Receiving the QStringList return value through RVO instead of
move-assigning it saves 48b in text size on optimized GCC 4.9
Linux AMD 64 builds.
Marking the QStringList const saves another 112b because the
following first() doesn't need to attempt a detach.
Change-Id: If6f25399e80de12114ce41c557bff6ee8c24938b
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
We already include <utility> in <qglobal.h>, so we might
as well provide a qHash() overload for std::pair.
[ChangeLog][QtCore] Added qHash(std::pair), defined in
<QHashFunctions>.
Change-Id: I0f61c513e82e05ce9d2e56bcf18f3be9e2da4da9
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Since 7a42c8c15c QTestTablePrivate no
longer cleans up the memory it holds in dataList. This will make tools
such as valgrind/address-sanitizer generate a lot of noise about
directly or indirectly leaked memory.
Change-Id: Ic0900ecdd7b76cda9f5366f3950bccde2f1b244c
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
- Don't detach QCoreApplication::arguments() by calling first(),
call constFirst()
- Use
QString foo;
foo += initial;
instead of
QString foo = initial;
where 'foo' receives more appends later (does not force an
initial capacity that is known to be too small).
- Use QStringBuilder more
- Don't use QStringLiteral in QStringBuilder expressions
- Reserve optionNameList. Its max. size is known ahead of time.
- Don't create optionNameStrings for hidden options.
The result was never used, they just served as placeholders
for the lock-step iteration that followed and wrapped the text.
- Don't create a QStringList to join(), append to the result
string directly.
- Cache the return value of option.valueName().
Not only is this faster, it also saves more than 2KiB in text
size on optimized GCC 4.9 Linux AMD64 builds.
Change-Id: Id1d88f3c36a521ac71f3a7436810ed31319077ae
Reviewed-by: David Faure <david.faure@kdab.com>
... iterate over the hash directly.
Prevents hash lookups and the creation of a temporary QList.
Saves over 376b in text size on optimized GCC 4.9 Linux
AMD64 builds.
Change-Id: I7f1a22da33b94bc91bec89f62c471f8279a5d702
Reviewed-by: Sérgio Martins <iamsergio@gmail.com>
QList of pointers is optimum, but QVector should provide the same
performance (we aren't using the beginning-of-list feature that QList
has and QVector doesn't).
But since we're using QVector elsewhere, this should be better.
Change-Id: I39cc61d0d59846ab8c23ffff14241c6715e2eb00
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
This was documented, but not what the code did.
Task-number: QTBUG-48529
Change-Id: I4849778c61dcae13be27c62b24717693c0c07d78
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
All but one of the callers sorted the list in at least one
code path, with code paths that use the list unsorted looking
suspiciously non-deterministic. The one caller that doesn't
sort the list doesn't use it at all (but uses the out parameter,
which none of the other callers do, suggesting that the function
be split into two at some point).
Change-Id: I178c1476919e4877ef4f4a3cc8934dbd04bd7a58
Reviewed-by: David Faure <david.faure@kdab.com>
Before this patch, Qt5Core_EXECUTABLE_COMPILE_FLAGS was populated with
-fPIC unconditionally. This causes warnings on MSVC, since the compiler
does not understand this flag.
In fact, -fPIC is only required in case an older release of CMake is
being used and the compiler is GCC 5.x (according to documentation), so
let's really add it just in this case.
Task-number: QTBUG-47942
Change-Id: I9d09b8b257a0647235d6d781ee5c023af34f8f88
Reviewed-by: Stephen Kelly <steveire@gmail.com>
CMP0054 changes CMake behavior wrt. interpreting quoted arguments in
if() statements. This change ensures that CMP0054 dev warnings are
never emitted no matter how polluted the environment, e.g. even
if the variable ${5.5.1} is defined and no matter whether CMP0054
is set to OLD, NEW or undefined.
Change-Id: Iee008497b333e2db23fb1adbf8b02252314ffa8a
Reviewed-by: Kevin Funk <kfunk@kde.org>
Reviewed-by: Stephen Kelly <steveire@gmail.com>
... but use the new key_iterators instead.
Saves creating a temporary QList just to iterate over it
and ~1.3KiB in text size on optimized GCC 4.9 Linux AMD64
builds.
Change-Id: Id5223fc5fcb4a4e7c012718c1bb2674b8ea0439d
Reviewed-by: Sérgio Martins <iamsergio@gmail.com>
This will be used in QTextStream to speed up padding processing.
[ChangeLog][QtCore][QString] Added resize(int, QChar) overload.
