Back to home page

EIC code displayed by LXR
 
 

    

File indexing completed on 2025-01-18 10:07:20 

0001 // Copyright (C) 2022 The Qt Company Ltd.
0002 // Copyright (C) 2016 Intel Corporation.
0003 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0004 
0005 #if 0
0006 #pragma qt_class(QtCompilerDetection)
0007 #pragma qt_sync_skip_header_check
0008 #pragma qt_sync_stop_processing
0009 #endif
0010 
0011 #ifndef QCOMPILERDETECTION_H
0012 #define QCOMPILERDETECTION_H
0013 
0014 #include <QtCore/qprocessordetection.h>
0015 #include <QtCore/qsystemdetection.h>
0016 #include <QtCore/qtconfiginclude.h>
0017 
0018 /*
0019    The compiler, must be one of: (Q_CC_x)
0020 
0021      COVERITY - Coverity cov-scan
0022      SYM      - Digital Mars C/C++ (used to be Symantec C++)
0023      MSVC     - Microsoft Visual C/C++, Intel C++ for Windows
0024      BOR      - Borland/Turbo C++
0025      WAT      - Watcom C++
0026      GNU      - GNU C++
0027      COMEAU   - Comeau C++
0028      EDG      - Edison Design Group C++
0029      OC       - CenterLine C++
0030      SUN      - Forte Developer, or Sun Studio C++
0031      MIPS     - MIPSpro C++
0032      DEC      - DEC C++
0033      HPACC    - HP aC++
0034      USLC     - SCO OUDK and UDK
0035      CDS      - Reliant C++
0036      KAI      - KAI C++
0037      INTEL    - Intel C++ for Linux, Intel C++ for Windows
0038      HIGHC    - MetaWare High C/C++
0039      PGI      - Portland Group C++
0040      GHS      - Green Hills Optimizing C++ Compilers
0041      RVCT     - ARM Realview Compiler Suite
0042      CLANG    - C++ front-end for the LLVM compiler
0043 
0044 
0045    Should be sorted most to least authoritative.
0046 */
0047 
0048 #if defined(__COVERITY__)
0049 #  define Q_CC_COVERITY
0050 #  define Q_COMPILER_COMPLAINS_ABOUT_RETURN_AFTER_UNREACHABLE
0051 #endif
0052 
0053 /* Symantec C++ is now Digital Mars */
0054 #if defined(__DMC__) || defined(__SC__)
0055 #  define Q_CC_SYM
0056 /* "explicit" semantics implemented in 8.1e but keyword recognized since 7.5 */
0057 #  if defined(__SC__) && __SC__ < 0x750
0058 #    error "Compiler not supported"
0059 #  endif
0060 
0061 #elif defined(_MSC_VER)
0062 #  define Q_CC_MSVC (_MSC_VER)
0063 #  define Q_CC_MSVC_NET
0064 #  define Q_CC_MSVC_ONLY Q_CC_MSVC
0065 #  ifdef __clang__
0066 #    undef Q_CC_MSVC_ONLY
0067 #    define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__)
0068 #    define Q_CC_CLANG_ONLY Q_CC_CLANG
0069 #  endif
0070 #  define Q_OUTOFLINE_TEMPLATE inline
0071 #  define Q_COMPILER_MANGLES_RETURN_TYPE
0072 #  define Q_COMPILER_MANGLES_ACCESS_SPECIFIER
0073 #  define Q_FUNC_INFO __FUNCSIG__
0074 #  define Q_ASSUME_IMPL(expr) __assume(expr)
0075 #  define Q_UNREACHABLE_IMPL() __assume(0)
0076 #  define Q_DECL_EXPORT __declspec(dllexport)
0077 #  define Q_DECL_IMPORT __declspec(dllimport)
0078 #  if _MSC_VER < 1938 // stdext is deprecated since VS 2022 17.8
0079 #    define QT_MAKE_CHECKED_ARRAY_ITERATOR(x, N) stdext::make_checked_array_iterator(x, size_t(N)) // Since _MSC_VER >= 1500
0080 #  endif
0081 #  define Q_COMPILER_COMPLAINS_ABOUT_RETURN_AFTER_UNREACHABLE
0082 
0083 #elif defined(__BORLANDC__) || defined(__TURBOC__)
0084 #  define Q_CC_BOR
0085 #  define Q_INLINE_TEMPLATE
0086 #  if __BORLANDC__ < 0x502
0087 #    error "Compiler not supported"
0088 #  endif
0089 
0090 #elif defined(__WATCOMC__)
0091 #  define Q_CC_WAT
0092 
0093 /* ARM Realview Compiler Suite
0094    RVCT compiler also defines __EDG__ and __GNUC__ (if --gnu flag is given),
0095    so check for it before that */
0096 #elif defined(__ARMCC__) || defined(__CC_ARM)
0097 #  define Q_CC_RVCT
0098 /* work-around for missing compiler intrinsics */
0099 #  define __is_empty(X) false
0100 #  define __is_pod(X) false
0101 #  define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
0102 #  ifdef Q_OS_LINUX
0103 #    define Q_DECL_EXPORT     __attribute__((visibility("default")))
0104 #    define Q_DECL_IMPORT     __attribute__((visibility("default")))
0105 #    define Q_DECL_HIDDEN     __attribute__((visibility("hidden")))
0106 #  else
0107 #    define Q_DECL_EXPORT     __declspec(dllexport)
0108 #    define Q_DECL_IMPORT     __declspec(dllimport)
0109 #  endif
0110 
0111 #elif defined(__GNUC__)
0112 #  define Q_CC_GNU          (__GNUC__ * 100 + __GNUC_MINOR__)
0113 #  if defined(__MINGW32__)
0114 #    define Q_CC_MINGW
0115 #  endif
0116 #  if defined(__clang__)
0117 /* Clang also masquerades as GCC */
0118 #    if defined(__apple_build_version__)
0119       // The Clang version reported by Apple Clang in __clang_major__
0120       // and __clang_minor__ does _not_ reflect the actual upstream
0121       // version of the compiler. To allow consumers to use a single
0122       // define to verify the Clang version we hard-code the versions
0123       // based on the best available info we have about the actual
0124       // version: http://en.wikipedia.org/wiki/Xcode#Toolchain_Versions
0125 #      if __apple_build_version__   >= 14030022 // Xcode 14.3
0126 #        define Q_CC_CLANG 1500
0127 #      elif __apple_build_version__ >= 14000029 // Xcode 14.0
0128 #        define Q_CC_CLANG 1400
0129 #      elif __apple_build_version__ >= 13160021 // Xcode 13.3
0130 #        define Q_CC_CLANG 1300
0131 #      elif __apple_build_version__ >= 13000029 // Xcode 13.0
0132 #        define Q_CC_CLANG 1200
0133 #      elif __apple_build_version__ >= 12050022 // Xcode 12.5
0134 #        define Q_CC_CLANG 1110
0135 #      elif __apple_build_version__ >= 12000032 // Xcode 12.0
0136 #        define Q_CC_CLANG 1000
0137 #      elif __apple_build_version__ >= 11030032 // Xcode 11.4
0138 #        define Q_CC_CLANG 900
0139 #      elif __apple_build_version__ >= 11000033 // Xcode 11.0
0140 #        define Q_CC_CLANG 800
0141 #      else
0142 #        error "Unsupported Apple Clang version"
0143 #      endif
0144 #    else
0145        // Non-Apple Clang, so we trust the versions reported
0146 #      define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__)
0147 #    endif
0148 #    define Q_CC_CLANG_ONLY Q_CC_CLANG
0149 #    if __has_builtin(__builtin_assume)
0150 #      define Q_ASSUME_IMPL(expr)   __builtin_assume(expr)
0151 #    else
0152 #      define Q_ASSUME_IMPL(expr)  if (expr){} else __builtin_unreachable()
0153 #    endif
0154 #    define Q_UNREACHABLE_IMPL() __builtin_unreachable()
0155 #    if !defined(__has_extension)
0156 #      /* Compatibility with older Clang versions */
0157 #      define __has_extension __has_feature
0158 #    endif
0159 #    if defined(__APPLE__)
0160      /* Apple/clang specific features */
0161 #      define Q_DECL_CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
0162 #      ifdef __OBJC__
0163 #        define Q_DECL_NS_RETURNS_AUTORELEASED __attribute__((ns_returns_autoreleased))
0164 #      endif
0165 #    endif
0166 #    ifdef __EMSCRIPTEN__
0167 #      define Q_CC_EMSCRIPTEN
0168 #    endif
0169 #  else
0170 /* Plain GCC */
0171 #    define Q_CC_GNU_ONLY Q_CC_GNU
0172 #    if Q_CC_GNU >= 405
0173 #      define Q_ASSUME_IMPL(expr)  if (expr){} else __builtin_unreachable()
0174 #      define Q_UNREACHABLE_IMPL() __builtin_unreachable()
0175 #      define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text)))
0176 #    endif
0177 #  endif
0178 
0179 #  ifdef Q_OS_WIN
0180 #    define Q_DECL_EXPORT     __declspec(dllexport)
0181 #    define Q_DECL_IMPORT     __declspec(dllimport)
0182 #  else
0183 #    define Q_DECL_EXPORT_OVERRIDABLE __attribute__((visibility("default"), weak))
0184 #    ifdef QT_USE_PROTECTED_VISIBILITY
0185 #      define Q_DECL_EXPORT     __attribute__((visibility("protected")))
0186 #    else
0187 #      define Q_DECL_EXPORT     __attribute__((visibility("default")))
0188 #    endif
0189 #    define Q_DECL_IMPORT     __attribute__((visibility("default")))
0190 #    define Q_DECL_HIDDEN     __attribute__((visibility("hidden")))
0191 #  endif
0192 
0193 #  define Q_FUNC_INFO       __PRETTY_FUNCTION__
0194 #  define Q_TYPEOF(expr)    __typeof__(expr)
0195 #  define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
0196 #  define Q_DECL_UNUSED     __attribute__((__unused__))
0197 #  define Q_LIKELY(expr)    __builtin_expect(!!(expr), true)
0198 #  define Q_UNLIKELY(expr)  __builtin_expect(!!(expr), false)
0199 #  define Q_NORETURN        __attribute__((__noreturn__))
0200 #  define Q_REQUIRED_RESULT __attribute__ ((__warn_unused_result__))
0201 #  define Q_DECL_PURE_FUNCTION __attribute__((pure))
0202 #  define Q_DECL_CONST_FUNCTION __attribute__((const))
0203 #  define Q_DECL_COLD_FUNCTION __attribute__((cold))
0204 #  if !defined(QT_MOC_CPP)
0205 #    define Q_PACKED __attribute__ ((__packed__))
0206 #    ifndef __ARM_EABI__
0207 #      define QT_NO_ARM_EABI
0208 #    endif
0209 #  endif
0210 #  if Q_CC_GNU >= 403 && !defined(Q_CC_CLANG)
0211 #      define Q_ALLOC_SIZE(x) __attribute__((alloc_size(x)))
0212 #  endif
0213 
0214 /* IBM compiler versions are a bit messy. There are actually two products:
0215    the C product, and the C++ product. The C++ compiler is always packaged
0216    with the latest version of the C compiler. Version numbers do not always
0217    match. This little table (I'm not sure it's accurate) should be helpful:
0218 
0219    C++ product                C product
0220 
0221    C Set 3.1                  C Compiler 3.0
0222    ...                        ...
