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qtbase/src/corelib/global/qcompilerdetection.h
Andreas Holzammer 7e85e7ced7 Add initial clang-cl support to Qt 
This adds the functionality to build Qt with clang under Windows against
the Microsoft Visual Studio 2015 runtime.

In order to replicate this, a Clang 3.8 build with Visual Studio 2015
Update 1 is needed.

Adds compiler detection to Qt to distinguish correctly the clang compiler
and Windows with Visual Studio.

Clang has some built-in numeric functions, there is no need to use the
Microsoft versions, which also conflict here.

Task-number: QTBUG-50804
Change-Id: Ia4b267a298310ac7d73edf473b12792991249d8a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2016-02-11 12:54:06 +00:00

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLOBAL_H
# include <QtCore/qglobal.h>
#endif
#ifndef QCOMPILERDETECTION_H
#define QCOMPILERDETECTION_H
/*
The compiler, must be one of: (Q_CC_x)
SYM - Digital Mars C/C++ (used to be Symantec C++)
MSVC - Microsoft Visual C/C++, Intel C++ for Windows
BOR - Borland/Turbo C++
WAT - Watcom C++
GNU - GNU C++
COMEAU - Comeau C++
EDG - Edison Design Group C++
OC - CenterLine C++
SUN - Forte Developer, or Sun Studio C++
MIPS - MIPSpro C++
DEC - DEC C++
HPACC - HP aC++
USLC - SCO OUDK and UDK
CDS - Reliant C++
KAI - KAI C++
INTEL - Intel C++ for Linux, Intel C++ for Windows
HIGHC - MetaWare High C/C++
PGI - Portland Group C++
GHS - Green Hills Optimizing C++ Compilers
RVCT - ARM Realview Compiler Suite
CLANG - C++ front-end for the LLVM compiler
Should be sorted most to least authoritative.
*/
/* Symantec C++ is now Digital Mars */
#if defined(__DMC__) || defined(__SC__)
# define Q_CC_SYM
/* "explicit" semantics implemented in 8.1e but keyword recognized since 7.5 */
# if defined(__SC__) && __SC__ < 0x750
# error "Compiler not supported"
# endif
#elif defined(_MSC_VER)
# ifdef __clang__
# define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__)
# endif
# define Q_CC_MSVC (_MSC_VER)
# define Q_CC_MSVC_NET
# define Q_OUTOFLINE_TEMPLATE inline
# if _MSC_VER < 1600
# define Q_NO_TEMPLATE_FRIENDS
# endif
# define Q_COMPILER_MANGLES_RETURN_TYPE
# define Q_FUNC_INFO __FUNCSIG__
# define Q_ALIGNOF(type) __alignof(type)
# define Q_DECL_ALIGN(n) __declspec(align(n))
# define Q_ASSUME_IMPL(expr) __assume(expr)
# define Q_UNREACHABLE_IMPL() __assume(0)
# define Q_NORETURN __declspec(noreturn)
# define Q_DECL_DEPRECATED __declspec(deprecated)
# ifndef Q_CC_CLANG
# define Q_DECL_DEPRECATED_X(text) __declspec(deprecated(text))
# endif
# define Q_DECL_EXPORT __declspec(dllexport)
# define Q_DECL_IMPORT __declspec(dllimport)
/* Intel C++ disguising as Visual C++: the `using' keyword avoids warnings */
# if defined(__INTEL_COMPILER)
# define Q_DECL_VARIABLE_DEPRECATED
# define Q_CC_INTEL __INTEL_COMPILER
# endif
/* only defined for MSVC since that's the only compiler that actually optimizes for this */
/* might get overridden further down when Q_COMPILER_NOEXCEPT is detected */
# ifdef __cplusplus
# define Q_DECL_NOTHROW throw()
# endif
#elif defined(__BORLANDC__) || defined(__TURBOC__)
# define Q_CC_BOR
# define Q_INLINE_TEMPLATE
# if __BORLANDC__ < 0x502
# error "Compiler not supported"
# endif
#elif defined(__WATCOMC__)
# define Q_CC_WAT
/* ARM Realview Compiler Suite
RVCT compiler also defines __EDG__ and __GNUC__ (if --gnu flag is given),
so check for it before that */
#elif defined(__ARMCC__) || defined(__CC_ARM)
# define Q_CC_RVCT
/* work-around for missing compiler intrinsics */
# define __is_empty(X) false
# define __is_pod(X) false
# define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
# ifdef Q_OS_LINUX
# define Q_DECL_EXPORT __attribute__((visibility("default")))
# define Q_DECL_IMPORT __attribute__((visibility("default")))
# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
# else
# define Q_DECL_EXPORT __declspec(dllexport)
# define Q_DECL_IMPORT __declspec(dllimport)
# endif
#elif defined(__GNUC__)
# define Q_CC_GNU (__GNUC__ * 100 + __GNUC_MINOR__)
# if defined(__MINGW32__)
# define Q_CC_MINGW
# endif
# if defined(__INTEL_COMPILER)
/* Intel C++ also masquerades as GCC */
# define Q_CC_INTEL (__INTEL_COMPILER)
# ifdef __clang__
/* Intel C++ masquerades as Clang masquerading as GCC */
# define Q_CC_CLANG 305
# endif
# define Q_ASSUME_IMPL(expr) __assume(expr)
# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
# if __INTEL_COMPILER >= 1300 && !defined(__APPLE__)
# define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text)))
# endif
# elif defined(__clang__)
/* Clang also masquerades as GCC */
# if defined(__apple_build_version__)
# /* http://en.wikipedia.org/wiki/Xcode#Toolchain_Versions */
# if __apple_build_version__ >= 7000053
# define Q_CC_CLANG 306
# elif __apple_build_version__ >= 6000051
# define Q_CC_CLANG 305
# elif __apple_build_version__ >= 5030038
# define Q_CC_CLANG 304
# elif __apple_build_version__ >= 5000275
# define Q_CC_CLANG 303
# elif __apple_build_version__ >= 4250024
# define Q_CC_CLANG 302
# elif __apple_build_version__ >= 3180045
# define Q_CC_CLANG 301
# elif __apple_build_version__ >= 2111001
# define Q_CC_CLANG 300
# else
# error "Unknown Apple Clang version"
# endif
# else
# define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__)
# endif
# if __has_builtin(__builtin_assume)
# define Q_ASSUME_IMPL(expr) __builtin_assume(expr)
# else
# define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable()
# endif
# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
