The first is "exact", not "more": qCalculateBlockSize. It ensures that
there's no overflow in multiplying, adding the header size or when
converting back to an int.
The second is the replacement for qAllocMore: it calculates the block
size like the first, but increases the block size to accommodate future
appends. The number of elements that fit in the block is also returned.
Task-number: QTBUG-41230
Change-Id: I52dd43c12685407bb9a6ffff13f5da09f816e667
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The implementation used the QString::compare_helper(QChar*, int, char*, int)
overload, which, however, interprets the rhs as a UTF-8 sequence, not as
Latin-1.
Fix by using the (QChar*, int, QLatin1String) overload.
Extend the test to cover this case, too.
Change-Id: I59b26d63d0caec036b80ef8818c75d0cebe519d2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As in 032efc2cb2, which added the
API-symmetry test, define the missing relational operators
locally in the test harness until they are fixed in the library.
Change-Id: Ic2688e6b6b3e028a9c29f1a5eb01058375ef3fe9
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Some constructors were added, but the comparison operators were missing.
The STL has them, so we ought have them too.
Change-Id: I030c14a3b355988f509716b4b1b1a835b3ab9481
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
POSIX.1-2001 allows quoting a zone name so that it can contain other
characters besides letters, by enclosing it in angle brackets ('<' and
'>'). This hadn't been used until recently (tzdata2016b), when the
Asia/Barnaul rule started using a zone name "+07" (the name variable
contained the value "<+07>-7").
Thanks to Paul Eggert for reporting and investigating the root cause.
Task-number: QTBUG-53071
Change-Id: Id5480807d25e49e78b79ffff1449bc410776cb66
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Makes it easier to apply similar changes across all related functions,
and to implement functions for new types by having the previous
approaches available in one place.
Change-Id: I3f0590d67d0e6deb1c6c856ab1de96b55b6af058
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
The C and C++ standards say it's undefined whether the preprocessor
supports macros that expand to defined() will operate as an ifdef.
Clang 3.9 started complaining about that fact.
One solution was to change QT_SUPPORTS to check for zero or one, which
means we need to change the #defines QT_NO_xxx to #define QT_NO_xxx 1.
The C standard says we don't need to #define to 0, as an unknown token
is interpreted as zero. However, that might produce a warning (GCC with
-Wundef), so changing the macro this way is not recommended.
Instead, we deprecate the macro and replace the uses with #ifdef/ndef.
Change-Id: Id75834dab9ed466e94c7ffff1444874d5680b96a
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The test should not depend on qWait explicitly
Change-Id: I13c01c47c9f7bae8b0c30afa2ac8550dc0fbf028
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
On some operating systems, tzdata files carry the Local Mean Time (LMT)
for the city in question, which better represents how time was tracked
before standard, hourly timezones were introduced in the early 20th
century. The test was asking for the data for 1653-02-09 and assumed
that it would find the first Central European Time (CET) rule, which
Germany didn't start using until 1893-04-01.
This fix allows us to remove the blacklist that had been applied to this
test without investigation. It wasn't related to OpenSUSE, aside from
the fact that OpenSUSE tzdata carries the LMT data.
Change-Id: Id5480807d25e49e78b79ffff1449bdaf46901367
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>
Where "correct" is defined by what std::shared_ptr does as well as what
happens when an intermediate QSharedPointer of the exact type of the
constructor behaves
That is,
QSharedPointer<X> ptr(new Y);
Behaves like
QSharedPointer<X> ptr;
{ QSharedPointer<Y> tmp(new Y); ptr = tmp; }
Change-Id: Id75834dab9ed466e94c7ffff14455d445f72592b
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
[ChangeLog][QtCore][QLibraryInfo] Added QLibraryInfo::version(), which
returns the current version of the Qt library as a QVersionNumber
object.
Change-Id: Ifea6e497f11a461db432ffff1448d4dc84ef57b1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
std::shared_ptr supports it. To resolve an ambiguous overload when a
literal 0 is passed as a parameter, the normal constructors needed to be
made a template, like std::shared_ptr.