Change-Id: Id51f8cdacb167310157100b05cacf20e9a5d2716
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Calling QVector::erase(it) in a loop consitutes quadratic
behavior (O(N) function called O(N) times).
Fix by using std::remove_if(), which is linear.
Change-Id: I39c11231d604bc2d9506427bc3411b71d71b5569
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
resetTty() already does close the fd.
Fixes coverity CID89074.
Change-Id: I2d5fe9bf40b03ed5c249713c64f1dc2ae58ea84b
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
d->programGuard and its ID don't change when calling a
GL function, so check them only once, before entering
the loop, instead of once per iteration.
Cache d->programGuard->id().
Change-Id: I398da7a76823b2eb854b7b9d5af512adf9969fc9
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Fixes the xcb_glx plugin to follow the -opengl configure option for
default surface types. This makes it match closer to xcb_egl behavior
and makes the default match QOpenGLContext::openGLModuleType.
Change-Id: Iea3f8069fffefa46a32945eeeea1312566df129f
Task-number: QTBUG-50015
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Saves more than 2KiB in text size on optimized GCC 4.9 Linux
AMD64 builds, iow: ~0.5% of the total library size.
Change-Id: I84e1dc208da13eefdf1573c9b7ac7c9d76a7f5c7
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This needs to be handled a bit carefully, because Qt containers
will detach upon being iterated over using range-for.
In the cases of this patch, that cannot happen, because all
containers are local and marked as const (either by this patch
or before).
Separate patches will deal with other situations.
Range-for loops are much more efficient than foreach loops.
This patch shaves ~1.8KiB of text size off an optimized Linux
AMD64 GCC 4.9 build.
Change-Id: I5c58658937ac4323594161bf94a2fce3c5667914
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This needs to be handled a bit carefully, because Qt containers
will detach upon being iterated over using range-for.
In the cases of this patch, that trivially cannot happen, because
all containers are marked as const when being assigned the rvalues
previously found on the rhs of the Q_FOREACH. The new code thus
does exactly what the old code did: take a const copy, then iterate
over it.
Separate patches will deal with other situations.
Range-for loops are much more efficient than foreach loops.
This patch shaves almost 4K of text size off an optimized Linux
AMD64 GCC 4.9 build.
Change-Id: Ida868b77d078cbfa0516d17e98e6f0a86fcdb7a3
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Probably correct.
The question is just why this code has survived for so many years.
Change-Id: Iaf01850476f9b066243abebb9ee6c5928d7ada19
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Probably correct.
The question is just why this code has survived for so many years.
Change-Id: Iaf01850476f9b066243abebb9ee6c5928d7ada19
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Also marking the error path as unlikely while I am
on it.
Fixes coverity CID154482.
Change-Id: I069fa7753e364ff1b8a4449b7008dfa8aee73de5
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
If ev.isAccepted(), since list is gestures.toList(), the
first foreach loop would clear 'gestures', one item at
a time. The second foreach loop would then not execute
at all.
Make this case clearer by not executing either loop if
ev.isAccepted().
Make it more performant by not iterating twice, but once,
simply skipping those gestures in the second (remaining)
loop which would have been removed by the first one.
Also iterate over the equivalent QList instead of the QSet,
because the former is way more efficient.
Text size savings are present, but minimal. The runtime
savings are signficant, of course.
Change-Id: I3d5bfe99c5d3fcbe4c98816577846551c632f315
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
The old code dealt with a lot of special cases, probably to
avoid detaching. But the only case where deep copies are
avoided is if
a) there're no freeItemIndexes
b) there're no unindexedItems
c) the sort order is neither AcendingOrder nor DescendingOrder,
which is funny, since those are the only two values for
Qt::SortOrder. The code checks for SortOrder(-1), but
nowhere in Qt is such a sort order created.
Ergo, the deep copy was _never_ avoided.
So simplify the code by always building the result list from
the two input lists by copying all non-null items.
Saves over 2KiB in text size on optimized GCC 4.9 Linux AMD64
builds.
Change-Id: I8e739fb78896b2ad0bec45d05e86a76fe1ede04a
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
The test produces compiler warnings in release builds:
tst_qgraphicswidget.cpp: In member function 'void tst_QGraphicsWidget::setTabOrderAndReparent()':
tst_qgraphicswidget.cpp:1521:89: warning: 'w2' may be used uninitialized in this function [-Wmaybe-uninitialized]
tst_qgraphicswidget.cpp:1536:88: warning: 'w1' may be used uninitialized in this function [-Wmaybe-uninitialized]
Use arrays instead of the variables w1,2... and rewrite the helper
function compareFocusChain() to work on iterators allowing to
remove some temporary lists. Also return error messages in a
QByteArray ready for the Q[TRY_]VERIFY2 macros.