# if !defined(__has_extension)
# /* Compatibility with older Clang versions */
# define __has_extension __has_feature
# endif
# if defined(__APPLE__)
/* Apple/clang specific features */
# define Q_DECL_CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
# ifdef __OBJC__
# define Q_DECL_NS_RETURNS_AUTORELEASED __attribute__((ns_returns_autoreleased))
# endif
# endif
# else
/* Plain GCC */
# if Q_CC_GNU >= 405
# define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable()
# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
# define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text)))
# endif
# endif
# ifdef Q_OS_WIN
# define Q_DECL_EXPORT __declspec(dllexport)
# define Q_DECL_IMPORT __declspec(dllimport)
# elif defined(QT_VISIBILITY_AVAILABLE)
# define Q_DECL_EXPORT __attribute__((visibility("default")))
# define Q_DECL_IMPORT __attribute__((visibility("default")))
# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
# endif
# define Q_FUNC_INFO __PRETTY_FUNCTION__
# define Q_ALIGNOF(type) __alignof__(type)
# define Q_TYPEOF(expr) __typeof__(expr)
# define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
# define Q_DECL_UNUSED __attribute__((__unused__))
# define Q_LIKELY(expr) __builtin_expect(!!(expr), true)
# define Q_UNLIKELY(expr) __builtin_expect(!!(expr), false)
# define Q_NORETURN __attribute__((__noreturn__))
# define Q_REQUIRED_RESULT __attribute__ ((__warn_unused_result__))
# define Q_DECL_PURE_FUNCTION __attribute__((pure))
# define Q_DECL_CONST_FUNCTION __attribute__((const))
# if !defined(QT_MOC_CPP)
# define Q_PACKED __attribute__ ((__packed__))
# ifndef __ARM_EABI__
# define QT_NO_ARM_EABI
# endif
# endif
# if Q_CC_GNU >= 403 && !defined(Q_CC_CLANG)
# define Q_ALLOC_SIZE(x) __attribute__((alloc_size(x)))
# endif
/* IBM compiler versions are a bit messy. There are actually two products:
the C product, and the C++ product. The C++ compiler is always packaged
with the latest version of the C compiler. Version numbers do not always
match. This little table (I'm not sure it's accurate) should be helpful:
C++ product C product
C Set 3.1 C Compiler 3.0
... ...
C++ Compiler 3.6.6 C Compiler 4.3
... ...
Visual Age C++ 4.0 ...
... ...
Visual Age C++ 5.0 C Compiler 5.0
... ...
Visual Age C++ 6.0 C Compiler 6.0
Now:
__xlC__ is the version of the C compiler in hexadecimal notation
is only an approximation of the C++ compiler version
__IBMCPP__ is the version of the C++ compiler in decimal notation
but it is not defined on older compilers like C Set 3.1 */
#elif defined(__xlC__)
# define Q_CC_XLC
# define Q_FULL_TEMPLATE_INSTANTIATION
# if __xlC__ < 0x400
# error "Compiler not supported"
# elif __xlC__ >= 0x0600
# define Q_ALIGNOF(type) __alignof__(type)
# define Q_TYPEOF(expr) __typeof__(expr)
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
# define Q_PACKED __attribute__((__packed__))
# endif
/* Older versions of DEC C++ do not define __EDG__ or __EDG - observed
on DEC C++ V5.5-004. New versions do define __EDG__ - observed on
Compaq C++ V6.3-002.
This compiler is different enough from other EDG compilers to handle
it separately anyway. */
#elif defined(__DECCXX) || defined(__DECC)
# define Q_CC_DEC
/* Compaq C++ V6 compilers are EDG-based but I'm not sure about older
DEC C++ V5 compilers. */
# if defined(__EDG__)
# define Q_CC_EDG
# endif
/* Compaq has disabled EDG's _BOOL macro and uses _BOOL_EXISTS instead
- observed on Compaq C++ V6.3-002.
In any case versions prior to Compaq C++ V6.0-005 do not have bool. */
# if !defined(_BOOL_EXISTS)
# error "Compiler not supported"
# endif
/* Spurious (?) error messages observed on Compaq C++ V6.5-014. */
/* Apply to all versions prior to Compaq C++ V6.0-000 - observed on
DEC C++ V5.5-004. */
# if __DECCXX_VER < 60060000
# define Q_BROKEN_TEMPLATE_SPECIALIZATION
# endif
/* avoid undefined symbol problems with out-of-line template members */
# define Q_OUTOFLINE_TEMPLATE inline
/* The Portland Group C++ compiler is based on EDG and does define __EDG__
but the C compiler does not */
#elif defined(__PGI)
# define Q_CC_PGI
# if defined(__EDG__)
# define Q_CC_EDG
# endif
/* Compilers with EDG front end are similar. To detect them we test:
__EDG documented by SGI, observed on MIPSpro 7.3.1.1 and KAI C++ 4.0b
__EDG__ documented in EDG online docs, observed on Compaq C++ V6.3-002
and PGI C++ 5.2-4 */
#elif !defined(Q_OS_HPUX) && (defined(__EDG) || defined(__EDG__))
# define Q_CC_EDG
/* From the EDG documentation (does not seem to apply to Compaq C++):
_BOOL
Defined in C++ mode when bool is a keyword. The name of this
predefined macro is specified by a configuration flag. _BOOL
is the default.
