tst_qfloat16::ordering tests that qfloat16 can be compared with a long
double. When on x86_64, conversion from qfloat16 to long double leads to
a linker error due to undefined reference to __extendhfxf2. This is a
bug in the VxWorks' toolchain. It has been acknowledged by WindRiver and
it's being tracked in ticket 00154117.
Since
- this is a platform problem and Qt has no control over it,
- the conversion won't work for any client code anyway, so not testing it
is not hiding any issues,
mitigate the problem for now by not compiling the problematic test code
on VxWorks.
Task-number: QTBUG-115777
Change-Id: Icf81da405d1392ae3bcacc61745a54d68b849b89
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 6ef631c7992cc81ead158c5c5801f689b21fc378)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This reverts commit 521e091bca1764d53ac06bb60707475d1032f5d5.
Reason for revert: The fix doesn't work with MSVC2022 compiler and block windows-11_23H2-msvc2022-developer-build integration. Need time to find proper solution.
Task-number: QTBUG-128498
Change-Id: Id938fa2119c7e4c053398b2a3693f3128e53f734
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 1017a0eaf1f9fd9cc37189f73840d85bf4a5664c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
- Added missing conversion from Qt::strong_ordering to
std::weak_ordering, std::partial_ordering.
- Added missing conversion from Qt::weak_ordering to
std::partial_ordering.
Usage of Q_IMPLICIT specifier in new std::*_ordering conversion functions leads to following ambiguity errors on WIN + MSVC configuration:
C:/Users/qt/work/qt/qtbase/src/corelib/global/qcompare.h(334): error C2440:
'static_cast': cannot convert from 'Qt::weak_ordering' to 'Qt::partial_ordering'
qcompare.h(334): note: 'Qt::partial_ordering::partial_ordering': ambiguous call to overloaded function
qcompare.h(249): note: could be 'Qt::partial_ordering::partial_ordering(Qt::partial_ordering &&)'
qcompare.h(153): note: or 'Qt::partial_ordering::partial_ordering(std::partial_ordering) noexcept'
qcompare.h(334): note: while trying to match the argument list '(Qt::weak_ordering)'
For solving the problem we can exclude the conversion function from the argument list(make it explicit in case of MSVC).
Q_COMPARE_CAST_IMPLICIT is used for setting explicit or implicit specifier depending on the compiler type
[ChangeLog][QtCore][QtCompare] Added missing conversions
from Qt ordering types to std ordering types.
Fixes: QTBUG-127670
Pick-to: 6.7
Change-Id: I32a9a33fa8921c75b0e5a40bd413572f1bd6765a
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 521e091bca1764d53ac06bb60707475d1032f5d5)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
C++26 adds std::saturate_cast, so follow the established pattern of
other similar "backported" APIs. The old name is left around while
we port other submodules.
While at it, move qt_saturate's tests to the qnumeric test.
Change-Id: I653a2e3d936081378298a9c8e51e7c1a2d438d83
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 7447ad503330ed176cf369792ffb33b7e00a58d3)
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
It turns out that libstdc++ in -ansi mode defines __SIZEOF_INT128__,
but not the corresponding specializations of <type_traits> and
<limits>. This has caused numerous pain points over time, esp. since
is_signed doesn't work, so qt_saturate e.g. can't be used on qint128
inputs e.g.
After another such issue (cmp_equal()), we decided to require
<type_traits> and <limits> support for extended integer types in the
stdlib, or we will disable Qt's support for it, too.
So check that if QT_SUPPORTS_INT128 is defined, is_signed_v,
is_integral_v and numeric_limits work, too. Disable QT_SUPPORTS_INT128
when compiling with libstdc++ in __STRICT_ANSI__ mode (-ansi or
-std=c++NN instead of (the default) -std=gnu++NN).
[ChangeLog][Potentially Source-Incompatible Changes] Qt's support for
128-bit integers (qint128/quint128) is now conditional on support for
these types from the Standard Library, in particular <type_traits> and
<limits>. Qt no longer tries to work around missing Standard Library
support. As a consequence, e.g. GCC -ansi and GCC -std=c++NN (instead
of -std=gnu++NN, the default) builds will now no longer support these
types.
Task-number: QTBUG-119901
Change-Id: I8529e72a52a2f5da0f469bae543688e18220255f
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 9bb2ab5978625eee96f703871d5eca8e54b31386)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This is in preparation of adding some static assertions here that we
need to have evaluated in both "normal" and "strict" mode, namely
<type_traits> and <limits> support for qint128.
But this change is more general, so making it a separate change.