0223    C++ Compiler 3.6.6         C Compiler 4.3
0224    ...                        ...
0225    Visual Age C++ 4.0         ...
0226    ...                        ...
0227    Visual Age C++ 5.0         C Compiler 5.0
0228    ...                        ...
0229    Visual Age C++ 6.0         C Compiler 6.0
0230 
0231    Now:
0232    __xlC__    is the version of the C compiler in hexadecimal notation
0233               is only an approximation of the C++ compiler version
0234    __IBMCPP__ is the version of the C++ compiler in decimal notation
0235               but it is not defined on older compilers like C Set 3.1 */
0236 #elif defined(__xlC__)
0237 #  define Q_CC_XLC
0238 #  if __xlC__ < 0x400
0239 #    error "Compiler not supported"
0240 #  elif __xlC__ >= 0x0600
0241 #    define Q_TYPEOF(expr)      __typeof__(expr)
0242 #    define Q_PACKED            __attribute__((__packed__))
0243 #  endif
0244 
0245 /* Older versions of DEC C++ do not define __EDG__ or __EDG - observed
0246    on DEC C++ V5.5-004. New versions do define  __EDG__ - observed on
0247    Compaq C++ V6.3-002.
0248    This compiler is different enough from other EDG compilers to handle
0249    it separately anyway. */
0250 #elif defined(__DECCXX) || defined(__DECC)
0251 #  define Q_CC_DEC
0252 /* Compaq C++ V6 compilers are EDG-based but I'm not sure about older
0253    DEC C++ V5 compilers. */
0254 #  if defined(__EDG__)
0255 #    define Q_CC_EDG
0256 #  endif
0257 /* Compaq has disabled EDG's _BOOL macro and uses _BOOL_EXISTS instead
0258    - observed on Compaq C++ V6.3-002.
0259    In any case versions prior to Compaq C++ V6.0-005 do not have bool. */
0260 #  if !defined(_BOOL_EXISTS)
0261 #    error "Compiler not supported"
0262 #  endif
0263 /* Spurious (?) error messages observed on Compaq C++ V6.5-014. */
0264 /* Apply to all versions prior to Compaq C++ V6.0-000 - observed on
0265    DEC C++ V5.5-004. */
0266 #  if __DECCXX_VER < 60060000
0267 #    define Q_BROKEN_TEMPLATE_SPECIALIZATION
0268 #  endif
0269 /* avoid undefined symbol problems with out-of-line template members */
0270 #  define Q_OUTOFLINE_TEMPLATE inline
0271 
0272 /* The Portland Group C++ compiler is based on EDG and does define __EDG__
0273    but the C compiler does not */
0274 #elif defined(__PGI)
0275 #  define Q_CC_PGI
0276 #  if defined(__EDG__)
0277 #    define Q_CC_EDG
0278 #  endif
0279 
0280 /* Compilers with EDG front end are similar. To detect them we test:
0281    __EDG documented by SGI, observed on MIPSpro 7.3.1.1 and KAI C++ 4.0b
0282    __EDG__ documented in EDG online docs, observed on Compaq C++ V6.3-002
0283    and PGI C++ 5.2-4 */
0284 #elif !defined(Q_OS_HPUX) && (defined(__EDG) || defined(__EDG__))
0285 #  define Q_CC_EDG
0286 /* From the EDG documentation (does not seem to apply to Compaq C++ or GHS C):
0287    _BOOL
0288         Defined in C++ mode when bool is a keyword. The name of this
0289         predefined macro is specified by a configuration flag. _BOOL
0290         is the default.
0291    __BOOL_DEFINED
0292         Defined in Microsoft C++ mode when bool is a keyword. */
0293 #  if !defined(_BOOL) && !defined(__BOOL_DEFINED) && !defined(__ghs)
0294 #    error "Compiler not supported"
0295 #  endif
0296 
0297 /* The Comeau compiler is based on EDG and does define __EDG__ */
0298 #  if defined(__COMO__)
0299 #    define Q_CC_COMEAU
0300 
0301 /* The `using' keyword was introduced to avoid KAI C++ warnings
0302    but it's now causing KAI C++ errors instead. The standard is
0303    unclear about the use of this keyword, and in practice every
0304    compiler is using its own set of rules. Forget it. */
0305 #  elif defined(__KCC)
0306 #    define Q_CC_KAI
0307 
0308 /* Uses CFront, make sure to read the manual how to tweak templates. */
0309 #  elif defined(__ghs)
0310 #    define Q_CC_GHS
0311 #    define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
0312 #    define Q_PACKED __attribute__ ((__packed__))
0313 #    define Q_FUNC_INFO       __PRETTY_FUNCTION__
0314 #    define Q_TYPEOF(expr)      __typeof__(expr)
0315 #    define Q_UNREACHABLE_IMPL()
0316 #    if defined(__cplusplus)
0317 #      define Q_COMPILER_AUTO_TYPE
0318 #      define Q_COMPILER_STATIC_ASSERT
0319 #      define Q_COMPILER_RANGE_FOR
0320 #      if __GHS_VERSION_NUMBER >= 201505
0321 #        define Q_COMPILER_ALIGNAS
0322 #        define Q_COMPILER_ALIGNOF
0323 #        define Q_COMPILER_ATOMICS
0324 #        define Q_COMPILER_ATTRIBUTES
0325 #        define Q_COMPILER_AUTO_FUNCTION
0326 #        define Q_COMPILER_CLASS_ENUM
0327 #        define Q_COMPILER_DECLTYPE
0328 #        define Q_COMPILER_DEFAULT_MEMBERS
0329 #        define Q_COMPILER_DELETE_MEMBERS
0330 #        define Q_COMPILER_DELEGATING_CONSTRUCTORS
0331 #        define Q_COMPILER_EXPLICIT_CONVERSIONS
0332 #        define Q_COMPILER_EXPLICIT_OVERRIDES
0333 #        define Q_COMPILER_EXTERN_TEMPLATES
0334 #        define Q_COMPILER_INHERITING_CONSTRUCTORS
0335 #        define Q_COMPILER_INITIALIZER_LISTS
0336 #        define Q_COMPILER_LAMBDA
0337 #        define Q_COMPILER_NONSTATIC_MEMBER_INIT
0338 #        define Q_COMPILER_NOEXCEPT
0339 #        define Q_COMPILER_NULLPTR
0340 #        define Q_COMPILER_RANGE_FOR
0341 #        define Q_COMPILER_RAW_STRINGS
0342 #        define Q_COMPILER_REF_QUALIFIERS
0343 #        define Q_COMPILER_RVALUE_REFS
0344 #        define Q_COMPILER_STATIC_ASSERT
0345 #        define Q_COMPILER_TEMPLATE_ALIAS
0346 #        define Q_COMPILER_THREAD_LOCAL
0347 #        define Q_COMPILER_UDL
0348 #        define Q_COMPILER_UNICODE_STRINGS
0349 #        define Q_COMPILER_UNIFORM_INIT
0350 #        define Q_COMPILER_UNRESTRICTED_UNIONS
0351 #        define Q_COMPILER_VARIADIC_MACROS
0352 #        define Q_COMPILER_VARIADIC_TEMPLATES
0353 #      endif
0354 #    endif //__cplusplus
0355 
0356 #  elif defined(__DCC__)
0357 #    define Q_CC_DIAB
0358 #    if !defined(__bool)
0359 #      error "Compiler not supported"
0360 #    endif
0361 
0362 /* The UnixWare 7 UDK compiler is based on EDG and does define __EDG__ */
0363 #  elif defined(__USLC__) && defined(__SCO_VERSION__)
0364 #    define Q_CC_USLC
0365 /* The latest UDK 7.1.1b does not need this, but previous versions do */