__BOOL_DEFINED
Defined in Microsoft C++ mode when bool is a keyword. */
# if !defined(_BOOL) && !defined(__BOOL_DEFINED)
# error "Compiler not supported"
# endif
/* The Comeau compiler is based on EDG and does define __EDG__ */
# if defined(__COMO__)
# define Q_CC_COMEAU
/* The `using' keyword was introduced to avoid KAI C++ warnings
but it's now causing KAI C++ errors instead. The standard is
unclear about the use of this keyword, and in practice every
compiler is using its own set of rules. Forget it. */
# elif defined(__KCC)
# define Q_CC_KAI
/* Using the `using' keyword avoids Intel C++ for Linux warnings */
# elif defined(__INTEL_COMPILER)
# define Q_CC_INTEL (__INTEL_COMPILER)
/* Uses CFront, make sure to read the manual how to tweak templates. */
# elif defined(__ghs)
# define Q_CC_GHS
# elif defined(__DCC__)
# define Q_CC_DIAB
# if !defined(__bool)
# error "Compiler not supported"
# endif
/* The UnixWare 7 UDK compiler is based on EDG and does define __EDG__ */
# elif defined(__USLC__) && defined(__SCO_VERSION__)
# define Q_CC_USLC
/* The latest UDK 7.1.1b does not need this, but previous versions do */
# if !defined(__SCO_VERSION__) || (__SCO_VERSION__ < 302200010)
# define Q_OUTOFLINE_TEMPLATE inline
# endif
/* Never tested! */
# elif defined(CENTERLINE_CLPP) || defined(OBJECTCENTER)
# define Q_CC_OC
/* CDS++ defines __EDG__ although this is not documented in the Reliant
documentation. It also follows conventions like _BOOL and this documented */
# elif defined(sinix)
# define Q_CC_CDS
/* The MIPSpro compiler defines __EDG */
# elif defined(__sgi)
# define Q_CC_MIPS
# define Q_NO_TEMPLATE_FRIENDS
# if defined(_COMPILER_VERSION) && (_COMPILER_VERSION >= 740)
# define Q_OUTOFLINE_TEMPLATE inline
# pragma set woff 3624,3625,3649 /* turn off some harmless warnings */
# endif
# endif
/* VxWorks' DIAB toolchain has an additional EDG type C++ compiler
(see __DCC__ above). This one is for C mode files (__EDG is not defined) */
#elif defined(_DIAB_TOOL)
# define Q_CC_DIAB
# define Q_FUNC_INFO __PRETTY_FUNCTION__
/* Never tested! */
#elif defined(__HIGHC__)
# define Q_CC_HIGHC
#elif defined(__SUNPRO_CC) || defined(__SUNPRO_C)
# define Q_CC_SUN
# define Q_COMPILER_MANGLES_RETURN_TYPE
/* 5.0 compiler or better
'bool' is enabled by default but can be disabled using -features=nobool
in which case _BOOL is not defined
this is the default in 4.2 compatibility mode triggered by -compat=4 */
# if __SUNPRO_CC >= 0x500
# define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
/* see http://developers.sun.com/sunstudio/support/Ccompare.html */
# if __SUNPRO_CC >= 0x590
# define Q_ALIGNOF(type) __alignof__(type)
# define Q_TYPEOF(expr) __typeof__(expr)
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
# endif
# if __SUNPRO_CC >= 0x550
# define Q_DECL_EXPORT __global
# endif
# if __SUNPRO_CC < 0x5a0
# define Q_NO_TEMPLATE_FRIENDS
# endif
# if !defined(_BOOL)
# error "Compiler not supported"
# endif
/* 4.2 compiler or older */
# else
# error "Compiler not supported"
# endif
/* CDS++ does not seem to define __EDG__ or __EDG according to Reliant
documentation but nevertheless uses EDG conventions like _BOOL */
#elif defined(sinix)
# define Q_CC_EDG
# define Q_CC_CDS
# if !defined(_BOOL)
# error "Compiler not supported"
# endif
# define Q_BROKEN_TEMPLATE_SPECIALIZATION
#elif defined(Q_OS_HPUX)
/* __HP_aCC was not defined in first aCC releases */
# if defined(__HP_aCC) || __cplusplus >= 199707L
# define Q_NO_TEMPLATE_FRIENDS
# define Q_CC_HPACC
# define Q_FUNC_INFO __PRETTY_FUNCTION__
# if __HP_aCC-0 < 060000
# define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
# define Q_DECL_EXPORT __declspec(dllexport)
# define Q_DECL_IMPORT __declspec(dllimport)
# endif
# if __HP_aCC-0 >= 061200
# define Q_DECL_ALIGN(n) __attribute__((aligned(n)))
# endif
# if __HP_aCC-0 >= 062000
# define Q_DECL_EXPORT __attribute__((visibility("default")))
# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
# define Q_DECL_IMPORT Q_DECL_EXPORT
# endif
# else
# error "Compiler not supported"
# endif
#else
# error "Qt has not been tested with this compiler - see http://www.qt-project.org/"
#endif
/*
* C++11 support
*
* Paper Macro SD-6 macro
* N2341 Q_COMPILER_ALIGNAS
* N2341 Q_COMPILER_ALIGNOF
* N2427 Q_COMPILER_ATOMICS
* N2761 Q_COMPILER_ATTRIBUTES __cpp_attributes = 200809
* N2541 Q_COMPILER_AUTO_FUNCTION
* N1984 N2546 Q_COMPILER_AUTO_TYPE
* N2437 Q_COMPILER_CLASS_ENUM
* N2235 Q_COMPILER_CONSTEXPR __cpp_constexpr = 200704
* N2343 N3276 Q_COMPILER_DECLTYPE __cpp_decltype = 200707
* N2346 Q_COMPILER_DEFAULT_MEMBERS
* N2346 Q_COMPILER_DELETE_MEMBERS
* N1986 Q_COMPILER_DELEGATING_CONSTRUCTORS
* N2437 Q_COMPILER_EXPLICIT_CONVERSIONS
* N3206 N3272 Q_COMPILER_EXPLICIT_OVERRIDES
* N1987 Q_COMPILER_EXTERN_TEMPLATES
* N2540 Q_COMPILER_INHERITING_CONSTRUCTORS
* N2672 Q_COMPILER_INITIALIZER_LISTS
* N2658 N2927 Q_COMPILER_LAMBDA __cpp_lambdas = 200907
* N2756 Q_COMPILER_NONSTATIC_MEMBER_INIT
* N2855 N3050 Q_COMPILER_NOEXCEPT
* N2431 Q_COMPILER_NULLPTR
* N2930 Q_COMPILER_RANGE_FOR
* N2442 Q_COMPILER_RAW_STRINGS __cpp_raw_strings = 200710
* N2439 Q_COMPILER_REF_QUALIFIERS
* N2118 N2844 N3053 Q_COMPILER_RVALUE_REFS __cpp_rvalue_references = 200610
* N1720 Q_COMPILER_STATIC_ASSERT __cpp_static_assert = 200410
* N2258 Q_COMPILER_TEMPLATE_ALIAS
* N2659 Q_COMPILER_THREAD_LOCAL
* N2660 Q_COMPILER_THREADSAFE_STATICS
* N2765 Q_COMPILER_UDL __cpp_user_defined_literals = 200809
* N2442 Q_COMPILER_UNICODE_STRINGS __cpp_unicode_literals = 200710
* N2640 Q_COMPILER_UNIFORM_INIT
* N2544 Q_COMPILER_UNRESTRICTED_UNIONS
* N1653 Q_COMPILER_VARIADIC_MACROS
* N2242 N2555 Q_COMPILER_VARIADIC_TEMPLATES __cpp_variadic_templates = 200704
*
* For any future version of the C++ standard, we use only the SD-6 macro.