Task-number: QTBUG-52569
Change-Id: Id75834dab9ed466e94c7ffff14451417892d2148
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
* A bunch of fixes and additions to the locale data
* Add new scripts from Unicode 8.0 and 9.0
* Map some potentially useful languages and territories
[ChangeLog][QtCore] QLocale data updated to CLDR v29
Change-Id: I759ccb27fe19be2722be913c5c2e6aa5f36e5c14
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Most containers have them in Qt 5.7, so add them
to QStringRef, too.
Brush up the docs, use the const_iterator typedef
in the API, for consistency with QString's docs.
[ChangeLog][QtCore][QStringRef] Added reverse iterators,
rbegin(), rend(), crbegin(), crend().
Change-Id: I3d2884a1b2faae02c610ab3871552b65bc6e2521
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Instead of relying on the QString relational operators to
implicitly convert the QChar to a QString, add relational
operator overloads that compare the QChar without first
turning it into a QString, saving one memory allocation
per comparison, and allowing to mark the operation as
nothrow.
Consequently, in tst_QStringBinOps, verify now that all
relational operations are noexcept.
The added overloads make QChar ==/!= int comparisons
ambiguous. De-ambiguate by providing a constrained
template that matches int and nothing but int (otherwise,
the QChar and the int versions would compete for a
QChar::SpecialCharacter argument, and end up creating
new ambiguities). This solution may not be perfect, but
it can be easily extended should more ambiguities crop up.
The existing overload deals with all patterns found in
qtbase.
Change-Id: I4156d918e9b9134c1da684b8b69e0ee526ad24e3
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
For QChar <> QStringRef, equality and inequality were already provided
(via QChar -> QString implicit conversions, to be fixed in a separate
patch). Missing were the less/greater than (or equal) operators.
Added.
For QChar <> QLatin1String, all relational operators were missing.
Added, too.
[ChangeLog][QtCore][QChar] Added missing operator{<,>,<=,>=}
comparing against QLatin1String and QStringRef.
[ChangeLog][QtCore][QChar] Added missing operator{==,!=}
comparing against QLatin1String.
Change-Id: I9941fe7e7281ea560b3bd5970cb9651ffadc1495
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Cleaning out the workarounds for the discontinued "Embedded Android"
platform of Boot2Qt.
Change-Id: I0ff9d770e82a43457fb7e5da0428f4597ead4038
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This patch adds a new option, QCommandLineOption::ShortOptionStyle, which helps
applications (such as compilers, so moc and now qdoc) which need to mix long-style
and short flags.
[ChangeLog][QtCore][QCommandLineOption] Added flags() and setFlags() methods.
Added ShortOptionStyle and HiddenFromHelp flags.
Change-Id: I944ce56aff2b28ecd6bb9d2d23c4e726e9d06647
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Math functions are linked in by default on INTEGRITY.
Change-Id: I737ae87c02b2321caca3975f69525731e839d1a7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Previously WinRT was using the UTC backend which fails on all platforms
for some QDateTime autotests related to timezone items. Hence switch to
the Windows implementation for WinRT as well.
However, the windows backend does query the registry heavily, which is
not supported on WinRT. Instead use the API version provided by the SDK.
Long-term we might want to switch to this version on desktop windows as
well, as direct registry access would not be required and we could
harmonize the codepaths for both platforms.
Change-Id: I620b614e9994aa77b531e5c34c9be1da7e272a30
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
Equality and inequality were already provided. Missing were the
less/greater than (or equal) operators.
Added.
Moved existing functions around and more similar to the new ones,
to make the whole code section a bit more manageable.
[ChangeLog][QtCore][QStringRef] Added missing operator{<,>,<=,>=}
comparing against QLatin1String and QString.
Change-Id: Idb3c4fa9b38421637987226f3cc1b77f5d4a6309
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
QRect::center() should be defined for any
QRect(x1,y1,x2,x2), INT_MIN <= x1, x2, y1, y2 <= INT_MAX
because the average of two signed integers is always
representable as a signed integer.
