Commit Graph

27 Commits (fedcaf0256f0094d77f171e4cdca2c4e2469e606)

Author SHA1 Message Date
Thiago Macieira a2df0ef57a Fix build with GCC 8: memset/memcpy/memmove of non-trivials
qarraydataops.h:73:17: error: ‘void* memset(void*, int, size_t)’ clearing an object of non-trivial type
‘struct TCBPoint’; use assignment or value-initialization instead [-Werror=class-memaccess]

Change-Id: I5d0ee9389a794d80983efffd152ce10eb557341f
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
2018-05-09 05:43:26 +00:00
Thiago Macieira c26c5b7d0d Silence GCC 8 warning on memcpy of movable types
This is similar to commit 342bb5b03a.

From GCC 8:

qarraydataops.h:84:17: error: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘class QStringRef’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Werror=class-memaccess]
[etc.]

Change-Id: I41d006aac5bc48529845fffd150e817e64973bec
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-02-04 08:33:59 +00:00
Thiago Macieira e4eaa62943 Disable bogus GCC 7 warning about string op overflow
Analysis proves this is a false positive:

 qarraydataops.h:69:17: error: ‘void* memset(void*, int, size_t)’: specified size between 18446744056529682436 and
 18446744065119617024 exceeds maximum object size 9223372036854775807 [-Werror=stringop-overflow=]

Change-Id: I7814054a102a407d876ffffd14b6ab0be9e222fc
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-06-03 03:35:54 +00:00
Marc Mutz 4df229ce50 QArrayDataOps: don't use value-initialization
... but default-initialization instead.

This bug may have rendered the diverse Qt::Uninitialized ctors
we have in Qt containers ineffective.

Change-Id: I5a369fa8527f19b6f8cc1a9f36512f6a0058839a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-02-22 08:03:46 +00:00
Marc Mutz e0a9a0e217 QArrayDataOps: do not use QTypeInfo::isStatic anymore
These days, QTypeInfoQuery and isRelocatable should be used.

Change-Id: Ieac2d7fcef6b1d5466b14bbd1066901d6e751a55
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-02-22 07:12:13 +00:00
Alexander Volkov 30d0e1770c Use std::enable_if instead of QEnableIf
Change-Id: Ideca8283141484cb6da47c50333f5c96e416f082
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2017-01-27 10:30:31 +00:00
Thiago Macieira 6cbc9c6d35 QArrayDataOps: silence Clang warning about memmove
Same as 9224255f13952e5b4092208c8cae1a31ab5c6a19: some Qt types are
polymorphic and are marked as movable, so Clang complains.

qarraydataops.h:608:27: error: destination for this 'memmove' call is a pointer to class containing a dynamic class 'QPixmap'; vtable pointer will be overwritten [-Werror,-Wdynamic-class-memaccess]
qarraydataops.h:608:61: error: source of this 'memmove' call is a pointer to class containing a dynamic class 'QPixmap'; vtable pointer will be moved [-Werror,-Wdynamic-class-memaccess]

Change-Id: Ib57b52598e2f452985e9fffd145861e025b81550
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
2016-06-16 04:34:05 +00:00
Jani Heikkinen 1a88b2f768 Updated license headers
From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/

Updated license headers to use new LGPL header instead of LGPL21 one
(in those files which will be under LGPL v3)

Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:25:24 +00:00
Jani Heikkinen 83a5694dc2 Update copyright headers
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.

Outdated header.LGPL removed (use header.LGPL21 instead)

Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)

Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination

Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-02-11 06:49:51 +00:00
Matti Paaso 974c210835 Update license headers and add new license files
- Renamed LICENSE.LGPL to LICENSE.LGPLv21
- Added LICENSE.LGPLv3
- Removed LICENSE.GPL

Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
2014-09-24 12:26:19 +02:00
João Abecasis 116d711cb1 Ensure mutating operations are NOT performed on immutable data
"Static" and "raw" data are immutable and shouldn't be modified from
within the QArrayData API. Adding the asserts here gives us a basic
safety net.

Change-Id: Ie2fec03fa1ef5a7f73c50e5badf8b8ab863728b4
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2014-07-28 08:39:59 +02:00
Thiago Macieira 1c63909ad8 Make sure all containers compile in strict-iterator mode
Unit-test this by making the QList, QVector, QHash and QMap unit tests
be duplicated under strict-iterator mode. There's no test for
QLinkedList.

The tst_Collections test does not compile under strict-iterator
mode. It generated over 15000 errors when I tried.

The strict iterators required a small change: the difference_type
typedef needs to match the operators that get distances
(operator-(iterator)) and move the iterator around (+, -, +=, -=, etc.).

Task-number: QTBUG-29608
Change-Id: I834873934c51d0f139a994cd395818da4ec997e2
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Jason McDonald <macadder1@gmail.com>
2014-02-22 04:38:01 +01:00
Friedemann Kleint 274e571be1 QtCore: Fix MSVC-64 warnings about integer truncation.
warning C4267: 'argument' : conversion from 'size_t' to ' int', possible
loss of data.

Change-Id: I79af7497420d468b5bc7c48c9ae21b86117519a9
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
2013-06-08 10:29:34 +02:00
Sergio Ahumada 07e3bcdc10 Remove QT_{BEGIN,END}_HEADER macro usage
The macro was made empty in ba3dc5f3b5
and is no longer necessary or used.