* For full listing, see
* http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations
*
* C++ extensions:
* Q_COMPILER_RESTRICTED_VLA variable-length arrays, prior to __cpp_runtime_arrays
*/
#ifdef Q_CC_INTEL
# define Q_COMPILER_RESTRICTED_VLA
# define Q_COMPILER_VARIADIC_MACROS // C++11 feature supported as an extension in other modes, too
# define Q_COMPILER_THREADSAFE_STATICS
# if __INTEL_COMPILER < 1200
# define Q_NO_TEMPLATE_FRIENDS
# endif
# if __INTEL_COMPILER >= 1310 && !defined(_WIN32)
// ICC supports C++14 binary literals in C, C++98, and C++11 modes
// at least since 13.1, but I can't test further back
# define Q_COMPILER_BINARY_LITERALS
# endif
# if __cplusplus >= 201103L || defined(__INTEL_CXX11_MODE__)
# if __INTEL_COMPILER >= 1200
# define Q_COMPILER_AUTO_TYPE
# define Q_COMPILER_CLASS_ENUM
# define Q_COMPILER_DECLTYPE
# define Q_COMPILER_DEFAULT_MEMBERS
# define Q_COMPILER_DELETE_MEMBERS
# define Q_COMPILER_EXTERN_TEMPLATES
# define Q_COMPILER_LAMBDA
# define Q_COMPILER_RVALUE_REFS
# define Q_COMPILER_STATIC_ASSERT
# define Q_COMPILER_VARIADIC_MACROS
# endif
# if __INTEL_COMPILER >= 1210
# define Q_COMPILER_ATTRIBUTES
# define Q_COMPILER_AUTO_FUNCTION
# define Q_COMPILER_NULLPTR
# define Q_COMPILER_TEMPLATE_ALIAS
# ifndef _CHAR16T // MSVC headers
# define Q_COMPILER_UNICODE_STRINGS
# endif
# define Q_COMPILER_VARIADIC_TEMPLATES
# endif
# if __INTEL_COMPILER >= 1300
# define Q_COMPILER_ATOMICS
// constexpr support is only partial
//# define Q_COMPILER_CONSTEXPR
# define Q_COMPILER_INITIALIZER_LISTS
# define Q_COMPILER_UNIFORM_INIT
# define Q_COMPILER_NOEXCEPT
# endif
# if __INTEL_COMPILER >= 1400
// causes issues with QArrayData and QtPrivate::RefCount - Intel issue ID 6000056211, bug DPD200534796
//# define Q_COMPILER_CONSTEXPR
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
# define Q_COMPILER_EXPLICIT_CONVERSIONS
# define Q_COMPILER_EXPLICIT_OVERRIDES
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
# define Q_COMPILER_RANGE_FOR
# define Q_COMPILER_RAW_STRINGS
# define Q_COMPILER_REF_QUALIFIERS
# define Q_COMPILER_UNICODE_STRINGS
# define Q_COMPILER_UNRESTRICTED_UNIONS
# endif
# if __INTEL_COMPILER >= 1500
# if __INTEL_COMPILER * 100 + __INTEL_COMPILER_UPDATE >= 150001
// the bug mentioned above is fixed in 15.0.1
# define Q_COMPILER_CONSTEXPR
# endif
# define Q_COMPILER_ALIGNAS
# define Q_COMPILER_ALIGNOF
# define Q_COMPILER_INHERITING_CONSTRUCTORS
# ifndef Q_OS_OSX
// C++11 thread_local is broken on OS X (Clang doesn't support it either)
# define Q_COMPILER_THREAD_LOCAL
# endif
# define Q_COMPILER_UDL
# endif
# ifdef _MSC_VER
# if _MSC_VER == 1700
// <initializer_list> is missing with MSVC 2012 (it's present in 2010, 2013 and up)
# undef Q_COMPILER_INITIALIZER_LISTS
# endif
# if _MSC_VER < 1900
// ICC disables unicode string support when compatibility mode with MSVC 2013 or lower is active
# undef Q_COMPILER_UNICODE_STRINGS
// Even though ICC knows about ref-qualified members, MSVC 2013 or lower doesn't, so
// certain member functions (like QString::toUpper) may be missing from the DLLs.
# undef Q_COMPILER_REF_QUALIFIERS
// Disable constexpr unless the MS headers have constexpr in all the right places too
// (like std::numeric_limits<T>::max())
# undef Q_COMPILER_CONSTEXPR
# endif
# endif
# endif
#endif
#if defined(Q_CC_CLANG) && !defined(Q_CC_INTEL)
/* General C++ features */
# define Q_COMPILER_RESTRICTED_VLA
# define Q_COMPILER_THREADSAFE_STATICS
# if !__has_feature(cxx_exceptions)
# ifndef QT_NO_EXCEPTIONS
# define QT_NO_EXCEPTIONS
# endif
# endif
# if !__has_feature(cxx_rtti)
# define QT_NO_RTTI
# endif
# if __has_feature(attribute_deprecated_with_message)
# define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text)))
# endif
// Clang supports binary literals in C, C++98 and C++11 modes
// It's been supported "since the dawn of time itself" (cf. commit 179883)
# if __has_extension(cxx_binary_literals)
# define Q_COMPILER_BINARY_LITERALS
# endif
// Variadic macros are supported for gnu++98, c++11, c99 ... since 2.9
# if Q_CC_CLANG >= 209
# if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \
|| (defined(__cplusplus) && (__cplusplus >= 201103L)) \
|| (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L))
# define Q_COMPILER_VARIADIC_MACROS
# endif
# endif
/* C++11 features, see http://clang.llvm.org/cxx_status.html */
# if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
/* Detect C++ features using __has_feature(), see http://clang.llvm.org/docs/LanguageExtensions.html#cxx11 */
# if __has_feature(cxx_alignas)
# define Q_COMPILER_ALIGNAS
# define Q_COMPILER_ALIGNOF
# endif
# if __has_feature(cxx_atomic) && __has_include(<atomic>)
# define Q_COMPILER_ATOMICS
# endif
# if __has_feature(cxx_attributes)
# define Q_COMPILER_ATTRIBUTES
# endif
# if __has_feature(cxx_auto_type)
# define Q_COMPILER_AUTO_FUNCTION
# define Q_COMPILER_AUTO_TYPE
# endif
# if __has_feature(cxx_strong_enums)
# define Q_COMPILER_CLASS_ENUM
# endif
# if __has_feature(cxx_constexpr) && Q_CC_CLANG > 302 /* CLANG 3.2 has bad/partial support */
# define Q_COMPILER_CONSTEXPR
# endif
# if __has_feature(cxx_decltype) /* && __has_feature(cxx_decltype_incomplete_return_types) */
# define Q_COMPILER_DECLTYPE
# endif
# if __has_feature(cxx_defaulted_functions)
# define Q_COMPILER_DEFAULT_MEMBERS
# endif
# if __has_feature(cxx_deleted_functions)
# define Q_COMPILER_DELETE_MEMBERS
# endif
# if __has_feature(cxx_delegating_constructors)
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
