Remove QT_STATIC_CONST

This macro is no longer used. It was introduced probably by mistake,
due to MSVC not following the strict string requirement of the C and
C++ standards by default (you can assign a string literal to a
non-const char*).

Change-Id: I4b221dd435191b0eea689dbed35915cf3206648b
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Mark all QChar static functions as [[gnu::const]]

The GCC documentation says that a const function is not allowed to read
global memory. This needs to be clarified: it's not allowed to read RW
global memory. It's fine to read read-only memory, as that is equivalent
to just pure code.

The QChar static out-of-line functions only lookup a property of the
given Unicode character and always return the same value.

The only exception is the decomposition() function, which returns a
QString and is therefore not allowed to be marked const.

Change-Id: Id36b2f84a1b8ff9db5acf1d4e59e8b3811068cff
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Add missing detection for some 64-bit architectures

Architectures missing were arm64, mips64, power64, s390x and sparcv9
(sparc64, but we're using the name that matches the Q_PROCESSOR_xxx
define, which in turn matches Solaris's psrinfo output).

Change-Id: I50b8152b3c42589b98db157b9efeae2be6a90414
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Enforce strict string literal behaviors with MSVC 2013

MSVC 2013 implements the behavior mandated by C++11 that removes the
ability to downconvert a string literal to a modifiable char*, but it's
not enabled by default. This option turns it on.

It's only enabled for release builds because the compiler page has a note
saying the Standard Library has bugs that prevent it from working in
debug mode. See http://msdn.microsoft.com/en-us/library/dn449508.aspx

Visual Studio "14" has this fixed.

[ChangeLog][Compiler Specific Changes] Release builds with Microsoft
Visual Studio 2013 now enable the standard-conforming C and C++ strict
string behavior. This option will be enabled in all builds with future
Visual Studio versions. Non-conforming code should be fixed for maximum
portability and correctness. See
http://msdn.microsoft.com/en-us/library/dn449508.aspx for more
information.

Change-Id: If5ba6cc8456209b268e047d1010710fe332b8312
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Don't look up a QChar's digit value more than necessary

It isn't a particularly complex operation, but why waste CPU cycles?

This is the kind of function that should be declared pure/const.

Change-Id: I13f03ef0f87607f7649c66beeb37614a31ef2a10
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
QObject: don't hold mutex when copying arguments in a QueuedConnection

QMetaType::create can call user code and we should not keep mutex held as
this may cause dead lock.

Make sure the tst_qobjectrace actually emit some signal so the test check
there is no race if the receiver object is destroyed while
the mutex is unlocked.

Task-number: QTBUG-39990
Change-Id: I56ca1ae7a11cd7b33c1a68727370972862e11c2f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QNX: Override QPlatformScreen::grabWindow

The grabWindow API basically should return a screenshot at the window
location. On QNX only the SCREEN_DISPLAY_MANAGER_CONTEXT can read from
the screen which will require root privileges.
At least this will fix some QWidget auto tests that rely on this API.

Change-Id: I350233173d3aecd376f48af9f650606a5cce6205
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Add context adoption support for WGL

This is trickier than the GLX and EGL implementations due to the
way pixel formats, windows and contexts work. Apart from some
restrictions, it should be fully functional nonetheless.

Add also some proper documentation.

Change-Id: Ia6e3eb1ab2701e439b8621b9092c2b0934ff2151
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Fix corruption with QQuickWidget and QOpenGLWidget on ANGLE

This only ocurred in -opengl dynamic builds on Windows, when using
ANGLE. The !QT_OPENGL_ES_2 code path did not correctly check for ES.

We also need to avoid using REPEAT, just to be safe on ES2 implementations
(embedded devices typically) that will not do repeat on non-power-of-two textures.

Task-number: QTBUG-39638
Change-Id: I2eeab6627c17255373193c0a0fec8923f711e28c
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Accessibility: Improve handling current value

Value interfaces on OS X and iOS can be strings, so can the value
property of MSAA. Before we'd always only send doubles, instead
change it to use strings as well.

Change-Id: I1b4410c68238ba7a69a5507d87c251f2ac61c568
Reviewed-by: Caroline Chao <caroline.chao@digia.com>