But not when it's calculated as (x1+x2)/2, since that
expression overflows when x1 > INT_MAX - x2.
Instead of playing games with Hacker's Delight-style
expressions, or use Google's patented algorithm, which
requires two divisions, take advantage of the fact that
int is not intmax_t and perform the calculation in the
qint64 domain. The cast back to int is always well-
defined since, as mentioned, the result is always
representable in an int.
Fix a test-case that expected a nonsensical result due
to overflow.
[ChangeLog][QtCore][QRect] Fixed integer overflow in
center(). This fixes the result for some corner-cases
like a 1x1 rectangle at (INT_MIN, INT_MIN), for which
the previous implementation could return anything
(due to invoking undefined behavior), but commonly
returned (0, 0).
Change-Id: I1a885ca6dff770327dd31655c3eb473fcfeb8878
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
The compiler can statically check that this is undefined
behavior:
tst_qrect.cpp:3173:52: warning: integer overflow in expression [-Woverflow]
<< QRect(QPoint(0,0), QPoint(INT_MAX+(0-INT_MIN),INT_MAX+(0-INT_MIN)));
~^~
tst_qrect.cpp:3173:72: warning: integer overflow in expression [-Woverflow]
<< QRect(QPoint(0,0), QPoint(INT_MAX+(0-INT_MIN),INT_MAX+(0-INT_MIN)));
~^~
Fix by skipping the test (like most of the others are
in the block).
Change-Id: I359a5e16db6c660c9f11d7dd8fbb40730bd63887
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
At the moment, only checks the relational operators, where
it already found some which do not compile. In order to
simplify the test, the missing operators are supplied by
the test harness until they are fixed in the library.
Change-Id: Ief5daefa68f15de5f8e559c9378ed83b715b69ee
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
This is what std::vector implementations usually do,
because it minimizes memory fragmentation and useless
allocations since no user will call clear() unless
she intends to append new data afterwards.
Fix calls to resize(0) that show how existing code
tried to work around the issue.
Adjust test. Port from QVERIFY(==) to QCOMPARE as a
drive-by.
[ChangeLog][QtCore][QVector] clear() now preserves
capacity. To shed capacity, call squeeze() or swap
with a default-constructed QVector object, see the
documentation for an example.
Change-Id: I9cebe611a97e027a89e821e64408a4741b31f1f6
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
It made us skip the rest of the test, not just the small set of
sub-tests that were conditioned by the if () in whose else it sat.
Change-Id: I5e914e0aeb9d5ba44b21966d071aaccbc590365d
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
QLatin1String can be used as a string-view-like type.
When attempting to do so in uic, mid() and at() were
found to be missing. Added the others for completeness.
Use the new functions in uic, for which they were
originally conceived.
[ChangeLog][QtCore][QLatin1String] Added at(),
operator[](), mid(), right(), left().
Change-Id: I4cfe3e9ed1157dedee754b2012d9678fe72b161e
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
The test was already blacklisted in openSUSE 13.1 and
was found not to work in 42.1 either.
Task-number: QTBUG-51172
Change-Id: I9f8f7b2251a230596a25183dee04ed37824f8ad7
Reviewed-by: Akseli Salovaara <akseli.salovaara@theqtcompany.com>
Similar to QMap::equal_range().
Will allow to easily fix inefficient code such as:
foreach (auto value, hash.values(key)) { ... }
[ChangeLog][QtCore][QHash] Added QHash::equal_range()
Change-Id: I6e19e25de632e897ad83d3141d9d07f0313f7200
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
I didn't add a transpose(), because r = r.transposed() is
perfectly capable of filling that role, and just as
efficient. Existing API mistakes are no excuse to create
more of them.
[ChangeLog][QtCore][QRect/QRectF] Added transposed().
Change-Id: Ic38721e9028496fc9b50f4d4cef2e7a60532eed8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