0366 #    if !defined(__SCO_VERSION__) || (__SCO_VERSION__ < 302200010)
0367 #      define Q_OUTOFLINE_TEMPLATE inline
0368 #    endif
0369 
0370 /* Never tested! */
0371 #  elif defined(CENTERLINE_CLPP) || defined(OBJECTCENTER)
0372 #    define Q_CC_OC
0373 
0374 /* CDS++ defines __EDG__ although this is not documented in the Reliant
0375    documentation. It also follows conventions like _BOOL and this documented */
0376 #  elif defined(sinix)
0377 #    define Q_CC_CDS
0378 #  endif
0379 
0380 /* VxWorks' DIAB toolchain has an additional EDG type C++ compiler
0381    (see __DCC__ above). This one is for C mode files (__EDG is not defined) */
0382 #elif defined(_DIAB_TOOL)
0383 #  define Q_CC_DIAB
0384 #  define Q_FUNC_INFO       __PRETTY_FUNCTION__
0385 
0386 /* Never tested! */
0387 #elif defined(__HIGHC__)
0388 #  define Q_CC_HIGHC
0389 
0390 #elif defined(__SUNPRO_CC) || defined(__SUNPRO_C)
0391 #  define Q_CC_SUN
0392 #  define Q_COMPILER_MANGLES_RETURN_TYPE
0393 /* 5.0 compiler or better
0394     'bool' is enabled by default but can be disabled using -features=nobool
0395     in which case _BOOL is not defined
0396         this is the default in 4.2 compatibility mode triggered by -compat=4 */
0397 #  if __SUNPRO_CC >= 0x500
0398 #    define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
0399    /* see http://developers.sun.com/sunstudio/support/Ccompare.html */
0400 #    if __SUNPRO_CC >= 0x590
0401 #      define Q_TYPEOF(expr)    __typeof__(expr)
0402 #    endif
0403 #    if __SUNPRO_CC >= 0x550
0404 #      define Q_DECL_EXPORT     __global
0405 #    endif
0406 #    if !defined(_BOOL)
0407 #      error "Compiler not supported"
0408 #    endif
0409 /* 4.2 compiler or older */
0410 #  else
0411 #    error "Compiler not supported"
0412 #  endif
0413 
0414 /* CDS++ does not seem to define __EDG__ or __EDG according to Reliant
0415    documentation but nevertheless uses EDG conventions like _BOOL */
0416 #elif defined(sinix)
0417 #  define Q_CC_EDG
0418 #  define Q_CC_CDS
0419 #  if !defined(_BOOL)
0420 #    error "Compiler not supported"
0421 #  endif
0422 #  define Q_BROKEN_TEMPLATE_SPECIALIZATION
0423 
0424 #else
0425 #  error "Qt has not been tested with this compiler - see http://www.qt-project.org/"
0426 #endif
0427 
0428 /*
0429  * SG10's SD-6 feature detection and some useful extensions from Clang and GCC
0430  * https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations
0431  * http://clang.llvm.org/docs/LanguageExtensions.html#feature-checking-macros
0432  * Not using wrapper macros, per http://eel.is/c++draft/cpp.cond#7.sentence-2
0433  */
0434 #ifndef __has_builtin
0435 #  define __has_builtin(x)             0
0436 #endif
0437 #ifndef __has_feature
0438 #  define __has_feature(x)             0
0439 #endif
0440 #ifndef __has_attribute
0441 #  define __has_attribute(x)           0
0442 #endif
0443 #ifndef __has_cpp_attribute
0444 #  define __has_cpp_attribute(x)       0
0445 #endif
0446 #ifndef __has_include
0447 #  define __has_include(x)             0
0448 #endif
0449 #ifndef __has_include_next
0450 #  define __has_include_next(x)        0
0451 #endif
0452 
0453 /*
0454    detecting ASAN can be helpful to disable slow tests
0455    clang uses feature, gcc  defines __SANITIZE_ADDRESS__
0456    unconditionally check both in case other compilers mirror
0457    either of those options
0458  */
0459 #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
0460 #  define QT_ASAN_ENABLED
0461 #endif
0462 
0463 #ifdef __cplusplus
0464 # if __has_include(<version>) /* remove this check once Integrity, QNX have caught up */
0465 #  include <version>
0466 # endif
0467 #endif
0468 
0469 /*
0470  * C++11 support
0471  *
0472  *  Paper           Macro                               SD-6 macro
0473  *  N2341           Q_COMPILER_ALIGNAS
0474  *  N2341           Q_COMPILER_ALIGNOF
0475  *  N2427           Q_COMPILER_ATOMICS
0476  *  N2761           Q_COMPILER_ATTRIBUTES               __cpp_attributes = 200809
0477  *  N2541           Q_COMPILER_AUTO_FUNCTION
0478  *  N1984 N2546     Q_COMPILER_AUTO_TYPE
0479  *  N2437           Q_COMPILER_CLASS_ENUM
0480  *  N2235           Q_COMPILER_CONSTEXPR                __cpp_constexpr = 200704
0481  *  N2343 N3276     Q_COMPILER_DECLTYPE                 __cpp_decltype = 200707
0482  *  N2346           Q_COMPILER_DEFAULT_MEMBERS
0483  *  N2346           Q_COMPILER_DELETE_MEMBERS
0484  *  N1986           Q_COMPILER_DELEGATING_CONSTRUCTORS
0485  *  N2437           Q_COMPILER_EXPLICIT_CONVERSIONS
0486  *  N3206 N3272     Q_COMPILER_EXPLICIT_OVERRIDES
0487  *  N1987           Q_COMPILER_EXTERN_TEMPLATES
0488  *  N2540           Q_COMPILER_INHERITING_CONSTRUCTORS
0489  *  N2672           Q_COMPILER_INITIALIZER_LISTS
0490  *  N2658 N2927     Q_COMPILER_LAMBDA                   __cpp_lambdas = 200907
0491  *  N2756           Q_COMPILER_NONSTATIC_MEMBER_INIT
0492  *  N2855 N3050     Q_COMPILER_NOEXCEPT
0493  *  N2431           Q_COMPILER_NULLPTR
0494  *  N2930           Q_COMPILER_RANGE_FOR
0495  *  N2442           Q_COMPILER_RAW_STRINGS              __cpp_raw_strings = 200710
0496  *  N2439           Q_COMPILER_REF_QUALIFIERS
0497  *  N2118 N2844 N3053 Q_COMPILER_RVALUE_REFS            __cpp_rvalue_references = 200610
0498  *  N1720           Q_COMPILER_STATIC_ASSERT            __cpp_static_assert = 200410
0499  *  N2258           Q_COMPILER_TEMPLATE_ALIAS
0500  *  N2659           Q_COMPILER_THREAD_LOCAL
0501  *  N2660           Q_COMPILER_THREADSAFE_STATICS
0502  *  N2765           Q_COMPILER_UDL                      __cpp_user_defined_literals = 200809
0503  *  N2442           Q_COMPILER_UNICODE_STRINGS          __cpp_unicode_literals = 200710
0504  *  N2640           Q_COMPILER_UNIFORM_INIT
0505  *  N2544           Q_COMPILER_UNRESTRICTED_UNIONS
0506  *  N1653           Q_COMPILER_VARIADIC_MACROS
0507  *  N2242 N2555     Q_COMPILER_VARIADIC_TEMPLATES       __cpp_variadic_templates = 200704
0508  *
0509  *
0510  * For the C++ standards C++14 and C++17, we use only the SD-6 macro.
0511  *
0512  * For any future version of the C++ standard, we use only the C++20 feature test macro.
0513  * For library features, we assume <version> is present (this header includes it).
