/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Copyright (C) 2012 Intel Corporation ** Contact: http://www.qt-project.org/legal ** ** 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 Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional ** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QGLOBAL_H # include #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 # define Q_NO_USING_KEYWORD #elif defined(_MSC_VER) # define Q_CC_MSVC # define Q_CC_MSVC_NET # define Q_OUTOFLINE_TEMPLATE inline # define Q_NO_TEMPLATE_FRIENDS # 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) # define Q_DECL_DEPRECATED_X(text) __declspec(deprecated(text)) # 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 # 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 # define Q_NO_USING_KEYWORD #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 # define Q_C_CALLBACKS # if defined(__MINGW32__) # define Q_CC_MINGW # endif # if defined(__INTEL_COMPILER) /* Intel C++ also masquerades as GCC */ # define Q_CC_INTEL # 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 */ # define Q_CC_CLANG # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() # 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 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__)) # if !defined(QT_MOC_CPP) # define Q_PACKED __attribute__ ((__packed__)) # ifndef __ARM_EABI__ # define QT_NO_ARM_EABI # endif # endif # if (__GNUC__ * 100 + __GNUC_MINOR__) >= 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. */ # define Q_NO_USING_KEYWORD /* 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 # define Q_C_CALLBACKS /* 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 # define Q_NO_USING_KEYWORD /* Using the `using' keyword avoids Intel C++ for Linux warnings */ # elif defined(__INTEL_COMPILER) # define Q_CC_INTEL /* 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 # define Q_NO_USING_KEYWORD /* ### check "using" status */ /* Never tested! */ # elif defined(CENTERLINE_CLPP) || defined(OBJECTCENTER) # define Q_CC_OC # define Q_NO_USING_KEYWORD /* 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 # define Q_NO_USING_KEYWORD /* The MIPSpro compiler defines __EDG */ # elif defined(__sgi) # define Q_CC_MIPS # define Q_NO_USING_KEYWORD /* ### check "using" status */ # 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 # if defined(__SUNPRO_CC_COMPAT) && (__SUNPRO_CC_COMPAT <= 4) # define Q_NO_USING_KEYWORD # endif # define Q_C_CALLBACKS /* 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 # define Q_NO_USING_KEYWORD /* ### check "using" status */ #else # error "Qt has not been tested with this compiler - see http://www.qt-project.org/" #endif /* * C++11 support * * Paper Macro * N2341 Q_COMPILER_ALIGNAS * N2341 Q_COMPILER_ALIGNOF * N2427 Q_COMPILER_ATOMICS * N2761 Q_COMPILER_ATTRIBUTES * N2541 Q_COMPILER_AUTO_FUNCTION * N1984 N2546 Q_COMPILER_AUTO_TYPE * N2437 Q_COMPILER_CLASS_ENUM * N2235 Q_COMPILER_CONSTEXPR * N2343 N3276 Q_COMPILER_DECLTYPE * 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 (v0.9 and above only) * N1987 Q_COMPILER_EXTERN_TEMPLATES * N2540 Q_COMPILER_INHERITING_CONSTRUCTORS * N2672 Q_COMPILER_INITIALIZER_LISTS * N2658 N2927 Q_COMPILER_LAMBDA (v1.0 and above only) * 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 * N2439 Q_COMPILER_REF_QUALIFIERS * N2118 N2844 N3053 Q_COMPILER_RVALUE_REFS (Note: GCC 4.3 implements only the oldest) * N1720 Q_COMPILER_STATIC_ASSERT * N2258 Q_COMPILER_TEMPLATE_ALIAS * N2659 Q_COMPILER_THREAD_LOCAL * N2765 Q_COMPILER_UDL * N2442 Q_COMPILER_UNICODE_STRINGS * N2640 Q_COMPILER_UNIFORM_INIT * N2544 Q_COMPILER_UNRESTRICTED_UNIONS * N1653 Q_COMPILER_VARIADIC_MACROS * N2242 N2555 Q_COMPILER_VARIADIC_TEMPLATES * * C++1y proposed features * * N3472 Q_COMPILER_BINARY_LITERALS * N3649 Q_COMPILER_GENERIC_LAMBDA * N3638 Q_COMPILER_LAMBDA_CAPTURES * N3652 Q_COMPILER_RELAXED_CONSTEXPR_FUNCTIONS * N3386 N3638 Q_COMPILER_RETURN_TYPE_DEDUCTION * N3651 Q_COMPILER_VARIABLE_TEMPLATES * * C++14 Technical Specifications / C++17: * N3639 Q_COMPILER_VLA (see also Q_COMPILER_RESTRICTED_VLA) * */ #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 # 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 # 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 # define Q_COMPILER_UNICODE_STRINGS # 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 # define Q_COMPILER_CONSTEXPR # define Q_COMPILER_DELEGATING_CONSTRUCTORS # define Q_COMPILER_EXPLICIT_OVERRIDES # define Q_COMPILER_NONSTATIC_MEMBER_INIT # define Q_COMPILER_RAW_STRINGS # define Q_COMPILER_REF_QUALIFIERS # define Q_COMPILER_UNRESTRICTED_UNIONS # endif # endif #endif #if defined(Q_CC_CLANG) && !defined(Q_CC_INTEL) /* General C++ features */ # define Q_COMPILER_RESTRICTED_VLA # 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 ((__clang_major__ * 100) + __clang_minor__) >= 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 0 /* not implemented in clang yet */ # 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) # 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 ((__clang_major__ * 100) + __clang_minor__) >= 209 /* since clang 2.9 */ # define Q_COMPILER_EXTERN_TEMPLATES # endif # endif /* C++1y features, see http://clang.llvm.org/cxx_status.html and * http://clang.llvm.org/docs/LanguageExtensions.html#checks-for-standard-language-features */ # 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 #endif // Q_CC_CLANG #if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && !defined(Q_CC_CLANG) # define Q_COMPILER_RESTRICTED_VLA # if (__GNUC__ * 100 + __GNUC_MINOR__) >= 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 404 /* C++11 features supported in GCC 4.4: */ # define Q_COMPILER_AUTO_FUNCTION # define Q_COMPILER_AUTO_TYPE # define Q_COMPILER_CLASS_ENUM # define Q_COMPILER_DEFAULT_MEMBERS # define Q_COMPILER_DELETE_MEMBERS # define Q_COMPILER_EXTERN_TEMPLATES # define Q_COMPILER_INITIALIZER_LISTS # define Q_COMPILER_UNIFORM_INIT # define Q_COMPILER_UNICODE_STRINGS # define Q_COMPILER_VARIADIC_TEMPLATES # endif # if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405 /* C++11 features supported in GCC 4.5: */ # define Q_COMPILER_EXPLICIT_CONVERSIONS # define Q_COMPILER_LAMBDA # define Q_COMPILER_RAW_STRINGS # endif # if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406 /* 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 /* GCC 4.4 implemented 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 # define Q_COMPILER_ATTRIBUTES # define Q_COMPILER_ALIGNAS # define Q_COMPILER_ALIGNOF # define Q_COMPILER_INHERITING_CONSTRUCTORS # define Q_COMPILER_THREAD_LOCAL # if (__GNUC__ * 100 + __GNUC_MINOR__) > 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 (__GNUC__ * 100 + __GNUC_MINOR__) >= 409 /* C++1y features in GCC 4.9 */ //# 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 _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_LAMBDA # define Q_COMPILER_DECLTYPE # 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_RANGE_FOR # 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 */ #endif /* Q_CC_MSVC */ #ifdef __cplusplus # include # if defined(Q_OS_QNX) # if defined(_YVALS) || defined(_LIBCPP_VER) // QNX: libcpp (Dinkumware-based) doesn't have the // header, so the feature is useless, even if the compiler supports // it. Disable. # undef Q_COMPILER_INITIALIZER_LISTS // That libcpp doesn't have std::move either, so disable everything // related to rvalue refs. # undef Q_COMPILER_RVALUE_REFS # undef Q_COMPILER_REF_QUALIFIERS # endif # 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) // Mac OS X: Apple has not updated libstdc++ since 2007, which means it does not have // or std::move. Let's disable these features # undef Q_COMPILER_INITIALIZER_LISTS # undef Q_COMPILER_RVALUE_REFS # undef Q_COMPILER_REF_QUALIFIERS # 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 #ifdef Q_COMPILER_CONSTEXPR # define Q_DECL_CONSTEXPR constexpr # define Q_CONSTEXPR constexpr #else # define Q_DECL_CONSTEXPR # define Q_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_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 /* Workaround for static const members on MSVC++. */ #if defined(Q_CC_MSVC) # define QT_STATIC_CONST static # define QT_STATIC_CONST_IMPL #else # define QT_STATIC_CONST static const # define QT_STATIC_CONST_IMPL const #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);\ Q_UNUSED(valueOfExpression); /* the value may not be used if Q_ASSERT_X and Q_ASSUME_IMPL are noop */\ } 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_IWMMXT #endif #if !defined(Q_PROCESSOR_MIPS) # undef QT_COMPILER_SUPPORTS_MIPS_DSP # undef QT_COMPILER_SUPPORTS_MIPS_DSPR2 #endif #endif // QCOMPILERDETECTION_H