Change-Id: I43466921af59521d1faf00b75fe943508418abb3
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This patch makes possible to use Xinerama screens in XCB platform
plugin.
Task-number: QTBUG-48615
Change-Id: Ib4dbfcdfadc46d2875a2fc09e8b852181edfbed2
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
/home has been observed to be writable on some CI machines.
Add checks verifying existence and correct permissions.
Change-Id: Ie0f952e20d0d8eb0b57234eea2e2ecb78f5a7b58
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
If the variant contains a known json type (value, array, object or
document), simply unwrap those. In the case of the json document
wrap the contained object/array into a QJsonValue.
This should be the expected behavior, and makes more sense than
returning a null QJsonValue.
Task-number: QTBUG-41234
Change-Id: Id084fc11220d51aaf78b7694fd0ebef1411f5c51
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Path normalization should happen only when NormalizePathSegments is set.
Use a less intrusive fix for the setPath("//path") issue that
commit aba336c2b4 was about.
This allows fromLocalFile("/tmp/.") to keep the "/." at the end,
which is useful for appending to the path later on (e.g. to get "/tmp/.hidden")
Change-Id: Ibc3d4d3276c1d3aaee1774e21e24d01af38fa880
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
If the environment variable is set, but points to a non-existing directory,
the user would get a warning about chmod failing. Better be clear and
warn about the fact that the directory itself doesn't exist.
Also warn if $XDG_RUNTIME_DIR points to a file rather than a directory.
Task-number: QTBUG-48771
Change-Id: If84e72d768528ea4b80260afbbc18709b7b738a8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
In Qt3 this would indeed be equivalent to QHostAddress("0.0.0.0").
But since Qt4, it creates an address of type Null, and
QHostAddress()==QHostAddress("0.0.0.0") is no longer true.
Change-Id: I28025421e77c861783c612c2225be345dad5615a
Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>
Iterate over the original list instead.
Change-Id: I7be154c0e19074033df6f6e01f68d21a8904d2ee
Reviewed-by: Andreas Aardal Hanssen <andreas@hanssen.name>
QTouchEvent::touchPoints() returns a const-&, but the old
code took a copy, over which it then iterated, modifying
the touch points, causing (necessary) detaches of both the
list and the touch points.
Befriend QTouchEvent and modify the list in-place, avoiding
all detaches in the likely case that QTouchPoint contains the
only copy of the touch point list.
This is all the more important as the function is called once
for every item-under-mouse in sendTouchBeginEvent().
Port to C++11 range-for as a drive-by.
Change-Id: I2f74d19845711d97e3566886123b5d18d55db74c
Reviewed-by: Andreas Aardal Hanssen <andreas@hanssen.name>
Helps pinning the vtable to a single TU, which can
prevent false negative RTTI (incl. dynamic_cast and
catch()).
But mostly because it's rather pointless to have dtors
of polymophic function inline. Most of the time, the
code will be called through the vtable indirection,
anyway (which also means that an out-of-line copy of
the code needs to exist in any case). The inline
method will only be used when the compiler can prove
the dynamic type of an object.
Saves ~1.5KiB in text size on optimized GCC 4.9 Linux
AMD64 builds.
Change-Id: Ic4ce96da559252c8abc29d880530c84035db2306
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
It should the the actual class name, without any suffix.
This also allows us to use the painter font when rendering
CE_HeaderLabel and, as a consequence, change QHeaderView's
font through the usual methods.
Change-Id: I0b13ee349f5fa505be66a9c884c26885f5fc468f
Task-number: QTBUG-33855
Task-number: QTBUG-37153
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
while we evaluate the features themselves in precise mode (which is the
reason why they can error out), we do not want them to terminate
cumulative project evaluation.
Change-Id: I70f3e1bcb2ca04a70c74ff484749ca92c1cf6372
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
(cherry picked from qttools/90ee4094161b427c32581bca2f5286edb4fffdb1)
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
After 90e7cc172a, QStringList no longer
includes QDataStream.
This also reverts commit c1be0fbe7d, which
did the same in a worse way.
Change-Id: Ib10622b0da3b3450d29fc65dc5356fde75444a8f
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
(cherry picked from qttools/376501ae5a86859821c0e89b2e8fbc9906d11e07)
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