0514  *
0515  * For a full listing of feature test macros, see
0516  *  https://en.cppreference.com/w/cpp/feature_test
0517  *
0518  * C++ extensions:
0519  *  Q_COMPILER_RESTRICTED_VLA       variable-length arrays, prior to __cpp_runtime_arrays
0520  */
0521 
0522 /*
0523  * Now that we require C++17, we unconditionally expect threadsafe statics mandated since C++11
0524  */
0525 #define Q_COMPILER_THREADSAFE_STATICS
0526 
0527 #if defined(Q_CC_CLANG)
0528 /* General C++ features */
0529 #  define Q_COMPILER_RESTRICTED_VLA
0530 #  if __has_feature(attribute_deprecated_with_message)
0531 #    define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text)))
0532 #  endif
0533 
0534 // Clang supports binary literals in C, C++98 and C++11 modes
0535 // It's been supported "since the dawn of time itself" (cf. commit 179883)
0536 #  if __has_extension(cxx_binary_literals)
0537 #    define Q_COMPILER_BINARY_LITERALS
0538 #  endif
0539 
0540 // Variadic macros are supported for gnu++98, c++11, c99 ... since 2.9
0541 #  if Q_CC_CLANG >= 209
0542 #    if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \
0543       || (defined(__cplusplus) && (__cplusplus >= 201103L)) \
0544       || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L))
0545 #      define Q_COMPILER_VARIADIC_MACROS
0546 #    endif
0547 #  endif
0548 
0549 /* C++11 features, see http://clang.llvm.org/cxx_status.html */
0550 #  if (defined(__cplusplus) && __cplusplus >= 201103L) \
0551       || defined(__GXX_EXPERIMENTAL_CXX0X__)
0552     /* Detect C++ features using __has_feature(), see http://clang.llvm.org/docs/LanguageExtensions.html#cxx11 */
0553 #    if __has_feature(cxx_alignas)
0554 #      define Q_COMPILER_ALIGNAS
0555 #      define Q_COMPILER_ALIGNOF
0556 #    endif
0557 #    if __has_feature(cxx_atomic) && __has_include(<atomic>)
0558 #     define Q_COMPILER_ATOMICS
0559 #    endif
0560 #    if __has_feature(cxx_attributes)
0561 #      define Q_COMPILER_ATTRIBUTES
0562 #    endif
0563 #    if __has_feature(cxx_auto_type)
0564 #      define Q_COMPILER_AUTO_FUNCTION
0565 #      define Q_COMPILER_AUTO_TYPE
0566 #    endif
0567 #    if __has_feature(cxx_strong_enums)
0568 #      define Q_COMPILER_CLASS_ENUM
0569 #    endif
0570 #    if __has_feature(cxx_constexpr) && Q_CC_CLANG > 302 /* CLANG 3.2 has bad/partial support */
0571 #      define Q_COMPILER_CONSTEXPR
0572 #    endif
0573 #    if __has_feature(cxx_decltype) /* && __has_feature(cxx_decltype_incomplete_return_types) */
0574 #      define Q_COMPILER_DECLTYPE
0575 #    endif
0576 #    if __has_feature(cxx_defaulted_functions)
0577 #      define Q_COMPILER_DEFAULT_MEMBERS
0578 #    endif
0579 #    if __has_feature(cxx_deleted_functions)
0580 #      define Q_COMPILER_DELETE_MEMBERS
0581 #    endif
0582 #    if __has_feature(cxx_delegating_constructors)
0583 #      define Q_COMPILER_DELEGATING_CONSTRUCTORS
0584 #    endif
0585 #    if __has_feature(cxx_explicit_conversions)
0586 #      define Q_COMPILER_EXPLICIT_CONVERSIONS
0587 #    endif
0588 #    if __has_feature(cxx_override_control)
0589 #      define Q_COMPILER_EXPLICIT_OVERRIDES
0590 #    endif
0591 #    if __has_feature(cxx_inheriting_constructors)
0592 #      define Q_COMPILER_INHERITING_CONSTRUCTORS
0593 #    endif
0594 #    if __has_feature(cxx_generalized_initializers)
0595 #      define Q_COMPILER_INITIALIZER_LISTS
0596 #      define Q_COMPILER_UNIFORM_INIT /* both covered by this feature macro, according to docs */
0597 #    endif
0598 #    if __has_feature(cxx_lambdas)
0599 #      define Q_COMPILER_LAMBDA
0600 #    endif
0601 #    if __has_feature(cxx_noexcept)
0602 #      define Q_COMPILER_NOEXCEPT
0603 #    endif
0604 #    if __has_feature(cxx_nonstatic_member_init)
0605 #      define Q_COMPILER_NONSTATIC_MEMBER_INIT
0606 #    endif
0607 #    if __has_feature(cxx_nullptr)
0608 #      define Q_COMPILER_NULLPTR
0609 #    endif
0610 #    if __has_feature(cxx_range_for)
0611 #      define Q_COMPILER_RANGE_FOR
0612 #    endif
0613 #    if __has_feature(cxx_raw_string_literals)
0614 #      define Q_COMPILER_RAW_STRINGS
0615 #    endif
0616 #    if __has_feature(cxx_reference_qualified_functions)
0617 #      define Q_COMPILER_REF_QUALIFIERS
0618 #    endif
0619 #    if __has_feature(cxx_rvalue_references)
0620 #      define Q_COMPILER_RVALUE_REFS
0621 #    endif
0622 #    if __has_feature(cxx_static_assert)
0623 #      define Q_COMPILER_STATIC_ASSERT
0624 #    endif
0625 #    if __has_feature(cxx_alias_templates)
0626 #      define Q_COMPILER_TEMPLATE_ALIAS
0627 #    endif
0628 #    if __has_feature(cxx_thread_local)
0629 #      if !defined(__FreeBSD__) /* FreeBSD clang fails on __cxa_thread_atexit */
0630 #        define Q_COMPILER_THREAD_LOCAL
0631 #      endif
0632 #    endif
0633 #    if __has_feature(cxx_user_literals)
0634 #      define Q_COMPILER_UDL
0635 #    endif
0636 #    if __has_feature(cxx_unicode_literals)
0637 #      define Q_COMPILER_UNICODE_STRINGS
0638 #    endif
0639 #    if __has_feature(cxx_unrestricted_unions)
0640 #      define Q_COMPILER_UNRESTRICTED_UNIONS
0641 #    endif
0642 #    if __has_feature(cxx_variadic_templates)
0643 #      define Q_COMPILER_VARIADIC_TEMPLATES
0644 #    endif
0645     /* Features that have no __has_feature() check */
0646 #    if Q_CC_CLANG >= 209 /* since clang 2.9 */
0647 #      define Q_COMPILER_EXTERN_TEMPLATES
0648 #    endif
0649 #  endif // (defined(__cplusplus) && __cplusplus >= 201103L) || defined(__GXX_EXPERIMENTAL_CXX0X__)
0650 
0651 /* C++1y features, deprecated macros. Do not update this list. */
0652 #  if defined(__cplusplus) && __cplusplus > 201103L
0653 //#    if __has_feature(cxx_binary_literals)
0654 //#      define Q_COMPILER_BINARY_LITERALS  // see above
0655 //#    endif
0656 #    if __has_feature(cxx_generic_lambda)
0657 #      define Q_COMPILER_GENERIC_LAMBDA
0658 #    endif
0659 #    if __has_feature(cxx_init_capture)
0660 #      define Q_COMPILER_LAMBDA_CAPTURES
0661 #    endif
0662 #    if __has_feature(cxx_relaxed_constexpr)
0663 #      define Q_COMPILER_RELAXED_CONSTEXPR_FUNCTIONS
0664 #    endif
0665 #    if __has_feature(cxx_decltype_auto) && __has_feature(cxx_return_type_deduction)
0666 #      define Q_COMPILER_RETURN_TYPE_DEDUCTION
0667 #    endif
0668 #    if __has_feature(cxx_variable_templates)
0669 #      define Q_COMPILER_VARIABLE_TEMPLATES
0670 #    endif
0671 #    if __has_feature(cxx_runtime_array)
0672 #      define Q_COMPILER_VLA
0673 #    endif
0674 #  endif // if defined(__cplusplus) && __cplusplus > 201103L
0675 
0676 #  if defined(__STDC_VERSION__)
0677 #    if __has_feature(c_static_assert)
0678 #      define Q_COMPILER_STATIC_ASSERT
0679 #    endif
0680 #    if __has_feature(c_thread_local) && __has_include(<threads.h>)
0681 #      if !defined(__FreeBSD__) /* FreeBSD clang fails on __cxa_thread_atexit */
0682 #        define Q_COMPILER_THREAD_LOCAL
0683 #      endif
0684 #    endif
0685 #  endif
0686 
0687 #  ifndef Q_DECL_UNUSED
0688 #    define Q_DECL_UNUSED __attribute__((__unused__))
0689 #  endif
0690 #  define Q_DECL_UNUSED_MEMBER Q_DECL_UNUSED
0691 #endif //  defined(Q_CC_CLANG)
0692 
0693 #if defined(Q_CC_GNU_ONLY)
0694 #  define Q_COMPILER_RESTRICTED_VLA
0695 #  if Q_CC_GNU >= 403
0696 //   GCC supports binary literals in C, C++98 and C++11 modes
0697 #    define Q_COMPILER_BINARY_LITERALS
0698 #  endif
0699 #  if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \
0700     || (defined(__cplusplus) && (__cplusplus >= 201103L)) \
0701     || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L))
0702      // Variadic macros are supported for gnu++98, c++11, C99 ... since forever (gcc 2.97)
0703 #    define Q_COMPILER_VARIADIC_MACROS
0704 #  endif
0705 #  if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
0706 #    if Q_CC_GNU >= 403
0707        /* C++11 features supported in GCC 4.3: */
0708 #      define Q_COMPILER_DECLTYPE
0709 #      define Q_COMPILER_RVALUE_REFS
0710 #      define Q_COMPILER_STATIC_ASSERT
0711 #    endif
0712 #    if Q_CC_GNU >= 404
0713        /* C++11 features supported in GCC 4.4: */
0714 #      define Q_COMPILER_AUTO_FUNCTION
0715 #      define Q_COMPILER_AUTO_TYPE
0716 #      define Q_COMPILER_EXTERN_TEMPLATES
0717 #      define Q_COMPILER_UNIFORM_INIT
0718 #      define Q_COMPILER_UNICODE_STRINGS
0719 #      define Q_COMPILER_VARIADIC_TEMPLATES
0720 #    endif
0721 #    if Q_CC_GNU >= 405
0722        /* C++11 features supported in GCC 4.5: */
0723 #      define Q_COMPILER_EXPLICIT_CONVERSIONS
0724        /* GCC 4.4 implements initializer_list but does not define typedefs required
0725         * by the standard. */
0726 #      define Q_COMPILER_INITIALIZER_LISTS
0727 #      define Q_COMPILER_LAMBDA
0728 #      define Q_COMPILER_RAW_STRINGS
0729 #      define Q_COMPILER_CLASS_ENUM
0730 #    endif
0731 #    if Q_CC_GNU >= 406
0732        /* Pre-4.6 compilers implement a non-final snapshot of N2346, hence default and delete
0733         * functions are supported only if they are public. Starting from 4.6, GCC handles
0734         * final version - the access modifier is not relevant. */
0735 #      define Q_COMPILER_DEFAULT_MEMBERS
0736 #      define Q_COMPILER_DELETE_MEMBERS
0737        /* C++11 features supported in GCC 4.6: */
0738 #      define Q_COMPILER_NULLPTR
0739 #      define Q_COMPILER_UNRESTRICTED_UNIONS
0740 #      define Q_COMPILER_RANGE_FOR
0741 #    endif
0742 #    if Q_CC_GNU >= 407
0743        /* GCC 4.4 implemented <atomic> and std::atomic using its old intrinsics.