Discussed-on: http://lists.qt-project.org/pipermail/development/2013-January/009284.html
Change-Id: Id2bb2e2cabde059305d4af5f12593344ba30f001
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
2013-01-29 01:06:04 +01:00
Sergio Ahumada 48e0c4df23 Update copyright year in Digia's license headers
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-01-18 09:07:35 +01:00
Iikka Eklund be15856f61 Change copyrights from Nokia to Digia
Change copyrights and license headers from Nokia to Digia

Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
2012-09-22 19:20:11 +02:00
João Abecasis deb8d178fe Add erase operation to QArrayDataOps
Change-Id: I37d3ac465f5beddb5038e22e9cda32acb16c78fc
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-07-03 01:55:39 +02:00
Thiago Macieira 290655c8a2 Fix compilation of tests/auto/corelib/tools with QT_STRICT_ITERATORS
Most fixes are simple and quite obvious. The ones more involved are
the ones to QArrayData, which had probably not been compiled with
strict iterators thus far.

Change-Id: Ic4ff84c34fd9a04fd686fecaa98149b1c47c9346
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
2012-06-12 04:30:20 +02:00
João Abecasis 15e3ae6b9d Introduce QArrayDataOps::truncate
This enables a truncating resize() to be implemented. It is similar to
destroyAll(), but updates the size() as it goes, so it is safe to use
outside a container's destructor (and doesn't necessarily destroy all
elements).

The appendInitialize test was repurposed and now doubles as an
additional test for QArrayDataOps as well as exercising SimpleVector's
resize().

Change-Id: Iee94a685c9ea436c6af5b1b77486734a38c49ca1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-04-02 16:34:21 +02:00
João Abecasis 646dc6c5da Introduce QArrayDataOps::appendInitialize
Adds given number of default-initialized elements at end of array. For
POD types, initialization is reduced to a single memset call. Other
types get default constructed in place.

As part of adding a test for the new functionality the arrayOps test was
extended to verify objects are being constructed and assigned as
desired.

Change-Id: I9fb2afe0d92667e76993313fcd370fe129d72b90
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-04-02 16:34:21 +02:00
João Abecasis 558049e972 Fix warnings on shadowing data members with arguments
Example emitted by GCC 4.2.1:

    warning: declaration of ‘iter’ shadows a member of 'this'

Change-Id: I288da01c511a1404bf41881a6c96a5f3cd00d0a7
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
2012-02-22 01:53:15 +01:00
João Abecasis a78bcea586 Remove use of QT_MODULE from QArrayData stack
The macro was made empty in 4ecf82795d,
and is no longer necessary or used.

Change-Id: If000ff51729e41bdcd1b0409961cf94d50e5f172
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-02-06 17:34:31 +01:00
João Abecasis 475280d5fd Update license headers
- Updated copyright year, per 1fdfc2abfe
- Updated contact information, 629d6eda5c
- Drop "All rights reserved", 5635823e17

(Empty line added to maintain license header line count)

Change-Id: Ie401e2b6e40a4b79f4191377dd50dc60be801e1f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-02-06 17:34:29 +01:00
João Abecasis 9e9f7a482a Don't use RefCount int operations
, as those are going away.

This cleans use of those operations in the QArrayData stack.

Change-Id: I67705fe0a2f8d99ea13739b675021356a5736f83
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Reviewed-by: hjk <qthjk@ovi.com>
2012-01-17 15:37:47 +01:00
João Abecasis 3d61c5ca8f Add setSharable support in QArrayData stack
Making use of the same feature added in RefCount.

To keep with the intention of avoiding the allocation of "empty" array
headers, this introduces an unsharable_empty, which allows users to
maintain the "unsharable bit" on empty containers, without imposing any
actual allocations.

(Before anyone asks, there is no point to a zero-sized capacity-reserved
container so no other combinations are needed for now.)

Change-Id: Icaa40ac3100ad954fdc20dee0c991861136a5b19
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
2012-01-06 17:25:09 +01:00
João Abecasis 9c04f721a6 QArrayDataOps::insert
Inserting elements anywhere in the array requires moving the elements
that follow out of the way and writing in the new ones. Trivial for PODs
and almost as much for movable types.

For "complex" types, we start by extending the array with placement new
and copy constructing elements. Then, copy assignment resets the
elements that were previously part of the array.

QPodArrayOps uses non-throwing operations. QMovableArrayOps provides
full rollback in the face of exceptions (strong guarantee).
QGenericArrayOps enforces that no data is leaked (all destructors
called) and invariants are maintained on exceptions -- the basic
guarantee.

With 3 different implementations, 2 of which are non-trivial, this
operation is a good showcase for QArrayOpsSelector and the different
implementations. As such, it warrants its own commit.

Change-Id: I21d9b4cb8e810db82623bcd1d78f583ebf3b6cb7
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
2011-12-14 15:55:47 +01:00
João Abecasis 4da0b5fc02 QArrayDataOps: generic array operations
This class, the selector and underlying implementations provide
specialized operations on QArrayData, while allowing for optimized
implementations that benefit from type-specific information.

Currently, offering a generic implementation and specializations for
PODs (trivial ctor, dtor and move operations) and movable types (can be
trivially moved in memory).

Change-Id: I2c5829b66c2aea79f12f21debe5c01f7104c7ea3
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
2011-12-14 14:09:53 +01:00