_CONFIG error message
Change-Id: Iecfd398935f9c10aa456bd3452d34b31bc7eb4c9
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2017-01-13 08:25:50 +00:00
Giuseppe D'Angelo d9cb064425 Doc: fix the datatype returned by Qt::TextAlignmentRole
It's supposed to be a full alignment (like Top | Right), not
just one flag.

Change-Id: I656adda83742d7e4f31955322e937e979b32747c
Reviewed-by: David Faure <david.faure@kdab.com>
2017-01-12 16:14:40 +00:00
Jason Erb ae42bf0f9b Fixed Chinese language selection on iOS
For language "Traditional Chinese" on iOS with region "US",
the logic was formerly to attempt a match on country/language/script (fail),
followed by country/language (which would result in script defaulting to
"Simplified"). Now, the logic is to try language/script first if script is
specified. Failing that, language/country will be attempted.

Task-number: QTBUG-39639
Change-Id: I75a774b1e66686e95167ff221458a97a7ea2660d
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jason Erb <jason.erb@sparist.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-10 17:35:35 +00:00
Rafael Roquetto 858c1afb7a QNX: Fix comments on qcompilerdetection.h
Change-Id: I75495b4ba3d8742419f824aa0e0b52694dbd42ed
Reviewed-by: James McDonnell <jmcdonnell@blackberry.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-10 17:33:57 +00:00
Ulf Hermann eaa0063b70 Fix compilation with QT_NO_SHAREDMEMORY
If we use QLatin1String we should include qstring.h.

Change-Id: Iebd761b98e515e9cd9cd34b96a0f8a602d00f086
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-10 16:35:06 +00:00
Kavindra Palaraja 41d1785e13 Clarify that QString::toDouble does not have a fallback
QString::toDouble always uses the 'C' locale.

Task-number: QTBUG-44045
Change-Id: Ifb0c2f11c83c209907dd35bb39d1450022c8e85c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-10 06:38:03 +00:00
James McDonnell b0a9b9ab87 Adjust QNX choices
Don't use Dinkum choices when the C++ library is libC++ (QNX 7.0).

Change-Id: I18c3f716ccfb0c02dbfdc01eac4b707d3ae9aab6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-10 01:42:53 +00:00
Kavindra Palaraja 389165dd25 Clarify StripTrailingSlash behavior
StripTrailingSlash removes trailing slashes from the path, but not the
entire URL.

Task-number: QTBUG-47607
Change-Id: Id62b971e563e290b7ca000576bcc328616a3f1a2
Reviewed-by: David Faure <david.faure@kdab.com>
2017-01-08 16:02:44 +00:00
Oswald Buddenhagen 52d64fca66 revert to building qmake with qconfig.cpp
turns out that just appending builtin-qt.conf isn't a good idea:
executable-editing tools (objcopy, prelink, etc.) will happily drop the
"attachment".

a safe method would be adding a proper section to the executable, but
there doesn't appear to be an objcopy equivalent in msvc, and using
entirely different methods of embedding the file with different
toolchains seems like a rather bad idea.

so instead go back to the old method of building qmake with a generated
qconfig.cpp. of course, as said file is now created by qmake itself, we
have to compile qlibraryinfo.cpp a second time, and link a second qmake
executable.

Task-number: QTBUG-57803
Change-Id: I9e232693550aa870cec154e49cc06add13017cc2
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-01-06 20:09:08 +00:00
Ulf Hermann 2ed9a52ebf Fix compilation without sharedmemory
We have to enable qt_safe_ftok with either sharedmemory or
systemsemaphore. In order to make the resulting QT_CONFIG work with the
bootstrap library we switch the features off for bootstrapping. Some
tests and examples have to be excluded when sharedmemory is not
available.

Change-Id: I3fc3926d160202b378be2293fba40201a4bf50c5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-05 08:38:33 +00:00
Ulf Hermann 9ba39c4b05 Remove pointless QT_NO_THREAD ifdefs from qpropertyanimation.cpp
Change-Id: I7b7e80abbddf4d43c6135775136d993196d708b3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-04 17:39:55 +00:00
Ulf Hermann 99245e9576 Avoid zero-as-nullpointer warnings in QThread
Change-Id: I3fd557a54d63c2dcabe58fab65326538896d02a2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2017-01-04 16:17:44 +00:00
Aleksey Lysenko 1b82a9aea5 Doc: add note about unsupported platforms for QProcess
Task-number: QTBUG-57840
Change-Id: I46a26a9c4c6ad0aa6994945091a2904c3b51080f
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
2017-01-04 07:20:06 +00:00
Ulf Hermann c96a4058f1 Avoid compile warnings in qabstractanimation.cpp
Change-Id: I57f90fc335b50231fb2093f096ad38168d476145
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2017-01-03 16:29:07 +00:00
Frederik Schwarzer 1c3c2486c6 Fix broken link in documentation
Task-number: QTBUG-57530
Change-Id: Iecb1a26f6b8a7e8a506d768668cde1c277d15dde
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Reviewed-by: Martin Smith <martin.smith@qt.io>
2017-01-03 15:08:20 +00:00
Thiago Macieira 39e80062d0 Work around MSVC ABI stupidity in exporting inline members of base class
In this case, the issue was ICC, when compiling QtQml:

qv4sequenceobject.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl QList<class QItemSelectionRange>::replace(int,class QItemSelectionRange const &)" (__imp_?replace@?$QList@VQItemSelectionRange@@@@QEAAXHAEBVQItemSelectionRange@@@Z)
  referenced in function "public: static bool __cdecl QV4::QQmlSequence<class QItemSelection>::deleteIndexedProperty(struct QV4::Managed *,unsigned int)" (?deleteIndexedProperty@?$QQmlSequence@VQItemSelection@@@QV4@@SA_NPEAUManaged@2@I@Z)

This applies the same fix as qvector.h has had for ages due to QPolygon.

Change-Id: I15b62e0f9cec482fbb40fffd1490d791db5056bc
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-01-03 15:01:32 +00:00
David Faure a8ae8e3130 QDateTime::fromString(): improve performance by 33%
getMaximum() and getMinimum(), called during parsing, create new
QDateTime instances, which on Linux end up calling mktime().
Making these static (for the common case of LocalTime spec)
improves performance dramatically, when parsing several date/times.

tests/benchmarks/corelib/tools/qdatetime/ (after fixing it to
actually parse a valid date/time) says:
 RESULT : tst_QDateTime::fromString():
-     36,742,060 instruction reads per iteration (total: 36,742,060, iterations: 1)
+     24,230,060 instruction reads per iteration (total: 24,230,060, iterations: 1)

Change-Id: I0c3931285475bf19a5be8cba1486ed07cbf5e134
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-03 13:37:49 +00:00
Thiago Macieira 69ce68cb89 Doc: add a quick note about unfixed Windows encoding bug
Task-number: QTBUG-49640
Change-Id: Icb0289e3118a41dd9438fffd1492925b03de62d6
Reviewed-by: David Faure <david.faure@kdab.com>
2016-12-28 14:56:01 +00:00
Kavindra Palaraja a89c392097 Link QVariant class documentation to the Creating Custom Qt Types article
The article does answer the questions asked in the bug.

Task-number: QTBUG-56629
Change-Id: Ib8bac0acf45bc10598fc47feb6dd73005b5ad040
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-28 13:31:45 +00:00
Kavindra Palaraja 2be9880ebb Removed random notes in the documentation that should not be there
Two sentences that read like author notes likely added by accident.

Task-number: QTBUG-56630
Change-Id: I7a0b114e128f95e54e9e8f26b43493f67747d650
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2016-12-28 12:00:44 +00:00
David Faure 6722147696 QMimeDatabase: fix handling of conflicting globs
This code always intended to follow the recommended checking order from
the spec, which says "if multiple globs match, use file contents".
But if the globs had different weights, it would discard globs with
lower weights, and then wrongly conclude, if there is only one glob
left, that there was no ambiguity.

The correct way is rather: remember that multiple globs matched,
do determination from contents, and if that didn't work, *then* use
(one of) the highest-weight glob(s).

This fixes PGP-encrypted *.asc files being detected as text/plain rather
than application/pgp-encrypted.
(https://bugs.kde.org/show_bug.cgi?id=346754)

Change-Id: I734459daf9f502baa95ebb89432819964e0ce304
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-27 11:33:03 +00:00
David Faure f163912b5d QMimeMagicRule: endianness fixes
* apply endianness to the mask as well
* do not apply endianness to "host" entries, they were wrongly behaving
exactly like "big endian" entries.

The issue with the mask was detected by the audio/aac magic
 <match type="big16" value="0xFFF0" mask="0xFFF6" offset="0"/>
which failed to identify the test file ct_faac-adts.aac since it was
applying the mask 0xFFF6 instead of 0xF6FF (on a little-endian machine).

Not yet detected by tst_qmimedatabase which is based on shared-mime-info 1.0,
will be covered by the upgrade to 1.8 in dev.