Turns out we already have (non-static) assertions here about <limits>
support for qint128. These force us to define precisely when
GCC/libstdc++ has gained <limits> support for __int128_t: the
timestamp of the __GLIBCXX__ macro is the Daily Bump immediately
preceding the gcc commit that fixed <limits>
(gcc/8eb9a45e87bdb81cb44948c651edee846c622a0f).
Let's hope no-one is running the prerelease version of GCC 10.3 from
that particular day, otherwise these might become XPASSes. But just
not testing is also wrong; we want to be informed about True Positives
and Negatives here.
Task-number: QTBUG-119901
Pick-to: 6.7 6.5
Change-Id: I6f9be047f846fff74133c466c5bed40d0039d60f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit e7c54248987d474cff9f49cad502822eb9dcb114)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Disable operator*() for void* type, because it otherwise causes
a compiler error:
qcomparehelpers.h:1103:18: error: forming reference to void
constexpr T& operator*() const noexcept { return *get(); }
^~~~~~~~
Use this as an opportunity to add more tests for operator*().
Amends ece36a7394.
Change-Id: I205b9989bd142ca9aa49f8f4d15854e591e3042b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 053b8ff7fedfe5aed29a91a82569c00cac466e9a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The standard does not provide any details on implementing operator!=(),
because it relies on the fact that it will be synthesized by the
compiler.
Our C++17 implementation, however, has to provide operator!=(), and we
made the mistake of copy-pasting the implementation from other
operators.
However, the isOrdered() check does not make sense for operator!=(),
because an unordered value is never equal to literal zero.
Fix the implementation for both Qt::partial_ordering and legacy
QPartialOrdering.
Amends 405244fe30 (for QPartialOrdering)
and bdd41f491c (for Qt::partial_ordering).
[ChangeLog][QtCore][QtCompare] Fixed a bug where
partial_ordering::unordered != 0 comparison produced an incorrect
result.
Fixes: QTBUG-127759
Pick-to: 6.7 6.5 6.2 5.15
Change-Id: I5008f72831c17dc7fa4ae181bfc8115198a691f0
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit d39441a2eb5658f3d4a01046c592adb827525118)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
... and figure out that it does not match the std implementation.
Fix will be provided in a follow-up commit.
Task-number: QTBUG-127759
Pick-to: 6.7 6.5 6.2 5.15
Change-Id: I51c4f086af531a81a6aae03f3462972437d41f97
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit fed1099ad2909cb8e75477e60e0a8b41db3f58d0)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The macro is defined or not, not defined to 1 or 0.
Amends 1d7950c946 (qhashfunctions.h),
0d85d0a72f (tst_qfloat16.cpp),
104a0a9ecd (tst_qglobal.cpp),
7a829eaf51 (tst_qtendian.cpp).
Pick-to: 6.7
Change-Id: I190e208f3c96f27100dae3eef512739afa8fadd9
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit c78994a887f56f1bc77a5fa0db3b98196851db5e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
QKeyCombination comes with a few operators that combine a Qt::Modifier
and a Qt::Key. These operators are normally defined in Qt's own
namespace (which by default is the global namespace), but indeed the
arguments are declared in the (nested) namespace `Qt`. This is wrong,
as their lookup will fail if a user places an unrelated operator| in
a custom namespace U and then tries to use QKeyCombination's operators:
the overload in namespace U will hide the ones defined globally;
unqualified lookup (as per [over.match.oper]) will search in the
namespaces associated with the parameters (QtNamespace::Qt), but the
operators are *not* in there!
In other words:
namespace NS {
X operator|(Y, Z);
auto kc = Qt::Shift | Qt::Key_A;
}
fails to compile if QKeyCombination's operator| is *not* defined in the
`Qt` namespace.
Fix this by indeed defining the operator where it belongs. The functions
are all inline and non-exported so there should not be any ABI issues.
Change-Id: I6d7a4e976fb109b7bf514011142b9a9573e507c5
Pick-to: 6.7 6.5 6.2
Fixes: QTBUG-126820
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 1f77e8566f71d98f4bc6bbf5092594e67a32f268)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The conditional noexcept in comparison operators is known to cause
problems in various cases.
For example, we had a problem in QBAV, where gcc and clang tried to
expand conditional noexcept before the class was complete, and, as a
result, discarded some of the QBAV constructors (see
fff6562f8c for a more detailed
explanation).
Other problem is related to the GHS compiler which tries to compile
the noexcept specification and provides a hard error instead of
SFINAE'ing out in case of failure
(see e1f45ad818 or
0ac0b412c754e53d167716f207be9d76a7fe16be as examples).
This patch reworks the macros to get rid of the conditional noexcept.