# endif
# if __has_feature(cxx_explicit_conversions)
# define Q_COMPILER_EXPLICIT_CONVERSIONS
# endif
# if __has_feature(cxx_override_control)
# define Q_COMPILER_EXPLICIT_OVERRIDES
# endif
# if __has_feature(cxx_inheriting_constructors)
# define Q_COMPILER_INHERITING_CONSTRUCTORS
# endif
# if __has_feature(cxx_generalized_initializers)
# define Q_COMPILER_INITIALIZER_LISTS
# define Q_COMPILER_UNIFORM_INIT /* both covered by this feature macro, according to docs */
# endif
# if __has_feature(cxx_lambdas)
# define Q_COMPILER_LAMBDA
# endif
# if __has_feature(cxx_noexcept)
# define Q_COMPILER_NOEXCEPT
# endif
# if __has_feature(cxx_nonstatic_member_init)
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
# endif
# if __has_feature(cxx_nullptr)
# define Q_COMPILER_NULLPTR
# endif
# if __has_feature(cxx_range_for)
# define Q_COMPILER_RANGE_FOR
# endif
# if __has_feature(cxx_raw_string_literals)
# define Q_COMPILER_RAW_STRINGS
# endif
# if __has_feature(cxx_reference_qualified_functions)
# define Q_COMPILER_REF_QUALIFIERS
# endif
# if __has_feature(cxx_rvalue_references)
# define Q_COMPILER_RVALUE_REFS
# endif
# if __has_feature(cxx_static_assert)
# define Q_COMPILER_STATIC_ASSERT
# endif
# if __has_feature(cxx_alias_templates)
# define Q_COMPILER_TEMPLATE_ALIAS
# endif
# if __has_feature(cxx_thread_local)
# define Q_COMPILER_THREAD_LOCAL
# endif
# if __has_feature(cxx_user_literals)
# define Q_COMPILER_UDL
# endif
# if __has_feature(cxx_unicode_literals)
# define Q_COMPILER_UNICODE_STRINGS
# endif
# if __has_feature(cxx_unrestricted_unions)
# define Q_COMPILER_UNRESTRICTED_UNIONS
# endif
# if __has_feature(cxx_variadic_templates)
# define Q_COMPILER_VARIADIC_TEMPLATES
# endif
/* Features that have no __has_feature() check */
# if Q_CC_CLANG >= 209 /* since clang 2.9 */
# define Q_COMPILER_EXTERN_TEMPLATES
# endif
# endif
/* C++1y features, deprecated macros. Do not update this list. */
# if __cplusplus > 201103L
//# if __has_feature(cxx_binary_literals)
//# define Q_COMPILER_BINARY_LITERALS // see above
//# endif
# if __has_feature(cxx_generic_lambda)
# define Q_COMPILER_GENERIC_LAMBDA
# endif
# if __has_feature(cxx_init_capture)
# define Q_COMPILER_LAMBDA_CAPTURES
# endif
# if __has_feature(cxx_relaxed_constexpr)
# define Q_COMPILER_RELAXED_CONSTEXPR_FUNCTIONS
# endif
# if __has_feature(cxx_decltype_auto) && __has_feature(cxx_return_type_deduction)
# define Q_COMPILER_RETURN_TYPE_DEDUCTION
# endif
# if __has_feature(cxx_variable_templates)
# define Q_COMPILER_VARIABLE_TEMPLATES
# endif
# if __has_feature(cxx_runtime_array)
# define Q_COMPILER_VLA
# endif
# endif
# if defined(__has_warning)
# if __has_warning("-Wunused-private-field")
# define Q_DECL_UNUSED_MEMBER Q_DECL_UNUSED
# endif
# endif
#endif // Q_CC_CLANG
#if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && !defined(Q_CC_CLANG)
# define Q_COMPILER_RESTRICTED_VLA
# define Q_COMPILER_THREADSAFE_STATICS
# if Q_CC_GNU >= 403
// GCC supports binary literals in C, C++98 and C++11 modes
# define Q_COMPILER_BINARY_LITERALS
# endif
# if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \
|| (defined(__cplusplus) && (__cplusplus >= 201103L)) \
|| (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L))
// Variadic macros are supported for gnu++98, c++11, C99 ... since forever (gcc 2.97)
# define Q_COMPILER_VARIADIC_MACROS
# endif
# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
# if Q_CC_GNU >= 403
/* C++11 features supported in GCC 4.3: */
# define Q_COMPILER_DECLTYPE
# define Q_COMPILER_RVALUE_REFS
# define Q_COMPILER_STATIC_ASSERT
# endif
# if Q_CC_GNU >= 404
/* C++11 features supported in GCC 4.4: */
# define Q_COMPILER_AUTO_FUNCTION
# define Q_COMPILER_AUTO_TYPE
# define Q_COMPILER_EXTERN_TEMPLATES
# define Q_COMPILER_UNIFORM_INIT
# define Q_COMPILER_UNICODE_STRINGS
# define Q_COMPILER_VARIADIC_TEMPLATES
# endif
# if Q_CC_GNU >= 405
/* C++11 features supported in GCC 4.5: */
# define Q_COMPILER_EXPLICIT_CONVERSIONS
/* GCC 4.4 implements initializer_list but does not define typedefs required
* by the standard. */
# define Q_COMPILER_INITIALIZER_LISTS
# define Q_COMPILER_LAMBDA
# define Q_COMPILER_RAW_STRINGS
# define Q_COMPILER_CLASS_ENUM
# endif
# if Q_CC_GNU >= 406
/* Pre-4.6 compilers implement a non-final snapshot of N2346, hence default and delete
* functions are supported only if they are public. Starting from 4.6, GCC handles
* final version - the access modifier is not relevant. */
# define Q_COMPILER_DEFAULT_MEMBERS
# define Q_COMPILER_DELETE_MEMBERS
/* C++11 features supported in GCC 4.6: */
# define Q_COMPILER_CONSTEXPR
# define Q_COMPILER_NULLPTR
# define Q_COMPILER_UNRESTRICTED_UNIONS
# define Q_COMPILER_RANGE_FOR
# endif
# if Q_CC_GNU >= 407
/* GCC 4.4 implemented <atomic> and std::atomic using its old intrinsics.