0744         * However, the implementation is incomplete for most platforms until GCC 4.7:
0745         * instead, std::atomic would use an external lock. Since we need an std::atomic
0746         * that is behavior-compatible with QBasicAtomic, we only enable it here */
0747 #      define Q_COMPILER_ATOMICS
0748        /* GCC 4.6.x has problems dealing with noexcept expressions,
0749         * so turn the feature on for 4.7 and above, only */
0750 #      define Q_COMPILER_NOEXCEPT
0751        /* C++11 features supported in GCC 4.7: */
0752 #      define Q_COMPILER_NONSTATIC_MEMBER_INIT
0753 #      define Q_COMPILER_DELEGATING_CONSTRUCTORS
0754 #      define Q_COMPILER_EXPLICIT_OVERRIDES
0755 #      define Q_COMPILER_TEMPLATE_ALIAS
0756 #      define Q_COMPILER_UDL
0757 #    endif
0758 #    if Q_CC_GNU >= 408
0759 #      define Q_COMPILER_ATTRIBUTES
0760 #      define Q_COMPILER_ALIGNAS
0761 #      define Q_COMPILER_ALIGNOF
0762 #      define Q_COMPILER_INHERITING_CONSTRUCTORS
0763 #      define Q_COMPILER_THREAD_LOCAL
0764 #      if Q_CC_GNU > 408 || __GNUC_PATCHLEVEL__ >= 1
0765 #         define Q_COMPILER_REF_QUALIFIERS
0766 #      endif
0767 #    endif
0768 #    if Q_CC_GNU >= 500
0769        /* GCC 4.6 introduces constexpr, but it's bugged (at least) in the whole
0770         * 4.x series, see e.g. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57694 */
0771 #      define Q_COMPILER_CONSTEXPR
0772 #    endif
0773 #  endif
0774 #  if __cplusplus > 201103L
0775 #    if Q_CC_GNU >= 409
0776      /* C++1y features in GCC 4.9 - deprecated, do not update this list */
0777 //#    define Q_COMPILER_BINARY_LITERALS   // already supported since GCC 4.3 as an extension
0778 #      define Q_COMPILER_LAMBDA_CAPTURES
0779 #      define Q_COMPILER_RETURN_TYPE_DEDUCTION
0780 #    endif
0781 #  endif
0782 #  if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
0783 #    if Q_CC_GNU >= 407
0784        /* C11 features supported in GCC 4.7: */
0785 #      define Q_COMPILER_STATIC_ASSERT
0786 #    endif
0787 #    if Q_CC_GNU >= 409 && defined(__has_include)
0788        /* C11 features supported in GCC 4.9: */
0789 #      if __has_include(<threads.h>)
0790 #        define Q_COMPILER_THREAD_LOCAL
0791 #      endif
0792 #    endif
0793 #  endif
0794 #endif
0795 
0796 #if defined(Q_CC_MSVC) && !defined(Q_CC_CLANG)
0797 #  if defined(__cplusplus)
0798        /* C++11 features supported in VC8 = VC2005: */
0799 #      define Q_COMPILER_VARIADIC_MACROS
0800 
0801        /* 2005 supports the override and final contextual keywords, in
0802         the same positions as the C++11 variants, but 'final' is
0803         called 'sealed' instead:
0804         http://msdn.microsoft.com/en-us/library/0w2w91tf%28v=vs.80%29.aspx
0805         The behavior is slightly different in C++/CLI, which requires the
0806         "virtual" keyword to be present too, so don't define for that.
0807         So don't define Q_COMPILER_EXPLICIT_OVERRIDES (since it's not
0808         the same as the C++11 version), but define the Q_DECL_* flags
0809         accordingly. */
0810        /* C++11 features supported in VC10 = VC2010: */
0811 #      define Q_COMPILER_AUTO_FUNCTION
0812 #      define Q_COMPILER_AUTO_TYPE
0813 #      define Q_COMPILER_DECLTYPE
0814 #      define Q_COMPILER_EXTERN_TEMPLATES
0815 #      define Q_COMPILER_LAMBDA
0816 #      define Q_COMPILER_NULLPTR
0817 #      define Q_COMPILER_RVALUE_REFS
0818 #      define Q_COMPILER_STATIC_ASSERT
0819        /* C++11 features supported in VC11 = VC2012: */
0820 #      define Q_COMPILER_EXPLICIT_OVERRIDES /* ...and use std C++11 now   */
0821 #      define Q_COMPILER_CLASS_ENUM
0822 #      define Q_COMPILER_ATOMICS
0823        /* C++11 features in VC12 = VC2013 */
0824 #      define Q_COMPILER_DELETE_MEMBERS
0825 #      define Q_COMPILER_DELEGATING_CONSTRUCTORS
0826 #      define Q_COMPILER_EXPLICIT_CONVERSIONS
0827 #      define Q_COMPILER_NONSTATIC_MEMBER_INIT
0828 #      define Q_COMPILER_RAW_STRINGS
0829 #      define Q_COMPILER_TEMPLATE_ALIAS
0830 #      define Q_COMPILER_VARIADIC_TEMPLATES
0831 #      define Q_COMPILER_INITIALIZER_LISTS // VC 12 SP 2 RC
0832        /* C++11 features in VC14 = VC2015 */
0833 #      define Q_COMPILER_DEFAULT_MEMBERS
0834 #      define Q_COMPILER_ALIGNAS
0835 #      define Q_COMPILER_ALIGNOF
0836 #      define Q_COMPILER_INHERITING_CONSTRUCTORS
0837 #      define Q_COMPILER_NOEXCEPT
0838 #      define Q_COMPILER_RANGE_FOR
0839 #      define Q_COMPILER_REF_QUALIFIERS
0840 #      define Q_COMPILER_THREAD_LOCAL
0841 #      define Q_COMPILER_UDL
0842 #      define Q_COMPILER_UNICODE_STRINGS
0843 #      define Q_COMPILER_UNRESTRICTED_UNIONS
0844 #    if _MSC_FULL_VER >= 190023419
0845 #      define Q_COMPILER_ATTRIBUTES
0846 // Almost working, see https://connect.microsoft.com/VisualStudio/feedback/details/2011648
0847 //#      define Q_COMPILER_CONSTEXPR
0848 #      define Q_COMPILER_UNIFORM_INIT
0849 #    endif
0850 #    if _MSC_VER >= 1910
0851 #      define Q_COMPILER_CONSTEXPR
0852 #    endif
0853 // MSVC versions before 19.36 have a bug in C++20 comparison implementation.
0854 // This leads to ambiguities when resolving comparison operator overloads in
0855 // certain scenarios (the buggy MSVC versions were checked using our CI and
0856 // compiler explorer).
0857 #    if _MSC_VER < 1936
0858 #      define Q_COMPILER_LACKS_THREE_WAY_COMPARE_SYMMETRY
0859 #    endif
0860 // QTBUG-124376: MSVC is slow at compiling qstrnlen()
0861 #    define Q_COMPILER_SLOW_QSTRNLEN_COMPILATION
0862 #  endif /* __cplusplus */
0863 #endif // defined(Q_CC_MSVC) && !defined(Q_CC_CLANG)
0864 
0865 #ifdef Q_COMPILER_UNICODE_STRINGS
0866 #  define Q_STDLIB_UNICODE_STRINGS
0867 #elif defined(__cplusplus)
0868 #  error "Qt6 requires Unicode string support in both the compiler and the standard library"
0869 #endif
0870 
0871 #ifdef __cplusplus
0872 # include <utility>
0873 # if defined(Q_OS_QNX)
0874 // By default, QNX 7.0 uses libc++ (from LLVM) and
0875 // QNX 6.X uses Dinkumware's libcpp. In all versions,
0876 // it is also possible to use GNU libstdc++.
0877 
0878 // For Dinkumware, some features must be disabled
0879 // (mostly because of library problems).
0880 // Dinkumware is assumed when __GLIBCXX__ (GNU libstdc++)
0881 // and _LIBCPP_VERSION (LLVM libc++) are both absent.
0882 #  if !defined(__GLIBCXX__) && !defined(_LIBCPP_VERSION)
0883 
0884 // Older versions of libcpp (QNX 650) do not support C++11 features
0885 // _HAS_* macros are set to 1 by toolchains that actually include
0886 // Dinkum C++11 libcpp.