Instead, it demands that all operators are noexcept by default, and
adds another set of helper macros that can be used if it's not
possible to make the relational operators noexcept.
The new macros end with the _NON_NOEXCEPT suffix.
The patch also adds static_assert() to the generated operators to
verify that the proper macros are used. However, some platforms
(e.g. QNX and Integrity) fail to handle conditional noexcept on
lambdas, and so we have to use yet another macro to generate the
checks only on platforms that handle them properly.
This patch also applies the new approach to qtbase, adding noexcept
where possible, and falling back to the _NON_NOEXCEPT macros
otherwise.
As a drive-by: fix the macro implementation to use
QtOrderingPrivate::reversed() instead of manually reimplementing it.
I decided to pick the patch to 6.8, because it allows to fix some
questionable APIs (see QBAV story above).
Change-Id: I72f56778acb469f18b578b3418c0c41b4f6d62e7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit d292648d0bbac50388dae035dc34782accb3807f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
We used to mark Q_DECLARE_SHARED all our value classes in Qt 4 times,
but since many Qt types these days live in nested namespaces that
macro, which only works in the QT_NAMESPACE, has become less useful.
As we use it in more and more places and eventually add more
responsibilities to it, we don't want every module to define its
version by hand, like QT3D_DECLARE_SHARED did in 2016 already.
So add two namespace-aware versions of Q_DECLARE_SHARED, to be used
inside or outside nested namespaces.
Extend the test.
Despite the name, this is not a public macro.
Found missing Q_D_S in API-review, so picking this to 6.8 to aid with
fixing the 6.8 API.
Change-Id: I367ca0d5b005b64090de44f7b7541d8639f9a4e0
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 37b2b2ea4ef3cf494d23885de186a9519763e744)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
We seem to be using more and more of these, and their definition is a
bit subtle (need to have an explicit default ctor to avoid {} being
an initializer for the type).
Port the existing tag structs over to the new macro and add a test,
even though we found two users of QT_DEFINE_TAG in QtBase alone, one
of which is actually widely used (Disambiguated_t). There are more in
other modules.
Change-Id: I046bb2b70a2c7e79be2315d91c43e5fd2f0968a0
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 74a87a329498422db0dea3e469fb84704accbb2b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Check that it marks types are Q_RELOCATABLE_TYPE and adds the ADL
swap().
Pick-to: 6.7 6.5
Change-Id: Ibde0f4ad594e4a6b3636357da2fd211507293b60
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 91a96ea8fb100fca08b37eb3ba644083b3316e6d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
GCC 14 doesn't understand that neither q_check_ptr() nor
qCompare<int*> dereference the pointer.
Since the missing initialization isn't part of the test (except,
maybe, to provoke this warning if the implementation indeed changed to
dereference the pointer), fix by initializing the int, like we do for
the string a few lines below.
Amends the start of the public history.
Pick-to: 6.7 6.5 6.2 5.15
Change-Id: I6033e026f041b03821b776daa8e65586b8054136
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 8e914e07fbac8b40e51d0e6da764fa13a6af8181)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Dogfooding the new QtTest 6.8 feature.
Removes a lot of manual currentTestFailed() calls.
Change-Id: Id8bb0bad9b90b0a51315e9a9677d7009ebc090e4
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
(cherry picked from commit 561a1cae9df85a7a03f73ce77948ef235fff7c5d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
It's harmless and enables the pointer-idiomatic assignment of nullptr
without having to resort to reset().
Found in API-Review.
Change-Id: Id3a02f55b3578a29943f729d8d734fc3b1d3af11
Reviewed-by: Rym Bouabid <rym.bouabid@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 62d3b3c680ed2c6ca417f30fb3ca57482339c2c1)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The ctor is explicit so there should not be an assignment operator op=.
Changing the assignment to = Qt::totally_ordered_wrapper(ptr) is also
possible but if ptr is nullptr, I have to forward declare a pointer as
follow "T *n = nullptr" and then call Qt::totally_ordered_wrapper(n).
So I think adding reset(P) function is better.
Found in API Review.
Change-Id: I0acfcacc97a43f3cf8bfa65b2b16a65cae95b727
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit dc49d84abc35dfbbc4028a5f86017786cff13ae7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Unlike the old Qt::compareThreeWay() overload for raw pointers, the new
overloads for the Qt::totally_ordered_wrapper didn't allow to compare
wrappers of different (but compatible) pointer types (base vs derived).
This patch fixes it.
Ideally the constraints on operators in Qt::totally_ordered_wrapper
should use std::common_type_t, but we hit a bug in VxWorks that
prevents us from using it, so simply demand that the types are
convertible pointers. For now that should be enough, considering
that Qt::totally_ordered_wrapper only expects pointers as wrapped
types.