* However, the implementation is incomplete for most platforms until GCC 4.7:
* instead, std::atomic would use an external lock. Since we need an std::atomic
* that is behavior-compatible with QBasicAtomic, we only enable it here */
# define Q_COMPILER_ATOMICS
/* GCC 4.6.x has problems dealing with noexcept expressions,
* so turn the feature on for 4.7 and above, only */
# define Q_COMPILER_NOEXCEPT
/* C++11 features supported in GCC 4.7: */
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
# define Q_COMPILER_EXPLICIT_OVERRIDES
# define Q_COMPILER_TEMPLATE_ALIAS
# define Q_COMPILER_UDL
# endif
# if Q_CC_GNU >= 408
# define Q_COMPILER_ATTRIBUTES
# define Q_COMPILER_ALIGNAS
# define Q_COMPILER_ALIGNOF
# define Q_COMPILER_INHERITING_CONSTRUCTORS
# define Q_COMPILER_THREAD_LOCAL
# if Q_CC_GNU > 408 || __GNUC_PATCHLEVEL__ >= 1
# define Q_COMPILER_REF_QUALIFIERS
# endif
# endif
/* C++11 features are complete as of GCC 4.8.1 */
# endif
# if __cplusplus > 201103L
# if Q_CC_GNU >= 409
/* C++1y features in GCC 4.9 - deprecated, do not update this list */
//# define Q_COMPILER_BINARY_LITERALS // already supported since GCC 4.3 as an extension
# define Q_COMPILER_LAMBDA_CAPTURES
# define Q_COMPILER_RETURN_TYPE_DEDUCTION
# endif
# endif
#endif
#if defined(Q_CC_MSVC) && !defined(Q_CC_INTEL)
# if defined(__cplusplus)
# if _MSC_VER >= 1400
/* C++11 features supported in VC8 = VC2005: */
# define Q_COMPILER_VARIADIC_MACROS
# ifndef __cplusplus_cli
/* 2005 supports the override and final contextual keywords, in
the same positions as the C++11 variants, but 'final' is
called 'sealed' instead:
http://msdn.microsoft.com/en-us/library/0w2w91tf%28v=vs.80%29.aspx
The behavior is slightly different in C++/CLI, which requires the
"virtual" keyword to be present too, so don't define for that.
So don't define Q_COMPILER_EXPLICIT_OVERRIDES (since it's not
the same as the C++11 version), but define the Q_DECL_* flags
accordingly: */
# define Q_DECL_OVERRIDE override
# define Q_DECL_FINAL sealed
# endif
# endif
# if _MSC_VER >= 1600
/* C++11 features supported in VC10 = VC2010: */
# define Q_COMPILER_AUTO_FUNCTION
# define Q_COMPILER_AUTO_TYPE
# define Q_COMPILER_DECLTYPE
# define Q_COMPILER_EXTERN_TEMPLATES
# define Q_COMPILER_LAMBDA
# define Q_COMPILER_NULLPTR
# define Q_COMPILER_RVALUE_REFS
# define Q_COMPILER_STATIC_ASSERT
// MSVC's library has std::initializer_list, but the compiler does not support the braces initialization
//# define Q_COMPILER_INITIALIZER_LISTS
//# define Q_COMPILER_UNIFORM_INIT
# endif
# if _MSC_VER >= 1700
/* C++11 features supported in VC11 = VC2012: */
# undef Q_DECL_OVERRIDE /* undo 2005/2008 settings... */
# undef Q_DECL_FINAL /* undo 2005/2008 settings... */
# define Q_COMPILER_EXPLICIT_OVERRIDES /* ...and use std C++11 now */
# define Q_COMPILER_CLASS_ENUM
# define Q_COMPILER_ATOMICS
# endif /* VC 11 */
# if _MSC_VER >= 1800
/* C++11 features in VC12 = VC2013 */
# define Q_COMPILER_DEFAULT_MEMBERS
# define Q_COMPILER_DELETE_MEMBERS
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
# define Q_COMPILER_EXPLICIT_CONVERSIONS
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
// implemented, but nested initialization fails (eg tst_qvector): http://connect.microsoft.com/VisualStudio/feedback/details/800364/initializer-list-calls-object-destructor-twice
// #define Q_COMPILER_INITIALIZER_LISTS
// implemented in principle, but has a bug that makes it unusable: http://connect.microsoft.com/VisualStudio/feedback/details/802058/c-11-unified-initialization-fails-with-c-style-arrays
// #define Q_COMPILER_UNIFORM_INIT
# define Q_COMPILER_RAW_STRINGS
# define Q_COMPILER_TEMPLATE_ALIAS
# define Q_COMPILER_VARIADIC_TEMPLATES
# endif /* VC 12 */
# if _MSC_FULL_VER >= 180030324 // VC 12 SP 2 RC
# define Q_COMPILER_INITIALIZER_LISTS
# endif /* VC 12 SP 2 RC */
# if _MSC_VER >= 1900
/* C++11 features in VC14 = VC2015 */
# define Q_COMPILER_ALIGNAS
# define Q_COMPILER_ALIGNOF
// Partial support, insufficient for Qt
//# define Q_COMPILER_CONSTEXPR
# define Q_COMPILER_INHERITING_CONSTRUCTORS
# define Q_COMPILER_NOEXCEPT
# define Q_COMPILER_RANGE_FOR
# define Q_COMPILER_REF_QUALIFIERS
# define Q_COMPILER_THREAD_LOCAL
// Broken, see QTBUG-47224 and https://connect.microsoft.com/VisualStudio/feedback/details/1549785
//# define Q_COMPILER_THREADSAFE_STATICS
# define Q_COMPILER_UDL
# define Q_COMPILER_UNICODE_STRINGS
// Uniform initialization is not working yet -- build errors with QUuid
//# define Q_COMPILER_UNIFORM_INIT
# define Q_COMPILER_UNRESTRICTED_UNIONS
# endif
# if _MSC_FULL_VER >= 190023419
# define Q_COMPILER_ATTRIBUTES
// Almost working, see https://connect.microsoft.com/VisualStudio/feedback/details/2011648
//# define Q_COMPILER_CONSTEXPR
# define Q_COMPILER_THREADSAFE_STATICS
# define Q_COMPILER_UNIFORM_INIT
# endif
# endif /* __cplusplus */
#endif /* Q_CC_MSVC */
#ifdef __cplusplus
# include <utility>
# if defined(Q_OS_QNX)
// QNX: test if we are using libcpp (Dinkumware-based).