Change-Id: I4fb7af2d367099817e712b14f2a031066d0ac432
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-27 11:28:55 +00:00
David Faure 7322c65ba7 QMimeMagicRule: fix off by one in the number of bytes checked
Since the loop says p <= e, no +1 should be added to e.

Testcase:

The magic for application/x-gameboy-rom says
<match type="byte" value="0x0" mask="0x80" offset="323"/>
and this code was checking both byte 323 and byte 324, finding a match
at pos 324, returning application/x-gameboy-rom erroneously.

Given the magic for application/x-gameboy-color-rom:
<match type="byte" value="0x80" mask="0x80" offset="323"/>
the expected result for game-boy-color-test.gbc is application/x-gameboy-color-rom

Not yet detected by tst_qmimedatabase which is based on shared-mime-info 1.0,
will be covered by the upgrade to 1.8.

Change-Id: I2396cb1ccfb26db5a24d5551fef493cc0b98a247
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-27 08:44:32 +00:00
Oswald Buddenhagen 8f49da6c18 ... and so configureapp.exe disappeareth
Change-Id: I3fd9f2b0d4cf05a625484fce21532da8563cd62c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-23 13:45:59 +00:00
Oswald Buddenhagen a71b53d600 fix sysrootification of install paths
initially, the idea was that QLibraryInfo would receive a
pre-sysrootified ExtPrefix from the builtin qt.conf. matching this
against the sysroot would then tell us whether to sysrootify the Prefix
from a "regular" qt.conf as well.
however, this would have lead to some major ugliness and inconsistency
between the code paths, so i changed my mind.
unfortunately, i failed to adjust the remaining code, leading to
169a40d51 entirely breaking sysrootification ...

the proper (and nicely consistent) solution is to introduce a
SysrootifyPrefix key to qt.conf. this is user-accessible as well, so as
a bonus it is now possible to adjust the setting at qmake installation
time. incidentally, this omission was the last thing that prevented
using the same qmake host build for any imaginable configuration of the
same qt version ... i think.

Change-Id: Ic0eebf21f93651f6374628c0ad8b206d696a4a7e
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2016-12-22 11:48:05 +00:00
David Faure b9edbb5d54 QLockFile: make sure we encode the hostname as UTF-8 in the lock file
We chose to use UTF-8 as it allows us to ensure there's no mistaking the
hostname in case the locale is changed, if the host name contains
characters outside of US-ASCII.

But this didn't work because the code that wrote the hostname always
used the local 8-bit codec instead of UTF-8. On Unix, we used the
result of gethostname(3) directly, which is supposedly on the locale codec.
This commit doesn't fix Windows, which requires _wgetenv, the plan being
to encapsulate that with a qEnvironmentVariable() method.

[ChangeLog][QtCore][QLockFile] Fixed a bug that caused QLockFile not to
recognize a stale lock file if the machine's hostname contained non-US-
ASCII characters, on Unix. A Windows fix is still pending.

Task-number: QTBUG-49640
Change-Id: Ib9d045544ff370ec901626658a84ec4e6575fe21
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-21 15:57:40 +00:00
Stephen Kelly baad82d242 QIPM: Persist model indexes after emitting layoutChange, not before
Callers can persist a QModelIndex which was not persisted before in a
slot connected to the signal, and such a persisted index must be updated
in the course of the layoutChange.

Store the indexes to persist after emitting the signal.

Task-number: QTBUG-32981
Change-Id: Ibee4c0d84817d72603a03fe5b22fdeefeac0695e
Reviewed-by: David Faure <david.faure@kdab.com>
2016-12-21 01:37:50 +00:00
Stephen Kelly 0874861bcc QSFPM: Remove data manipulation from move handlers
Similar to the fix in the parent commit, incorrect updating of the
internal data structures during layout changes can lead to dangling
pointers being dereferenced later.  Moves are treated as layoutChanges
by this proxy by forwarding to the appropriate method.  However, data is
incorrectly cleared prior to that forwarding.  Remove that, and let the
layoutChange handling take appropriate action.

Change-Id: Iee951e37152328a4e6a5fb8e5385c32a2fe4c0bd
Reviewed-by: David Faure <david.faure@kdab.com>
2016-12-21 01:37:40 +00:00
Stephen Kelly 3bd0fd8f97 QSFPM: Fix handling of source model layout change
In sourceLayoutAboutToBeChanged the source model update is ignored if
the affected parents are filtered out anyway.  The same logic is
attempted in the sourceLayoutChanged slot, but there the early-return
logic is applied too late - the mapping is cleared before performing the
early-return.  Because pointers into the mapping are used in the
internalPointer of QModelIndexes in this class, persistent indexes used
later will segfault when attempting to dereference it.