0887 
0888 #   if !defined(_HAS_CPP0X) || !_HAS_CPP0X
0889 // Disable C++11 features that depend on library support
0890 #    undef Q_COMPILER_INITIALIZER_LISTS
0891 #    undef Q_COMPILER_RVALUE_REFS
0892 #    undef Q_COMPILER_REF_QUALIFIERS
0893 #    undef Q_COMPILER_NOEXCEPT
0894 // Disable C++11 library features:
0895 #    undef Q_STDLIB_UNICODE_STRINGS
0896 #   endif // !_HAS_CPP0X
0897 #   if !defined(_HAS_NULLPTR_T) || !_HAS_NULLPTR_T
0898 #    undef Q_COMPILER_NULLPTR
0899 #   endif //!_HAS_NULLPTR_T
0900 #   if !defined(_HAS_CONSTEXPR) || !_HAS_CONSTEXPR
0901 // The libcpp is missing constexpr keywords on important functions like std::numeric_limits<>::min()
0902 // Disable constexpr support on QNX even if the compiler supports it
0903 #    undef Q_COMPILER_CONSTEXPR
0904 #   endif // !_HAS_CONSTEXPR
0905 #  endif // !__GLIBCXX__ && !_LIBCPP_VERSION
0906 # endif // Q_OS_QNX
0907 # if defined(Q_CC_CLANG) && defined(Q_OS_DARWIN)
0908 #  if defined(__GNUC_LIBSTD__) && ((__GNUC_LIBSTD__-0) * 100 + __GNUC_LIBSTD_MINOR__-0 <= 402)
0909 // Apple has not updated libstdc++ since 2007, which means it does not have
0910 // <initializer_list> or std::move. Let's disable these features
0911 #   undef Q_COMPILER_INITIALIZER_LISTS
0912 #   undef Q_COMPILER_RVALUE_REFS
0913 #   undef Q_COMPILER_REF_QUALIFIERS
0914 // Also disable <atomic>, since it's clearly not there
0915 #   undef Q_COMPILER_ATOMICS
0916 #  endif
0917 #  if defined(__cpp_lib_memory_resource) \
0918     && ((defined(__MAC_OS_X_VERSION_MIN_REQUIRED)  && __MAC_OS_X_VERSION_MIN_REQUIRED  < 140000) \
0919      || (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED < 170000))
0920 #   undef __cpp_lib_memory_resource // Only supported on macOS 14 and iOS 17
0921 #  endif
0922 # endif // defined(Q_CC_CLANG) && defined(Q_OS_DARWIN)
0923 #endif
0924 
0925 // Don't break code that is already using Q_COMPILER_DEFAULT_DELETE_MEMBERS
0926 #if defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
0927 #  define Q_COMPILER_DEFAULT_DELETE_MEMBERS
0928 #endif
0929 
0930 /*
0931  * Compatibility macros for C++11/14 keywords and expressions.
0932  * Don't use in new code and port away whenever you have a chance.
0933  */
0934 #define Q_ALIGNOF(x)                alignof(x)
0935 #define Q_DECL_ALIGN(n)             alignas(n)
0936 #define Q_DECL_NOTHROW              Q_DECL_NOEXCEPT
0937 #ifdef __cplusplus
0938 # define Q_CONSTEXPR                constexpr
0939 # define Q_DECL_CONSTEXPR           constexpr
0940 # define Q_DECL_EQ_DEFAULT          = default
0941 # define Q_DECL_EQ_DELETE           = delete
0942 # define Q_DECL_FINAL               final
0943 # define Q_DECL_NOEXCEPT            noexcept
0944 # define Q_DECL_NOEXCEPT_EXPR(x)    noexcept(x)
0945 # define Q_DECL_OVERRIDE            override
0946 # define Q_DECL_RELAXED_CONSTEXPR   constexpr
0947 # define Q_NULLPTR                  nullptr
0948 # define Q_RELAXED_CONSTEXPR        constexpr
0949 #else
0950 # define Q_CONSTEXPR                const
0951 # define Q_DECL_CONSTEXPR
0952 # define Q_DECL_RELAXED_CONSTEXPR
0953 # define Q_NULLPTR                  NULL
0954 # define Q_RELAXED_CONSTEXPR        const
0955 # ifdef Q_CC_GNU
0956 #  define Q_DECL_NOEXCEPT           __attribute__((__nothrow__))
0957 # else
0958 #  define Q_DECL_NOEXCEPT
0959 # endif
0960 #endif
0961 
0962 #if __has_cpp_attribute(nodiscard) && (!defined(Q_CC_CLANG) || __cplusplus > 201402L) // P0188R1
0963 // Can't use [[nodiscard]] with Clang and C++11/14, see https://bugs.llvm.org/show_bug.cgi?id=33518
0964 #  undef Q_REQUIRED_RESULT
0965 #  define Q_REQUIRED_RESULT [[nodiscard]]
0966 #endif
0967 
0968 #if __has_cpp_attribute(nodiscard) >= 201907L /* used for both P1771 and P1301... */
0969 // [[nodiscard]] constructor (P1771)
0970 #  ifndef Q_NODISCARD_CTOR
0971 #    define Q_NODISCARD_CTOR [[nodiscard]]
0972 #  endif
0973 // [[nodiscard("reason")]] (P1301)
0974 #  ifndef Q_NODISCARD_X
0975 #    define Q_NODISCARD_X(message) [[nodiscard(message)]]
0976 #  endif
0977 #  ifndef Q_NODISCARD_CTOR_X
0978 #    define Q_NODISCARD_CTOR_X(message) [[nodiscard(message)]]
0979 #  endif
0980 #endif
0981 
0982 #if __has_cpp_attribute(maybe_unused)
0983 #  undef Q_DECL_UNUSED
0984 #  define Q_DECL_UNUSED [[maybe_unused]]
0985 #endif
0986 
0987 #if __has_cpp_attribute(noreturn)
0988 #  undef Q_NORETURN
0989 #  define Q_NORETURN [[noreturn]]
0990 #endif
0991 
0992 #if __has_cpp_attribute(deprecated)
0993 #  ifdef Q_DECL_DEPRECATED
0994 #    undef Q_DECL_DEPRECATED
0995 #  endif
0996 #  ifdef Q_DECL_DEPRECATED_X
0997 #    undef Q_DECL_DEPRECATED_X
0998 #  endif
0999 #  define Q_DECL_DEPRECATED [[deprecated]]
1000 #  define Q_DECL_DEPRECATED_X(x) [[deprecated(x)]]
1001 #endif
1002 
1003 #define Q_DECL_ENUMERATOR_DEPRECATED Q_DECL_DEPRECATED
1004 #define Q_DECL_ENUMERATOR_DEPRECATED_X(x) Q_DECL_DEPRECATED_X(x)
1005 
1006 /*
1007  * Fallback macros to certain compiler features
1008  */
1009 
1010 #ifndef Q_NORETURN
1011 # define Q_NORETURN
1012 #endif
1013 #ifndef Q_LIKELY
1014 #  define Q_LIKELY(x) (x)
1015 #endif
1016 #ifndef Q_UNLIKELY
1017 #  define Q_UNLIKELY(x) (x)
1018 #endif
1019 #ifndef Q_ASSUME_IMPL
1020 #  define Q_ASSUME_IMPL(expr) qt_noop()
1021 #endif
1022 #ifndef Q_UNREACHABLE_IMPL
1023 #  define Q_UNREACHABLE_IMPL() qt_noop()
1024 #endif
1025 #ifndef Q_ALLOC_SIZE
1026 #  define Q_ALLOC_SIZE(x)
1027 #endif
1028 #ifndef Q_REQUIRED_RESULT
1029 #  define Q_REQUIRED_RESULT
1030 #endif
1031 #ifndef Q_NODISCARD_X
1032 #  define Q_NODISCARD_X(message) Q_REQUIRED_RESULT
1033 #endif
1034 #ifndef Q_NODISCARD_CTOR
1035 #  define Q_NODISCARD_CTOR
1036 #endif
1037 #ifndef Q_NODISCARD_CTOR_X
1038 #  define Q_NODISCARD_CTOR_X(message) Q_NODISCARD_CTOR
1039 #endif
1040 #ifndef Q_DECL_DEPRECATED
1041 #  define Q_DECL_DEPRECATED
1042 #endif
1043 #ifndef Q_DECL_VARIABLE_DEPRECATED
1044 #  define Q_DECL_VARIABLE_DEPRECATED Q_DECL_DEPRECATED
1045 #endif
1046 #ifndef Q_DECL_DEPRECATED_X
1047 #  define Q_DECL_DEPRECATED_X(text) Q_DECL_DEPRECATED
1048 #endif
1049 #ifndef Q_DECL_EXPORT
1050 #  define Q_DECL_EXPORT
1051 #endif
1052 #ifndef Q_DECL_EXPORT_OVERRIDABLE
1053 #  define Q_DECL_EXPORT_OVERRIDABLE Q_DECL_EXPORT
1054 #endif
1055 #ifndef Q_DECL_IMPORT
1056 #  define Q_DECL_IMPORT
1057 #endif
1058 #ifndef Q_DECL_HIDDEN
1059 #  define Q_DECL_HIDDEN
1060 #endif
1061 #ifndef Q_DECL_UNUSED
1062 #  define Q_DECL_UNUSED
1063 #endif
1064 #ifndef Q_DECL_UNUSED_MEMBER
1065 #  define Q_DECL_UNUSED_MEMBER
1066 #endif
1067 #ifndef Q_FUNC_INFO
1068 #  if defined(Q_OS_SOLARIS) || defined(Q_CC_XLC)
1069 #    define Q_FUNC_INFO __FILE__ "(line number unavailable)"
1070 #  else
1071 #    define Q_FUNC_INFO __FILE__ ":" QT_STRINGIFY(__LINE__)
1072 #  endif
1073 #endif
1074 #ifndef Q_DECL_CF_RETURNS_RETAINED
1075 #  define Q_DECL_CF_RETURNS_RETAINED
1076 #endif
1077 #ifndef Q_DECL_NS_RETURNS_AUTORELEASED
1078 #  define Q_DECL_NS_RETURNS_AUTORELEASED
1079 #endif
1080 #ifndef Q_DECL_PURE_FUNCTION
1081 #  define Q_DECL_PURE_FUNCTION
1082 #endif
1083 #ifndef Q_DECL_CONST_FUNCTION
1084 #  define Q_DECL_CONST_FUNCTION Q_DECL_PURE_FUNCTION
1085 #endif
1086 #ifndef Q_DECL_COLD_FUNCTION
1087 #  define Q_DECL_COLD_FUNCTION
1088 #endif
1089 #ifndef QT_MAKE_UNCHECKED_ARRAY_ITERATOR
1090 #  define QT_MAKE_UNCHECKED_ARRAY_ITERATOR(x) (x)
1091 #endif
1092 #ifndef QT_MAKE_CHECKED_ARRAY_ITERATOR
1093 #  define QT_MAKE_CHECKED_ARRAY_ITERATOR(x, N) (x)
1094 #endif
1095 
1096 /*
1097  * "Weak overloads" - makes an otherwise confliciting overload weaker
1098  * (by making it a template)
1099  */
1100 #ifndef Q_QDOC
1101 #  define Q_WEAK_OVERLOAD template <typename = void>
1102 #else
1103 #  define Q_WEAK_OVERLOAD
1104 #endif
1105 
1106 /*
1107  * If one wants to add functions that use post-C++17 APIs, one needs to:
1108  *
1109  * 1) make them fully inline; and
1110  * 2) guard them using the necessary feature-testing macros.