// Older versions (QNX 650) do not support C++11 features
// _HAS_* macros are set to 1 by toolchains that actually include
// Dinkum C++11 libcpp.
# if !defined(__GLIBCXX__)
# if !defined(_HAS_CPP0X) || !_HAS_CPP0X
// Disable C++11 features that depend on library support
# undef Q_COMPILER_INITIALIZER_LISTS
# undef Q_COMPILER_RVALUE_REFS
# undef Q_COMPILER_REF_QUALIFIERS
# undef Q_COMPILER_UNICODE_STRINGS
# undef Q_COMPILER_NOEXCEPT
# endif // !_HAS_CPP0X
# if !defined(_HAS_NULLPTR_T) || !_HAS_NULLPTR_T
# undef Q_COMPILER_NULLPTR
# endif //!_HAS_NULLPTR_T
# if !defined(_HAS_CONSTEXPR) || !_HAS_CONSTEXPR
// The libcpp is missing constexpr keywords on important functions like std::numeric_limits<>::min()
// Disable constexpr support on QNX even if the compiler supports it
# undef Q_COMPILER_CONSTEXPR
# endif // !_HAS_CONSTEXPR
# endif // !__GLIBCXX__
# endif // Q_OS_QNX
# if (defined(Q_CC_CLANG) || defined(Q_CC_INTEL)) && defined(Q_OS_MAC) && defined(__GNUC_LIBSTD__) \
&& ((__GNUC_LIBSTD__-0) * 100 + __GNUC_LIBSTD_MINOR__-0 <= 402)
// Apple has not updated libstdc++ since 2007, which means it does not have
// <initializer_list> or std::move. Let's disable these features
# undef Q_COMPILER_INITIALIZER_LISTS
# undef Q_COMPILER_RVALUE_REFS
# undef Q_COMPILER_REF_QUALIFIERS
// Also disable <atomic>, since it's clearly not there
# undef Q_COMPILER_ATOMICS
# endif
# if defined(_LIBCPP_VERSION)
// libc++ uses __has_feature(cxx_atomic), so disable the feature if the compiler
// doesn't support it. That's required for the Intel compiler on OS X, for example.
# if !__has_feature(cxx_atomic)
# undef Q_COMPILER_ATOMICS
# endif
# endif
# if defined(Q_COMPILER_THREADSAFE_STATICS) && defined(Q_OS_MAC)
// Apple's low-level implementation of the C++ support library
// (libc++abi.dylib, shared between libstdc++ and libc++) has deadlocks. The
// C++11 standard requires the deadlocks to be removed, so this will eventually
// be fixed; for now, let's disable this.
# undef Q_COMPILER_THREADSAFE_STATICS
# endif
#endif
/*
* C++11 keywords and expressions
*/
#ifdef Q_COMPILER_NULLPTR
# define Q_NULLPTR nullptr
#else
# define Q_NULLPTR NULL
#endif
#ifdef Q_COMPILER_DEFAULT_MEMBERS
# define Q_DECL_EQ_DEFAULT = default
#else
# define Q_DECL_EQ_DEFAULT
#endif
#ifdef Q_COMPILER_DELETE_MEMBERS
# define Q_DECL_EQ_DELETE = delete
#else
# define Q_DECL_EQ_DELETE
#endif
// Don't break code that is already using Q_COMPILER_DEFAULT_DELETE_MEMBERS
#if defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
# define Q_COMPILER_DEFAULT_DELETE_MEMBERS
#endif
#if defined(__cpp_constexpr) && __cpp_constexpr-0 >= 201304
# define Q_DECL_CONSTEXPR constexpr
# define Q_DECL_RELAXED_CONSTEXPR constexpr
# define Q_CONSTEXPR constexpr
# define Q_RELAXED_CONSTEXPR constexpr
#elif defined Q_COMPILER_CONSTEXPR
# define Q_DECL_CONSTEXPR constexpr
# define Q_DECL_RELAXED_CONSTEXPR
# define Q_CONSTEXPR constexpr
# define Q_RELAXED_CONSTEXPR const
#else
# define Q_DECL_CONSTEXPR
# define Q_DECL_RELAXED_CONSTEXPR
# define Q_CONSTEXPR const
# define Q_RELAXED_CONSTEXPR const
#endif
#ifdef Q_COMPILER_EXPLICIT_OVERRIDES
# define Q_DECL_OVERRIDE override
# define Q_DECL_FINAL final
#else
# ifndef Q_DECL_OVERRIDE
# define Q_DECL_OVERRIDE
# endif
# ifndef Q_DECL_FINAL
# define Q_DECL_FINAL
# endif
#endif
#ifdef Q_COMPILER_NOEXCEPT
# define Q_DECL_NOEXCEPT noexcept
# define Q_DECL_NOEXCEPT_EXPR(x) noexcept(x)
# ifdef Q_DECL_NOTHROW
# undef Q_DECL_NOTHROW /* override with C++11 noexcept if available */
# endif
#else
# define Q_DECL_NOEXCEPT
# define Q_DECL_NOEXCEPT_EXPR(x)
#endif
#ifndef Q_DECL_NOTHROW
# define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
#endif
#if defined(Q_COMPILER_ALIGNOF) && !defined(Q_ALIGNOF)
# define Q_ALIGNOF(x) alignof(x)
#endif
/*
* Fallback macros to certain compiler features
*/
#ifndef Q_NORETURN
# define Q_NORETURN
#endif
#ifndef Q_LIKELY
# define Q_LIKELY(x) (x)
#endif
#ifndef Q_UNLIKELY
# define Q_UNLIKELY(x) (x)
#endif
#ifndef Q_ASSUME_IMPL
# define Q_ASSUME_IMPL(expr) qt_noop()
#endif
#ifndef Q_UNREACHABLE_IMPL
# define Q_UNREACHABLE_IMPL() qt_noop()
#endif
#ifndef Q_ALLOC_SIZE
# define Q_ALLOC_SIZE(x)
#endif
#ifndef Q_REQUIRED_RESULT
# define Q_REQUIRED_RESULT
#endif
#ifndef Q_DECL_DEPRECATED
# define Q_DECL_DEPRECATED
#endif
#ifndef Q_DECL_VARIABLE_DEPRECATED
# define Q_DECL_VARIABLE_DEPRECATED Q_DECL_DEPRECATED
#endif
#ifndef Q_DECL_DEPRECATED_X
# define Q_DECL_DEPRECATED_X(text) Q_DECL_DEPRECATED
#endif
#ifndef Q_DECL_EXPORT
# define Q_DECL_EXPORT
#endif
#ifndef Q_DECL_IMPORT
# define Q_DECL_IMPORT
#endif
#ifndef Q_DECL_HIDDEN
# define Q_DECL_HIDDEN
#endif
#ifndef Q_DECL_UNUSED