Additionally, if a parent becomes invalid as a result of the
layoutChange, it would be filtered out by the condition in the loop,
resulting in a different result in the comparison of emptiness of the
parents container.

Fix that by persisting the parent's container, and performing the test
for early-return before clearing the mapping.

Task-number: QTBUG-47711
Task-number: QTBUG-32981
Change-Id: If45e8a1c97d39454160f52041bc9ae7e337dce97
Reviewed-by: David Faure <david.faure@kdab.com>
2016-12-21 01:37:31 +00:00
Thiago Macieira 7ca66b1e66 Fix race condition in QFactoryLoader: lock the mutex we already have
The process of loading a plugin is examplified by the qLoadPlugin
function (though not all users of QFactoryLoader use this function, they
all do something similar):

    const int index = loader->indexOf(key);
    if (index != -1) {
        QObject *factoryObject = loader->instance(index);
        if (FactoryInterface *factory = qobject_cast<FactoryInterface *>(factoryObject))
            if (PluginInterface *result = factory->create(key, std::forward<Args>(args)...))
                return result;
    }

QFactoryLoader::indexOf already locked the mutex, but not
QFactoryLoader::instance. This commit fixes that.

Note that calling the virtual create() in the plugin's factory is not
protected by the mutex. Each plugin's factory must be thread-safe and
also create an object that works on any thread too. It's also the
responsibility of the caller of qLoadPlugin to ensure that it's called
thread-safely.

Task-number: QTBUG-42855
Change-Id: I63e21df51c7448bc8b5ffffd148ebee33d4c47de
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-12-17 04:11:09 +00:00
Liang Qi 9bfe3ab71e Merge remote-tracking branch 'origin/5.8.0' into 5.8
Conflicts:
	doc/global/qt-cpp-defines.qdocconf
	src/plugins/platforms/android/qandroidplatformopenglcontext.h
	src/plugins/platforms/android/qandroidplatformtheme.h

Change-Id: I13d51cc66f708138ff4d667ceea7d515992e58a4
2016-12-16 09:45:16 +01:00
Thiago Macieira 9f96e4f431 Work around old Clang bug parsing of NSDMI referring to members
Clang pre-3.4 didn't like this and it's used in Xcode 5.1 (which we need
to support for 5.8).

error: 'this' cannot be implicitly captured in this context
    typename T::const_iterator i = c.begin(), e = c.end();
                                   ^

Task-number: QTBUG-57488
Change-Id: I63e21df51c7448bc8b5ffffd148e688d7c9b89d6
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-12-16 04:05:56 +00:00
Oliver Wolff 56a167d30c winrt: Check for removed timers after sending events
After all the check makes sense here. If a timer was removed as a result
of sendEvent and it was not at the end of the list the list is not
shrunk but the timer info's id is just set to INVALID_TIMER_ID.

Additionally the timer's object should be fetched before we unlock the
locker as timerIdToObject is changed in removeTimer and we might access
a nullptr if the timer has been removed.

Reverts c83ba01f7b

Task-number: QTBUG-56756
Change-Id: Ib1a04c02fbfcf4c939b4891d42f954dc9e87149e
(cherry picked from commit 8f2088db17)
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
2016-12-15 05:20:45 +00:00
Topi Reinio cfbe5df48c qdoc: Define Q_COMPILER_UNICODE_STRINGS
Some public functions in QString and QDebug are declared inside
Q_COMPILER_UNICODE_STRINGS. This commit defines it for QDoc, and
adds documentation for QDebug functions that are now visible to
QDoc.

Change-Id: Ia7f2501c1dc7b8244dcc3ce4adcd2019fdbffcb6
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-15 05:20:24 +00:00
Alexander Volkov b57e7c0963 doc: Replace Q_DECL_OVERRIDE by override in snippets
And remove redundant virtual.

Change-Id: If0650409b88ad962f6713d082d9095675f4c68e8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: hjk <hjk@qt.io>
2016-12-14 16:49:23 +00:00
Oswald Buddenhagen 169a40d511 move generation of qconfig.cpp (and qt.conf) to qmake-based configure
this moves us another step towards the "outer" configure doing just
minimal bootstrapping of qmake.

a challenge here was that so far, qmake itself needed qconfig.cpp. this
was replaced by usage of a qt.conf file instead of compiled-in values.
however, to make the executable still self-contained, that qt.conf is
embedded into it (by simple appending of a fixed signature and the text
file).

the qmake with the embedded qt.conf is not used for the qt build itself,
which instead relies on the qt.conf in bin/ as before. however, due to
the missing built-in values, this file now needs to contain more
information than before. but except for a minimal version that is needed
to start up qmake/configure at all, that file is now also generated with
qmake. as some of the newly set up properties are subsequently used by
configure itself, qmake gains a (deliberately undocumented) function to
reload the qt.conf after it's fully populated.

unlike the old implementations, this one doesn't emit redundant qt.conf
entries which match the hard-coded fallbacks. omitting them leads to
leaner files which are more comprehensible.