1111  *
1112  * This decouples the C++ version used to build Qt with the one used by
1113  * end-user applications; Qt and the application can either choose any C++
1114  * version.
1115  *
1116  * A problem arises on MSVC for member functions of exported classes. Client
1117  * code that tries to use such a function will see it as exported, and simply
1118  * try to consume the function's *symbol*. However, if Qt has been built in
1119  * C++17, it won't have such a symbol, and linking will fail.
1120  *
1121  * The workaround: declare such functions as function templates.
1122  * (Obviously a function template does not need this marker.)
1123 */
1124 #ifndef Q_QDOC
1125 #  define QT_POST_CXX17_API_IN_EXPORTED_CLASS template <typename = void>
1126 #else
1127 #  define QT_POST_CXX17_API_IN_EXPORTED_CLASS
1128 #endif
1129 
1130 /*
1131  * Warning/diagnostic handling
1132  */
1133 
1134 #define QT_DO_PRAGMA(text)                      _Pragma(#text)
1135 #if defined(Q_CC_MSVC) && !defined(Q_CC_CLANG)
1136 #  undef QT_DO_PRAGMA                           /* not needed */
1137 #  define QT_WARNING_PUSH                       __pragma(warning(push))
1138 #  define QT_WARNING_POP                        __pragma(warning(pop))
1139 #  define QT_WARNING_DISABLE_MSVC(number)       __pragma(warning(disable: number))
1140 #  define QT_WARNING_DISABLE_INTEL(number)
1141 #  define QT_WARNING_DISABLE_CLANG(text)
1142 #  define QT_WARNING_DISABLE_GCC(text)
1143 #  define QT_WARNING_DISABLE_DEPRECATED         QT_WARNING_DISABLE_MSVC(4996)
1144 #  define QT_WARNING_DISABLE_FLOAT_COMPARE
1145 #  define QT_WARNING_DISABLE_INVALID_OFFSETOF
1146 #elif defined(Q_CC_CLANG)
1147 #  define QT_WARNING_PUSH                       QT_DO_PRAGMA(clang diagnostic push)
1148 #  define QT_WARNING_POP                        QT_DO_PRAGMA(clang diagnostic pop)
1149 #  define QT_WARNING_DISABLE_CLANG(text)        QT_DO_PRAGMA(clang diagnostic ignored text)
1150 #  define QT_WARNING_DISABLE_GCC(text)
1151 #  define QT_WARNING_DISABLE_INTEL(number)
1152 #  define QT_WARNING_DISABLE_MSVC(number)
1153 #  define QT_WARNING_DISABLE_DEPRECATED         QT_WARNING_DISABLE_CLANG("-Wdeprecated-declarations")
1154 #  define QT_WARNING_DISABLE_FLOAT_COMPARE      QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
1155 #  define QT_WARNING_DISABLE_INVALID_OFFSETOF   QT_WARNING_DISABLE_CLANG("-Winvalid-offsetof")
1156 #elif defined(Q_CC_GNU) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 406)
1157 #  define QT_WARNING_PUSH                       QT_DO_PRAGMA(GCC diagnostic push)
1158 #  define QT_WARNING_POP                        QT_DO_PRAGMA(GCC diagnostic pop)
1159 #  define QT_WARNING_DISABLE_GCC(text)          QT_DO_PRAGMA(GCC diagnostic ignored text)
1160 #  define QT_WARNING_DISABLE_CLANG(text)
1161 #  define QT_WARNING_DISABLE_INTEL(number)
1162 #  define QT_WARNING_DISABLE_MSVC(number)
1163 #  define QT_WARNING_DISABLE_DEPRECATED         QT_WARNING_DISABLE_GCC("-Wdeprecated-declarations")
1164 #  define QT_WARNING_DISABLE_FLOAT_COMPARE      QT_WARNING_DISABLE_GCC("-Wfloat-equal")
1165 #  define QT_WARNING_DISABLE_INVALID_OFFSETOF   QT_WARNING_DISABLE_GCC("-Winvalid-offsetof")
1166 #else       // All other compilers, GCC < 4.6 and MSVC < 2008
1167 #  define QT_WARNING_DISABLE_GCC(text)
1168 #  define QT_WARNING_PUSH
1169 #  define QT_WARNING_POP
1170 #  define QT_WARNING_DISABLE_INTEL(number)
1171 #  define QT_WARNING_DISABLE_MSVC(number)
1172 #  define QT_WARNING_DISABLE_CLANG(text)
1173 #  define QT_WARNING_DISABLE_GCC(text)
1174 #  define QT_WARNING_DISABLE_DEPRECATED
1175 #  define QT_WARNING_DISABLE_FLOAT_COMPARE
1176 #  define QT_WARNING_DISABLE_INVALID_OFFSETOF
1177 #endif
1178 
1179 #ifndef QT_IGNORE_DEPRECATIONS
1180 #define QT_IGNORE_DEPRECATIONS(statement) \
1181     QT_WARNING_PUSH \
1182     QT_WARNING_DISABLE_DEPRECATED \
1183     statement \
1184     QT_WARNING_POP
1185 #endif
1186 
1187 // The body must be a statement:
1188 #define Q_CAST_IGNORE_ALIGN(body) QT_WARNING_PUSH QT_WARNING_DISABLE_GCC("-Wcast-align") body QT_WARNING_POP
1189 
1190 // This macro can be used to calculate member offsets for types with a non standard layout.
1191 // It uses the fact that offsetof() is allowed to support those types since C++17 as an optional
1192 // feature. All our compilers do support this, but some issue a warning, so we wrap the offsetof()
1193 // call in a macro that disables the compiler warning.
1194 #define Q_OFFSETOF(Class, member) \
1195     []() -> size_t { \
1196         QT_WARNING_PUSH QT_WARNING_DISABLE_INVALID_OFFSETOF \
1197         return offsetof(Class, member); \
1198         QT_WARNING_POP \
1199     }()
1200 
1201 /*
1202    Proper for-scoping in MIPSpro CC
1203 */
1204 #ifndef QT_NO_KEYWORDS
1205 #  if defined(Q_CC_MIPS) || (defined(Q_CC_HPACC) && defined(__ia64))
1206 #    define for if (0) {} else for
1207 #  endif
1208 #endif
1209 
1210 #ifdef Q_COMPILER_RVALUE_REFS
1211 #define qMove(x) std::move(x)
1212 #else
1213 #define qMove(x) (x)
1214 #endif
1215 
1216 #if defined(__cplusplus)
1217 #if __has_cpp_attribute(clang::fallthrough)
1218 #    define Q_FALLTHROUGH() [[clang::fallthrough]]
1219 #elif __has_cpp_attribute(gnu::fallthrough)
1220 #    define Q_FALLTHROUGH() [[gnu::fallthrough]]
1221 #elif __has_cpp_attribute(fallthrough)
1222 #  define Q_FALLTHROUGH() [[fallthrough]]
1223 #endif
1224 #endif
1225 #ifndef Q_FALLTHROUGH
1226 #  ifdef Q_CC_GNU
1227 #    define Q_FALLTHROUGH() __attribute__((fallthrough))
1228 #  else
1229 #    define Q_FALLTHROUGH() (void)0
1230 #  endif
1231 #endif
1232 
1233 
1234 /*
1235     Sanitize compiler feature availability
1236 */
1237 #if !defined(Q_PROCESSOR_X86)
1238 #  undef QT_COMPILER_SUPPORTS_SSE2
1239 #  undef QT_COMPILER_SUPPORTS_SSE3
1240 #  undef QT_COMPILER_SUPPORTS_SSSE3
1241 #  undef QT_COMPILER_SUPPORTS_SSE4_1
1242 #  undef QT_COMPILER_SUPPORTS_SSE4_2
1243 #  undef QT_COMPILER_SUPPORTS_AVX
1244 #  undef QT_COMPILER_SUPPORTS_AVX2
1245 #  undef QT_COMPILER_SUPPORTS_F16C
1246 #endif
1247 #if !defined(Q_PROCESSOR_ARM)
1248 #  undef QT_COMPILER_SUPPORTS_NEON
1249 #endif
1250 #if !defined(Q_PROCESSOR_MIPS)
1251 #  undef QT_COMPILER_SUPPORTS_MIPS_DSP
1252 #  undef QT_COMPILER_SUPPORTS_MIPS_DSPR2
1253 #endif
1254 
1255 // Compiler version check
1256 #if defined(__cplusplus) && (__cplusplus < 201703L)
1257 #  ifdef Q_CC_MSVC
1258 #    error "Qt requires a C++17 compiler, and a suitable value for __cplusplus. On MSVC, you must pass the /Zc:__cplusplus option to the compiler."