# define Q_DECL_UNUSED
#endif
#ifndef Q_DECL_UNUSED_MEMBER
# define Q_DECL_UNUSED_MEMBER
#endif
#ifndef Q_FUNC_INFO
# if defined(Q_OS_SOLARIS) || defined(Q_CC_XLC)
# define Q_FUNC_INFO __FILE__ "(line number unavailable)"
# else
# define Q_FUNC_INFO __FILE__ ":" QT_STRINGIFY(__LINE__)
# endif
#endif
#ifndef Q_DECL_CF_RETURNS_RETAINED
# define Q_DECL_CF_RETURNS_RETAINED
#endif
#ifndef Q_DECL_NS_RETURNS_AUTORELEASED
# define Q_DECL_NS_RETURNS_AUTORELEASED
#endif
#ifndef Q_DECL_PURE_FUNCTION
# define Q_DECL_PURE_FUNCTION
#endif
#ifndef Q_DECL_CONST_FUNCTION
# define Q_DECL_CONST_FUNCTION Q_DECL_PURE_FUNCTION
#endif
/*
* SG10's SD-6 feature detection and some useful extensions from Clang and GCC
* https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations
* http://clang.llvm.org/docs/LanguageExtensions.html#feature-checking-macros
*/
#ifdef __has_builtin
# define QT_HAS_BUILTIN(x) __has_builtin(x)
#else
# define QT_HAS_BUILTIN(x) 0
#endif
#ifdef __has_attribute
# define QT_HAS_ATTRIBUTE(x) __has_attribute(x)
#else
# define QT_HAS_ATTRIBUTE(x) 0
#endif
#ifdef __has_cpp_attribute
# define QT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
#else
# define QT_HAS_CPP_ATTRIBUTE(x) 0
#endif
#ifdef __has_include
# define QT_HAS_INCLUDE(x) __has_include(x)
#else
# define QT_HAS_INCLUDE(x) 0
#endif
#ifdef __has_include_next
# define QT_HAS_INCLUDE_NEXT(x) __has_include_next(x)
#else
# define QT_HAS_INCLUDE_NEXT(x) 0
#endif
/*
* Warning/diagnostic handling
*/
#define QT_DO_PRAGMA(text) _Pragma(#text)
#if defined(Q_CC_INTEL) && defined(Q_CC_MSVC)
/* icl.exe: Intel compiler on Windows */
# undef QT_DO_PRAGMA /* not needed */
# define QT_WARNING_PUSH __pragma(warning(push))
# define QT_WARNING_POP __pragma(warning(pop))
# define QT_WARNING_DISABLE_MSVC(number)
# define QT_WARNING_DISABLE_INTEL(number) __pragma(warning(disable: number))
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#elif defined(Q_CC_INTEL)
/* icc: Intel compiler on Linux or OS X */
# define QT_WARNING_PUSH QT_DO_PRAGMA(warning(push))
# define QT_WARNING_POP QT_DO_PRAGMA(warning(pop))
# define QT_WARNING_DISABLE_INTEL(number) QT_DO_PRAGMA(warning(disable: number))
# define QT_WARNING_DISABLE_MSVC(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#elif defined(Q_CC_MSVC) && _MSC_VER >= 1500 && !defined(Q_CC_CLANG)
# undef QT_DO_PRAGMA /* not needed */
# define QT_WARNING_PUSH __pragma(warning(push))
# define QT_WARNING_POP __pragma(warning(pop))
# define QT_WARNING_DISABLE_MSVC(number) __pragma(warning(disable: number))
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#elif defined(Q_CC_CLANG)
# define QT_WARNING_PUSH QT_DO_PRAGMA(clang diagnostic push)
# define QT_WARNING_POP QT_DO_PRAGMA(clang diagnostic pop)
# define QT_WARNING_DISABLE_CLANG(text) QT_DO_PRAGMA(clang diagnostic ignored text)
# define QT_WARNING_DISABLE_GCC(text)
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
#elif defined(Q_CC_GNU) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 406)
# define QT_WARNING_PUSH QT_DO_PRAGMA(GCC diagnostic push)
# define QT_WARNING_POP QT_DO_PRAGMA(GCC diagnostic pop)
# define QT_WARNING_DISABLE_GCC(text) QT_DO_PRAGMA(GCC diagnostic ignored text)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
#else // All other compilers, GCC < 4.6 and MSVC < 2008
# define QT_WARNING_DISABLE_GCC(text)
# define QT_WARNING_PUSH
# define QT_WARNING_POP
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#endif
/*
Proper for-scoping in MIPSpro CC
*/
#ifndef QT_NO_KEYWORDS
# if defined(Q_CC_MIPS) || (defined(Q_CC_HPACC) && defined(__ia64))
# define for if (0) {} else for
# endif
#endif
#ifdef Q_COMPILER_RVALUE_REFS
#define qMove(x) std::move(x)
#else
#define qMove(x) (x)
#endif
#define Q_UNREACHABLE() \
do {\
Q_ASSERT_X(false, "Q_UNREACHABLE()", "Q_UNREACHABLE was reached");\
Q_UNREACHABLE_IMPL();\
} while (0)
#define Q_ASSUME(Expr) \
do {\
const bool valueOfExpression = Expr;\
Q_ASSERT_X(valueOfExpression, "Q_ASSUME()", "Assumption in Q_ASSUME(\"" #Expr "\") was not correct");\
Q_ASSUME_IMPL(valueOfExpression);\
} while (0)
/*
Sanitize compiler feature availability
*/
#if !defined(Q_PROCESSOR_X86)
# undef QT_COMPILER_SUPPORTS_SSE2
# undef QT_COMPILER_SUPPORTS_SSE3
# undef QT_COMPILER_SUPPORTS_SSSE3
# undef QT_COMPILER_SUPPORTS_SSE4_1
# undef QT_COMPILER_SUPPORTS_SSE4_2
# undef QT_COMPILER_SUPPORTS_AVX
# undef QT_COMPILER_SUPPORTS_AVX2
#endif
#if !defined(Q_PROCESSOR_ARM)
# undef QT_COMPILER_SUPPORTS_NEON
#endif
#if !defined(Q_PROCESSOR_MIPS)
# undef QT_COMPILER_SUPPORTS_MIPS_DSP
# undef QT_COMPILER_SUPPORTS_MIPS_DSPR2
#endif
#endif // QCOMPILERDETECTION_H
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