Found in API Review.
Change-Id: I9f7184468bea3e1f2944ca5347f0b79eded2f4d3
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit d73bdec05101b34745156c8cd4ea571f1223ad32)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
compareThreeWay() was supposed to be an operator<=>(), but for C++17.
The idea was that at some point when we unconditionally demand C++20,
people could just replace all the usages of compareThreeWay() with
operator<=>().
However, the Qt::compareThreeWay() overload for pointers is different
from the operator<=>() for pointers, because it is actually using
std::less{} or std::compare_three_way{} to do the comparison, thus
avoiding an UB. This is not bad as such, but can potentially lead to
UB when mass-replacing all compareThreeWay() calls with operator<=>().
To avoid this problem, deprecate the overload, and suggest to use
the Qt::totally_ordered_wrapper together with the respective overload
instead.
Found in API Review.
[ChangeLog][QtCore][QtCompare] Deprecate Qt::compareThreeWay()
overload for pointers.
Change-Id: I9c57871145dc3cb9656d6006db88b48a1553bef4
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit b1ae4334ea11f6942c7ce37a80a3aa98a3447809)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Provide the overloads as free functions in Qt namespace instead of
making them hidden friends of the Qt::totally_ordered_wrapper class,
because they should replace the to-be-deprecated overloads of
Qt::compareThreeWay() for raw pointers, so they should be
easily discoverable.
Also, we treat Qt::compareThreeWay() as a C++17 equivalent of
operator<=>(), so we need to have an overload for pointers (even
if it takes only the wrapped pointers).
Found in API Review.
[ChangeLog][QtCore][QtCompare] Added Qt::compareThreeWay() overloads
for Qt::totally_ordered_wrapper. These overloads do the comparison
using strict total ordering.
Change-Id: I2b5bc542c546330ca78c6284188c8167136a849e
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit d6e1df3513c7d5b6e93d68583fc4c1febb7bcd85)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Some compilers do not respect the
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
...
QT_WARNING_POP
incantation, so rewrite the test to use `template <typename X>` as
an Attribute parameter of the macros.
This allows to get rid of annoying warnings when compiling
tst_qcomparehelpers.
Amends de16185068.
Change-Id: I0b3a0f4ad3189d39f5662ce128d5e5f427543393
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit c6feed7e1d8b8ed991a81878c78bb361f038eaf6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The test data is provided as float, so we must obey [conv.fpint]/1 when
converting from float to integer types. There are values in the rows
that are outside of the range of short and shorter integers, so just
check the range.
Fixes: QTBUG-125889
Pick-to: 6.7
Change-Id: If3345151ddf84c43a4f1fffd17d405ee0cd00d44
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
This is meant to allow the buildsystem to add additional paths (for e.g.
QML imports) while still allowing the application to pick up the paths
where e.g. Qt's plugins are located – without having to query qtpaths or
the build system to locate them first, and to then also add them to
qt.conf.
QLibraryInfo::paths will return a list containing any values provided in
qt.conf, followed by the value that would have been provided if there
were no qt.conf file.
If no value is provided at all for a given key in qt.conf,
QLibraryInfo::path will behave as if no qt.conf file was provided,
instead of using LocationInfo::defaultValue.
For now, this is considered to be internal only, and won't be
documented.
Change-Id: Ic74c66b5cbde605b43336cd88c3f909999381f46
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
QLibraryInfo::path only allows a single value, however, at least for
QmlImportsPath we would benefit from having more than one to ease
deployment (note that this is unrelated to Qml2ImportsPath which was
necessary to support QML 1 and 2 in a single Qt install).
Users inside Qt will ported in follow-up patches where it makes sense.
[ChangeLog][QLibraryInfo] qt.conf now allows providing mutliple paths,
and QLibraryInfo has a new paths method to fetch all of them.
Task-number: QTBUG-124009
Change-Id: I78b3bcfa94c8d975dbd789f6826cda4fc5e60403
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
The Q_OBJECT is in the header so it should use the moc_*.cpp form.
Change-Id: I1aa91d9fd0013d7270d551326334ed4ee35f3c64
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Run qlogging_helper at relative working directory because
CMAKE_CURRENT_BINARY_DIR is not valid when test is run after
installed from package to target.
Task-number: QTBUG-118680
Change-Id: Ifd46d05562006ad4adf17517fae30ca5c63bc157
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Replace public friend operators operator==(), operator!=() of
QKeyCombination to friend method comparesEqual() and
Q_DECLARE_EQUALITY_COMPARABLE_LITERAL_TYPE macro.