1259 #  else
1260 #    error "Qt requires a C++17 compiler"
1261 #  endif
1262 #endif // __cplusplus
1263 
1264 #if defined(__cplusplus) && defined(Q_CC_MSVC) && !defined(Q_CC_CLANG)
1265 #  if Q_CC_MSVC < 1927
1266      // Check below only works with 16.7 or newer
1267 #    error "Qt requires at least Visual Studio 2019 version 16.7 (VC++ version 14.27). Please upgrade."
1268 #  endif
1269 
1270 // On MSVC we require /permissive- set by user code. Check that we are
1271 // under its rules -- for instance, check that std::nullptr_t->bool is
1272 // not an implicit conversion, as per
1273 // https://docs.microsoft.com/en-us/cpp/overview/cpp-conformance-improvements?view=msvc-160#nullptr_t-is-only-convertible-to-bool-as-a-direct-initialization
1274 static_assert(!std::is_convertible_v<std::nullptr_t, bool>,
1275               "On MSVC you must pass the /permissive- option to the compiler.");
1276 #endif
1277 
1278 #if defined(QT_BOOTSTRAPPED) || defined(QT_USE_PROTECTED_VISIBILITY) || !defined(__ELF__) || defined(__PIC__)
1279 // this is fine
1280 #elif defined(QT_REDUCE_RELOCATIONS)
1281 #  error "You must build your code with position independent code if Qt was configured with -reduce-relocations. "\
1282          "Compile your code with -fPIC (and not with -fPIE)."
1283 #endif
1284 
1285 #ifdef Q_PROCESSOR_X86_32
1286 #  if defined(Q_CC_GNU)
1287 #    define QT_FASTCALL __attribute__((regparm(3)))
1288 #  elif defined(Q_CC_MSVC)
1289 #    define QT_FASTCALL __fastcall
1290 #  else
1291 #    define QT_FASTCALL
1292 #  endif
1293 #else
1294 #  define QT_FASTCALL
1295 #endif
1296 
1297 // enable gcc warnings for printf-style functions
1298 #if defined(Q_CC_GNU) && !defined(__INSURE__)
1299 #  if defined(Q_CC_MINGW) && !defined(Q_CC_CLANG)
1300 #    define Q_ATTRIBUTE_FORMAT_PRINTF(A, B) \
1301          __attribute__((format(gnu_printf, (A), (B))))
1302 #  else
1303 #    define Q_ATTRIBUTE_FORMAT_PRINTF(A, B) \
1304          __attribute__((format(printf, (A), (B))))
1305 #  endif
1306 #else
1307 #  define Q_ATTRIBUTE_FORMAT_PRINTF(A, B)
1308 #endif
1309 
1310 #ifdef Q_CC_MSVC
1311 #  define Q_NEVER_INLINE __declspec(noinline)
1312 #  define Q_ALWAYS_INLINE __forceinline
1313 #elif defined(Q_CC_GNU)
1314 #  define Q_NEVER_INLINE __attribute__((noinline))
1315 #  define Q_ALWAYS_INLINE inline __attribute__((always_inline))
1316 #else
1317 #  define Q_NEVER_INLINE
1318 #  define Q_ALWAYS_INLINE inline
1319 #endif
1320 
1321 //defines the type for the WNDPROC on windows
1322 //the alignment needs to be forced for sse2 to not crash with mingw
1323 #if defined(Q_OS_WIN)
1324 #  if defined(Q_CC_MINGW) && defined(Q_PROCESSOR_X86_32)
1325 #    define QT_ENSURE_STACK_ALIGNED_FOR_SSE __attribute__ ((force_align_arg_pointer))
1326 #  else
1327 #    define QT_ENSURE_STACK_ALIGNED_FOR_SSE
1328 #  endif
1329 #  define QT_WIN_CALLBACK CALLBACK QT_ENSURE_STACK_ALIGNED_FOR_SSE
1330 #endif
1331 
1332 #ifdef __cpp_conditional_explicit
1333 #define Q_IMPLICIT explicit(false)
1334 #else
1335 #define Q_IMPLICIT
1336 #endif
1337 
1338 #if defined(__cplusplus)
1339 
1340 #ifdef __cpp_constinit
1341 # if defined(Q_CC_MSVC) && !defined(Q_CC_CLANG)
1342    // https://developercommunity.visualstudio.com/t/C:-constinit-for-an-optional-fails-if-/1406069
1343 #  define Q_CONSTINIT
1344 # else
1345 #  define Q_CONSTINIT constinit
1346 # endif
1347 #elif defined(__has_cpp_attribute) && __has_cpp_attribute(clang::require_constant_initialization)
1348 # define Q_CONSTINIT [[clang::require_constant_initialization]]
1349 #elif defined(Q_CC_GNU_ONLY) && Q_CC_GNU >= 1000
1350 # define Q_CONSTINIT __constinit
1351 #else
1352 # define Q_CONSTINIT
1353 #endif
1354 
1355 #ifndef Q_OUTOFLINE_TEMPLATE
1356 #  define Q_OUTOFLINE_TEMPLATE
1357 #endif
1358 #ifndef Q_INLINE_TEMPLATE
1359 #  define Q_INLINE_TEMPLATE inline
1360 #endif
1361 
1362 /*
1363    Avoid some particularly useless warnings from some stupid compilers.
1364    To get ALL C++ compiler warnings, define QT_CC_WARNINGS or comment out
1365    the line "#define QT_NO_WARNINGS". See also QTBUG-26877.
1366 */
1367 #if !defined(QT_CC_WARNINGS)
1368 #  define QT_NO_WARNINGS
1369 #endif
1370 #if defined(QT_NO_WARNINGS)
1371 #  if defined(Q_CC_MSVC)
1372 QT_WARNING_DISABLE_MSVC(4251) /* class 'type' needs to have dll-interface to be used by clients of class 'type2' */
1373 QT_WARNING_DISABLE_MSVC(4244) /* conversion from 'type1' to 'type2', possible loss of data */
1374 QT_WARNING_DISABLE_MSVC(4275) /* non - DLL-interface classkey 'identifier' used as base for DLL-interface classkey 'identifier' */
1375 QT_WARNING_DISABLE_MSVC(4514) /* unreferenced inline function has been removed */
1376 QT_WARNING_DISABLE_MSVC(4800) /* 'type' : forcing value to bool 'true' or 'false' (performance warning) */
1377 QT_WARNING_DISABLE_MSVC(4097) /* typedef-name 'identifier1' used as synonym for class-name 'identifier2' */
1378 QT_WARNING_DISABLE_MSVC(4706) /* assignment within conditional expression */
1379 QT_WARNING_DISABLE_MSVC(4355) /* 'this' : used in base member initializer list */
1380 QT_WARNING_DISABLE_MSVC(4710) /* function not inlined */
1381 QT_WARNING_DISABLE_MSVC(4530) /* C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc */
1382 #  elif defined(Q_CC_BOR)
1383 #    pragma option -w-inl
1384 #    pragma option -w-aus
1385 #    pragma warn -inl
1386 #    pragma warn -pia
1387 #    pragma warn -ccc
1388 #    pragma warn -rch
1389 #    pragma warn -sig
1390 #  endif
1391 #endif
1392 
1393 #if !defined(QT_NO_EXCEPTIONS)
1394 #  if !defined(Q_MOC_RUN)
1395 #    if defined(Q_CC_GNU) && !defined(__cpp_exceptions)
1396 #      define QT_NO_EXCEPTIONS
1397 #    endif
1398 #  elif defined(QT_BOOTSTRAPPED)
1399 #    define QT_NO_EXCEPTIONS
1400 #  endif
1401 #endif
1402 
1403 // libstdc++ shipped with gcc < 11 does not have a fix for defect LWG 3346
1404 #if __cplusplus >= 202002L && (!defined(_GLIBCXX_RELEASE) || _GLIBCXX_RELEASE >= 11)
1405 #  define QT_COMPILER_HAS_LWG3346
1406 #endif
1407 
1408 #if defined(__cplusplus) && __cplusplus >= 202002L // P0846 doesn't have a feature macro :/
1409 # if !defined(Q_CC_MSVC_ONLY) || Q_CC_MSVC < 1939 // claims C++20 support but lacks P0846
1410                                                   // 1939 is known to work
1411                                                   // 1936 is known to fail
1412 #  define QT_COMPILER_HAS_P0846
1413 # endif
1414 #endif
1415 
1416 #ifdef QT_COMPILER_HAS_P0846
1417 #   define QT_ENABLE_P0846_SEMANTICS_FOR(func)
1418 #else
1419     class QT_CLASS_JUST_FOR_P0846_SIMULATION;
1420 #   define QT_ENABLE_P0846_SEMANTICS_FOR(func) \
1421         template <typename T> \
1422         void func (QT_CLASS_JUST_FOR_P0846_SIMULATION *); \
1423         /* end */
1424 #endif // !P0846
1425 
1426 #endif // __cplusplus
1427 
1428 #endif // QCOMPILERDETECTION_H
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.3.7 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!