Started-by: Paolo Angelelli <paolo.angelelli@qt.io>
Change-Id: I4526ef64b3c89d9851e10f83965fe479ed7f39f6
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
2016-12-13 18:56:12 +00:00
Allan Sandfeld Jensen bb0f29f82b Fix gcc 6.4 builds
The builtins clzs and ctzs have been removed. Additionally they were
never proper internal GCC builtins and shouldn't have been used in a
constexpr function in the first place. This patch removes the assumption
that they exist when BMI is available, and let GCC fall back to using
__builtin_clz and __builtin_ctz.

Change-Id: I3e0b4e246098bb9ce6ede28b311948260ef881b9
Task-number: QTBUG-56813
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-13 05:14:32 +00:00
Giuseppe D'Angelo 1da70af724 QMap: use std::less for defining an order between pointers
Reinterpret_cast()ing a pointer to a suitably sized integer is not guaranteed
to always give the same result for the same pointer (!). Therefore the
resulting integers are not comparable in a meaningful way. std::less is
supposed to be used to compare arbitrary pointers, so use it.

(Hopefully and reasonably, under the hood std::less does exactly what we
were doing, so this isn't BiC.)

Change-Id: I9960b3d6e35657fe7a25b842054f5d338280e850
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-12 11:15:22 +00:00
Friedemann Kleint 101449a4cf QDir::cd(): Handle UNC server paths correctly
Add a bool *ok out parameter to qt_normalizePathSegments() and return false
when ".." are left over for an absolute path, indicating an attempt to
change above root.
Factor out static helper qt_cleanPath() to be able to pass the return value
to QDir::cd() and return on failure from there.

Amends change 63f634322b, which did
not handle UNC paths.

Task-number: QTBUG-53712
Change-Id: I3e63a5dd0259306a0b99145348d815899582f78e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-12 07:25:22 +00:00
Friedemann Kleint f7b44f879c QDir::cleanPath(): Do not cd above root paths (UNC, WinRT)
Calling QDir::cleanPath() on "//server/path/.." resulted in "/".

Factor out a function to determine the root path part of an absolute
path for later use, and handle some special cases:
- Consider server name of "//server/path/.." as part of the prefix.
- Check on the root path for WinRT.

Task-number: QTBUG-53712
Change-Id: Ibddacf06212b6fc86fa74a5e4078df6cfd5b66f5
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-12 07:25:05 +00:00
Thiago Macieira 4c0760d327 Re-fix the build with ICC and cmath & math.h
Commit c35fef9d3b wasn't sufficient. The
problem is that there's a complex combination of libc headers (math.h),
C++ headers (cmath), which may be provided by three different sources on
Linux (glibc, gcc and ICC). On some combinations, the isnan macro leaks
from math.h or cmath and that's what the the commit above tried to fix.

On some other combinations, there's no macro but there's an ::isnan
function defined. When we do "using namespace std; return isnan(x);",
that causes a compilation error. This commit solves that by detecting
whether there is a macro defined.

error: more than one instance of overloaded function "isnan" matches the argument list
             function "isnan(double)"
             function "std::isnan(double)"
             argument types are: (double)

Change-Id: Iaeecaffe26af4535b416fffd148bf71826541bdd
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-12-10 19:31:45 +00:00
Thiago Macieira b0c321a8db Don't crash on QVLA construction from an empty std::initializer_list
The C++ standard says in [support.initlist.access]/1:

 constexpr const E* begin() const noexcept;

 Returns: A pointer to the beginning of the array. If size() == 0 the
 values of begin() and end() are unspecified but they shall be
 identical.

So we can't assume it's non-null. I didn't want to remove the Q_ASSERT,
so passing a non-null pointer to append() remains required. This patch
simply won't call append() if the initializer list is empty.

This was already tested, but the failure is with a compiler that is not
part of the Qt CI.

Task-number: QTBUG-57277
Change-Id: Iaeecaffe26af4535b416fffd1489806872b412ee
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-12-09 03:11:34 +00:00