Task-number: QTBUG-120304
Change-Id: I679f3fa5fcc4c675a763cc5a5fe0e0880439a64f
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Because it causes issues in the CI
Pick-to: 6.7
Change-Id: I8cd232abf1c4ee1d9417a8bff9aa3bcf5f893e8f
Reviewed-by: Tatiana Borisova <tatiana.borisova@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This reverts commit f4bac3ca17.
It broke builds with Xcode 15
Change-Id: Iee232658ede3dfb09d65f3f6a95410c069941421
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Types marked with [[clang::trivial_abi]] are considered to be trivially
relocatable for Clang. This is ABI compatible, since in Qt 6 we can
change the value of QTypeInfo::IsRelocatable "after the fact" -- it
simply means that code that doesn't get recompiled is pessimized.
Change-Id: I32e52bfb212c7919b2ebcf7832ede4404358330f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix the inclusions of stdlib headers to what is actually used in the
test.
Change-Id: I03ad4bdfd0b036bc4cee65b6bd2cd43ac7449722
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The QCOMPARE_EQ macro was mistyped.
This amends commit 5ea434b09f.
Change-Id: I313eb5ef02bb2266d659bdbe41d7d8f10691e0ca
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Add `f`-suffix to float assignments to avoid implicit conversion from
double to float.
Fixes: QTBUG-122303
Change-Id: I456e2952fe8c96783ab116ac4cb56a28b38de9d0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
QOperatingSystemVersion intentionally does not define operator==() and
operator!=() since ae072cd9c4.
It means that we cannot use comparison helper macros.
Still, we can manually define four relational operators or
operator<=>() in C++20 mode, and give the class a partial ordering.
We choose partial ordering, because versions of different OS types are
incomparable.
Implement the operators in terms of helper function compareThreeWay(),
which potentially allows to use this class in some templated code.
As a drive-by: make the static compare() function noexcept, because
it really is.
Fixes: QTBUG-120360
Change-Id: Id4c9ce740e42baa719ca0ee84146d087b21675c6
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As the comment says, on most RISC platforms, the return address need not
be on the stack in the first place. In fact, in all ones currently
supported by Qt, it's passed in a register to the callee, which has the
option of simply saving it in a callee-save register when calling leaf
functions. Even if it is using a frame pointer, the compiler can simply
use any register. That means unwinding the stack is not possible in the
absence of either debug information or stack-unwind information, neither
of which backtrace(3) will use.
Strictly speaking, even on x86 the compiler can use the RBP register for
any purpose and thus make getting the backtrace() impossible, but in
practice it seems to work.
Fixes: QTBUG-121389
Pick-to: 6.7
Change-Id: I5dd50a1a7ca5424d9e7afffd17acbd01ef916f5d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Some of relational operators in Qt are marked with QT_ASCII_CAST_WARN
(see e.g. String, QLatin1StringView).
If we want to convert these operators to the new comparison helper
macros, we need a way to preserve this attribute.
My tests show that simply adding the attribute to the helper
comparesEqual() and compareThreeWay() functions does not work, so we
need to explicitly add it to each of the generated operators.
Change-Id: I2940a70fe191326e8a2ebfb05b8da6e0f21a845c
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Previously the test consisted of just one cpp file. An attempt to add
more test cases to the file resulted in the minGW compiler complaining
about a too large object file:
Fatal error: tst_qcomparehelpers.cpp.obj: file too big
This patch splits the implementation into a header and a cpp file.
This itself does not fix the issues, but now we can add the new test
cases in a separate cpp file. This patch also adds some comments
that advocate doing so.
Pick-to: 6.7
Change-Id: I451987370fa4e18b7ad81dfc064ea016f1d0da47
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
According to QUIP-18 [1], all tests file should be
LicenseRef-Qt-Commercial OR GPL-3.0-only
[1]: https://contribute.qt-project.org/quips/18
Pick-to: 6.7
Task-number: QTBUG-121787
Change-Id: I9657df5d660820e56c96d511ea49d321c54682e8
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
They are working fine by now.
Change-Id: I24b1ac61791a850da85347c9718df678dfea2706
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Mårten Nordheim
Łukasz Matysiak
Tatiana Borisova
Giuseppe D'Angelo
Marc Mutz
Ivan Solovev
Rym Bouabid
Jari Helaakoski
Thiago Macieira
Fabian Kosmale
Lucie Gérard
Ari Parkkila
Tor Arne Vestbø
Joerg Bornemann
Isak Fyksen
Alexandru Croitor
Krzysztof Sommerfeld